aboutsummaryrefslogtreecommitdiff
path: root/target/sh4
diff options
context:
space:
mode:
authorThomas Huth <thuth@redhat.com>2016-10-11 08:56:52 +0200
committerThomas Huth <thuth@redhat.com>2016-12-20 21:52:12 +0100
commitfcf5ef2ab52c621a4617ebbef36bf43b4003f4c0 (patch)
tree2b450d96b01455df8ed908bf8f26ddc388a03380 /target/sh4
parent82ecffa8c050bf5bbc13329e9b65eac1caa5b55c (diff)
Move target-* CPU file into a target/ folder
We've currently got 18 architectures in QEMU, and thus 18 target-xxx folders in the root folder of the QEMU source tree. More architectures (e.g. RISC-V, AVR) are likely to be included soon, too, so the main folder of the QEMU sources slowly gets quite overcrowded with the target-xxx folders. To disburden the main folder a little bit, let's move the target-xxx folders into a dedicated target/ folder, so that target-xxx/ simply becomes target/xxx/ instead. Acked-by: Laurent Vivier <laurent@vivier.eu> [m68k part] Acked-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de> [tricore part] Acked-by: Michael Walle <michael@walle.cc> [lm32 part] Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> [s390x part] Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> [s390x part] Acked-by: Eduardo Habkost <ehabkost@redhat.com> [i386 part] Acked-by: Artyom Tarasenko <atar4qemu@gmail.com> [sparc part] Acked-by: Richard Henderson <rth@twiddle.net> [alpha part] Acked-by: Max Filippov <jcmvbkbc@gmail.com> [xtensa part] Reviewed-by: David Gibson <david@gibson.dropbear.id.au> [ppc part] Acked-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> [cris&microblaze part] Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> [unicore32 part] Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'target/sh4')
-rw-r--r--target/sh4/Makefile.objs3
-rw-r--r--target/sh4/README.sh4150
-rw-r--r--target/sh4/cpu-qom.h65
-rw-r--r--target/sh4/cpu.c332
-rw-r--r--target/sh4/cpu.h391
-rw-r--r--target/sh4/gdbstub.c147
-rw-r--r--target/sh4/helper.c872
-rw-r--r--target/sh4/helper.h45
-rw-r--r--target/sh4/monitor.c53
-rw-r--r--target/sh4/op_helper.c498
-rw-r--r--target/sh4/translate.c1944
11 files changed, 4500 insertions, 0 deletions
diff --git a/target/sh4/Makefile.objs b/target/sh4/Makefile.objs
new file mode 100644
index 0000000000..2c25d96e65
--- /dev/null
+++ b/target/sh4/Makefile.objs
@@ -0,0 +1,3 @@
+obj-y += translate.o op_helper.o helper.o cpu.o
+obj-$(CONFIG_SOFTMMU) += monitor.o
+obj-y += gdbstub.o
diff --git a/target/sh4/README.sh4 b/target/sh4/README.sh4
new file mode 100644
index 0000000000..a192ca7540
--- /dev/null
+++ b/target/sh4/README.sh4
@@ -0,0 +1,150 @@
+qemu target: sh4
+author: Samuel Tardieu <sam@rfc1149.net>
+last modified: Tue Dec 6 07:22:44 CET 2005
+
+The sh4 target is not ready at all yet for integration in qemu. This
+file describes the current state of implementation.
+
+Most places requiring attention and/or modification can be detected by
+looking for "XXXXX" or "abort()".
+
+The sh4 core is located in target/sh4/*, while the 7750 peripheral
+features (IO ports for example) are located in hw/sh7750.[ch]. The
+main board description is in hw/shix.c, and the NAND flash in
+hw/tc58128.[ch].
+
+All the shortcomings indicated here will eventually be resolved. This
+is a work in progress. Features are added in a semi-random order: if a
+point is blocking to progress on booting the Linux kernel for the shix
+board, it is addressed first; if feedback is necessary and no progress
+can be made on blocking points until it is received, a random feature
+is worked on.
+
+Goals
+-----
+
+The primary model being worked on is the soft MMU target to be able to
+emulate the Shix 2.0 board by Alexis Polti, described at
+https://web.archive.org/web/20070917001736/http://perso.enst.fr/~polti/realisations/shix20/
+
+Ultimately, qemu will be coupled with a system C or a verilog
+simulator to simulate the whole board functionalities.
+
+A sh4 user-mode has also somewhat started but will be worked on
+afterwards. The goal is to automate tests for GNAT (GNU Ada) compiler
+that I ported recently to the sh4-linux target.
+
+Registers
+---------
+
+16 general purpose registers are available at any time. The first 8
+registers are banked and the non-directly visible ones can be accessed
+by privileged instructions. In qemu, we define 24 general purpose
+registers and the code generation use either [0-7]+[8-15] or
+[16-23]+[8-15] depending on the MD and RB flags in the sr
+configuration register.
+
+Instructions
+------------
+
+Most sh4 instructions have been implemented. The missing ones at this
+time are:
+ - FPU related instructions
+ - LDTLB to load a new MMU entry
+ - SLEEP to put the processor in sleep mode
+
+Most instructions could be optimized a lot. This will be worked on
+after the current model is fully functional unless debugging
+convenience requires that it is done early.
+
+Many instructions did not have a chance to be tested yet. The plan is
+to implement unit and regression testing of those in the future.
+
+MMU
+---
+
+The MMU is implemented in the sh4 core. MMU management has not been
+tested at all yet. In the sh7750, it can be manipulated through memory
+mapped registers and this part has not yet been implemented.
+
+Exceptions
+----------
+
+Exceptions are implemented as described in the sh4 reference manual
+but have not been tested yet. They do not use qemu EXCP_ features
+yet.
+
+IRQ
+---
+
+IRQ are not implemented yet.
+
+Peripheral features
+-------------------
+
+ + Serial ports
+
+Configuration and use of the first serial port (SCI) without
+interrupts is supported. Input has not yet been tested.
+
+Configuration of the second serial port (SCIF) is supported. FIFO
+handling infrastructure has been started but is not completed yet.
+
+ + GPIO ports
+
+GPIO ports have been implemented. A registration function allows
+external modules to register interest in some port changes (see
+hw/tc58128.[ch] for an example) and will be called back. Interrupt
+generation is not yet supported but some infrastructure is in place
+for this purpose. Note that in the current model a peripheral module
+cannot directly simulate a H->L->H input port transition and have an
+interrupt generated on the low level.
+
+ + TC58128 NAND flash
+
+TC58128 NAND flash is partially implemented through GPIO ports. It
+supports reading from flash.
+
+GDB
+---
+
+GDB remote target support has been implemented and lightly tested.
+
+Files
+-----
+
+File names are hardcoded at this time. The bootloader must be stored in
+shix_bios.bin in the current directory. The initial Linux image must
+be stored in shix_linux_nand.bin in the current directory in NAND
+format. Test files can be obtained from
+http://perso.enst.fr/~polti/robot/ as well as the various datasheets I
+use.
+
+qemu disk parameter on the command line is unused. You can supply any
+existing image and it will be ignored. As the goal is to simulate an
+embedded target, it is not clear how this parameter will be handled in
+the future.
+
+To build an ELF kernel image from the NAND image, 16 bytes have to be
+stripped off the end of every 528 bytes, keeping only 512 of them. The
+following Python code snippet does it:
+
+#! /usr/bin/python
+
+def denand (infd, outfd):
+ while True:
+ d = infd.read (528)
+ if not d: return
+ outfd.write (d[:512])
+
+if __name__ == '__main__':
+ import sys
+ denand (open (sys.argv[1], 'rb'),
+ open (sys.argv[2], 'wb'))
+
+Style isssues
+-------------
+
+There is currently a mix between my style (space before opening
+parenthesis) and qemu style. This will be resolved before final
+integration is proposed.
diff --git a/target/sh4/cpu-qom.h b/target/sh4/cpu-qom.h
new file mode 100644
index 0000000000..01abb206e4
--- /dev/null
+++ b/target/sh4/cpu-qom.h
@@ -0,0 +1,65 @@
+/*
+ * QEMU SuperH CPU
+ *
+ * Copyright (c) 2012 SUSE LINUX Products GmbH
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see
+ * <http://www.gnu.org/licenses/lgpl-2.1.html>
+ */
+#ifndef QEMU_SUPERH_CPU_QOM_H
+#define QEMU_SUPERH_CPU_QOM_H
+
+#include "qom/cpu.h"
+
+#define TYPE_SUPERH_CPU "superh-cpu"
+
+#define TYPE_SH7750R_CPU "sh7750r-" TYPE_SUPERH_CPU
+#define TYPE_SH7751R_CPU "sh7751r-" TYPE_SUPERH_CPU
+#define TYPE_SH7785_CPU "sh7785-" TYPE_SUPERH_CPU
+
+#define SUPERH_CPU_CLASS(klass) \
+ OBJECT_CLASS_CHECK(SuperHCPUClass, (klass), TYPE_SUPERH_CPU)
+#define SUPERH_CPU(obj) \
+ OBJECT_CHECK(SuperHCPU, (obj), TYPE_SUPERH_CPU)
+#define SUPERH_CPU_GET_CLASS(obj) \
+ OBJECT_GET_CLASS(SuperHCPUClass, (obj), TYPE_SUPERH_CPU)
+
+/**
+ * SuperHCPUClass:
+ * @parent_realize: The parent class' realize handler.
+ * @parent_reset: The parent class' reset handler.
+ * @name: The name.
+ * @pvr: Processor Version Register
+ * @prr: Processor Revision Register
+ * @cvr: Cache Version Register
+ *
+ * A SuperH CPU model.
+ */
+typedef struct SuperHCPUClass {
+ /*< private >*/
+ CPUClass parent_class;
+ /*< public >*/
+
+ DeviceRealize parent_realize;
+ void (*parent_reset)(CPUState *cpu);
+
+ const char *name;
+ uint32_t pvr;
+ uint32_t prr;
+ uint32_t cvr;
+} SuperHCPUClass;
+
+typedef struct SuperHCPU SuperHCPU;
+
+#endif
diff --git a/target/sh4/cpu.c b/target/sh4/cpu.c
new file mode 100644
index 0000000000..a38f6a6ded
--- /dev/null
+++ b/target/sh4/cpu.c
@@ -0,0 +1,332 @@
+/*
+ * QEMU SuperH CPU
+ *
+ * Copyright (c) 2005 Samuel Tardieu
+ * Copyright (c) 2012 SUSE LINUX Products GmbH
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see
+ * <http://www.gnu.org/licenses/lgpl-2.1.html>
+ */
+
+#include "qemu/osdep.h"
+#include "qapi/error.h"
+#include "cpu.h"
+#include "qemu-common.h"
+#include "migration/vmstate.h"
+#include "exec/exec-all.h"
+
+
+static void superh_cpu_set_pc(CPUState *cs, vaddr value)
+{
+ SuperHCPU *cpu = SUPERH_CPU(cs);
+
+ cpu->env.pc = value;
+}
+
+static void superh_cpu_synchronize_from_tb(CPUState *cs, TranslationBlock *tb)
+{
+ SuperHCPU *cpu = SUPERH_CPU(cs);
+
+ cpu->env.pc = tb->pc;
+ cpu->env.flags = tb->flags;
+}
+
+static bool superh_cpu_has_work(CPUState *cs)
+{
+ return cs->interrupt_request & CPU_INTERRUPT_HARD;
+}
+
+/* CPUClass::reset() */
+static void superh_cpu_reset(CPUState *s)
+{
+ SuperHCPU *cpu = SUPERH_CPU(s);
+ SuperHCPUClass *scc = SUPERH_CPU_GET_CLASS(cpu);
+ CPUSH4State *env = &cpu->env;
+
+ scc->parent_reset(s);
+
+ memset(env, 0, offsetof(CPUSH4State, id));
+ tlb_flush(s, 1);
+
+ env->pc = 0xA0000000;
+#if defined(CONFIG_USER_ONLY)
+ env->fpscr = FPSCR_PR; /* value for userspace according to the kernel */
+ set_float_rounding_mode(float_round_nearest_even, &env->fp_status); /* ?! */
+#else
+ env->sr = (1u << SR_MD) | (1u << SR_RB) | (1u << SR_BL) |
+ (1u << SR_I3) | (1u << SR_I2) | (1u << SR_I1) | (1u << SR_I0);
+ env->fpscr = FPSCR_DN | FPSCR_RM_ZERO; /* CPU reset value according to SH4 manual */
+ set_float_rounding_mode(float_round_to_zero, &env->fp_status);
+ set_flush_to_zero(1, &env->fp_status);
+#endif
+ set_default_nan_mode(1, &env->fp_status);
+ set_snan_bit_is_one(1, &env->fp_status);
+}
+
+static void superh_cpu_disas_set_info(CPUState *cpu, disassemble_info *info)
+{
+ info->mach = bfd_mach_sh4;
+ info->print_insn = print_insn_sh;
+}
+
+typedef struct SuperHCPUListState {
+ fprintf_function cpu_fprintf;
+ FILE *file;
+} SuperHCPUListState;
+
+/* Sort alphabetically by type name. */
+static gint superh_cpu_list_compare(gconstpointer a, gconstpointer b)
+{
+ ObjectClass *class_a = (ObjectClass *)a;
+ ObjectClass *class_b = (ObjectClass *)b;
+ const char *name_a, *name_b;
+
+ name_a = object_class_get_name(class_a);
+ name_b = object_class_get_name(class_b);
+ return strcmp(name_a, name_b);
+}
+
+static void superh_cpu_list_entry(gpointer data, gpointer user_data)
+{
+ ObjectClass *oc = data;
+ SuperHCPUClass *scc = SUPERH_CPU_CLASS(oc);
+ SuperHCPUListState *s = user_data;
+
+ (*s->cpu_fprintf)(s->file, "%s\n",
+ scc->name);
+}
+
+void sh4_cpu_list(FILE *f, fprintf_function cpu_fprintf)
+{
+ SuperHCPUListState s = {
+ .cpu_fprintf = cpu_fprintf,
+ .file = f,
+ };
+ GSList *list;
+
+ list = object_class_get_list(TYPE_SUPERH_CPU, false);
+ list = g_slist_sort(list, superh_cpu_list_compare);
+ g_slist_foreach(list, superh_cpu_list_entry, &s);
+ g_slist_free(list);
+}
+
+static gint superh_cpu_name_compare(gconstpointer a, gconstpointer b)
+{
+ const SuperHCPUClass *scc = SUPERH_CPU_CLASS(a);
+ const char *name = b;
+
+ return strcasecmp(scc->name, name);
+}
+
+static ObjectClass *superh_cpu_class_by_name(const char *cpu_model)
+{
+ ObjectClass *oc;
+ GSList *list, *item;
+
+ if (cpu_model == NULL) {
+ return NULL;
+ }
+ if (strcasecmp(cpu_model, "any") == 0) {
+ return object_class_by_name(TYPE_SH7750R_CPU);
+ }
+
+ oc = object_class_by_name(cpu_model);
+ if (oc != NULL && object_class_dynamic_cast(oc, TYPE_SUPERH_CPU) != NULL
+ && !object_class_is_abstract(oc)) {
+ return oc;
+ }
+
+ oc = NULL;
+ list = object_class_get_list(TYPE_SUPERH_CPU, false);
+ item = g_slist_find_custom(list, cpu_model, superh_cpu_name_compare);
+ if (item != NULL) {
+ oc = item->data;
+ }
+ g_slist_free(list);
+ return oc;
+}
+
+SuperHCPU *cpu_sh4_init(const char *cpu_model)
+{
+ return SUPERH_CPU(cpu_generic_init(TYPE_SUPERH_CPU, cpu_model));
+}
+
+static void sh7750r_cpu_initfn(Object *obj)
+{
+ SuperHCPU *cpu = SUPERH_CPU(obj);
+ CPUSH4State *env = &cpu->env;
+
+ env->id = SH_CPU_SH7750R;
+ env->features = SH_FEATURE_BCR3_AND_BCR4;
+}
+
+static void sh7750r_class_init(ObjectClass *oc, void *data)
+{
+ SuperHCPUClass *scc = SUPERH_CPU_CLASS(oc);
+
+ scc->name = "SH7750R";
+ scc->pvr = 0x00050000;
+ scc->prr = 0x00000100;
+ scc->cvr = 0x00110000;
+}
+
+static const TypeInfo sh7750r_type_info = {
+ .name = TYPE_SH7750R_CPU,
+ .parent = TYPE_SUPERH_CPU,
+ .class_init = sh7750r_class_init,
+ .instance_init = sh7750r_cpu_initfn,
+};
+
+static void sh7751r_cpu_initfn(Object *obj)
+{
+ SuperHCPU *cpu = SUPERH_CPU(obj);
+ CPUSH4State *env = &cpu->env;
+
+ env->id = SH_CPU_SH7751R;
+ env->features = SH_FEATURE_BCR3_AND_BCR4;
+}
+
+static void sh7751r_class_init(ObjectClass *oc, void *data)
+{
+ SuperHCPUClass *scc = SUPERH_CPU_CLASS(oc);
+
+ scc->name = "SH7751R";
+ scc->pvr = 0x04050005;
+ scc->prr = 0x00000113;
+ scc->cvr = 0x00110000; /* Neutered caches, should be 0x20480000 */
+}
+
+static const TypeInfo sh7751r_type_info = {
+ .name = TYPE_SH7751R_CPU,
+ .parent = TYPE_SUPERH_CPU,
+ .class_init = sh7751r_class_init,
+ .instance_init = sh7751r_cpu_initfn,
+};
+
+static void sh7785_cpu_initfn(Object *obj)
+{
+ SuperHCPU *cpu = SUPERH_CPU(obj);
+ CPUSH4State *env = &cpu->env;
+
+ env->id = SH_CPU_SH7785;
+ env->features = SH_FEATURE_SH4A;
+}
+
+static void sh7785_class_init(ObjectClass *oc, void *data)
+{
+ SuperHCPUClass *scc = SUPERH_CPU_CLASS(oc);
+
+ scc->name = "SH7785";
+ scc->pvr = 0x10300700;
+ scc->prr = 0x00000200;
+ scc->cvr = 0x71440211;
+}
+
+static const TypeInfo sh7785_type_info = {
+ .name = TYPE_SH7785_CPU,
+ .parent = TYPE_SUPERH_CPU,
+ .class_init = sh7785_class_init,
+ .instance_init = sh7785_cpu_initfn,
+};
+
+static void superh_cpu_realizefn(DeviceState *dev, Error **errp)
+{
+ CPUState *cs = CPU(dev);
+ SuperHCPUClass *scc = SUPERH_CPU_GET_CLASS(dev);
+ Error *local_err = NULL;
+
+ cpu_exec_realizefn(cs, &local_err);
+ if (local_err != NULL) {
+ error_propagate(errp, local_err);
+ return;
+ }
+
+ cpu_reset(cs);
+ qemu_init_vcpu(cs);
+
+ scc->parent_realize(dev, errp);
+}
+
+static void superh_cpu_initfn(Object *obj)
+{
+ CPUState *cs = CPU(obj);
+ SuperHCPU *cpu = SUPERH_CPU(obj);
+ CPUSH4State *env = &cpu->env;
+
+ cs->env_ptr = env;
+
+ env->movcal_backup_tail = &(env->movcal_backup);
+
+ if (tcg_enabled()) {
+ sh4_translate_init();
+ }
+}
+
+static const VMStateDescription vmstate_sh_cpu = {
+ .name = "cpu",
+ .unmigratable = 1,
+};
+
+static void superh_cpu_class_init(ObjectClass *oc, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(oc);
+ CPUClass *cc = CPU_CLASS(oc);
+ SuperHCPUClass *scc = SUPERH_CPU_CLASS(oc);
+
+ scc->parent_realize = dc->realize;
+ dc->realize = superh_cpu_realizefn;
+
+ scc->parent_reset = cc->reset;
+ cc->reset = superh_cpu_reset;
+
+ cc->class_by_name = superh_cpu_class_by_name;
+ cc->has_work = superh_cpu_has_work;
+ cc->do_interrupt = superh_cpu_do_interrupt;
+ cc->cpu_exec_interrupt = superh_cpu_exec_interrupt;
+ cc->dump_state = superh_cpu_dump_state;
+ cc->set_pc = superh_cpu_set_pc;
+ cc->synchronize_from_tb = superh_cpu_synchronize_from_tb;
+ cc->gdb_read_register = superh_cpu_gdb_read_register;
+ cc->gdb_write_register = superh_cpu_gdb_write_register;
+#ifdef CONFIG_USER_ONLY
+ cc->handle_mmu_fault = superh_cpu_handle_mmu_fault;
+#else
+ cc->get_phys_page_debug = superh_cpu_get_phys_page_debug;
+#endif
+ cc->disas_set_info = superh_cpu_disas_set_info;
+
+ cc->gdb_num_core_regs = 59;
+
+ dc->vmsd = &vmstate_sh_cpu;
+}
+
+static const TypeInfo superh_cpu_type_info = {
+ .name = TYPE_SUPERH_CPU,
+ .parent = TYPE_CPU,
+ .instance_size = sizeof(SuperHCPU),
+ .instance_init = superh_cpu_initfn,
+ .abstract = true,
+ .class_size = sizeof(SuperHCPUClass),
+ .class_init = superh_cpu_class_init,
+};
+
+static void superh_cpu_register_types(void)
+{
+ type_register_static(&superh_cpu_type_info);
+ type_register_static(&sh7750r_type_info);
+ type_register_static(&sh7751r_type_info);
+ type_register_static(&sh7785_type_info);
+}
+
+type_init(superh_cpu_register_types)
diff --git a/target/sh4/cpu.h b/target/sh4/cpu.h
new file mode 100644
index 0000000000..478ab55868
--- /dev/null
+++ b/target/sh4/cpu.h
@@ -0,0 +1,391 @@
+/*
+ * SH4 emulation
+ *
+ * Copyright (c) 2005 Samuel Tardieu
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef SH4_CPU_H
+#define SH4_CPU_H
+
+#include "qemu-common.h"
+#include "cpu-qom.h"
+
+#define TARGET_LONG_BITS 32
+
+/* CPU Subtypes */
+#define SH_CPU_SH7750 (1 << 0)
+#define SH_CPU_SH7750S (1 << 1)
+#define SH_CPU_SH7750R (1 << 2)
+#define SH_CPU_SH7751 (1 << 3)
+#define SH_CPU_SH7751R (1 << 4)
+#define SH_CPU_SH7785 (1 << 5)
+#define SH_CPU_SH7750_ALL (SH_CPU_SH7750 | SH_CPU_SH7750S | SH_CPU_SH7750R)
+#define SH_CPU_SH7751_ALL (SH_CPU_SH7751 | SH_CPU_SH7751R)
+
+#define CPUArchState struct CPUSH4State
+
+#include "exec/cpu-defs.h"
+
+#include "fpu/softfloat.h"
+
+#define TARGET_PAGE_BITS 12 /* 4k XXXXX */
+
+#define TARGET_PHYS_ADDR_SPACE_BITS 32
+#define TARGET_VIRT_ADDR_SPACE_BITS 32
+
+#define SR_MD 30
+#define SR_RB 29
+#define SR_BL 28
+#define SR_FD 15
+#define SR_M 9
+#define SR_Q 8
+#define SR_I3 7
+#define SR_I2 6
+#define SR_I1 5
+#define SR_I0 4
+#define SR_S 1
+#define SR_T 0
+
+#define FPSCR_MASK (0x003fffff)
+#define FPSCR_FR (1 << 21)
+#define FPSCR_SZ (1 << 20)
+#define FPSCR_PR (1 << 19)
+#define FPSCR_DN (1 << 18)
+#define FPSCR_CAUSE_MASK (0x3f << 12)
+#define FPSCR_CAUSE_SHIFT (12)
+#define FPSCR_CAUSE_E (1 << 17)
+#define FPSCR_CAUSE_V (1 << 16)
+#define FPSCR_CAUSE_Z (1 << 15)
+#define FPSCR_CAUSE_O (1 << 14)
+#define FPSCR_CAUSE_U (1 << 13)
+#define FPSCR_CAUSE_I (1 << 12)
+#define FPSCR_ENABLE_MASK (0x1f << 7)
+#define FPSCR_ENABLE_SHIFT (7)
+#define FPSCR_ENABLE_V (1 << 11)
+#define FPSCR_ENABLE_Z (1 << 10)
+#define FPSCR_ENABLE_O (1 << 9)
+#define FPSCR_ENABLE_U (1 << 8)
+#define FPSCR_ENABLE_I (1 << 7)
+#define FPSCR_FLAG_MASK (0x1f << 2)
+#define FPSCR_FLAG_SHIFT (2)
+#define FPSCR_FLAG_V (1 << 6)
+#define FPSCR_FLAG_Z (1 << 5)
+#define FPSCR_FLAG_O (1 << 4)
+#define FPSCR_FLAG_U (1 << 3)
+#define FPSCR_FLAG_I (1 << 2)
+#define FPSCR_RM_MASK (0x03 << 0)
+#define FPSCR_RM_NEAREST (0 << 0)
+#define FPSCR_RM_ZERO (1 << 0)
+
+#define DELAY_SLOT (1 << 0)
+#define DELAY_SLOT_CONDITIONAL (1 << 1)
+#define DELAY_SLOT_TRUE (1 << 2)
+#define DELAY_SLOT_CLEARME (1 << 3)
+/* The dynamic value of the DELAY_SLOT_TRUE flag determines whether the jump
+ * after the delay slot should be taken or not. It is calculated from SR_T.
+ *
+ * It is unclear if it is permitted to modify the SR_T flag in a delay slot.
+ * The use of DELAY_SLOT_TRUE flag makes us accept such SR_T modification.
+ */
+
+typedef struct tlb_t {
+ uint32_t vpn; /* virtual page number */
+ uint32_t ppn; /* physical page number */
+ uint32_t size; /* mapped page size in bytes */
+ uint8_t asid; /* address space identifier */
+ uint8_t v:1; /* validity */
+ uint8_t sz:2; /* page size */
+ uint8_t sh:1; /* share status */
+ uint8_t c:1; /* cacheability */
+ uint8_t pr:2; /* protection key */
+ uint8_t d:1; /* dirty */
+ uint8_t wt:1; /* write through */
+ uint8_t sa:3; /* space attribute (PCMCIA) */
+ uint8_t tc:1; /* timing control */
+} tlb_t;
+
+#define UTLB_SIZE 64
+#define ITLB_SIZE 4
+
+#define NB_MMU_MODES 2
+#define TARGET_INSN_START_EXTRA_WORDS 1
+
+enum sh_features {
+ SH_FEATURE_SH4A = 1,
+ SH_FEATURE_BCR3_AND_BCR4 = 2,
+};
+
+typedef struct memory_content {
+ uint32_t address;
+ uint32_t value;
+ struct memory_content *next;
+} memory_content;
+
+typedef struct CPUSH4State {
+ uint32_t flags; /* general execution flags */
+ uint32_t gregs[24]; /* general registers */
+ float32 fregs[32]; /* floating point registers */
+ uint32_t sr; /* status register (with T split out) */
+ uint32_t sr_m; /* M bit of status register */
+ uint32_t sr_q; /* Q bit of status register */
+ uint32_t sr_t; /* T bit of status register */
+ uint32_t ssr; /* saved status register */
+ uint32_t spc; /* saved program counter */
+ uint32_t gbr; /* global base register */
+ uint32_t vbr; /* vector base register */
+ uint32_t sgr; /* saved global register 15 */
+ uint32_t dbr; /* debug base register */
+ uint32_t pc; /* program counter */
+ uint32_t delayed_pc; /* target of delayed jump */
+ uint32_t mach; /* multiply and accumulate high */
+ uint32_t macl; /* multiply and accumulate low */
+ uint32_t pr; /* procedure register */
+ uint32_t fpscr; /* floating point status/control register */
+ uint32_t fpul; /* floating point communication register */
+
+ /* float point status register */
+ float_status fp_status;
+
+ /* Those belong to the specific unit (SH7750) but are handled here */
+ uint32_t mmucr; /* MMU control register */
+ uint32_t pteh; /* page table entry high register */
+ uint32_t ptel; /* page table entry low register */
+ uint32_t ptea; /* page table entry assistance register */
+ uint32_t ttb; /* tranlation table base register */
+ uint32_t tea; /* TLB exception address register */
+ uint32_t tra; /* TRAPA exception register */
+ uint32_t expevt; /* exception event register */
+ uint32_t intevt; /* interrupt event register */
+
+ tlb_t itlb[ITLB_SIZE]; /* instruction translation table */
+ tlb_t utlb[UTLB_SIZE]; /* unified translation table */
+
+ uint32_t ldst;
+
+ CPU_COMMON
+
+ /* Fields from here on are preserved over CPU reset. */
+ int id; /* CPU model */
+
+ /* The features that we should emulate. See sh_features above. */
+ uint32_t features;
+
+ void *intc_handle;
+ int in_sleep; /* SR_BL ignored during sleep */
+ memory_content *movcal_backup;
+ memory_content **movcal_backup_tail;
+} CPUSH4State;
+
+/**
+ * SuperHCPU:
+ * @env: #CPUSH4State
+ *
+ * A SuperH CPU.
+ */
+struct SuperHCPU {
+ /*< private >*/
+ CPUState parent_obj;
+ /*< public >*/
+
+ CPUSH4State env;
+};
+
+static inline SuperHCPU *sh_env_get_cpu(CPUSH4State *env)
+{
+ return container_of(env, SuperHCPU, env);
+}
+
+#define ENV_GET_CPU(e) CPU(sh_env_get_cpu(e))
+
+#define ENV_OFFSET offsetof(SuperHCPU, env)
+
+void superh_cpu_do_interrupt(CPUState *cpu);
+bool superh_cpu_exec_interrupt(CPUState *cpu, int int_req);
+void superh_cpu_dump_state(CPUState *cpu, FILE *f,
+ fprintf_function cpu_fprintf, int flags);
+hwaddr superh_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
+int superh_cpu_gdb_read_register(CPUState *cpu, uint8_t *buf, int reg);
+int superh_cpu_gdb_write_register(CPUState *cpu, uint8_t *buf, int reg);
+
+void sh4_translate_init(void);
+SuperHCPU *cpu_sh4_init(const char *cpu_model);
+int cpu_sh4_signal_handler(int host_signum, void *pinfo,
+ void *puc);
+int superh_cpu_handle_mmu_fault(CPUState *cpu, vaddr address, int rw,
+ int mmu_idx);
+
+void sh4_cpu_list(FILE *f, fprintf_function cpu_fprintf);
+#if !defined(CONFIG_USER_ONLY)
+void cpu_sh4_invalidate_tlb(CPUSH4State *s);
+uint32_t cpu_sh4_read_mmaped_itlb_addr(CPUSH4State *s,
+ hwaddr addr);
+void cpu_sh4_write_mmaped_itlb_addr(CPUSH4State *s, hwaddr addr,
+ uint32_t mem_value);
+uint32_t cpu_sh4_read_mmaped_itlb_data(CPUSH4State *s,
+ hwaddr addr);
+void cpu_sh4_write_mmaped_itlb_data(CPUSH4State *s, hwaddr addr,
+ uint32_t mem_value);
+uint32_t cpu_sh4_read_mmaped_utlb_addr(CPUSH4State *s,
+ hwaddr addr);
+void cpu_sh4_write_mmaped_utlb_addr(CPUSH4State *s, hwaddr addr,
+ uint32_t mem_value);
+uint32_t cpu_sh4_read_mmaped_utlb_data(CPUSH4State *s,
+ hwaddr addr);
+void cpu_sh4_write_mmaped_utlb_data(CPUSH4State *s, hwaddr addr,
+ uint32_t mem_value);
+#endif
+
+int cpu_sh4_is_cached(CPUSH4State * env, target_ulong addr);
+
+void cpu_load_tlb(CPUSH4State * env);
+
+#define cpu_init(cpu_model) CPU(cpu_sh4_init(cpu_model))
+
+#define cpu_signal_handler cpu_sh4_signal_handler
+#define cpu_list sh4_cpu_list
+
+/* MMU modes definitions */
+#define MMU_MODE0_SUFFIX _kernel
+#define MMU_MODE1_SUFFIX _user
+#define MMU_USER_IDX 1
+static inline int cpu_mmu_index (CPUSH4State *env, bool ifetch)
+{
+ return (env->sr & (1u << SR_MD)) == 0 ? 1 : 0;
+}
+
+#include "exec/cpu-all.h"
+
+/* Memory access type */
+enum {
+ /* Privilege */
+ ACCESS_PRIV = 0x01,
+ /* Direction */
+ ACCESS_WRITE = 0x02,
+ /* Type of instruction */
+ ACCESS_CODE = 0x10,
+ ACCESS_INT = 0x20
+};
+
+/* MMU control register */
+#define MMUCR 0x1F000010
+#define MMUCR_AT (1<<0)
+#define MMUCR_TI (1<<2)
+#define MMUCR_SV (1<<8)
+#define MMUCR_URC_BITS (6)
+#define MMUCR_URC_OFFSET (10)
+#define MMUCR_URC_SIZE (1 << MMUCR_URC_BITS)
+#define MMUCR_URC_MASK (((MMUCR_URC_SIZE) - 1) << MMUCR_URC_OFFSET)
+static inline int cpu_mmucr_urc (uint32_t mmucr)
+{
+ return ((mmucr & MMUCR_URC_MASK) >> MMUCR_URC_OFFSET);
+}
+
+/* PTEH : Page Translation Entry High register */
+#define PTEH_ASID_BITS (8)
+#define PTEH_ASID_SIZE (1 << PTEH_ASID_BITS)
+#define PTEH_ASID_MASK (PTEH_ASID_SIZE - 1)
+#define cpu_pteh_asid(pteh) ((pteh) & PTEH_ASID_MASK)
+#define PTEH_VPN_BITS (22)
+#define PTEH_VPN_OFFSET (10)
+#define PTEH_VPN_SIZE (1 << PTEH_VPN_BITS)
+#define PTEH_VPN_MASK (((PTEH_VPN_SIZE) - 1) << PTEH_VPN_OFFSET)
+static inline int cpu_pteh_vpn (uint32_t pteh)
+{
+ return ((pteh & PTEH_VPN_MASK) >> PTEH_VPN_OFFSET);
+}
+
+/* PTEL : Page Translation Entry Low register */
+#define PTEL_V (1 << 8)
+#define cpu_ptel_v(ptel) (((ptel) & PTEL_V) >> 8)
+#define PTEL_C (1 << 3)
+#define cpu_ptel_c(ptel) (((ptel) & PTEL_C) >> 3)
+#define PTEL_D (1 << 2)
+#define cpu_ptel_d(ptel) (((ptel) & PTEL_D) >> 2)
+#define PTEL_SH (1 << 1)
+#define cpu_ptel_sh(ptel)(((ptel) & PTEL_SH) >> 1)
+#define PTEL_WT (1 << 0)
+#define cpu_ptel_wt(ptel) ((ptel) & PTEL_WT)
+
+#define PTEL_SZ_HIGH_OFFSET (7)
+#define PTEL_SZ_HIGH (1 << PTEL_SZ_HIGH_OFFSET)
+#define PTEL_SZ_LOW_OFFSET (4)
+#define PTEL_SZ_LOW (1 << PTEL_SZ_LOW_OFFSET)
+static inline int cpu_ptel_sz (uint32_t ptel)
+{
+ int sz;
+ sz = (ptel & PTEL_SZ_HIGH) >> PTEL_SZ_HIGH_OFFSET;
+ sz <<= 1;
+ sz |= (ptel & PTEL_SZ_LOW) >> PTEL_SZ_LOW_OFFSET;
+ return sz;
+}
+
+#define PTEL_PPN_BITS (19)
+#define PTEL_PPN_OFFSET (10)
+#define PTEL_PPN_SIZE (1 << PTEL_PPN_BITS)
+#define PTEL_PPN_MASK (((PTEL_PPN_SIZE) - 1) << PTEL_PPN_OFFSET)
+static inline int cpu_ptel_ppn (uint32_t ptel)
+{
+ return ((ptel & PTEL_PPN_MASK) >> PTEL_PPN_OFFSET);
+}
+
+#define PTEL_PR_BITS (2)
+#define PTEL_PR_OFFSET (5)
+#define PTEL_PR_SIZE (1 << PTEL_PR_BITS)
+#define PTEL_PR_MASK (((PTEL_PR_SIZE) - 1) << PTEL_PR_OFFSET)
+static inline int cpu_ptel_pr (uint32_t ptel)
+{
+ return ((ptel & PTEL_PR_MASK) >> PTEL_PR_OFFSET);
+}
+
+/* PTEA : Page Translation Entry Assistance register */
+#define PTEA_SA_BITS (3)
+#define PTEA_SA_SIZE (1 << PTEA_SA_BITS)
+#define PTEA_SA_MASK (PTEA_SA_SIZE - 1)
+#define cpu_ptea_sa(ptea) ((ptea) & PTEA_SA_MASK)
+#define PTEA_TC (1 << 3)
+#define cpu_ptea_tc(ptea) (((ptea) & PTEA_TC) >> 3)
+
+#define TB_FLAG_PENDING_MOVCA (1 << 4)
+
+static inline target_ulong cpu_read_sr(CPUSH4State *env)
+{
+ return env->sr | (env->sr_m << SR_M) |
+ (env->sr_q << SR_Q) |
+ (env->sr_t << SR_T);
+}
+
+static inline void cpu_write_sr(CPUSH4State *env, target_ulong sr)
+{
+ env->sr_m = (sr >> SR_M) & 1;
+ env->sr_q = (sr >> SR_Q) & 1;
+ env->sr_t = (sr >> SR_T) & 1;
+ env->sr = sr & ~((1u << SR_M) | (1u << SR_Q) | (1u << SR_T));
+}
+
+static inline void cpu_get_tb_cpu_state(CPUSH4State *env, target_ulong *pc,
+ target_ulong *cs_base, uint32_t *flags)
+{
+ *pc = env->pc;
+ *cs_base = 0;
+ *flags = (env->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL
+ | DELAY_SLOT_TRUE | DELAY_SLOT_CLEARME)) /* Bits 0- 3 */
+ | (env->fpscr & (FPSCR_FR | FPSCR_SZ | FPSCR_PR)) /* Bits 19-21 */
+ | (env->sr & ((1u << SR_MD) | (1u << SR_RB))) /* Bits 29-30 */
+ | (env->sr & (1u << SR_FD)) /* Bit 15 */
+ | (env->movcal_backup ? TB_FLAG_PENDING_MOVCA : 0); /* Bit 4 */
+}
+
+#endif /* SH4_CPU_H */
diff --git a/target/sh4/gdbstub.c b/target/sh4/gdbstub.c
new file mode 100644
index 0000000000..13bea00d7d
--- /dev/null
+++ b/target/sh4/gdbstub.c
@@ -0,0 +1,147 @@
+/*
+ * SuperH gdb server stub
+ *
+ * Copyright (c) 2003-2005 Fabrice Bellard
+ * Copyright (c) 2013 SUSE LINUX Products GmbH
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+#include "qemu/osdep.h"
+#include "qemu-common.h"
+#include "cpu.h"
+#include "exec/gdbstub.h"
+
+/* Hint: Use "set architecture sh4" in GDB to see fpu registers */
+/* FIXME: We should use XML for this. */
+
+int superh_cpu_gdb_read_register(CPUState *cs, uint8_t *mem_buf, int n)
+{
+ SuperHCPU *cpu = SUPERH_CPU(cs);
+ CPUSH4State *env = &cpu->env;
+
+ switch (n) {
+ case 0 ... 7:
+ if ((env->sr & (1u << SR_MD)) && (env->sr & (1u << SR_RB))) {
+ return gdb_get_regl(mem_buf, env->gregs[n + 16]);
+ } else {
+ return gdb_get_regl(mem_buf, env->gregs[n]);
+ }
+ case 8 ... 15:
+ return gdb_get_regl(mem_buf, env->gregs[n]);
+ case 16:
+ return gdb_get_regl(mem_buf, env->pc);
+ case 17:
+ return gdb_get_regl(mem_buf, env->pr);
+ case 18:
+ return gdb_get_regl(mem_buf, env->gbr);
+ case 19:
+ return gdb_get_regl(mem_buf, env->vbr);
+ case 20:
+ return gdb_get_regl(mem_buf, env->mach);
+ case 21:
+ return gdb_get_regl(mem_buf, env->macl);
+ case 22:
+ return gdb_get_regl(mem_buf, cpu_read_sr(env));
+ case 23:
+ return gdb_get_regl(mem_buf, env->fpul);
+ case 24:
+ return gdb_get_regl(mem_buf, env->fpscr);
+ case 25 ... 40:
+ if (env->fpscr & FPSCR_FR) {
+ stfl_p(mem_buf, env->fregs[n - 9]);
+ } else {
+ stfl_p(mem_buf, env->fregs[n - 25]);
+ }
+ return 4;
+ case 41:
+ return gdb_get_regl(mem_buf, env->ssr);
+ case 42:
+ return gdb_get_regl(mem_buf, env->spc);
+ case 43 ... 50:
+ return gdb_get_regl(mem_buf, env->gregs[n - 43]);
+ case 51 ... 58:
+ return gdb_get_regl(mem_buf, env->gregs[n - (51 - 16)]);
+ }
+
+ return 0;
+}
+
+int superh_cpu_gdb_write_register(CPUState *cs, uint8_t *mem_buf, int n)
+{
+ SuperHCPU *cpu = SUPERH_CPU(cs);
+ CPUSH4State *env = &cpu->env;
+
+ switch (n) {
+ case 0 ... 7:
+ if ((env->sr & (1u << SR_MD)) && (env->sr & (1u << SR_RB))) {
+ env->gregs[n + 16] = ldl_p(mem_buf);
+ } else {
+ env->gregs[n] = ldl_p(mem_buf);
+ }
+ break;
+ case 8 ... 15:
+ env->gregs[n] = ldl_p(mem_buf);
+ break;
+ case 16:
+ env->pc = ldl_p(mem_buf);
+ break;
+ case 17:
+ env->pr = ldl_p(mem_buf);
+ break;
+ case 18:
+ env->gbr = ldl_p(mem_buf);
+ break;
+ case 19:
+ env->vbr = ldl_p(mem_buf);
+ break;
+ case 20:
+ env->mach = ldl_p(mem_buf);
+ break;
+ case 21:
+ env->macl = ldl_p(mem_buf);
+ break;
+ case 22:
+ cpu_write_sr(env, ldl_p(mem_buf));
+ break;
+ case 23:
+ env->fpul = ldl_p(mem_buf);
+ break;
+ case 24:
+ env->fpscr = ldl_p(mem_buf);
+ break;
+ case 25 ... 40:
+ if (env->fpscr & FPSCR_FR) {
+ env->fregs[n - 9] = ldfl_p(mem_buf);
+ } else {
+ env->fregs[n - 25] = ldfl_p(mem_buf);
+ }
+ break;
+ case 41:
+ env->ssr = ldl_p(mem_buf);
+ break;
+ case 42:
+ env->spc = ldl_p(mem_buf);
+ break;
+ case 43 ... 50:
+ env->gregs[n - 43] = ldl_p(mem_buf);
+ break;
+ case 51 ... 58:
+ env->gregs[n - (51 - 16)] = ldl_p(mem_buf);
+ break;
+ default:
+ return 0;
+ }
+
+ return 4;
+}
diff --git a/target/sh4/helper.c b/target/sh4/helper.c
new file mode 100644
index 0000000000..a33ac697c5
--- /dev/null
+++ b/target/sh4/helper.c
@@ -0,0 +1,872 @@
+/*
+ * SH4 emulation
+ *
+ * Copyright (c) 2005 Samuel Tardieu
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+#include "qemu/osdep.h"
+
+#include "cpu.h"
+#include "exec/exec-all.h"
+#include "exec/log.h"
+
+#if !defined(CONFIG_USER_ONLY)
+#include "hw/sh4/sh_intc.h"
+#endif
+
+#if defined(CONFIG_USER_ONLY)
+
+void superh_cpu_do_interrupt(CPUState *cs)
+{
+ cs->exception_index = -1;
+}
+
+int superh_cpu_handle_mmu_fault(CPUState *cs, vaddr address, int rw,
+ int mmu_idx)
+{
+ SuperHCPU *cpu = SUPERH_CPU(cs);
+ CPUSH4State *env = &cpu->env;
+
+ env->tea = address;
+ cs->exception_index = -1;
+ switch (rw) {
+ case 0:
+ cs->exception_index = 0x0a0;
+ break;
+ case 1:
+ cs->exception_index = 0x0c0;
+ break;
+ case 2:
+ cs->exception_index = 0x0a0;
+ break;
+ }
+ return 1;
+}
+
+int cpu_sh4_is_cached(CPUSH4State * env, target_ulong addr)
+{
+ /* For user mode, only U0 area is cacheable. */
+ return !(addr & 0x80000000);
+}
+
+#else /* !CONFIG_USER_ONLY */
+
+#define MMU_OK 0
+#define MMU_ITLB_MISS (-1)
+#define MMU_ITLB_MULTIPLE (-2)
+#define MMU_ITLB_VIOLATION (-3)
+#define MMU_DTLB_MISS_READ (-4)
+#define MMU_DTLB_MISS_WRITE (-5)
+#define MMU_DTLB_INITIAL_WRITE (-6)
+#define MMU_DTLB_VIOLATION_READ (-7)
+#define MMU_DTLB_VIOLATION_WRITE (-8)
+#define MMU_DTLB_MULTIPLE (-9)
+#define MMU_DTLB_MISS (-10)
+#define MMU_IADDR_ERROR (-11)
+#define MMU_DADDR_ERROR_READ (-12)
+#define MMU_DADDR_ERROR_WRITE (-13)
+
+void superh_cpu_do_interrupt(CPUState *cs)
+{
+ SuperHCPU *cpu = SUPERH_CPU(cs);
+ CPUSH4State *env = &cpu->env;
+ int do_irq = cs->interrupt_request & CPU_INTERRUPT_HARD;
+ int do_exp, irq_vector = cs->exception_index;
+
+ /* prioritize exceptions over interrupts */
+
+ do_exp = cs->exception_index != -1;
+ do_irq = do_irq && (cs->exception_index == -1);
+
+ if (env->sr & (1u << SR_BL)) {
+ if (do_exp && cs->exception_index != 0x1e0) {
+ cs->exception_index = 0x000; /* masked exception -> reset */
+ }
+ if (do_irq && !env->in_sleep) {
+ return; /* masked */
+ }
+ }
+ env->in_sleep = 0;
+
+ if (do_irq) {
+ irq_vector = sh_intc_get_pending_vector(env->intc_handle,
+ (env->sr >> 4) & 0xf);
+ if (irq_vector == -1) {
+ return; /* masked */
+ }
+ }
+
+ if (qemu_loglevel_mask(CPU_LOG_INT)) {
+ const char *expname;
+ switch (cs->exception_index) {
+ case 0x0e0:
+ expname = "addr_error";
+ break;
+ case 0x040:
+ expname = "tlb_miss";
+ break;
+ case 0x0a0:
+ expname = "tlb_violation";
+ break;
+ case 0x180:
+ expname = "illegal_instruction";
+ break;
+ case 0x1a0:
+ expname = "slot_illegal_instruction";
+ break;
+ case 0x800:
+ expname = "fpu_disable";
+ break;
+ case 0x820:
+ expname = "slot_fpu";
+ break;
+ case 0x100:
+ expname = "data_write";
+ break;
+ case 0x060:
+ expname = "dtlb_miss_write";
+ break;
+ case 0x0c0:
+ expname = "dtlb_violation_write";
+ break;
+ case 0x120:
+ expname = "fpu_exception";
+ break;
+ case 0x080:
+ expname = "initial_page_write";
+ break;
+ case 0x160:
+ expname = "trapa";
+ break;
+ default:
+ expname = do_irq ? "interrupt" : "???";
+ break;
+ }
+ qemu_log("exception 0x%03x [%s] raised\n",
+ irq_vector, expname);
+ log_cpu_state(cs, 0);
+ }
+
+ env->ssr = cpu_read_sr(env);
+ env->spc = env->pc;
+ env->sgr = env->gregs[15];
+ env->sr |= (1u << SR_BL) | (1u << SR_MD) | (1u << SR_RB);
+
+ if (env->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) {
+ /* Branch instruction should be executed again before delay slot. */
+ env->spc -= 2;
+ /* Clear flags for exception/interrupt routine. */
+ env->flags &= ~(DELAY_SLOT | DELAY_SLOT_CONDITIONAL | DELAY_SLOT_TRUE);
+ }
+ if (env->flags & DELAY_SLOT_CLEARME)
+ env->flags = 0;
+
+ if (do_exp) {
+ env->expevt = cs->exception_index;
+ switch (cs->exception_index) {
+ case 0x000:
+ case 0x020:
+ case 0x140:
+ env->sr &= ~(1u << SR_FD);
+ env->sr |= 0xf << 4; /* IMASK */
+ env->pc = 0xa0000000;
+ break;
+ case 0x040:
+ case 0x060:
+ env->pc = env->vbr + 0x400;
+ break;
+ case 0x160:
+ env->spc += 2; /* special case for TRAPA */
+ /* fall through */
+ default:
+ env->pc = env->vbr + 0x100;
+ break;
+ }
+ return;
+ }
+
+ if (do_irq) {
+ env->intevt = irq_vector;
+ env->pc = env->vbr + 0x600;
+ return;
+ }
+}
+
+static void update_itlb_use(CPUSH4State * env, int itlbnb)
+{
+ uint8_t or_mask = 0, and_mask = (uint8_t) - 1;
+
+ switch (itlbnb) {
+ case 0:
+ and_mask = 0x1f;
+ break;
+ case 1:
+ and_mask = 0xe7;
+ or_mask = 0x80;
+ break;
+ case 2:
+ and_mask = 0xfb;
+ or_mask = 0x50;
+ break;
+ case 3:
+ or_mask = 0x2c;
+ break;
+ }
+
+ env->mmucr &= (and_mask << 24) | 0x00ffffff;
+ env->mmucr |= (or_mask << 24);
+}
+
+static int itlb_replacement(CPUSH4State * env)
+{
+ SuperHCPU *cpu = sh_env_get_cpu(env);
+
+ if ((env->mmucr & 0xe0000000) == 0xe0000000) {
+ return 0;
+ }
+ if ((env->mmucr & 0x98000000) == 0x18000000) {
+ return 1;
+ }
+ if ((env->mmucr & 0x54000000) == 0x04000000) {
+ return 2;
+ }
+ if ((env->mmucr & 0x2c000000) == 0x00000000) {
+ return 3;
+ }
+ cpu_abort(CPU(cpu), "Unhandled itlb_replacement");
+}
+
+/* Find the corresponding entry in the right TLB
+ Return entry, MMU_DTLB_MISS or MMU_DTLB_MULTIPLE
+*/
+static int find_tlb_entry(CPUSH4State * env, target_ulong address,
+ tlb_t * entries, uint8_t nbtlb, int use_asid)
+{
+ int match = MMU_DTLB_MISS;
+ uint32_t start, end;
+ uint8_t asid;
+ int i;
+
+ asid = env->pteh & 0xff;
+
+ for (i = 0; i < nbtlb; i++) {
+ if (!entries[i].v)
+ continue; /* Invalid entry */
+ if (!entries[i].sh && use_asid && entries[i].asid != asid)
+ continue; /* Bad ASID */
+ start = (entries[i].vpn << 10) & ~(entries[i].size - 1);
+ end = start + entries[i].size - 1;
+ if (address >= start && address <= end) { /* Match */
+ if (match != MMU_DTLB_MISS)
+ return MMU_DTLB_MULTIPLE; /* Multiple match */
+ match = i;
+ }
+ }
+ return match;
+}
+
+static void increment_urc(CPUSH4State * env)
+{
+ uint8_t urb, urc;
+
+ /* Increment URC */
+ urb = ((env->mmucr) >> 18) & 0x3f;
+ urc = ((env->mmucr) >> 10) & 0x3f;
+ urc++;
+ if ((urb > 0 && urc > urb) || urc > (UTLB_SIZE - 1))
+ urc = 0;
+ env->mmucr = (env->mmucr & 0xffff03ff) | (urc << 10);
+}
+
+/* Copy and utlb entry into itlb
+ Return entry
+*/
+static int copy_utlb_entry_itlb(CPUSH4State *env, int utlb)
+{
+ int itlb;
+
+ tlb_t * ientry;
+ itlb = itlb_replacement(env);
+ ientry = &env->itlb[itlb];
+ if (ientry->v) {
+ tlb_flush_page(CPU(sh_env_get_cpu(env)), ientry->vpn << 10);
+ }
+ *ientry = env->utlb[utlb];
+ update_itlb_use(env, itlb);
+ return itlb;
+}
+
+/* Find itlb entry
+ Return entry, MMU_ITLB_MISS, MMU_ITLB_MULTIPLE or MMU_DTLB_MULTIPLE
+*/
+static int find_itlb_entry(CPUSH4State * env, target_ulong address,
+ int use_asid)
+{
+ int e;
+
+ e = find_tlb_entry(env, address, env->itlb, ITLB_SIZE, use_asid);
+ if (e == MMU_DTLB_MULTIPLE) {
+ e = MMU_ITLB_MULTIPLE;
+ } else if (e == MMU_DTLB_MISS) {
+ e = MMU_ITLB_MISS;
+ } else if (e >= 0) {
+ update_itlb_use(env, e);
+ }
+ return e;
+}
+
+/* Find utlb entry
+ Return entry, MMU_DTLB_MISS, MMU_DTLB_MULTIPLE */
+static int find_utlb_entry(CPUSH4State * env, target_ulong address, int use_asid)
+{
+ /* per utlb access */
+ increment_urc(env);
+
+ /* Return entry */
+ return find_tlb_entry(env, address, env->utlb, UTLB_SIZE, use_asid);
+}
+
+/* Match address against MMU
+ Return MMU_OK, MMU_DTLB_MISS_READ, MMU_DTLB_MISS_WRITE,
+ MMU_DTLB_INITIAL_WRITE, MMU_DTLB_VIOLATION_READ,
+ MMU_DTLB_VIOLATION_WRITE, MMU_ITLB_MISS,
+ MMU_ITLB_MULTIPLE, MMU_ITLB_VIOLATION,
+ MMU_IADDR_ERROR, MMU_DADDR_ERROR_READ, MMU_DADDR_ERROR_WRITE.
+*/
+static int get_mmu_address(CPUSH4State * env, target_ulong * physical,
+ int *prot, target_ulong address,
+ int rw, int access_type)
+{
+ int use_asid, n;
+ tlb_t *matching = NULL;
+
+ use_asid = !(env->mmucr & MMUCR_SV) || !(env->sr & (1u << SR_MD));
+
+ if (rw == 2) {
+ n = find_itlb_entry(env, address, use_asid);
+ if (n >= 0) {
+ matching = &env->itlb[n];
+ if (!(env->sr & (1u << SR_MD)) && !(matching->pr & 2)) {
+ n = MMU_ITLB_VIOLATION;
+ } else {
+ *prot = PAGE_EXEC;
+ }
+ } else {
+ n = find_utlb_entry(env, address, use_asid);
+ if (n >= 0) {
+ n = copy_utlb_entry_itlb(env, n);
+ matching = &env->itlb[n];
+ if (!(env->sr & (1u << SR_MD)) && !(matching->pr & 2)) {
+ n = MMU_ITLB_VIOLATION;
+ } else {
+ *prot = PAGE_READ | PAGE_EXEC;
+ if ((matching->pr & 1) && matching->d) {
+ *prot |= PAGE_WRITE;
+ }
+ }
+ } else if (n == MMU_DTLB_MULTIPLE) {
+ n = MMU_ITLB_MULTIPLE;
+ } else if (n == MMU_DTLB_MISS) {
+ n = MMU_ITLB_MISS;
+ }
+ }
+ } else {
+ n = find_utlb_entry(env, address, use_asid);
+ if (n >= 0) {
+ matching = &env->utlb[n];
+ if (!(env->sr & (1u << SR_MD)) && !(matching->pr & 2)) {
+ n = (rw == 1) ? MMU_DTLB_VIOLATION_WRITE :
+ MMU_DTLB_VIOLATION_READ;
+ } else if ((rw == 1) && !(matching->pr & 1)) {
+ n = MMU_DTLB_VIOLATION_WRITE;
+ } else if ((rw == 1) && !matching->d) {
+ n = MMU_DTLB_INITIAL_WRITE;
+ } else {
+ *prot = PAGE_READ;
+ if ((matching->pr & 1) && matching->d) {
+ *prot |= PAGE_WRITE;
+ }
+ }
+ } else if (n == MMU_DTLB_MISS) {
+ n = (rw == 1) ? MMU_DTLB_MISS_WRITE :
+ MMU_DTLB_MISS_READ;
+ }
+ }
+ if (n >= 0) {
+ n = MMU_OK;
+ *physical = ((matching->ppn << 10) & ~(matching->size - 1)) |
+ (address & (matching->size - 1));
+ }
+ return n;
+}
+
+static int get_physical_address(CPUSH4State * env, target_ulong * physical,
+ int *prot, target_ulong address,
+ int rw, int access_type)
+{
+ /* P1, P2 and P4 areas do not use translation */
+ if ((address >= 0x80000000 && address < 0xc0000000) ||
+ address >= 0xe0000000) {
+ if (!(env->sr & (1u << SR_MD))
+ && (address < 0xe0000000 || address >= 0xe4000000)) {
+ /* Unauthorized access in user mode (only store queues are available) */
+ fprintf(stderr, "Unauthorized access\n");
+ if (rw == 0)
+ return MMU_DADDR_ERROR_READ;
+ else if (rw == 1)
+ return MMU_DADDR_ERROR_WRITE;
+ else
+ return MMU_IADDR_ERROR;
+ }
+ if (address >= 0x80000000 && address < 0xc0000000) {
+ /* Mask upper 3 bits for P1 and P2 areas */
+ *physical = address & 0x1fffffff;
+ } else {
+ *physical = address;
+ }
+ *prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
+ return MMU_OK;
+ }
+
+ /* If MMU is disabled, return the corresponding physical page */
+ if (!(env->mmucr & MMUCR_AT)) {
+ *physical = address & 0x1FFFFFFF;
+ *prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
+ return MMU_OK;
+ }
+
+ /* We need to resort to the MMU */
+ return get_mmu_address(env, physical, prot, address, rw, access_type);
+}
+
+int superh_cpu_handle_mmu_fault(CPUState *cs, vaddr address, int rw,
+ int mmu_idx)
+{
+ SuperHCPU *cpu = SUPERH_CPU(cs);
+ CPUSH4State *env = &cpu->env;
+ target_ulong physical;
+ int prot, ret, access_type;
+
+ access_type = ACCESS_INT;
+ ret =
+ get_physical_address(env, &physical, &prot, address, rw,
+ access_type);
+
+ if (ret != MMU_OK) {
+ env->tea = address;
+ if (ret != MMU_DTLB_MULTIPLE && ret != MMU_ITLB_MULTIPLE) {
+ env->pteh = (env->pteh & PTEH_ASID_MASK) |
+ (address & PTEH_VPN_MASK);
+ }
+ switch (ret) {
+ case MMU_ITLB_MISS:
+ case MMU_DTLB_MISS_READ:
+ cs->exception_index = 0x040;
+ break;
+ case MMU_DTLB_MULTIPLE:
+ case MMU_ITLB_MULTIPLE:
+ cs->exception_index = 0x140;
+ break;
+ case MMU_ITLB_VIOLATION:
+ cs->exception_index = 0x0a0;
+ break;
+ case MMU_DTLB_MISS_WRITE:
+ cs->exception_index = 0x060;
+ break;
+ case MMU_DTLB_INITIAL_WRITE:
+ cs->exception_index = 0x080;
+ break;
+ case MMU_DTLB_VIOLATION_READ:
+ cs->exception_index = 0x0a0;
+ break;
+ case MMU_DTLB_VIOLATION_WRITE:
+ cs->exception_index = 0x0c0;
+ break;
+ case MMU_IADDR_ERROR:
+ case MMU_DADDR_ERROR_READ:
+ cs->exception_index = 0x0e0;
+ break;
+ case MMU_DADDR_ERROR_WRITE:
+ cs->exception_index = 0x100;
+ break;
+ default:
+ cpu_abort(cs, "Unhandled MMU fault");
+ }
+ return 1;
+ }
+
+ address &= TARGET_PAGE_MASK;
+ physical &= TARGET_PAGE_MASK;
+
+ tlb_set_page(cs, address, physical, prot, mmu_idx, TARGET_PAGE_SIZE);
+ return 0;
+}
+
+hwaddr superh_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
+{
+ SuperHCPU *cpu = SUPERH_CPU(cs);
+ target_ulong physical;
+ int prot;
+
+ get_physical_address(&cpu->env, &physical, &prot, addr, 0, 0);
+ return physical;
+}
+
+void cpu_load_tlb(CPUSH4State * env)
+{
+ SuperHCPU *cpu = sh_env_get_cpu(env);
+ int n = cpu_mmucr_urc(env->mmucr);
+ tlb_t * entry = &env->utlb[n];
+
+ if (entry->v) {
+ /* Overwriting valid entry in utlb. */
+ target_ulong address = entry->vpn << 10;
+ tlb_flush_page(CPU(cpu), address);
+ }
+
+ /* Take values into cpu status from registers. */
+ entry->asid = (uint8_t)cpu_pteh_asid(env->pteh);
+ entry->vpn = cpu_pteh_vpn(env->pteh);
+ entry->v = (uint8_t)cpu_ptel_v(env->ptel);
+ entry->ppn = cpu_ptel_ppn(env->ptel);
+ entry->sz = (uint8_t)cpu_ptel_sz(env->ptel);
+ switch (entry->sz) {
+ case 0: /* 00 */
+ entry->size = 1024; /* 1K */
+ break;
+ case 1: /* 01 */
+ entry->size = 1024 * 4; /* 4K */
+ break;
+ case 2: /* 10 */
+ entry->size = 1024 * 64; /* 64K */
+ break;
+ case 3: /* 11 */
+ entry->size = 1024 * 1024; /* 1M */
+ break;
+ default:
+ cpu_abort(CPU(cpu), "Unhandled load_tlb");
+ break;
+ }
+ entry->sh = (uint8_t)cpu_ptel_sh(env->ptel);
+ entry->c = (uint8_t)cpu_ptel_c(env->ptel);
+ entry->pr = (uint8_t)cpu_ptel_pr(env->ptel);
+ entry->d = (uint8_t)cpu_ptel_d(env->ptel);
+ entry->wt = (uint8_t)cpu_ptel_wt(env->ptel);
+ entry->sa = (uint8_t)cpu_ptea_sa(env->ptea);
+ entry->tc = (uint8_t)cpu_ptea_tc(env->ptea);
+}
+
+ void cpu_sh4_invalidate_tlb(CPUSH4State *s)
+{
+ int i;
+
+ /* UTLB */
+ for (i = 0; i < UTLB_SIZE; i++) {
+ tlb_t * entry = &s->utlb[i];
+ entry->v = 0;
+ }
+ /* ITLB */
+ for (i = 0; i < ITLB_SIZE; i++) {
+ tlb_t * entry = &s->itlb[i];
+ entry->v = 0;
+ }
+
+ tlb_flush(CPU(sh_env_get_cpu(s)), 1);
+}
+
+uint32_t cpu_sh4_read_mmaped_itlb_addr(CPUSH4State *s,
+ hwaddr addr)
+{
+ int index = (addr & 0x00000300) >> 8;
+ tlb_t * entry = &s->itlb[index];
+
+ return (entry->vpn << 10) |
+ (entry->v << 8) |
+ (entry->asid);
+}
+
+void cpu_sh4_write_mmaped_itlb_addr(CPUSH4State *s, hwaddr addr,
+ uint32_t mem_value)
+{
+ uint32_t vpn = (mem_value & 0xfffffc00) >> 10;
+ uint8_t v = (uint8_t)((mem_value & 0x00000100) >> 8);
+ uint8_t asid = (uint8_t)(mem_value & 0x000000ff);
+
+ int index = (addr & 0x00000300) >> 8;
+ tlb_t * entry = &s->itlb[index];
+ if (entry->v) {
+ /* Overwriting valid entry in itlb. */
+ target_ulong address = entry->vpn << 10;
+ tlb_flush_page(CPU(sh_env_get_cpu(s)), address);
+ }
+ entry->asid = asid;
+ entry->vpn = vpn;
+ entry->v = v;
+}
+
+uint32_t cpu_sh4_read_mmaped_itlb_data(CPUSH4State *s,
+ hwaddr addr)
+{
+ int array = (addr & 0x00800000) >> 23;
+ int index = (addr & 0x00000300) >> 8;
+ tlb_t * entry = &s->itlb[index];
+
+ if (array == 0) {
+ /* ITLB Data Array 1 */
+ return (entry->ppn << 10) |
+ (entry->v << 8) |
+ (entry->pr << 5) |
+ ((entry->sz & 1) << 6) |
+ ((entry->sz & 2) << 4) |
+ (entry->c << 3) |
+ (entry->sh << 1);
+ } else {
+ /* ITLB Data Array 2 */
+ return (entry->tc << 1) |
+ (entry->sa);
+ }
+}
+
+void cpu_sh4_write_mmaped_itlb_data(CPUSH4State *s, hwaddr addr,
+ uint32_t mem_value)
+{
+ int array = (addr & 0x00800000) >> 23;
+ int index = (addr & 0x00000300) >> 8;
+ tlb_t * entry = &s->itlb[index];
+
+ if (array == 0) {
+ /* ITLB Data Array 1 */
+ if (entry->v) {
+ /* Overwriting valid entry in utlb. */
+ target_ulong address = entry->vpn << 10;
+ tlb_flush_page(CPU(sh_env_get_cpu(s)), address);
+ }
+ entry->ppn = (mem_value & 0x1ffffc00) >> 10;
+ entry->v = (mem_value & 0x00000100) >> 8;
+ entry->sz = (mem_value & 0x00000080) >> 6 |
+ (mem_value & 0x00000010) >> 4;
+ entry->pr = (mem_value & 0x00000040) >> 5;
+ entry->c = (mem_value & 0x00000008) >> 3;
+ entry->sh = (mem_value & 0x00000002) >> 1;
+ } else {
+ /* ITLB Data Array 2 */
+ entry->tc = (mem_value & 0x00000008) >> 3;
+ entry->sa = (mem_value & 0x00000007);
+ }
+}
+
+uint32_t cpu_sh4_read_mmaped_utlb_addr(CPUSH4State *s,
+ hwaddr addr)
+{
+ int index = (addr & 0x00003f00) >> 8;
+ tlb_t * entry = &s->utlb[index];
+
+ increment_urc(s); /* per utlb access */
+
+ return (entry->vpn << 10) |
+ (entry->v << 8) |
+ (entry->asid);
+}
+
+void cpu_sh4_write_mmaped_utlb_addr(CPUSH4State *s, hwaddr addr,
+ uint32_t mem_value)
+{
+ int associate = addr & 0x0000080;
+ uint32_t vpn = (mem_value & 0xfffffc00) >> 10;
+ uint8_t d = (uint8_t)((mem_value & 0x00000200) >> 9);
+ uint8_t v = (uint8_t)((mem_value & 0x00000100) >> 8);
+ uint8_t asid = (uint8_t)(mem_value & 0x000000ff);
+ int use_asid = !(s->mmucr & MMUCR_SV) || !(s->sr & (1u << SR_MD));
+
+ if (associate) {
+ int i;
+ tlb_t * utlb_match_entry = NULL;
+ int needs_tlb_flush = 0;
+
+ /* search UTLB */
+ for (i = 0; i < UTLB_SIZE; i++) {
+ tlb_t * entry = &s->utlb[i];
+ if (!entry->v)
+ continue;
+
+ if (entry->vpn == vpn
+ && (!use_asid || entry->asid == asid || entry->sh)) {
+ if (utlb_match_entry) {
+ CPUState *cs = CPU(sh_env_get_cpu(s));
+
+ /* Multiple TLB Exception */
+ cs->exception_index = 0x140;
+ s->tea = addr;
+ break;
+ }
+ if (entry->v && !v)
+ needs_tlb_flush = 1;
+ entry->v = v;
+ entry->d = d;
+ utlb_match_entry = entry;
+ }
+ increment_urc(s); /* per utlb access */
+ }
+
+ /* search ITLB */
+ for (i = 0; i < ITLB_SIZE; i++) {
+ tlb_t * entry = &s->itlb[i];
+ if (entry->vpn == vpn
+ && (!use_asid || entry->asid == asid || entry->sh)) {
+ if (entry->v && !v)
+ needs_tlb_flush = 1;
+ if (utlb_match_entry)
+ *entry = *utlb_match_entry;
+ else
+ entry->v = v;
+ break;
+ }
+ }
+
+ if (needs_tlb_flush) {
+ tlb_flush_page(CPU(sh_env_get_cpu(s)), vpn << 10);
+ }
+
+ } else {
+ int index = (addr & 0x00003f00) >> 8;
+ tlb_t * entry = &s->utlb[index];
+ if (entry->v) {
+ CPUState *cs = CPU(sh_env_get_cpu(s));
+
+ /* Overwriting valid entry in utlb. */
+ target_ulong address = entry->vpn << 10;
+ tlb_flush_page(cs, address);
+ }
+ entry->asid = asid;
+ entry->vpn = vpn;
+ entry->d = d;
+ entry->v = v;
+ increment_urc(s);
+ }
+}
+
+uint32_t cpu_sh4_read_mmaped_utlb_data(CPUSH4State *s,
+ hwaddr addr)
+{
+ int array = (addr & 0x00800000) >> 23;
+ int index = (addr & 0x00003f00) >> 8;
+ tlb_t * entry = &s->utlb[index];
+
+ increment_urc(s); /* per utlb access */
+
+ if (array == 0) {
+ /* ITLB Data Array 1 */
+ return (entry->ppn << 10) |
+ (entry->v << 8) |
+ (entry->pr << 5) |
+ ((entry->sz & 1) << 6) |
+ ((entry->sz & 2) << 4) |
+ (entry->c << 3) |
+ (entry->d << 2) |
+ (entry->sh << 1) |
+ (entry->wt);
+ } else {
+ /* ITLB Data Array 2 */
+ return (entry->tc << 1) |
+ (entry->sa);
+ }
+}
+
+void cpu_sh4_write_mmaped_utlb_data(CPUSH4State *s, hwaddr addr,
+ uint32_t mem_value)
+{
+ int array = (addr & 0x00800000) >> 23;
+ int index = (addr & 0x00003f00) >> 8;
+ tlb_t * entry = &s->utlb[index];
+
+ increment_urc(s); /* per utlb access */
+
+ if (array == 0) {
+ /* UTLB Data Array 1 */
+ if (entry->v) {
+ /* Overwriting valid entry in utlb. */
+ target_ulong address = entry->vpn << 10;
+ tlb_flush_page(CPU(sh_env_get_cpu(s)), address);
+ }
+ entry->ppn = (mem_value & 0x1ffffc00) >> 10;
+ entry->v = (mem_value & 0x00000100) >> 8;
+ entry->sz = (mem_value & 0x00000080) >> 6 |
+ (mem_value & 0x00000010) >> 4;
+ entry->pr = (mem_value & 0x00000060) >> 5;
+ entry->c = (mem_value & 0x00000008) >> 3;
+ entry->d = (mem_value & 0x00000004) >> 2;
+ entry->sh = (mem_value & 0x00000002) >> 1;
+ entry->wt = (mem_value & 0x00000001);
+ } else {
+ /* UTLB Data Array 2 */
+ entry->tc = (mem_value & 0x00000008) >> 3;
+ entry->sa = (mem_value & 0x00000007);
+ }
+}
+
+int cpu_sh4_is_cached(CPUSH4State * env, target_ulong addr)
+{
+ int n;
+ int use_asid = !(env->mmucr & MMUCR_SV) || !(env->sr & (1u << SR_MD));
+
+ /* check area */
+ if (env->sr & (1u << SR_MD)) {
+ /* For privileged mode, P2 and P4 area is not cacheable. */
+ if ((0xA0000000 <= addr && addr < 0xC0000000) || 0xE0000000 <= addr)
+ return 0;
+ } else {
+ /* For user mode, only U0 area is cacheable. */
+ if (0x80000000 <= addr)
+ return 0;
+ }
+
+ /*
+ * TODO : Evaluate CCR and check if the cache is on or off.
+ * Now CCR is not in CPUSH4State, but in SH7750State.
+ * When you move the ccr into CPUSH4State, the code will be
+ * as follows.
+ */
+#if 0
+ /* check if operand cache is enabled or not. */
+ if (!(env->ccr & 1))
+ return 0;
+#endif
+
+ /* if MMU is off, no check for TLB. */
+ if (env->mmucr & MMUCR_AT)
+ return 1;
+
+ /* check TLB */
+ n = find_tlb_entry(env, addr, env->itlb, ITLB_SIZE, use_asid);
+ if (n >= 0)
+ return env->itlb[n].c;
+
+ n = find_tlb_entry(env, addr, env->utlb, UTLB_SIZE, use_asid);
+ if (n >= 0)
+ return env->utlb[n].c;
+
+ return 0;
+}
+
+#endif
+
+bool superh_cpu_exec_interrupt(CPUState *cs, int interrupt_request)
+{
+ if (interrupt_request & CPU_INTERRUPT_HARD) {
+ superh_cpu_do_interrupt(cs);
+ return true;
+ }
+ return false;
+}
diff --git a/target/sh4/helper.h b/target/sh4/helper.h
new file mode 100644
index 0000000000..dce859caea
--- /dev/null
+++ b/target/sh4/helper.h
@@ -0,0 +1,45 @@
+DEF_HELPER_1(ldtlb, void, env)
+DEF_HELPER_1(raise_illegal_instruction, noreturn, env)
+DEF_HELPER_1(raise_slot_illegal_instruction, noreturn, env)
+DEF_HELPER_1(raise_fpu_disable, noreturn, env)
+DEF_HELPER_1(raise_slot_fpu_disable, noreturn, env)
+DEF_HELPER_1(debug, noreturn, env)
+DEF_HELPER_1(sleep, noreturn, env)
+DEF_HELPER_2(trapa, noreturn, env, i32)
+
+DEF_HELPER_3(movcal, void, env, i32, i32)
+DEF_HELPER_1(discard_movcal_backup, void, env)
+DEF_HELPER_2(ocbi, void, env, i32)
+
+DEF_HELPER_3(macl, void, env, i32, i32)
+DEF_HELPER_3(macw, void, env, i32, i32)
+
+DEF_HELPER_2(ld_fpscr, void, env, i32)
+
+DEF_HELPER_FLAGS_1(fabs_FT, TCG_CALL_NO_RWG_SE, f32, f32)
+DEF_HELPER_FLAGS_1(fabs_DT, TCG_CALL_NO_RWG_SE, f64, f64)
+DEF_HELPER_FLAGS_3(fadd_FT, TCG_CALL_NO_WG, f32, env, f32, f32)
+DEF_HELPER_FLAGS_3(fadd_DT, TCG_CALL_NO_WG, f64, env, f64, f64)
+DEF_HELPER_FLAGS_2(fcnvsd_FT_DT, TCG_CALL_NO_WG, f64, env, f32)
+DEF_HELPER_FLAGS_2(fcnvds_DT_FT, TCG_CALL_NO_WG, f32, env, f64)
+
+DEF_HELPER_3(fcmp_eq_FT, void, env, f32, f32)
+DEF_HELPER_3(fcmp_eq_DT, void, env, f64, f64)
+DEF_HELPER_3(fcmp_gt_FT, void, env, f32, f32)
+DEF_HELPER_3(fcmp_gt_DT, void, env, f64, f64)
+DEF_HELPER_FLAGS_3(fdiv_FT, TCG_CALL_NO_WG, f32, env, f32, f32)
+DEF_HELPER_FLAGS_3(fdiv_DT, TCG_CALL_NO_WG, f64, env, f64, f64)
+DEF_HELPER_FLAGS_2(float_FT, TCG_CALL_NO_WG, f32, env, i32)
+DEF_HELPER_FLAGS_2(float_DT, TCG_CALL_NO_WG, f64, env, i32)
+DEF_HELPER_FLAGS_4(fmac_FT, TCG_CALL_NO_WG, f32, env, f32, f32, f32)
+DEF_HELPER_FLAGS_3(fmul_FT, TCG_CALL_NO_WG, f32, env, f32, f32)
+DEF_HELPER_FLAGS_3(fmul_DT, TCG_CALL_NO_WG, f64, env, f64, f64)
+DEF_HELPER_FLAGS_1(fneg_T, TCG_CALL_NO_RWG_SE, f32, f32)
+DEF_HELPER_FLAGS_3(fsub_FT, TCG_CALL_NO_WG, f32, env, f32, f32)
+DEF_HELPER_FLAGS_3(fsub_DT, TCG_CALL_NO_WG, f64, env, f64, f64)
+DEF_HELPER_FLAGS_2(fsqrt_FT, TCG_CALL_NO_WG, f32, env, f32)
+DEF_HELPER_FLAGS_2(fsqrt_DT, TCG_CALL_NO_WG, f64, env, f64)
+DEF_HELPER_FLAGS_2(ftrc_FT, TCG_CALL_NO_WG, i32, env, f32)
+DEF_HELPER_FLAGS_2(ftrc_DT, TCG_CALL_NO_WG, i32, env, f64)
+DEF_HELPER_3(fipr, void, env, i32, i32)
+DEF_HELPER_2(ftrv, void, env, i32)
diff --git a/target/sh4/monitor.c b/target/sh4/monitor.c
new file mode 100644
index 0000000000..426e5d4914
--- /dev/null
+++ b/target/sh4/monitor.c
@@ -0,0 +1,53 @@
+/*
+ * QEMU monitor
+ *
+ * Copyright (c) 2003-2004 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "qemu/osdep.h"
+#include "cpu.h"
+#include "monitor/monitor.h"
+#include "monitor/hmp-target.h"
+#include "hmp.h"
+
+static void print_tlb(Monitor *mon, int idx, tlb_t *tlb)
+{
+ monitor_printf(mon, " tlb%i:\t"
+ "asid=%hhu vpn=%x\tppn=%x\tsz=%hhu size=%u\t"
+ "v=%hhu shared=%hhu cached=%hhu prot=%hhu "
+ "dirty=%hhu writethrough=%hhu\n",
+ idx,
+ tlb->asid, tlb->vpn, tlb->ppn, tlb->sz, tlb->size,
+ tlb->v, tlb->sh, tlb->c, tlb->pr,
+ tlb->d, tlb->wt);
+}
+
+void hmp_info_tlb(Monitor *mon, const QDict *qdict)
+{
+ CPUArchState *env = mon_get_cpu_env();
+ int i;
+
+ monitor_printf (mon, "ITLB:\n");
+ for (i = 0 ; i < ITLB_SIZE ; i++)
+ print_tlb (mon, i, &env->itlb[i]);
+ monitor_printf (mon, "UTLB:\n");
+ for (i = 0 ; i < UTLB_SIZE ; i++)
+ print_tlb (mon, i, &env->utlb[i]);
+}
diff --git a/target/sh4/op_helper.c b/target/sh4/op_helper.c
new file mode 100644
index 0000000000..684d3f3758
--- /dev/null
+++ b/target/sh4/op_helper.c
@@ -0,0 +1,498 @@
+/*
+ * SH4 emulation
+ *
+ * Copyright (c) 2005 Samuel Tardieu
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+#include "qemu/osdep.h"
+#include "cpu.h"
+#include "exec/helper-proto.h"
+#include "exec/exec-all.h"
+#include "exec/cpu_ldst.h"
+
+#ifndef CONFIG_USER_ONLY
+
+void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
+ int mmu_idx, uintptr_t retaddr)
+{
+ int ret;
+
+ ret = superh_cpu_handle_mmu_fault(cs, addr, access_type, mmu_idx);
+ if (ret) {
+ /* now we have a real cpu fault */
+ if (retaddr) {
+ cpu_restore_state(cs, retaddr);
+ }
+ cpu_loop_exit(cs);
+ }
+}
+
+#endif
+
+void helper_ldtlb(CPUSH4State *env)
+{
+#ifdef CONFIG_USER_ONLY
+ SuperHCPU *cpu = sh_env_get_cpu(env);
+
+ /* XXXXX */
+ cpu_abort(CPU(cpu), "Unhandled ldtlb");
+#else
+ cpu_load_tlb(env);
+#endif
+}
+
+static inline void QEMU_NORETURN raise_exception(CPUSH4State *env, int index,
+ uintptr_t retaddr)
+{
+ CPUState *cs = CPU(sh_env_get_cpu(env));
+
+ cs->exception_index = index;
+ if (retaddr) {
+ cpu_restore_state(cs, retaddr);
+ }
+ cpu_loop_exit(cs);
+}
+
+void helper_raise_illegal_instruction(CPUSH4State *env)
+{
+ raise_exception(env, 0x180, 0);
+}
+
+void helper_raise_slot_illegal_instruction(CPUSH4State *env)
+{
+ raise_exception(env, 0x1a0, 0);
+}
+
+void helper_raise_fpu_disable(CPUSH4State *env)
+{
+ raise_exception(env, 0x800, 0);
+}
+
+void helper_raise_slot_fpu_disable(CPUSH4State *env)
+{
+ raise_exception(env, 0x820, 0);
+}
+
+void helper_debug(CPUSH4State *env)
+{
+ raise_exception(env, EXCP_DEBUG, 0);
+}
+
+void helper_sleep(CPUSH4State *env)
+{
+ CPUState *cs = CPU(sh_env_get_cpu(env));
+
+ cs->halted = 1;
+ env->in_sleep = 1;
+ raise_exception(env, EXCP_HLT, 0);
+}
+
+void helper_trapa(CPUSH4State *env, uint32_t tra)
+{
+ env->tra = tra << 2;
+ raise_exception(env, 0x160, 0);
+}
+
+void helper_movcal(CPUSH4State *env, uint32_t address, uint32_t value)
+{
+ if (cpu_sh4_is_cached (env, address))
+ {
+ memory_content *r = g_new(memory_content, 1);
+
+ r->address = address;
+ r->value = value;
+ r->next = NULL;
+
+ *(env->movcal_backup_tail) = r;
+ env->movcal_backup_tail = &(r->next);
+ }
+}
+
+void helper_discard_movcal_backup(CPUSH4State *env)
+{
+ memory_content *current = env->movcal_backup;
+
+ while(current)
+ {
+ memory_content *next = current->next;
+ g_free(current);
+ env->movcal_backup = current = next;
+ if (current == NULL)
+ env->movcal_backup_tail = &(env->movcal_backup);
+ }
+}
+
+void helper_ocbi(CPUSH4State *env, uint32_t address)
+{
+ memory_content **current = &(env->movcal_backup);
+ while (*current)
+ {
+ uint32_t a = (*current)->address;
+ if ((a & ~0x1F) == (address & ~0x1F))
+ {
+ memory_content *next = (*current)->next;
+ cpu_stl_data(env, a, (*current)->value);
+
+ if (next == NULL)
+ {
+ env->movcal_backup_tail = current;
+ }
+
+ g_free(*current);
+ *current = next;
+ break;
+ }
+ }
+}
+
+void helper_macl(CPUSH4State *env, uint32_t arg0, uint32_t arg1)
+{
+ int64_t res;
+
+ res = ((uint64_t) env->mach << 32) | env->macl;
+ res += (int64_t) (int32_t) arg0 *(int64_t) (int32_t) arg1;
+ env->mach = (res >> 32) & 0xffffffff;
+ env->macl = res & 0xffffffff;
+ if (env->sr & (1u << SR_S)) {
+ if (res < 0)
+ env->mach |= 0xffff0000;
+ else
+ env->mach &= 0x00007fff;
+ }
+}
+
+void helper_macw(CPUSH4State *env, uint32_t arg0, uint32_t arg1)
+{
+ int64_t res;
+
+ res = ((uint64_t) env->mach << 32) | env->macl;
+ res += (int64_t) (int16_t) arg0 *(int64_t) (int16_t) arg1;
+ env->mach = (res >> 32) & 0xffffffff;
+ env->macl = res & 0xffffffff;
+ if (env->sr & (1u << SR_S)) {
+ if (res < -0x80000000) {
+ env->mach = 1;
+ env->macl = 0x80000000;
+ } else if (res > 0x000000007fffffff) {
+ env->mach = 1;
+ env->macl = 0x7fffffff;
+ }
+ }
+}
+
+void helper_ld_fpscr(CPUSH4State *env, uint32_t val)
+{
+ env->fpscr = val & FPSCR_MASK;
+ if ((val & FPSCR_RM_MASK) == FPSCR_RM_ZERO) {
+ set_float_rounding_mode(float_round_to_zero, &env->fp_status);
+ } else {
+ set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
+ }
+ set_flush_to_zero((val & FPSCR_DN) != 0, &env->fp_status);
+}
+
+static void update_fpscr(CPUSH4State *env, uintptr_t retaddr)
+{
+ int xcpt, cause, enable;
+
+ xcpt = get_float_exception_flags(&env->fp_status);
+
+ /* Clear the flag entries */
+ env->fpscr &= ~FPSCR_FLAG_MASK;
+
+ if (unlikely(xcpt)) {
+ if (xcpt & float_flag_invalid) {
+ env->fpscr |= FPSCR_FLAG_V;
+ }
+ if (xcpt & float_flag_divbyzero) {
+ env->fpscr |= FPSCR_FLAG_Z;
+ }
+ if (xcpt & float_flag_overflow) {
+ env->fpscr |= FPSCR_FLAG_O;
+ }
+ if (xcpt & float_flag_underflow) {
+ env->fpscr |= FPSCR_FLAG_U;
+ }
+ if (xcpt & float_flag_inexact) {
+ env->fpscr |= FPSCR_FLAG_I;
+ }
+
+ /* Accumulate in cause entries */
+ env->fpscr |= (env->fpscr & FPSCR_FLAG_MASK)
+ << (FPSCR_CAUSE_SHIFT - FPSCR_FLAG_SHIFT);
+
+ /* Generate an exception if enabled */
+ cause = (env->fpscr & FPSCR_CAUSE_MASK) >> FPSCR_CAUSE_SHIFT;
+ enable = (env->fpscr & FPSCR_ENABLE_MASK) >> FPSCR_ENABLE_SHIFT;
+ if (cause & enable) {
+ raise_exception(env, 0x120, retaddr);
+ }
+ }
+}
+
+float32 helper_fabs_FT(float32 t0)
+{
+ return float32_abs(t0);
+}
+
+float64 helper_fabs_DT(float64 t0)
+{
+ return float64_abs(t0);
+}
+
+float32 helper_fadd_FT(CPUSH4State *env, float32 t0, float32 t1)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ t0 = float32_add(t0, t1, &env->fp_status);
+ update_fpscr(env, GETPC());
+ return t0;
+}
+
+float64 helper_fadd_DT(CPUSH4State *env, float64 t0, float64 t1)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ t0 = float64_add(t0, t1, &env->fp_status);
+ update_fpscr(env, GETPC());
+ return t0;
+}
+
+void helper_fcmp_eq_FT(CPUSH4State *env, float32 t0, float32 t1)
+{
+ int relation;
+
+ set_float_exception_flags(0, &env->fp_status);
+ relation = float32_compare(t0, t1, &env->fp_status);
+ if (unlikely(relation == float_relation_unordered)) {
+ update_fpscr(env, GETPC());
+ } else {
+ env->sr_t = (relation == float_relation_equal);
+ }
+}
+
+void helper_fcmp_eq_DT(CPUSH4State *env, float64 t0, float64 t1)
+{
+ int relation;
+
+ set_float_exception_flags(0, &env->fp_status);
+ relation = float64_compare(t0, t1, &env->fp_status);
+ if (unlikely(relation == float_relation_unordered)) {
+ update_fpscr(env, GETPC());
+ } else {
+ env->sr_t = (relation == float_relation_equal);
+ }
+}
+
+void helper_fcmp_gt_FT(CPUSH4State *env, float32 t0, float32 t1)
+{
+ int relation;
+
+ set_float_exception_flags(0, &env->fp_status);
+ relation = float32_compare(t0, t1, &env->fp_status);
+ if (unlikely(relation == float_relation_unordered)) {
+ update_fpscr(env, GETPC());
+ } else {
+ env->sr_t = (relation == float_relation_greater);
+ }
+}
+
+void helper_fcmp_gt_DT(CPUSH4State *env, float64 t0, float64 t1)
+{
+ int relation;
+
+ set_float_exception_flags(0, &env->fp_status);
+ relation = float64_compare(t0, t1, &env->fp_status);
+ if (unlikely(relation == float_relation_unordered)) {
+ update_fpscr(env, GETPC());
+ } else {
+ env->sr_t = (relation == float_relation_greater);
+ }
+}
+
+float64 helper_fcnvsd_FT_DT(CPUSH4State *env, float32 t0)
+{
+ float64 ret;
+ set_float_exception_flags(0, &env->fp_status);
+ ret = float32_to_float64(t0, &env->fp_status);
+ update_fpscr(env, GETPC());
+ return ret;
+}
+
+float32 helper_fcnvds_DT_FT(CPUSH4State *env, float64 t0)
+{
+ float32 ret;
+ set_float_exception_flags(0, &env->fp_status);
+ ret = float64_to_float32(t0, &env->fp_status);
+ update_fpscr(env, GETPC());
+ return ret;
+}
+
+float32 helper_fdiv_FT(CPUSH4State *env, float32 t0, float32 t1)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ t0 = float32_div(t0, t1, &env->fp_status);
+ update_fpscr(env, GETPC());
+ return t0;
+}
+
+float64 helper_fdiv_DT(CPUSH4State *env, float64 t0, float64 t1)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ t0 = float64_div(t0, t1, &env->fp_status);
+ update_fpscr(env, GETPC());
+ return t0;
+}
+
+float32 helper_float_FT(CPUSH4State *env, uint32_t t0)
+{
+ float32 ret;
+ set_float_exception_flags(0, &env->fp_status);
+ ret = int32_to_float32(t0, &env->fp_status);
+ update_fpscr(env, GETPC());
+ return ret;
+}
+
+float64 helper_float_DT(CPUSH4State *env, uint32_t t0)
+{
+ float64 ret;
+ set_float_exception_flags(0, &env->fp_status);
+ ret = int32_to_float64(t0, &env->fp_status);
+ update_fpscr(env, GETPC());
+ return ret;
+}
+
+float32 helper_fmac_FT(CPUSH4State *env, float32 t0, float32 t1, float32 t2)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ t0 = float32_muladd(t0, t1, t2, 0, &env->fp_status);
+ update_fpscr(env, GETPC());
+ return t0;
+}
+
+float32 helper_fmul_FT(CPUSH4State *env, float32 t0, float32 t1)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ t0 = float32_mul(t0, t1, &env->fp_status);
+ update_fpscr(env, GETPC());
+ return t0;
+}
+
+float64 helper_fmul_DT(CPUSH4State *env, float64 t0, float64 t1)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ t0 = float64_mul(t0, t1, &env->fp_status);
+ update_fpscr(env, GETPC());
+ return t0;
+}
+
+float32 helper_fneg_T(float32 t0)
+{
+ return float32_chs(t0);
+}
+
+float32 helper_fsqrt_FT(CPUSH4State *env, float32 t0)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ t0 = float32_sqrt(t0, &env->fp_status);
+ update_fpscr(env, GETPC());
+ return t0;
+}
+
+float64 helper_fsqrt_DT(CPUSH4State *env, float64 t0)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ t0 = float64_sqrt(t0, &env->fp_status);
+ update_fpscr(env, GETPC());
+ return t0;
+}
+
+float32 helper_fsub_FT(CPUSH4State *env, float32 t0, float32 t1)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ t0 = float32_sub(t0, t1, &env->fp_status);
+ update_fpscr(env, GETPC());
+ return t0;
+}
+
+float64 helper_fsub_DT(CPUSH4State *env, float64 t0, float64 t1)
+{
+ set_float_exception_flags(0, &env->fp_status);
+ t0 = float64_sub(t0, t1, &env->fp_status);
+ update_fpscr(env, GETPC());
+ return t0;
+}
+
+uint32_t helper_ftrc_FT(CPUSH4State *env, float32 t0)
+{
+ uint32_t ret;
+ set_float_exception_flags(0, &env->fp_status);
+ ret = float32_to_int32_round_to_zero(t0, &env->fp_status);
+ update_fpscr(env, GETPC());
+ return ret;
+}
+
+uint32_t helper_ftrc_DT(CPUSH4State *env, float64 t0)
+{
+ uint32_t ret;
+ set_float_exception_flags(0, &env->fp_status);
+ ret = float64_to_int32_round_to_zero(t0, &env->fp_status);
+ update_fpscr(env, GETPC());
+ return ret;
+}
+
+void helper_fipr(CPUSH4State *env, uint32_t m, uint32_t n)
+{
+ int bank, i;
+ float32 r, p;
+
+ bank = (env->sr & FPSCR_FR) ? 16 : 0;
+ r = float32_zero;
+ set_float_exception_flags(0, &env->fp_status);
+
+ for (i = 0 ; i < 4 ; i++) {
+ p = float32_mul(env->fregs[bank + m + i],
+ env->fregs[bank + n + i],
+ &env->fp_status);
+ r = float32_add(r, p, &env->fp_status);
+ }
+ update_fpscr(env, GETPC());
+
+ env->fregs[bank + n + 3] = r;
+}
+
+void helper_ftrv(CPUSH4State *env, uint32_t n)
+{
+ int bank_matrix, bank_vector;
+ int i, j;
+ float32 r[4];
+ float32 p;
+
+ bank_matrix = (env->sr & FPSCR_FR) ? 0 : 16;
+ bank_vector = (env->sr & FPSCR_FR) ? 16 : 0;
+ set_float_exception_flags(0, &env->fp_status);
+ for (i = 0 ; i < 4 ; i++) {
+ r[i] = float32_zero;
+ for (j = 0 ; j < 4 ; j++) {
+ p = float32_mul(env->fregs[bank_matrix + 4 * j + i],
+ env->fregs[bank_vector + j],
+ &env->fp_status);
+ r[i] = float32_add(r[i], p, &env->fp_status);
+ }
+ }
+ update_fpscr(env, GETPC());
+
+ for (i = 0 ; i < 4 ; i++) {
+ env->fregs[bank_vector + i] = r[i];
+ }
+}
diff --git a/target/sh4/translate.c b/target/sh4/translate.c
new file mode 100644
index 0000000000..c89a14733f
--- /dev/null
+++ b/target/sh4/translate.c
@@ -0,0 +1,1944 @@
+/*
+ * SH4 translation
+ *
+ * Copyright (c) 2005 Samuel Tardieu
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define DEBUG_DISAS
+
+#include "qemu/osdep.h"
+#include "cpu.h"
+#include "disas/disas.h"
+#include "exec/exec-all.h"
+#include "tcg-op.h"
+#include "exec/cpu_ldst.h"
+
+#include "exec/helper-proto.h"
+#include "exec/helper-gen.h"
+
+#include "trace-tcg.h"
+#include "exec/log.h"
+
+
+typedef struct DisasContext {
+ struct TranslationBlock *tb;
+ target_ulong pc;
+ uint16_t opcode;
+ uint32_t flags;
+ int bstate;
+ int memidx;
+ uint32_t delayed_pc;
+ int singlestep_enabled;
+ uint32_t features;
+ int has_movcal;
+} DisasContext;
+
+#if defined(CONFIG_USER_ONLY)
+#define IS_USER(ctx) 1
+#else
+#define IS_USER(ctx) (!(ctx->flags & (1u << SR_MD)))
+#endif
+
+enum {
+ BS_NONE = 0, /* We go out of the TB without reaching a branch or an
+ * exception condition
+ */
+ BS_STOP = 1, /* We want to stop translation for any reason */
+ BS_BRANCH = 2, /* We reached a branch condition */
+ BS_EXCP = 3, /* We reached an exception condition */
+};
+
+/* global register indexes */
+static TCGv_env cpu_env;
+static TCGv cpu_gregs[24];
+static TCGv cpu_sr, cpu_sr_m, cpu_sr_q, cpu_sr_t;
+static TCGv cpu_pc, cpu_ssr, cpu_spc, cpu_gbr;
+static TCGv cpu_vbr, cpu_sgr, cpu_dbr, cpu_mach, cpu_macl;
+static TCGv cpu_pr, cpu_fpscr, cpu_fpul, cpu_ldst;
+static TCGv cpu_fregs[32];
+
+/* internal register indexes */
+static TCGv cpu_flags, cpu_delayed_pc;
+
+#include "exec/gen-icount.h"
+
+void sh4_translate_init(void)
+{
+ int i;
+ static int done_init = 0;
+ static const char * const gregnames[24] = {
+ "R0_BANK0", "R1_BANK0", "R2_BANK0", "R3_BANK0",
+ "R4_BANK0", "R5_BANK0", "R6_BANK0", "R7_BANK0",
+ "R8", "R9", "R10", "R11", "R12", "R13", "R14", "R15",
+ "R0_BANK1", "R1_BANK1", "R2_BANK1", "R3_BANK1",
+ "R4_BANK1", "R5_BANK1", "R6_BANK1", "R7_BANK1"
+ };
+ static const char * const fregnames[32] = {
+ "FPR0_BANK0", "FPR1_BANK0", "FPR2_BANK0", "FPR3_BANK0",
+ "FPR4_BANK0", "FPR5_BANK0", "FPR6_BANK0", "FPR7_BANK0",
+ "FPR8_BANK0", "FPR9_BANK0", "FPR10_BANK0", "FPR11_BANK0",
+ "FPR12_BANK0", "FPR13_BANK0", "FPR14_BANK0", "FPR15_BANK0",
+ "FPR0_BANK1", "FPR1_BANK1", "FPR2_BANK1", "FPR3_BANK1",
+ "FPR4_BANK1", "FPR5_BANK1", "FPR6_BANK1", "FPR7_BANK1",
+ "FPR8_BANK1", "FPR9_BANK1", "FPR10_BANK1", "FPR11_BANK1",
+ "FPR12_BANK1", "FPR13_BANK1", "FPR14_BANK1", "FPR15_BANK1",
+ };
+
+ if (done_init)
+ return;
+
+ cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
+ tcg_ctx.tcg_env = cpu_env;
+
+ for (i = 0; i < 24; i++)
+ cpu_gregs[i] = tcg_global_mem_new_i32(cpu_env,
+ offsetof(CPUSH4State, gregs[i]),
+ gregnames[i]);
+
+ cpu_pc = tcg_global_mem_new_i32(cpu_env,
+ offsetof(CPUSH4State, pc), "PC");
+ cpu_sr = tcg_global_mem_new_i32(cpu_env,
+ offsetof(CPUSH4State, sr), "SR");
+ cpu_sr_m = tcg_global_mem_new_i32(cpu_env,
+ offsetof(CPUSH4State, sr_m), "SR_M");
+ cpu_sr_q = tcg_global_mem_new_i32(cpu_env,
+ offsetof(CPUSH4State, sr_q), "SR_Q");
+ cpu_sr_t = tcg_global_mem_new_i32(cpu_env,
+ offsetof(CPUSH4State, sr_t), "SR_T");
+ cpu_ssr = tcg_global_mem_new_i32(cpu_env,
+ offsetof(CPUSH4State, ssr), "SSR");
+ cpu_spc = tcg_global_mem_new_i32(cpu_env,
+ offsetof(CPUSH4State, spc), "SPC");
+ cpu_gbr = tcg_global_mem_new_i32(cpu_env,
+ offsetof(CPUSH4State, gbr), "GBR");
+ cpu_vbr = tcg_global_mem_new_i32(cpu_env,
+ offsetof(CPUSH4State, vbr), "VBR");
+ cpu_sgr = tcg_global_mem_new_i32(cpu_env,
+ offsetof(CPUSH4State, sgr), "SGR");
+ cpu_dbr = tcg_global_mem_new_i32(cpu_env,
+ offsetof(CPUSH4State, dbr), "DBR");
+ cpu_mach = tcg_global_mem_new_i32(cpu_env,
+ offsetof(CPUSH4State, mach), "MACH");
+ cpu_macl = tcg_global_mem_new_i32(cpu_env,
+ offsetof(CPUSH4State, macl), "MACL");
+ cpu_pr = tcg_global_mem_new_i32(cpu_env,
+ offsetof(CPUSH4State, pr), "PR");
+ cpu_fpscr = tcg_global_mem_new_i32(cpu_env,
+ offsetof(CPUSH4State, fpscr), "FPSCR");
+ cpu_fpul = tcg_global_mem_new_i32(cpu_env,
+ offsetof(CPUSH4State, fpul), "FPUL");
+
+ cpu_flags = tcg_global_mem_new_i32(cpu_env,
+ offsetof(CPUSH4State, flags), "_flags_");
+ cpu_delayed_pc = tcg_global_mem_new_i32(cpu_env,
+ offsetof(CPUSH4State, delayed_pc),
+ "_delayed_pc_");
+ cpu_ldst = tcg_global_mem_new_i32(cpu_env,
+ offsetof(CPUSH4State, ldst), "_ldst_");
+
+ for (i = 0; i < 32; i++)
+ cpu_fregs[i] = tcg_global_mem_new_i32(cpu_env,
+ offsetof(CPUSH4State, fregs[i]),
+ fregnames[i]);
+
+ done_init = 1;
+}
+
+void superh_cpu_dump_state(CPUState *cs, FILE *f,
+ fprintf_function cpu_fprintf, int flags)
+{
+ SuperHCPU *cpu = SUPERH_CPU(cs);
+ CPUSH4State *env = &cpu->env;
+ int i;
+ cpu_fprintf(f, "pc=0x%08x sr=0x%08x pr=0x%08x fpscr=0x%08x\n",
+ env->pc, cpu_read_sr(env), env->pr, env->fpscr);
+ cpu_fprintf(f, "spc=0x%08x ssr=0x%08x gbr=0x%08x vbr=0x%08x\n",
+ env->spc, env->ssr, env->gbr, env->vbr);
+ cpu_fprintf(f, "sgr=0x%08x dbr=0x%08x delayed_pc=0x%08x fpul=0x%08x\n",
+ env->sgr, env->dbr, env->delayed_pc, env->fpul);
+ for (i = 0; i < 24; i += 4) {
+ cpu_fprintf(f, "r%d=0x%08x r%d=0x%08x r%d=0x%08x r%d=0x%08x\n",
+ i, env->gregs[i], i + 1, env->gregs[i + 1],
+ i + 2, env->gregs[i + 2], i + 3, env->gregs[i + 3]);
+ }
+ if (env->flags & DELAY_SLOT) {
+ cpu_fprintf(f, "in delay slot (delayed_pc=0x%08x)\n",
+ env->delayed_pc);
+ } else if (env->flags & DELAY_SLOT_CONDITIONAL) {
+ cpu_fprintf(f, "in conditional delay slot (delayed_pc=0x%08x)\n",
+ env->delayed_pc);
+ }
+}
+
+static void gen_read_sr(TCGv dst)
+{
+ TCGv t0 = tcg_temp_new();
+ tcg_gen_shli_i32(t0, cpu_sr_q, SR_Q);
+ tcg_gen_or_i32(dst, dst, t0);
+ tcg_gen_shli_i32(t0, cpu_sr_m, SR_M);
+ tcg_gen_or_i32(dst, dst, t0);
+ tcg_gen_shli_i32(t0, cpu_sr_t, SR_T);
+ tcg_gen_or_i32(dst, cpu_sr, t0);
+ tcg_temp_free_i32(t0);
+}
+
+static void gen_write_sr(TCGv src)
+{
+ tcg_gen_andi_i32(cpu_sr, src,
+ ~((1u << SR_Q) | (1u << SR_M) | (1u << SR_T)));
+ tcg_gen_shri_i32(cpu_sr_q, src, SR_Q);
+ tcg_gen_andi_i32(cpu_sr_q, cpu_sr_q, 1);
+ tcg_gen_shri_i32(cpu_sr_m, src, SR_M);
+ tcg_gen_andi_i32(cpu_sr_m, cpu_sr_m, 1);
+ tcg_gen_shri_i32(cpu_sr_t, src, SR_T);
+ tcg_gen_andi_i32(cpu_sr_t, cpu_sr_t, 1);
+}
+
+static inline bool use_goto_tb(DisasContext *ctx, target_ulong dest)
+{
+ if (unlikely(ctx->singlestep_enabled)) {
+ return false;
+ }
+
+#ifndef CONFIG_USER_ONLY
+ return (ctx->tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK);
+#else
+ return true;
+#endif
+}
+
+static void gen_goto_tb(DisasContext *ctx, int n, target_ulong dest)
+{
+ if (use_goto_tb(ctx, dest)) {
+ /* Use a direct jump if in same page and singlestep not enabled */
+ tcg_gen_goto_tb(n);
+ tcg_gen_movi_i32(cpu_pc, dest);
+ tcg_gen_exit_tb((uintptr_t)ctx->tb + n);
+ } else {
+ tcg_gen_movi_i32(cpu_pc, dest);
+ if (ctx->singlestep_enabled)
+ gen_helper_debug(cpu_env);
+ tcg_gen_exit_tb(0);
+ }
+}
+
+static void gen_jump(DisasContext * ctx)
+{
+ if (ctx->delayed_pc == (uint32_t) - 1) {
+ /* Target is not statically known, it comes necessarily from a
+ delayed jump as immediate jump are conditinal jumps */
+ tcg_gen_mov_i32(cpu_pc, cpu_delayed_pc);
+ if (ctx->singlestep_enabled)
+ gen_helper_debug(cpu_env);
+ tcg_gen_exit_tb(0);
+ } else {
+ gen_goto_tb(ctx, 0, ctx->delayed_pc);
+ }
+}
+
+static inline void gen_branch_slot(uint32_t delayed_pc, int t)
+{
+ TCGLabel *label = gen_new_label();
+ tcg_gen_movi_i32(cpu_delayed_pc, delayed_pc);
+ tcg_gen_brcondi_i32(t ? TCG_COND_EQ : TCG_COND_NE, cpu_sr_t, 0, label);
+ tcg_gen_ori_i32(cpu_flags, cpu_flags, DELAY_SLOT_TRUE);
+ gen_set_label(label);
+}
+
+/* Immediate conditional jump (bt or bf) */
+static void gen_conditional_jump(DisasContext * ctx,
+ target_ulong ift, target_ulong ifnott)
+{
+ TCGLabel *l1 = gen_new_label();
+ tcg_gen_brcondi_i32(TCG_COND_NE, cpu_sr_t, 0, l1);
+ gen_goto_tb(ctx, 0, ifnott);
+ gen_set_label(l1);
+ gen_goto_tb(ctx, 1, ift);
+}
+
+/* Delayed conditional jump (bt or bf) */
+static void gen_delayed_conditional_jump(DisasContext * ctx)
+{
+ TCGLabel *l1;
+ TCGv ds;
+
+ l1 = gen_new_label();
+ ds = tcg_temp_new();
+ tcg_gen_andi_i32(ds, cpu_flags, DELAY_SLOT_TRUE);
+ tcg_gen_brcondi_i32(TCG_COND_NE, ds, 0, l1);
+ gen_goto_tb(ctx, 1, ctx->pc + 2);
+ gen_set_label(l1);
+ tcg_gen_andi_i32(cpu_flags, cpu_flags, ~DELAY_SLOT_TRUE);
+ gen_jump(ctx);
+}
+
+static inline void gen_store_flags(uint32_t flags)
+{
+ tcg_gen_andi_i32(cpu_flags, cpu_flags, DELAY_SLOT_TRUE);
+ tcg_gen_ori_i32(cpu_flags, cpu_flags, flags);
+}
+
+static inline void gen_load_fpr64(TCGv_i64 t, int reg)
+{
+ tcg_gen_concat_i32_i64(t, cpu_fregs[reg + 1], cpu_fregs[reg]);
+}
+
+static inline void gen_store_fpr64 (TCGv_i64 t, int reg)
+{
+ TCGv_i32 tmp = tcg_temp_new_i32();
+ tcg_gen_extrl_i64_i32(tmp, t);
+ tcg_gen_mov_i32(cpu_fregs[reg + 1], tmp);
+ tcg_gen_shri_i64(t, t, 32);
+ tcg_gen_extrl_i64_i32(tmp, t);
+ tcg_gen_mov_i32(cpu_fregs[reg], tmp);
+ tcg_temp_free_i32(tmp);
+}
+
+#define B3_0 (ctx->opcode & 0xf)
+#define B6_4 ((ctx->opcode >> 4) & 0x7)
+#define B7_4 ((ctx->opcode >> 4) & 0xf)
+#define B7_0 (ctx->opcode & 0xff)
+#define B7_0s ((int32_t) (int8_t) (ctx->opcode & 0xff))
+#define B11_0s (ctx->opcode & 0x800 ? 0xfffff000 | (ctx->opcode & 0xfff) : \
+ (ctx->opcode & 0xfff))
+#define B11_8 ((ctx->opcode >> 8) & 0xf)
+#define B15_12 ((ctx->opcode >> 12) & 0xf)
+
+#define REG(x) ((x) < 8 && (ctx->flags & (1u << SR_MD))\
+ && (ctx->flags & (1u << SR_RB))\
+ ? (cpu_gregs[x + 16]) : (cpu_gregs[x]))
+
+#define ALTREG(x) ((x) < 8 && (!(ctx->flags & (1u << SR_MD))\
+ || !(ctx->flags & (1u << SR_RB)))\
+ ? (cpu_gregs[x + 16]) : (cpu_gregs[x]))
+
+#define FREG(x) (ctx->flags & FPSCR_FR ? (x) ^ 0x10 : (x))
+#define XHACK(x) ((((x) & 1 ) << 4) | ((x) & 0xe))
+#define XREG(x) (ctx->flags & FPSCR_FR ? XHACK(x) ^ 0x10 : XHACK(x))
+#define DREG(x) FREG(x) /* Assumes lsb of (x) is always 0 */
+
+#define CHECK_NOT_DELAY_SLOT \
+ if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) \
+ { \
+ tcg_gen_movi_i32(cpu_pc, ctx->pc); \
+ gen_helper_raise_slot_illegal_instruction(cpu_env); \
+ ctx->bstate = BS_BRANCH; \
+ return; \
+ }
+
+#define CHECK_PRIVILEGED \
+ if (IS_USER(ctx)) { \
+ tcg_gen_movi_i32(cpu_pc, ctx->pc); \
+ if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) { \
+ gen_helper_raise_slot_illegal_instruction(cpu_env); \
+ } else { \
+ gen_helper_raise_illegal_instruction(cpu_env); \
+ } \
+ ctx->bstate = BS_BRANCH; \
+ return; \
+ }
+
+#define CHECK_FPU_ENABLED \
+ if (ctx->flags & (1u << SR_FD)) { \
+ tcg_gen_movi_i32(cpu_pc, ctx->pc); \
+ if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) { \
+ gen_helper_raise_slot_fpu_disable(cpu_env); \
+ } else { \
+ gen_helper_raise_fpu_disable(cpu_env); \
+ } \
+ ctx->bstate = BS_BRANCH; \
+ return; \
+ }
+
+static void _decode_opc(DisasContext * ctx)
+{
+ /* This code tries to make movcal emulation sufficiently
+ accurate for Linux purposes. This instruction writes
+ memory, and prior to that, always allocates a cache line.
+ It is used in two contexts:
+ - in memcpy, where data is copied in blocks, the first write
+ of to a block uses movca.l for performance.
+ - in arch/sh/mm/cache-sh4.c, movcal.l + ocbi combination is used
+ to flush the cache. Here, the data written by movcal.l is never
+ written to memory, and the data written is just bogus.
+
+ To simulate this, we simulate movcal.l, we store the value to memory,
+ but we also remember the previous content. If we see ocbi, we check
+ if movcal.l for that address was done previously. If so, the write should
+ not have hit the memory, so we restore the previous content.
+ When we see an instruction that is neither movca.l
+ nor ocbi, the previous content is discarded.
+
+ To optimize, we only try to flush stores when we're at the start of
+ TB, or if we already saw movca.l in this TB and did not flush stores
+ yet. */
+ if (ctx->has_movcal)
+ {
+ int opcode = ctx->opcode & 0xf0ff;
+ if (opcode != 0x0093 /* ocbi */
+ && opcode != 0x00c3 /* movca.l */)
+ {
+ gen_helper_discard_movcal_backup(cpu_env);
+ ctx->has_movcal = 0;
+ }
+ }
+
+#if 0
+ fprintf(stderr, "Translating opcode 0x%04x\n", ctx->opcode);
+#endif
+
+ switch (ctx->opcode) {
+ case 0x0019: /* div0u */
+ tcg_gen_movi_i32(cpu_sr_m, 0);
+ tcg_gen_movi_i32(cpu_sr_q, 0);
+ tcg_gen_movi_i32(cpu_sr_t, 0);
+ return;
+ case 0x000b: /* rts */
+ CHECK_NOT_DELAY_SLOT
+ tcg_gen_mov_i32(cpu_delayed_pc, cpu_pr);
+ ctx->flags |= DELAY_SLOT;
+ ctx->delayed_pc = (uint32_t) - 1;
+ return;
+ case 0x0028: /* clrmac */
+ tcg_gen_movi_i32(cpu_mach, 0);
+ tcg_gen_movi_i32(cpu_macl, 0);
+ return;
+ case 0x0048: /* clrs */
+ tcg_gen_andi_i32(cpu_sr, cpu_sr, ~(1u << SR_S));
+ return;
+ case 0x0008: /* clrt */
+ tcg_gen_movi_i32(cpu_sr_t, 0);
+ return;
+ case 0x0038: /* ldtlb */
+ CHECK_PRIVILEGED
+ gen_helper_ldtlb(cpu_env);
+ return;
+ case 0x002b: /* rte */
+ CHECK_PRIVILEGED
+ CHECK_NOT_DELAY_SLOT
+ gen_write_sr(cpu_ssr);
+ tcg_gen_mov_i32(cpu_delayed_pc, cpu_spc);
+ ctx->flags |= DELAY_SLOT;
+ ctx->delayed_pc = (uint32_t) - 1;
+ return;
+ case 0x0058: /* sets */
+ tcg_gen_ori_i32(cpu_sr, cpu_sr, (1u << SR_S));
+ return;
+ case 0x0018: /* sett */
+ tcg_gen_movi_i32(cpu_sr_t, 1);
+ return;
+ case 0xfbfd: /* frchg */
+ tcg_gen_xori_i32(cpu_fpscr, cpu_fpscr, FPSCR_FR);
+ ctx->bstate = BS_STOP;
+ return;
+ case 0xf3fd: /* fschg */
+ tcg_gen_xori_i32(cpu_fpscr, cpu_fpscr, FPSCR_SZ);
+ ctx->bstate = BS_STOP;
+ return;
+ case 0x0009: /* nop */
+ return;
+ case 0x001b: /* sleep */
+ CHECK_PRIVILEGED
+ tcg_gen_movi_i32(cpu_pc, ctx->pc + 2);
+ gen_helper_sleep(cpu_env);
+ return;
+ }
+
+ switch (ctx->opcode & 0xf000) {
+ case 0x1000: /* mov.l Rm,@(disp,Rn) */
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_addi_i32(addr, REG(B11_8), B3_0 * 4);
+ tcg_gen_qemu_st_i32(REG(B7_4), addr, ctx->memidx, MO_TEUL);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0x5000: /* mov.l @(disp,Rm),Rn */
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_addi_i32(addr, REG(B7_4), B3_0 * 4);
+ tcg_gen_qemu_ld_i32(REG(B11_8), addr, ctx->memidx, MO_TESL);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0xe000: /* mov #imm,Rn */
+ tcg_gen_movi_i32(REG(B11_8), B7_0s);
+ return;
+ case 0x9000: /* mov.w @(disp,PC),Rn */
+ {
+ TCGv addr = tcg_const_i32(ctx->pc + 4 + B7_0 * 2);
+ tcg_gen_qemu_ld_i32(REG(B11_8), addr, ctx->memidx, MO_TESW);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0xd000: /* mov.l @(disp,PC),Rn */
+ {
+ TCGv addr = tcg_const_i32((ctx->pc + 4 + B7_0 * 4) & ~3);
+ tcg_gen_qemu_ld_i32(REG(B11_8), addr, ctx->memidx, MO_TESL);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0x7000: /* add #imm,Rn */
+ tcg_gen_addi_i32(REG(B11_8), REG(B11_8), B7_0s);
+ return;
+ case 0xa000: /* bra disp */
+ CHECK_NOT_DELAY_SLOT
+ ctx->delayed_pc = ctx->pc + 4 + B11_0s * 2;
+ tcg_gen_movi_i32(cpu_delayed_pc, ctx->delayed_pc);
+ ctx->flags |= DELAY_SLOT;
+ return;
+ case 0xb000: /* bsr disp */
+ CHECK_NOT_DELAY_SLOT
+ tcg_gen_movi_i32(cpu_pr, ctx->pc + 4);
+ ctx->delayed_pc = ctx->pc + 4 + B11_0s * 2;
+ tcg_gen_movi_i32(cpu_delayed_pc, ctx->delayed_pc);
+ ctx->flags |= DELAY_SLOT;
+ return;
+ }
+
+ switch (ctx->opcode & 0xf00f) {
+ case 0x6003: /* mov Rm,Rn */
+ tcg_gen_mov_i32(REG(B11_8), REG(B7_4));
+ return;
+ case 0x2000: /* mov.b Rm,@Rn */
+ tcg_gen_qemu_st_i32(REG(B7_4), REG(B11_8), ctx->memidx, MO_UB);
+ return;
+ case 0x2001: /* mov.w Rm,@Rn */
+ tcg_gen_qemu_st_i32(REG(B7_4), REG(B11_8), ctx->memidx, MO_TEUW);
+ return;
+ case 0x2002: /* mov.l Rm,@Rn */
+ tcg_gen_qemu_st_i32(REG(B7_4), REG(B11_8), ctx->memidx, MO_TEUL);
+ return;
+ case 0x6000: /* mov.b @Rm,Rn */
+ tcg_gen_qemu_ld_i32(REG(B11_8), REG(B7_4), ctx->memidx, MO_SB);
+ return;
+ case 0x6001: /* mov.w @Rm,Rn */
+ tcg_gen_qemu_ld_i32(REG(B11_8), REG(B7_4), ctx->memidx, MO_TESW);
+ return;
+ case 0x6002: /* mov.l @Rm,Rn */
+ tcg_gen_qemu_ld_i32(REG(B11_8), REG(B7_4), ctx->memidx, MO_TESL);
+ return;
+ case 0x2004: /* mov.b Rm,@-Rn */
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_subi_i32(addr, REG(B11_8), 1);
+ /* might cause re-execution */
+ tcg_gen_qemu_st_i32(REG(B7_4), addr, ctx->memidx, MO_UB);
+ tcg_gen_mov_i32(REG(B11_8), addr); /* modify register status */
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0x2005: /* mov.w Rm,@-Rn */
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_subi_i32(addr, REG(B11_8), 2);
+ tcg_gen_qemu_st_i32(REG(B7_4), addr, ctx->memidx, MO_TEUW);
+ tcg_gen_mov_i32(REG(B11_8), addr);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0x2006: /* mov.l Rm,@-Rn */
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_subi_i32(addr, REG(B11_8), 4);
+ tcg_gen_qemu_st_i32(REG(B7_4), addr, ctx->memidx, MO_TEUL);
+ tcg_gen_mov_i32(REG(B11_8), addr);
+ }
+ return;
+ case 0x6004: /* mov.b @Rm+,Rn */
+ tcg_gen_qemu_ld_i32(REG(B11_8), REG(B7_4), ctx->memidx, MO_SB);
+ if ( B11_8 != B7_4 )
+ tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 1);
+ return;
+ case 0x6005: /* mov.w @Rm+,Rn */
+ tcg_gen_qemu_ld_i32(REG(B11_8), REG(B7_4), ctx->memidx, MO_TESW);
+ if ( B11_8 != B7_4 )
+ tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 2);
+ return;
+ case 0x6006: /* mov.l @Rm+,Rn */
+ tcg_gen_qemu_ld_i32(REG(B11_8), REG(B7_4), ctx->memidx, MO_TESL);
+ if ( B11_8 != B7_4 )
+ tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 4);
+ return;
+ case 0x0004: /* mov.b Rm,@(R0,Rn) */
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_add_i32(addr, REG(B11_8), REG(0));
+ tcg_gen_qemu_st_i32(REG(B7_4), addr, ctx->memidx, MO_UB);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0x0005: /* mov.w Rm,@(R0,Rn) */
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_add_i32(addr, REG(B11_8), REG(0));
+ tcg_gen_qemu_st_i32(REG(B7_4), addr, ctx->memidx, MO_TEUW);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0x0006: /* mov.l Rm,@(R0,Rn) */
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_add_i32(addr, REG(B11_8), REG(0));
+ tcg_gen_qemu_st_i32(REG(B7_4), addr, ctx->memidx, MO_TEUL);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0x000c: /* mov.b @(R0,Rm),Rn */
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_add_i32(addr, REG(B7_4), REG(0));
+ tcg_gen_qemu_ld_i32(REG(B11_8), addr, ctx->memidx, MO_SB);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0x000d: /* mov.w @(R0,Rm),Rn */
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_add_i32(addr, REG(B7_4), REG(0));
+ tcg_gen_qemu_ld_i32(REG(B11_8), addr, ctx->memidx, MO_TESW);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0x000e: /* mov.l @(R0,Rm),Rn */
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_add_i32(addr, REG(B7_4), REG(0));
+ tcg_gen_qemu_ld_i32(REG(B11_8), addr, ctx->memidx, MO_TESL);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0x6008: /* swap.b Rm,Rn */
+ {
+ TCGv low = tcg_temp_new();;
+ tcg_gen_ext16u_i32(low, REG(B7_4));
+ tcg_gen_bswap16_i32(low, low);
+ tcg_gen_deposit_i32(REG(B11_8), REG(B7_4), low, 0, 16);
+ tcg_temp_free(low);
+ }
+ return;
+ case 0x6009: /* swap.w Rm,Rn */
+ tcg_gen_rotli_i32(REG(B11_8), REG(B7_4), 16);
+ return;
+ case 0x200d: /* xtrct Rm,Rn */
+ {
+ TCGv high, low;
+ high = tcg_temp_new();
+ tcg_gen_shli_i32(high, REG(B7_4), 16);
+ low = tcg_temp_new();
+ tcg_gen_shri_i32(low, REG(B11_8), 16);
+ tcg_gen_or_i32(REG(B11_8), high, low);
+ tcg_temp_free(low);
+ tcg_temp_free(high);
+ }
+ return;
+ case 0x300c: /* add Rm,Rn */
+ tcg_gen_add_i32(REG(B11_8), REG(B11_8), REG(B7_4));
+ return;
+ case 0x300e: /* addc Rm,Rn */
+ {
+ TCGv t0, t1;
+ t0 = tcg_const_tl(0);
+ t1 = tcg_temp_new();
+ tcg_gen_add2_i32(t1, cpu_sr_t, cpu_sr_t, t0, REG(B7_4), t0);
+ tcg_gen_add2_i32(REG(B11_8), cpu_sr_t,
+ REG(B11_8), t0, t1, cpu_sr_t);
+ tcg_temp_free(t0);
+ tcg_temp_free(t1);
+ }
+ return;
+ case 0x300f: /* addv Rm,Rn */
+ {
+ TCGv t0, t1, t2;
+ t0 = tcg_temp_new();
+ tcg_gen_add_i32(t0, REG(B7_4), REG(B11_8));
+ t1 = tcg_temp_new();
+ tcg_gen_xor_i32(t1, t0, REG(B11_8));
+ t2 = tcg_temp_new();
+ tcg_gen_xor_i32(t2, REG(B7_4), REG(B11_8));
+ tcg_gen_andc_i32(cpu_sr_t, t1, t2);
+ tcg_temp_free(t2);
+ tcg_gen_shri_i32(cpu_sr_t, cpu_sr_t, 31);
+ tcg_temp_free(t1);
+ tcg_gen_mov_i32(REG(B7_4), t0);
+ tcg_temp_free(t0);
+ }
+ return;
+ case 0x2009: /* and Rm,Rn */
+ tcg_gen_and_i32(REG(B11_8), REG(B11_8), REG(B7_4));
+ return;
+ case 0x3000: /* cmp/eq Rm,Rn */
+ tcg_gen_setcond_i32(TCG_COND_EQ, cpu_sr_t, REG(B11_8), REG(B7_4));
+ return;
+ case 0x3003: /* cmp/ge Rm,Rn */
+ tcg_gen_setcond_i32(TCG_COND_GE, cpu_sr_t, REG(B11_8), REG(B7_4));
+ return;
+ case 0x3007: /* cmp/gt Rm,Rn */
+ tcg_gen_setcond_i32(TCG_COND_GT, cpu_sr_t, REG(B11_8), REG(B7_4));
+ return;
+ case 0x3006: /* cmp/hi Rm,Rn */
+ tcg_gen_setcond_i32(TCG_COND_GTU, cpu_sr_t, REG(B11_8), REG(B7_4));
+ return;
+ case 0x3002: /* cmp/hs Rm,Rn */
+ tcg_gen_setcond_i32(TCG_COND_GEU, cpu_sr_t, REG(B11_8), REG(B7_4));
+ return;
+ case 0x200c: /* cmp/str Rm,Rn */
+ {
+ TCGv cmp1 = tcg_temp_new();
+ TCGv cmp2 = tcg_temp_new();
+ tcg_gen_xor_i32(cmp2, REG(B7_4), REG(B11_8));
+ tcg_gen_subi_i32(cmp1, cmp2, 0x01010101);
+ tcg_gen_andc_i32(cmp1, cmp1, cmp2);
+ tcg_gen_andi_i32(cmp1, cmp1, 0x80808080);
+ tcg_gen_setcondi_i32(TCG_COND_NE, cpu_sr_t, cmp1, 0);
+ tcg_temp_free(cmp2);
+ tcg_temp_free(cmp1);
+ }
+ return;
+ case 0x2007: /* div0s Rm,Rn */
+ tcg_gen_shri_i32(cpu_sr_q, REG(B11_8), 31); /* SR_Q */
+ tcg_gen_shri_i32(cpu_sr_m, REG(B7_4), 31); /* SR_M */
+ tcg_gen_xor_i32(cpu_sr_t, cpu_sr_q, cpu_sr_m); /* SR_T */
+ return;
+ case 0x3004: /* div1 Rm,Rn */
+ {
+ TCGv t0 = tcg_temp_new();
+ TCGv t1 = tcg_temp_new();
+ TCGv t2 = tcg_temp_new();
+ TCGv zero = tcg_const_i32(0);
+
+ /* shift left arg1, saving the bit being pushed out and inserting
+ T on the right */
+ tcg_gen_shri_i32(t0, REG(B11_8), 31);
+ tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 1);
+ tcg_gen_or_i32(REG(B11_8), REG(B11_8), cpu_sr_t);
+
+ /* Add or subtract arg0 from arg1 depending if Q == M. To avoid
+ using 64-bit temps, we compute arg0's high part from q ^ m, so
+ that it is 0x00000000 when adding the value or 0xffffffff when
+ subtracting it. */
+ tcg_gen_xor_i32(t1, cpu_sr_q, cpu_sr_m);
+ tcg_gen_subi_i32(t1, t1, 1);
+ tcg_gen_neg_i32(t2, REG(B7_4));
+ tcg_gen_movcond_i32(TCG_COND_EQ, t2, t1, zero, REG(B7_4), t2);
+ tcg_gen_add2_i32(REG(B11_8), t1, REG(B11_8), zero, t2, t1);
+
+ /* compute T and Q depending on carry */
+ tcg_gen_andi_i32(t1, t1, 1);
+ tcg_gen_xor_i32(t1, t1, t0);
+ tcg_gen_xori_i32(cpu_sr_t, t1, 1);
+ tcg_gen_xor_i32(cpu_sr_q, cpu_sr_m, t1);
+
+ tcg_temp_free(zero);
+ tcg_temp_free(t2);
+ tcg_temp_free(t1);
+ tcg_temp_free(t0);
+ }
+ return;
+ case 0x300d: /* dmuls.l Rm,Rn */
+ tcg_gen_muls2_i32(cpu_macl, cpu_mach, REG(B7_4), REG(B11_8));
+ return;
+ case 0x3005: /* dmulu.l Rm,Rn */
+ tcg_gen_mulu2_i32(cpu_macl, cpu_mach, REG(B7_4), REG(B11_8));
+ return;
+ case 0x600e: /* exts.b Rm,Rn */
+ tcg_gen_ext8s_i32(REG(B11_8), REG(B7_4));
+ return;
+ case 0x600f: /* exts.w Rm,Rn */
+ tcg_gen_ext16s_i32(REG(B11_8), REG(B7_4));
+ return;
+ case 0x600c: /* extu.b Rm,Rn */
+ tcg_gen_ext8u_i32(REG(B11_8), REG(B7_4));
+ return;
+ case 0x600d: /* extu.w Rm,Rn */
+ tcg_gen_ext16u_i32(REG(B11_8), REG(B7_4));
+ return;
+ case 0x000f: /* mac.l @Rm+,@Rn+ */
+ {
+ TCGv arg0, arg1;
+ arg0 = tcg_temp_new();
+ tcg_gen_qemu_ld_i32(arg0, REG(B7_4), ctx->memidx, MO_TESL);
+ arg1 = tcg_temp_new();
+ tcg_gen_qemu_ld_i32(arg1, REG(B11_8), ctx->memidx, MO_TESL);
+ gen_helper_macl(cpu_env, arg0, arg1);
+ tcg_temp_free(arg1);
+ tcg_temp_free(arg0);
+ tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 4);
+ tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4);
+ }
+ return;
+ case 0x400f: /* mac.w @Rm+,@Rn+ */
+ {
+ TCGv arg0, arg1;
+ arg0 = tcg_temp_new();
+ tcg_gen_qemu_ld_i32(arg0, REG(B7_4), ctx->memidx, MO_TESL);
+ arg1 = tcg_temp_new();
+ tcg_gen_qemu_ld_i32(arg1, REG(B11_8), ctx->memidx, MO_TESL);
+ gen_helper_macw(cpu_env, arg0, arg1);
+ tcg_temp_free(arg1);
+ tcg_temp_free(arg0);
+ tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 2);
+ tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 2);
+ }
+ return;
+ case 0x0007: /* mul.l Rm,Rn */
+ tcg_gen_mul_i32(cpu_macl, REG(B7_4), REG(B11_8));
+ return;
+ case 0x200f: /* muls.w Rm,Rn */
+ {
+ TCGv arg0, arg1;
+ arg0 = tcg_temp_new();
+ tcg_gen_ext16s_i32(arg0, REG(B7_4));
+ arg1 = tcg_temp_new();
+ tcg_gen_ext16s_i32(arg1, REG(B11_8));
+ tcg_gen_mul_i32(cpu_macl, arg0, arg1);
+ tcg_temp_free(arg1);
+ tcg_temp_free(arg0);
+ }
+ return;
+ case 0x200e: /* mulu.w Rm,Rn */
+ {
+ TCGv arg0, arg1;
+ arg0 = tcg_temp_new();
+ tcg_gen_ext16u_i32(arg0, REG(B7_4));
+ arg1 = tcg_temp_new();
+ tcg_gen_ext16u_i32(arg1, REG(B11_8));
+ tcg_gen_mul_i32(cpu_macl, arg0, arg1);
+ tcg_temp_free(arg1);
+ tcg_temp_free(arg0);
+ }
+ return;
+ case 0x600b: /* neg Rm,Rn */
+ tcg_gen_neg_i32(REG(B11_8), REG(B7_4));
+ return;
+ case 0x600a: /* negc Rm,Rn */
+ {
+ TCGv t0 = tcg_const_i32(0);
+ tcg_gen_add2_i32(REG(B11_8), cpu_sr_t,
+ REG(B7_4), t0, cpu_sr_t, t0);
+ tcg_gen_sub2_i32(REG(B11_8), cpu_sr_t,
+ t0, t0, REG(B11_8), cpu_sr_t);
+ tcg_gen_andi_i32(cpu_sr_t, cpu_sr_t, 1);
+ tcg_temp_free(t0);
+ }
+ return;
+ case 0x6007: /* not Rm,Rn */
+ tcg_gen_not_i32(REG(B11_8), REG(B7_4));
+ return;
+ case 0x200b: /* or Rm,Rn */
+ tcg_gen_or_i32(REG(B11_8), REG(B11_8), REG(B7_4));
+ return;
+ case 0x400c: /* shad Rm,Rn */
+ {
+ TCGv t0 = tcg_temp_new();
+ TCGv t1 = tcg_temp_new();
+ TCGv t2 = tcg_temp_new();
+
+ tcg_gen_andi_i32(t0, REG(B7_4), 0x1f);
+
+ /* positive case: shift to the left */
+ tcg_gen_shl_i32(t1, REG(B11_8), t0);
+
+ /* negative case: shift to the right in two steps to
+ correctly handle the -32 case */
+ tcg_gen_xori_i32(t0, t0, 0x1f);
+ tcg_gen_sar_i32(t2, REG(B11_8), t0);
+ tcg_gen_sari_i32(t2, t2, 1);
+
+ /* select between the two cases */
+ tcg_gen_movi_i32(t0, 0);
+ tcg_gen_movcond_i32(TCG_COND_GE, REG(B11_8), REG(B7_4), t0, t1, t2);
+
+ tcg_temp_free(t0);
+ tcg_temp_free(t1);
+ tcg_temp_free(t2);
+ }
+ return;
+ case 0x400d: /* shld Rm,Rn */
+ {
+ TCGv t0 = tcg_temp_new();
+ TCGv t1 = tcg_temp_new();
+ TCGv t2 = tcg_temp_new();
+
+ tcg_gen_andi_i32(t0, REG(B7_4), 0x1f);
+
+ /* positive case: shift to the left */
+ tcg_gen_shl_i32(t1, REG(B11_8), t0);
+
+ /* negative case: shift to the right in two steps to
+ correctly handle the -32 case */
+ tcg_gen_xori_i32(t0, t0, 0x1f);
+ tcg_gen_shr_i32(t2, REG(B11_8), t0);
+ tcg_gen_shri_i32(t2, t2, 1);
+
+ /* select between the two cases */
+ tcg_gen_movi_i32(t0, 0);
+ tcg_gen_movcond_i32(TCG_COND_GE, REG(B11_8), REG(B7_4), t0, t1, t2);
+
+ tcg_temp_free(t0);
+ tcg_temp_free(t1);
+ tcg_temp_free(t2);
+ }
+ return;
+ case 0x3008: /* sub Rm,Rn */
+ tcg_gen_sub_i32(REG(B11_8), REG(B11_8), REG(B7_4));
+ return;
+ case 0x300a: /* subc Rm,Rn */
+ {
+ TCGv t0, t1;
+ t0 = tcg_const_tl(0);
+ t1 = tcg_temp_new();
+ tcg_gen_add2_i32(t1, cpu_sr_t, cpu_sr_t, t0, REG(B7_4), t0);
+ tcg_gen_sub2_i32(REG(B11_8), cpu_sr_t,
+ REG(B11_8), t0, t1, cpu_sr_t);
+ tcg_gen_andi_i32(cpu_sr_t, cpu_sr_t, 1);
+ tcg_temp_free(t0);
+ tcg_temp_free(t1);
+ }
+ return;
+ case 0x300b: /* subv Rm,Rn */
+ {
+ TCGv t0, t1, t2;
+ t0 = tcg_temp_new();
+ tcg_gen_sub_i32(t0, REG(B11_8), REG(B7_4));
+ t1 = tcg_temp_new();
+ tcg_gen_xor_i32(t1, t0, REG(B7_4));
+ t2 = tcg_temp_new();
+ tcg_gen_xor_i32(t2, REG(B11_8), REG(B7_4));
+ tcg_gen_and_i32(t1, t1, t2);
+ tcg_temp_free(t2);
+ tcg_gen_shri_i32(cpu_sr_t, t1, 31);
+ tcg_temp_free(t1);
+ tcg_gen_mov_i32(REG(B11_8), t0);
+ tcg_temp_free(t0);
+ }
+ return;
+ case 0x2008: /* tst Rm,Rn */
+ {
+ TCGv val = tcg_temp_new();
+ tcg_gen_and_i32(val, REG(B7_4), REG(B11_8));
+ tcg_gen_setcondi_i32(TCG_COND_EQ, cpu_sr_t, val, 0);
+ tcg_temp_free(val);
+ }
+ return;
+ case 0x200a: /* xor Rm,Rn */
+ tcg_gen_xor_i32(REG(B11_8), REG(B11_8), REG(B7_4));
+ return;
+ case 0xf00c: /* fmov {F,D,X}Rm,{F,D,X}Rn - FPSCR: Nothing */
+ CHECK_FPU_ENABLED
+ if (ctx->flags & FPSCR_SZ) {
+ TCGv_i64 fp = tcg_temp_new_i64();
+ gen_load_fpr64(fp, XREG(B7_4));
+ gen_store_fpr64(fp, XREG(B11_8));
+ tcg_temp_free_i64(fp);
+ } else {
+ tcg_gen_mov_i32(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B7_4)]);
+ }
+ return;
+ case 0xf00a: /* fmov {F,D,X}Rm,@Rn - FPSCR: Nothing */
+ CHECK_FPU_ENABLED
+ if (ctx->flags & FPSCR_SZ) {
+ TCGv addr_hi = tcg_temp_new();
+ int fr = XREG(B7_4);
+ tcg_gen_addi_i32(addr_hi, REG(B11_8), 4);
+ tcg_gen_qemu_st_i32(cpu_fregs[fr], REG(B11_8),
+ ctx->memidx, MO_TEUL);
+ tcg_gen_qemu_st_i32(cpu_fregs[fr+1], addr_hi,
+ ctx->memidx, MO_TEUL);
+ tcg_temp_free(addr_hi);
+ } else {
+ tcg_gen_qemu_st_i32(cpu_fregs[FREG(B7_4)], REG(B11_8),
+ ctx->memidx, MO_TEUL);
+ }
+ return;
+ case 0xf008: /* fmov @Rm,{F,D,X}Rn - FPSCR: Nothing */
+ CHECK_FPU_ENABLED
+ if (ctx->flags & FPSCR_SZ) {
+ TCGv addr_hi = tcg_temp_new();
+ int fr = XREG(B11_8);
+ tcg_gen_addi_i32(addr_hi, REG(B7_4), 4);
+ tcg_gen_qemu_ld_i32(cpu_fregs[fr], REG(B7_4), ctx->memidx, MO_TEUL);
+ tcg_gen_qemu_ld_i32(cpu_fregs[fr+1], addr_hi, ctx->memidx, MO_TEUL);
+ tcg_temp_free(addr_hi);
+ } else {
+ tcg_gen_qemu_ld_i32(cpu_fregs[FREG(B11_8)], REG(B7_4),
+ ctx->memidx, MO_TEUL);
+ }
+ return;
+ case 0xf009: /* fmov @Rm+,{F,D,X}Rn - FPSCR: Nothing */
+ CHECK_FPU_ENABLED
+ if (ctx->flags & FPSCR_SZ) {
+ TCGv addr_hi = tcg_temp_new();
+ int fr = XREG(B11_8);
+ tcg_gen_addi_i32(addr_hi, REG(B7_4), 4);
+ tcg_gen_qemu_ld_i32(cpu_fregs[fr], REG(B7_4), ctx->memidx, MO_TEUL);
+ tcg_gen_qemu_ld_i32(cpu_fregs[fr+1], addr_hi, ctx->memidx, MO_TEUL);
+ tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 8);
+ tcg_temp_free(addr_hi);
+ } else {
+ tcg_gen_qemu_ld_i32(cpu_fregs[FREG(B11_8)], REG(B7_4),
+ ctx->memidx, MO_TEUL);
+ tcg_gen_addi_i32(REG(B7_4), REG(B7_4), 4);
+ }
+ return;
+ case 0xf00b: /* fmov {F,D,X}Rm,@-Rn - FPSCR: Nothing */
+ CHECK_FPU_ENABLED
+ TCGv addr = tcg_temp_new_i32();
+ tcg_gen_subi_i32(addr, REG(B11_8), 4);
+ if (ctx->flags & FPSCR_SZ) {
+ int fr = XREG(B7_4);
+ tcg_gen_qemu_st_i32(cpu_fregs[fr+1], addr, ctx->memidx, MO_TEUL);
+ tcg_gen_subi_i32(addr, addr, 4);
+ tcg_gen_qemu_st_i32(cpu_fregs[fr], addr, ctx->memidx, MO_TEUL);
+ } else {
+ tcg_gen_qemu_st_i32(cpu_fregs[FREG(B7_4)], addr,
+ ctx->memidx, MO_TEUL);
+ }
+ tcg_gen_mov_i32(REG(B11_8), addr);
+ tcg_temp_free(addr);
+ return;
+ case 0xf006: /* fmov @(R0,Rm),{F,D,X}Rm - FPSCR: Nothing */
+ CHECK_FPU_ENABLED
+ {
+ TCGv addr = tcg_temp_new_i32();
+ tcg_gen_add_i32(addr, REG(B7_4), REG(0));
+ if (ctx->flags & FPSCR_SZ) {
+ int fr = XREG(B11_8);
+ tcg_gen_qemu_ld_i32(cpu_fregs[fr], addr,
+ ctx->memidx, MO_TEUL);
+ tcg_gen_addi_i32(addr, addr, 4);
+ tcg_gen_qemu_ld_i32(cpu_fregs[fr+1], addr,
+ ctx->memidx, MO_TEUL);
+ } else {
+ tcg_gen_qemu_ld_i32(cpu_fregs[FREG(B11_8)], addr,
+ ctx->memidx, MO_TEUL);
+ }
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0xf007: /* fmov {F,D,X}Rn,@(R0,Rn) - FPSCR: Nothing */
+ CHECK_FPU_ENABLED
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_add_i32(addr, REG(B11_8), REG(0));
+ if (ctx->flags & FPSCR_SZ) {
+ int fr = XREG(B7_4);
+ tcg_gen_qemu_ld_i32(cpu_fregs[fr], addr,
+ ctx->memidx, MO_TEUL);
+ tcg_gen_addi_i32(addr, addr, 4);
+ tcg_gen_qemu_ld_i32(cpu_fregs[fr+1], addr,
+ ctx->memidx, MO_TEUL);
+ } else {
+ tcg_gen_qemu_st_i32(cpu_fregs[FREG(B7_4)], addr,
+ ctx->memidx, MO_TEUL);
+ }
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0xf000: /* fadd Rm,Rn - FPSCR: R[PR,Enable.O/U/I]/W[Cause,Flag] */
+ case 0xf001: /* fsub Rm,Rn - FPSCR: R[PR,Enable.O/U/I]/W[Cause,Flag] */
+ case 0xf002: /* fmul Rm,Rn - FPSCR: R[PR,Enable.O/U/I]/W[Cause,Flag] */
+ case 0xf003: /* fdiv Rm,Rn - FPSCR: R[PR,Enable.O/U/I]/W[Cause,Flag] */
+ case 0xf004: /* fcmp/eq Rm,Rn - FPSCR: R[PR,Enable.V]/W[Cause,Flag] */
+ case 0xf005: /* fcmp/gt Rm,Rn - FPSCR: R[PR,Enable.V]/W[Cause,Flag] */
+ {
+ CHECK_FPU_ENABLED
+ if (ctx->flags & FPSCR_PR) {
+ TCGv_i64 fp0, fp1;
+
+ if (ctx->opcode & 0x0110)
+ break; /* illegal instruction */
+ fp0 = tcg_temp_new_i64();
+ fp1 = tcg_temp_new_i64();
+ gen_load_fpr64(fp0, DREG(B11_8));
+ gen_load_fpr64(fp1, DREG(B7_4));
+ switch (ctx->opcode & 0xf00f) {
+ case 0xf000: /* fadd Rm,Rn */
+ gen_helper_fadd_DT(fp0, cpu_env, fp0, fp1);
+ break;
+ case 0xf001: /* fsub Rm,Rn */
+ gen_helper_fsub_DT(fp0, cpu_env, fp0, fp1);
+ break;
+ case 0xf002: /* fmul Rm,Rn */
+ gen_helper_fmul_DT(fp0, cpu_env, fp0, fp1);
+ break;
+ case 0xf003: /* fdiv Rm,Rn */
+ gen_helper_fdiv_DT(fp0, cpu_env, fp0, fp1);
+ break;
+ case 0xf004: /* fcmp/eq Rm,Rn */
+ gen_helper_fcmp_eq_DT(cpu_env, fp0, fp1);
+ return;
+ case 0xf005: /* fcmp/gt Rm,Rn */
+ gen_helper_fcmp_gt_DT(cpu_env, fp0, fp1);
+ return;
+ }
+ gen_store_fpr64(fp0, DREG(B11_8));
+ tcg_temp_free_i64(fp0);
+ tcg_temp_free_i64(fp1);
+ } else {
+ switch (ctx->opcode & 0xf00f) {
+ case 0xf000: /* fadd Rm,Rn */
+ gen_helper_fadd_FT(cpu_fregs[FREG(B11_8)], cpu_env,
+ cpu_fregs[FREG(B11_8)],
+ cpu_fregs[FREG(B7_4)]);
+ break;
+ case 0xf001: /* fsub Rm,Rn */
+ gen_helper_fsub_FT(cpu_fregs[FREG(B11_8)], cpu_env,
+ cpu_fregs[FREG(B11_8)],
+ cpu_fregs[FREG(B7_4)]);
+ break;
+ case 0xf002: /* fmul Rm,Rn */
+ gen_helper_fmul_FT(cpu_fregs[FREG(B11_8)], cpu_env,
+ cpu_fregs[FREG(B11_8)],
+ cpu_fregs[FREG(B7_4)]);
+ break;
+ case 0xf003: /* fdiv Rm,Rn */
+ gen_helper_fdiv_FT(cpu_fregs[FREG(B11_8)], cpu_env,
+ cpu_fregs[FREG(B11_8)],
+ cpu_fregs[FREG(B7_4)]);
+ break;
+ case 0xf004: /* fcmp/eq Rm,Rn */
+ gen_helper_fcmp_eq_FT(cpu_env, cpu_fregs[FREG(B11_8)],
+ cpu_fregs[FREG(B7_4)]);
+ return;
+ case 0xf005: /* fcmp/gt Rm,Rn */
+ gen_helper_fcmp_gt_FT(cpu_env, cpu_fregs[FREG(B11_8)],
+ cpu_fregs[FREG(B7_4)]);
+ return;
+ }
+ }
+ }
+ return;
+ case 0xf00e: /* fmac FR0,RM,Rn */
+ {
+ CHECK_FPU_ENABLED
+ if (ctx->flags & FPSCR_PR) {
+ break; /* illegal instruction */
+ } else {
+ gen_helper_fmac_FT(cpu_fregs[FREG(B11_8)], cpu_env,
+ cpu_fregs[FREG(0)], cpu_fregs[FREG(B7_4)],
+ cpu_fregs[FREG(B11_8)]);
+ return;
+ }
+ }
+ }
+
+ switch (ctx->opcode & 0xff00) {
+ case 0xc900: /* and #imm,R0 */
+ tcg_gen_andi_i32(REG(0), REG(0), B7_0);
+ return;
+ case 0xcd00: /* and.b #imm,@(R0,GBR) */
+ {
+ TCGv addr, val;
+ addr = tcg_temp_new();
+ tcg_gen_add_i32(addr, REG(0), cpu_gbr);
+ val = tcg_temp_new();
+ tcg_gen_qemu_ld_i32(val, addr, ctx->memidx, MO_UB);
+ tcg_gen_andi_i32(val, val, B7_0);
+ tcg_gen_qemu_st_i32(val, addr, ctx->memidx, MO_UB);
+ tcg_temp_free(val);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0x8b00: /* bf label */
+ CHECK_NOT_DELAY_SLOT
+ gen_conditional_jump(ctx, ctx->pc + 2,
+ ctx->pc + 4 + B7_0s * 2);
+ ctx->bstate = BS_BRANCH;
+ return;
+ case 0x8f00: /* bf/s label */
+ CHECK_NOT_DELAY_SLOT
+ gen_branch_slot(ctx->delayed_pc = ctx->pc + 4 + B7_0s * 2, 0);
+ ctx->flags |= DELAY_SLOT_CONDITIONAL;
+ return;
+ case 0x8900: /* bt label */
+ CHECK_NOT_DELAY_SLOT
+ gen_conditional_jump(ctx, ctx->pc + 4 + B7_0s * 2,
+ ctx->pc + 2);
+ ctx->bstate = BS_BRANCH;
+ return;
+ case 0x8d00: /* bt/s label */
+ CHECK_NOT_DELAY_SLOT
+ gen_branch_slot(ctx->delayed_pc = ctx->pc + 4 + B7_0s * 2, 1);
+ ctx->flags |= DELAY_SLOT_CONDITIONAL;
+ return;
+ case 0x8800: /* cmp/eq #imm,R0 */
+ tcg_gen_setcondi_i32(TCG_COND_EQ, cpu_sr_t, REG(0), B7_0s);
+ return;
+ case 0xc400: /* mov.b @(disp,GBR),R0 */
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_addi_i32(addr, cpu_gbr, B7_0);
+ tcg_gen_qemu_ld_i32(REG(0), addr, ctx->memidx, MO_SB);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0xc500: /* mov.w @(disp,GBR),R0 */
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_addi_i32(addr, cpu_gbr, B7_0 * 2);
+ tcg_gen_qemu_ld_i32(REG(0), addr, ctx->memidx, MO_TESW);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0xc600: /* mov.l @(disp,GBR),R0 */
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_addi_i32(addr, cpu_gbr, B7_0 * 4);
+ tcg_gen_qemu_ld_i32(REG(0), addr, ctx->memidx, MO_TESL);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0xc000: /* mov.b R0,@(disp,GBR) */
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_addi_i32(addr, cpu_gbr, B7_0);
+ tcg_gen_qemu_st_i32(REG(0), addr, ctx->memidx, MO_UB);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0xc100: /* mov.w R0,@(disp,GBR) */
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_addi_i32(addr, cpu_gbr, B7_0 * 2);
+ tcg_gen_qemu_st_i32(REG(0), addr, ctx->memidx, MO_TEUW);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0xc200: /* mov.l R0,@(disp,GBR) */
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_addi_i32(addr, cpu_gbr, B7_0 * 4);
+ tcg_gen_qemu_st_i32(REG(0), addr, ctx->memidx, MO_TEUL);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0x8000: /* mov.b R0,@(disp,Rn) */
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_addi_i32(addr, REG(B7_4), B3_0);
+ tcg_gen_qemu_st_i32(REG(0), addr, ctx->memidx, MO_UB);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0x8100: /* mov.w R0,@(disp,Rn) */
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_addi_i32(addr, REG(B7_4), B3_0 * 2);
+ tcg_gen_qemu_st_i32(REG(0), addr, ctx->memidx, MO_TEUW);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0x8400: /* mov.b @(disp,Rn),R0 */
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_addi_i32(addr, REG(B7_4), B3_0);
+ tcg_gen_qemu_ld_i32(REG(0), addr, ctx->memidx, MO_SB);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0x8500: /* mov.w @(disp,Rn),R0 */
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_addi_i32(addr, REG(B7_4), B3_0 * 2);
+ tcg_gen_qemu_ld_i32(REG(0), addr, ctx->memidx, MO_TESW);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0xc700: /* mova @(disp,PC),R0 */
+ tcg_gen_movi_i32(REG(0), ((ctx->pc & 0xfffffffc) + 4 + B7_0 * 4) & ~3);
+ return;
+ case 0xcb00: /* or #imm,R0 */
+ tcg_gen_ori_i32(REG(0), REG(0), B7_0);
+ return;
+ case 0xcf00: /* or.b #imm,@(R0,GBR) */
+ {
+ TCGv addr, val;
+ addr = tcg_temp_new();
+ tcg_gen_add_i32(addr, REG(0), cpu_gbr);
+ val = tcg_temp_new();
+ tcg_gen_qemu_ld_i32(val, addr, ctx->memidx, MO_UB);
+ tcg_gen_ori_i32(val, val, B7_0);
+ tcg_gen_qemu_st_i32(val, addr, ctx->memidx, MO_UB);
+ tcg_temp_free(val);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0xc300: /* trapa #imm */
+ {
+ TCGv imm;
+ CHECK_NOT_DELAY_SLOT
+ tcg_gen_movi_i32(cpu_pc, ctx->pc);
+ imm = tcg_const_i32(B7_0);
+ gen_helper_trapa(cpu_env, imm);
+ tcg_temp_free(imm);
+ ctx->bstate = BS_BRANCH;
+ }
+ return;
+ case 0xc800: /* tst #imm,R0 */
+ {
+ TCGv val = tcg_temp_new();
+ tcg_gen_andi_i32(val, REG(0), B7_0);
+ tcg_gen_setcondi_i32(TCG_COND_EQ, cpu_sr_t, val, 0);
+ tcg_temp_free(val);
+ }
+ return;
+ case 0xcc00: /* tst.b #imm,@(R0,GBR) */
+ {
+ TCGv val = tcg_temp_new();
+ tcg_gen_add_i32(val, REG(0), cpu_gbr);
+ tcg_gen_qemu_ld_i32(val, val, ctx->memidx, MO_UB);
+ tcg_gen_andi_i32(val, val, B7_0);
+ tcg_gen_setcondi_i32(TCG_COND_EQ, cpu_sr_t, val, 0);
+ tcg_temp_free(val);
+ }
+ return;
+ case 0xca00: /* xor #imm,R0 */
+ tcg_gen_xori_i32(REG(0), REG(0), B7_0);
+ return;
+ case 0xce00: /* xor.b #imm,@(R0,GBR) */
+ {
+ TCGv addr, val;
+ addr = tcg_temp_new();
+ tcg_gen_add_i32(addr, REG(0), cpu_gbr);
+ val = tcg_temp_new();
+ tcg_gen_qemu_ld_i32(val, addr, ctx->memidx, MO_UB);
+ tcg_gen_xori_i32(val, val, B7_0);
+ tcg_gen_qemu_st_i32(val, addr, ctx->memidx, MO_UB);
+ tcg_temp_free(val);
+ tcg_temp_free(addr);
+ }
+ return;
+ }
+
+ switch (ctx->opcode & 0xf08f) {
+ case 0x408e: /* ldc Rm,Rn_BANK */
+ CHECK_PRIVILEGED
+ tcg_gen_mov_i32(ALTREG(B6_4), REG(B11_8));
+ return;
+ case 0x4087: /* ldc.l @Rm+,Rn_BANK */
+ CHECK_PRIVILEGED
+ tcg_gen_qemu_ld_i32(ALTREG(B6_4), REG(B11_8), ctx->memidx, MO_TESL);
+ tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4);
+ return;
+ case 0x0082: /* stc Rm_BANK,Rn */
+ CHECK_PRIVILEGED
+ tcg_gen_mov_i32(REG(B11_8), ALTREG(B6_4));
+ return;
+ case 0x4083: /* stc.l Rm_BANK,@-Rn */
+ CHECK_PRIVILEGED
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_subi_i32(addr, REG(B11_8), 4);
+ tcg_gen_qemu_st_i32(ALTREG(B6_4), addr, ctx->memidx, MO_TEUL);
+ tcg_gen_mov_i32(REG(B11_8), addr);
+ tcg_temp_free(addr);
+ }
+ return;
+ }
+
+ switch (ctx->opcode & 0xf0ff) {
+ case 0x0023: /* braf Rn */
+ CHECK_NOT_DELAY_SLOT
+ tcg_gen_addi_i32(cpu_delayed_pc, REG(B11_8), ctx->pc + 4);
+ ctx->flags |= DELAY_SLOT;
+ ctx->delayed_pc = (uint32_t) - 1;
+ return;
+ case 0x0003: /* bsrf Rn */
+ CHECK_NOT_DELAY_SLOT
+ tcg_gen_movi_i32(cpu_pr, ctx->pc + 4);
+ tcg_gen_add_i32(cpu_delayed_pc, REG(B11_8), cpu_pr);
+ ctx->flags |= DELAY_SLOT;
+ ctx->delayed_pc = (uint32_t) - 1;
+ return;
+ case 0x4015: /* cmp/pl Rn */
+ tcg_gen_setcondi_i32(TCG_COND_GT, cpu_sr_t, REG(B11_8), 0);
+ return;
+ case 0x4011: /* cmp/pz Rn */
+ tcg_gen_setcondi_i32(TCG_COND_GE, cpu_sr_t, REG(B11_8), 0);
+ return;
+ case 0x4010: /* dt Rn */
+ tcg_gen_subi_i32(REG(B11_8), REG(B11_8), 1);
+ tcg_gen_setcondi_i32(TCG_COND_EQ, cpu_sr_t, REG(B11_8), 0);
+ return;
+ case 0x402b: /* jmp @Rn */
+ CHECK_NOT_DELAY_SLOT
+ tcg_gen_mov_i32(cpu_delayed_pc, REG(B11_8));
+ ctx->flags |= DELAY_SLOT;
+ ctx->delayed_pc = (uint32_t) - 1;
+ return;
+ case 0x400b: /* jsr @Rn */
+ CHECK_NOT_DELAY_SLOT
+ tcg_gen_movi_i32(cpu_pr, ctx->pc + 4);
+ tcg_gen_mov_i32(cpu_delayed_pc, REG(B11_8));
+ ctx->flags |= DELAY_SLOT;
+ ctx->delayed_pc = (uint32_t) - 1;
+ return;
+ case 0x400e: /* ldc Rm,SR */
+ CHECK_PRIVILEGED
+ {
+ TCGv val = tcg_temp_new();
+ tcg_gen_andi_i32(val, REG(B11_8), 0x700083f3);
+ gen_write_sr(val);
+ tcg_temp_free(val);
+ ctx->bstate = BS_STOP;
+ }
+ return;
+ case 0x4007: /* ldc.l @Rm+,SR */
+ CHECK_PRIVILEGED
+ {
+ TCGv val = tcg_temp_new();
+ tcg_gen_qemu_ld_i32(val, REG(B11_8), ctx->memidx, MO_TESL);
+ tcg_gen_andi_i32(val, val, 0x700083f3);
+ gen_write_sr(val);
+ tcg_temp_free(val);
+ tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4);
+ ctx->bstate = BS_STOP;
+ }
+ return;
+ case 0x0002: /* stc SR,Rn */
+ CHECK_PRIVILEGED
+ gen_read_sr(REG(B11_8));
+ return;
+ case 0x4003: /* stc SR,@-Rn */
+ CHECK_PRIVILEGED
+ {
+ TCGv addr = tcg_temp_new();
+ TCGv val = tcg_temp_new();
+ tcg_gen_subi_i32(addr, REG(B11_8), 4);
+ gen_read_sr(val);
+ tcg_gen_qemu_st_i32(val, addr, ctx->memidx, MO_TEUL);
+ tcg_gen_mov_i32(REG(B11_8), addr);
+ tcg_temp_free(val);
+ tcg_temp_free(addr);
+ }
+ return;
+#define LD(reg,ldnum,ldpnum,prechk) \
+ case ldnum: \
+ prechk \
+ tcg_gen_mov_i32 (cpu_##reg, REG(B11_8)); \
+ return; \
+ case ldpnum: \
+ prechk \
+ tcg_gen_qemu_ld_i32(cpu_##reg, REG(B11_8), ctx->memidx, MO_TESL); \
+ tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4); \
+ return;
+#define ST(reg,stnum,stpnum,prechk) \
+ case stnum: \
+ prechk \
+ tcg_gen_mov_i32 (REG(B11_8), cpu_##reg); \
+ return; \
+ case stpnum: \
+ prechk \
+ { \
+ TCGv addr = tcg_temp_new(); \
+ tcg_gen_subi_i32(addr, REG(B11_8), 4); \
+ tcg_gen_qemu_st_i32(cpu_##reg, addr, ctx->memidx, MO_TEUL); \
+ tcg_gen_mov_i32(REG(B11_8), addr); \
+ tcg_temp_free(addr); \
+ } \
+ return;
+#define LDST(reg,ldnum,ldpnum,stnum,stpnum,prechk) \
+ LD(reg,ldnum,ldpnum,prechk) \
+ ST(reg,stnum,stpnum,prechk)
+ LDST(gbr, 0x401e, 0x4017, 0x0012, 0x4013, {})
+ LDST(vbr, 0x402e, 0x4027, 0x0022, 0x4023, CHECK_PRIVILEGED)
+ LDST(ssr, 0x403e, 0x4037, 0x0032, 0x4033, CHECK_PRIVILEGED)
+ LDST(spc, 0x404e, 0x4047, 0x0042, 0x4043, CHECK_PRIVILEGED)
+ ST(sgr, 0x003a, 0x4032, CHECK_PRIVILEGED)
+ LD(sgr, 0x403a, 0x4036, CHECK_PRIVILEGED if (!(ctx->features & SH_FEATURE_SH4A)) break;)
+ LDST(dbr, 0x40fa, 0x40f6, 0x00fa, 0x40f2, CHECK_PRIVILEGED)
+ LDST(mach, 0x400a, 0x4006, 0x000a, 0x4002, {})
+ LDST(macl, 0x401a, 0x4016, 0x001a, 0x4012, {})
+ LDST(pr, 0x402a, 0x4026, 0x002a, 0x4022, {})
+ LDST(fpul, 0x405a, 0x4056, 0x005a, 0x4052, {CHECK_FPU_ENABLED})
+ case 0x406a: /* lds Rm,FPSCR */
+ CHECK_FPU_ENABLED
+ gen_helper_ld_fpscr(cpu_env, REG(B11_8));
+ ctx->bstate = BS_STOP;
+ return;
+ case 0x4066: /* lds.l @Rm+,FPSCR */
+ CHECK_FPU_ENABLED
+ {
+ TCGv addr = tcg_temp_new();
+ tcg_gen_qemu_ld_i32(addr, REG(B11_8), ctx->memidx, MO_TESL);
+ tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4);
+ gen_helper_ld_fpscr(cpu_env, addr);
+ tcg_temp_free(addr);
+ ctx->bstate = BS_STOP;
+ }
+ return;
+ case 0x006a: /* sts FPSCR,Rn */
+ CHECK_FPU_ENABLED
+ tcg_gen_andi_i32(REG(B11_8), cpu_fpscr, 0x003fffff);
+ return;
+ case 0x4062: /* sts FPSCR,@-Rn */
+ CHECK_FPU_ENABLED
+ {
+ TCGv addr, val;
+ val = tcg_temp_new();
+ tcg_gen_andi_i32(val, cpu_fpscr, 0x003fffff);
+ addr = tcg_temp_new();
+ tcg_gen_subi_i32(addr, REG(B11_8), 4);
+ tcg_gen_qemu_st_i32(val, addr, ctx->memidx, MO_TEUL);
+ tcg_gen_mov_i32(REG(B11_8), addr);
+ tcg_temp_free(addr);
+ tcg_temp_free(val);
+ }
+ return;
+ case 0x00c3: /* movca.l R0,@Rm */
+ {
+ TCGv val = tcg_temp_new();
+ tcg_gen_qemu_ld_i32(val, REG(B11_8), ctx->memidx, MO_TEUL);
+ gen_helper_movcal(cpu_env, REG(B11_8), val);
+ tcg_gen_qemu_st_i32(REG(0), REG(B11_8), ctx->memidx, MO_TEUL);
+ }
+ ctx->has_movcal = 1;
+ return;
+ case 0x40a9:
+ /* MOVUA.L @Rm,R0 (Rm) -> R0
+ Load non-boundary-aligned data */
+ tcg_gen_qemu_ld_i32(REG(0), REG(B11_8), ctx->memidx, MO_TEUL);
+ return;
+ case 0x40e9:
+ /* MOVUA.L @Rm+,R0 (Rm) -> R0, Rm + 4 -> Rm
+ Load non-boundary-aligned data */
+ tcg_gen_qemu_ld_i32(REG(0), REG(B11_8), ctx->memidx, MO_TEUL);
+ tcg_gen_addi_i32(REG(B11_8), REG(B11_8), 4);
+ return;
+ case 0x0029: /* movt Rn */
+ tcg_gen_mov_i32(REG(B11_8), cpu_sr_t);
+ return;
+ case 0x0073:
+ /* MOVCO.L
+ LDST -> T
+ If (T == 1) R0 -> (Rn)
+ 0 -> LDST
+ */
+ if (ctx->features & SH_FEATURE_SH4A) {
+ TCGLabel *label = gen_new_label();
+ tcg_gen_mov_i32(cpu_sr_t, cpu_ldst);
+ tcg_gen_brcondi_i32(TCG_COND_EQ, cpu_ldst, 0, label);
+ tcg_gen_qemu_st_i32(REG(0), REG(B11_8), ctx->memidx, MO_TEUL);
+ gen_set_label(label);
+ tcg_gen_movi_i32(cpu_ldst, 0);
+ return;
+ } else
+ break;
+ case 0x0063:
+ /* MOVLI.L @Rm,R0
+ 1 -> LDST
+ (Rm) -> R0
+ When interrupt/exception
+ occurred 0 -> LDST
+ */
+ if (ctx->features & SH_FEATURE_SH4A) {
+ tcg_gen_movi_i32(cpu_ldst, 0);
+ tcg_gen_qemu_ld_i32(REG(0), REG(B11_8), ctx->memidx, MO_TESL);
+ tcg_gen_movi_i32(cpu_ldst, 1);
+ return;
+ } else
+ break;
+ case 0x0093: /* ocbi @Rn */
+ {
+ gen_helper_ocbi(cpu_env, REG(B11_8));
+ }
+ return;
+ case 0x00a3: /* ocbp @Rn */
+ case 0x00b3: /* ocbwb @Rn */
+ /* These instructions are supposed to do nothing in case of
+ a cache miss. Given that we only partially emulate caches
+ it is safe to simply ignore them. */
+ return;
+ case 0x0083: /* pref @Rn */
+ return;
+ case 0x00d3: /* prefi @Rn */
+ if (ctx->features & SH_FEATURE_SH4A)
+ return;
+ else
+ break;
+ case 0x00e3: /* icbi @Rn */
+ if (ctx->features & SH_FEATURE_SH4A)
+ return;
+ else
+ break;
+ case 0x00ab: /* synco */
+ if (ctx->features & SH_FEATURE_SH4A)
+ return;
+ else
+ break;
+ case 0x4024: /* rotcl Rn */
+ {
+ TCGv tmp = tcg_temp_new();
+ tcg_gen_mov_i32(tmp, cpu_sr_t);
+ tcg_gen_shri_i32(cpu_sr_t, REG(B11_8), 31);
+ tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 1);
+ tcg_gen_or_i32(REG(B11_8), REG(B11_8), tmp);
+ tcg_temp_free(tmp);
+ }
+ return;
+ case 0x4025: /* rotcr Rn */
+ {
+ TCGv tmp = tcg_temp_new();
+ tcg_gen_shli_i32(tmp, cpu_sr_t, 31);
+ tcg_gen_andi_i32(cpu_sr_t, REG(B11_8), 1);
+ tcg_gen_shri_i32(REG(B11_8), REG(B11_8), 1);
+ tcg_gen_or_i32(REG(B11_8), REG(B11_8), tmp);
+ tcg_temp_free(tmp);
+ }
+ return;
+ case 0x4004: /* rotl Rn */
+ tcg_gen_rotli_i32(REG(B11_8), REG(B11_8), 1);
+ tcg_gen_andi_i32(cpu_sr_t, REG(B11_8), 0);
+ return;
+ case 0x4005: /* rotr Rn */
+ tcg_gen_andi_i32(cpu_sr_t, REG(B11_8), 0);
+ tcg_gen_rotri_i32(REG(B11_8), REG(B11_8), 1);
+ return;
+ case 0x4000: /* shll Rn */
+ case 0x4020: /* shal Rn */
+ tcg_gen_shri_i32(cpu_sr_t, REG(B11_8), 31);
+ tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 1);
+ return;
+ case 0x4021: /* shar Rn */
+ tcg_gen_andi_i32(cpu_sr_t, REG(B11_8), 1);
+ tcg_gen_sari_i32(REG(B11_8), REG(B11_8), 1);
+ return;
+ case 0x4001: /* shlr Rn */
+ tcg_gen_andi_i32(cpu_sr_t, REG(B11_8), 1);
+ tcg_gen_shri_i32(REG(B11_8), REG(B11_8), 1);
+ return;
+ case 0x4008: /* shll2 Rn */
+ tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 2);
+ return;
+ case 0x4018: /* shll8 Rn */
+ tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 8);
+ return;
+ case 0x4028: /* shll16 Rn */
+ tcg_gen_shli_i32(REG(B11_8), REG(B11_8), 16);
+ return;
+ case 0x4009: /* shlr2 Rn */
+ tcg_gen_shri_i32(REG(B11_8), REG(B11_8), 2);
+ return;
+ case 0x4019: /* shlr8 Rn */
+ tcg_gen_shri_i32(REG(B11_8), REG(B11_8), 8);
+ return;
+ case 0x4029: /* shlr16 Rn */
+ tcg_gen_shri_i32(REG(B11_8), REG(B11_8), 16);
+ return;
+ case 0x401b: /* tas.b @Rn */
+ {
+ TCGv addr, val;
+ addr = tcg_temp_local_new();
+ tcg_gen_mov_i32(addr, REG(B11_8));
+ val = tcg_temp_local_new();
+ tcg_gen_qemu_ld_i32(val, addr, ctx->memidx, MO_UB);
+ tcg_gen_setcondi_i32(TCG_COND_EQ, cpu_sr_t, val, 0);
+ tcg_gen_ori_i32(val, val, 0x80);
+ tcg_gen_qemu_st_i32(val, addr, ctx->memidx, MO_UB);
+ tcg_temp_free(val);
+ tcg_temp_free(addr);
+ }
+ return;
+ case 0xf00d: /* fsts FPUL,FRn - FPSCR: Nothing */
+ CHECK_FPU_ENABLED
+ tcg_gen_mov_i32(cpu_fregs[FREG(B11_8)], cpu_fpul);
+ return;
+ case 0xf01d: /* flds FRm,FPUL - FPSCR: Nothing */
+ CHECK_FPU_ENABLED
+ tcg_gen_mov_i32(cpu_fpul, cpu_fregs[FREG(B11_8)]);
+ return;
+ case 0xf02d: /* float FPUL,FRn/DRn - FPSCR: R[PR,Enable.I]/W[Cause,Flag] */
+ CHECK_FPU_ENABLED
+ if (ctx->flags & FPSCR_PR) {
+ TCGv_i64 fp;
+ if (ctx->opcode & 0x0100)
+ break; /* illegal instruction */
+ fp = tcg_temp_new_i64();
+ gen_helper_float_DT(fp, cpu_env, cpu_fpul);
+ gen_store_fpr64(fp, DREG(B11_8));
+ tcg_temp_free_i64(fp);
+ }
+ else {
+ gen_helper_float_FT(cpu_fregs[FREG(B11_8)], cpu_env, cpu_fpul);
+ }
+ return;
+ case 0xf03d: /* ftrc FRm/DRm,FPUL - FPSCR: R[PR,Enable.V]/W[Cause,Flag] */
+ CHECK_FPU_ENABLED
+ if (ctx->flags & FPSCR_PR) {
+ TCGv_i64 fp;
+ if (ctx->opcode & 0x0100)
+ break; /* illegal instruction */
+ fp = tcg_temp_new_i64();
+ gen_load_fpr64(fp, DREG(B11_8));
+ gen_helper_ftrc_DT(cpu_fpul, cpu_env, fp);
+ tcg_temp_free_i64(fp);
+ }
+ else {
+ gen_helper_ftrc_FT(cpu_fpul, cpu_env, cpu_fregs[FREG(B11_8)]);
+ }
+ return;
+ case 0xf04d: /* fneg FRn/DRn - FPSCR: Nothing */
+ CHECK_FPU_ENABLED
+ {
+ gen_helper_fneg_T(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)]);
+ }
+ return;
+ case 0xf05d: /* fabs FRn/DRn */
+ CHECK_FPU_ENABLED
+ if (ctx->flags & FPSCR_PR) {
+ if (ctx->opcode & 0x0100)
+ break; /* illegal instruction */
+ TCGv_i64 fp = tcg_temp_new_i64();
+ gen_load_fpr64(fp, DREG(B11_8));
+ gen_helper_fabs_DT(fp, fp);
+ gen_store_fpr64(fp, DREG(B11_8));
+ tcg_temp_free_i64(fp);
+ } else {
+ gen_helper_fabs_FT(cpu_fregs[FREG(B11_8)], cpu_fregs[FREG(B11_8)]);
+ }
+ return;
+ case 0xf06d: /* fsqrt FRn */
+ CHECK_FPU_ENABLED
+ if (ctx->flags & FPSCR_PR) {
+ if (ctx->opcode & 0x0100)
+ break; /* illegal instruction */
+ TCGv_i64 fp = tcg_temp_new_i64();
+ gen_load_fpr64(fp, DREG(B11_8));
+ gen_helper_fsqrt_DT(fp, cpu_env, fp);
+ gen_store_fpr64(fp, DREG(B11_8));
+ tcg_temp_free_i64(fp);
+ } else {
+ gen_helper_fsqrt_FT(cpu_fregs[FREG(B11_8)], cpu_env,
+ cpu_fregs[FREG(B11_8)]);
+ }
+ return;
+ case 0xf07d: /* fsrra FRn */
+ CHECK_FPU_ENABLED
+ break;
+ case 0xf08d: /* fldi0 FRn - FPSCR: R[PR] */
+ CHECK_FPU_ENABLED
+ if (!(ctx->flags & FPSCR_PR)) {
+ tcg_gen_movi_i32(cpu_fregs[FREG(B11_8)], 0);
+ }
+ return;
+ case 0xf09d: /* fldi1 FRn - FPSCR: R[PR] */
+ CHECK_FPU_ENABLED
+ if (!(ctx->flags & FPSCR_PR)) {
+ tcg_gen_movi_i32(cpu_fregs[FREG(B11_8)], 0x3f800000);
+ }
+ return;
+ case 0xf0ad: /* fcnvsd FPUL,DRn */
+ CHECK_FPU_ENABLED
+ {
+ TCGv_i64 fp = tcg_temp_new_i64();
+ gen_helper_fcnvsd_FT_DT(fp, cpu_env, cpu_fpul);
+ gen_store_fpr64(fp, DREG(B11_8));
+ tcg_temp_free_i64(fp);
+ }
+ return;
+ case 0xf0bd: /* fcnvds DRn,FPUL */
+ CHECK_FPU_ENABLED
+ {
+ TCGv_i64 fp = tcg_temp_new_i64();
+ gen_load_fpr64(fp, DREG(B11_8));
+ gen_helper_fcnvds_DT_FT(cpu_fpul, cpu_env, fp);
+ tcg_temp_free_i64(fp);
+ }
+ return;
+ case 0xf0ed: /* fipr FVm,FVn */
+ CHECK_FPU_ENABLED
+ if ((ctx->flags & FPSCR_PR) == 0) {
+ TCGv m, n;
+ m = tcg_const_i32((ctx->opcode >> 8) & 3);
+ n = tcg_const_i32((ctx->opcode >> 10) & 3);
+ gen_helper_fipr(cpu_env, m, n);
+ tcg_temp_free(m);
+ tcg_temp_free(n);
+ return;
+ }
+ break;
+ case 0xf0fd: /* ftrv XMTRX,FVn */
+ CHECK_FPU_ENABLED
+ if ((ctx->opcode & 0x0300) == 0x0100 &&
+ (ctx->flags & FPSCR_PR) == 0) {
+ TCGv n;
+ n = tcg_const_i32((ctx->opcode >> 10) & 3);
+ gen_helper_ftrv(cpu_env, n);
+ tcg_temp_free(n);
+ return;
+ }
+ break;
+ }
+#if 0
+ fprintf(stderr, "unknown instruction 0x%04x at pc 0x%08x\n",
+ ctx->opcode, ctx->pc);
+ fflush(stderr);
+#endif
+ tcg_gen_movi_i32(cpu_pc, ctx->pc);
+ if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) {
+ gen_helper_raise_slot_illegal_instruction(cpu_env);
+ } else {
+ gen_helper_raise_illegal_instruction(cpu_env);
+ }
+ ctx->bstate = BS_BRANCH;
+}
+
+static void decode_opc(DisasContext * ctx)
+{
+ uint32_t old_flags = ctx->flags;
+
+ _decode_opc(ctx);
+
+ if (old_flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL)) {
+ if (ctx->flags & DELAY_SLOT_CLEARME) {
+ gen_store_flags(0);
+ } else {
+ /* go out of the delay slot */
+ uint32_t new_flags = ctx->flags;
+ new_flags &= ~(DELAY_SLOT | DELAY_SLOT_CONDITIONAL);
+ gen_store_flags(new_flags);
+ }
+ ctx->flags = 0;
+ ctx->bstate = BS_BRANCH;
+ if (old_flags & DELAY_SLOT_CONDITIONAL) {
+ gen_delayed_conditional_jump(ctx);
+ } else if (old_flags & DELAY_SLOT) {
+ gen_jump(ctx);
+ }
+
+ }
+
+ /* go into a delay slot */
+ if (ctx->flags & (DELAY_SLOT | DELAY_SLOT_CONDITIONAL))
+ gen_store_flags(ctx->flags);
+}
+
+void gen_intermediate_code(CPUSH4State * env, struct TranslationBlock *tb)
+{
+ SuperHCPU *cpu = sh_env_get_cpu(env);
+ CPUState *cs = CPU(cpu);
+ DisasContext ctx;
+ target_ulong pc_start;
+ int num_insns;
+ int max_insns;
+
+ pc_start = tb->pc;
+ ctx.pc = pc_start;
+ ctx.flags = (uint32_t)tb->flags;
+ ctx.bstate = BS_NONE;
+ ctx.memidx = (ctx.flags & (1u << SR_MD)) == 0 ? 1 : 0;
+ /* We don't know if the delayed pc came from a dynamic or static branch,
+ so assume it is a dynamic branch. */
+ ctx.delayed_pc = -1; /* use delayed pc from env pointer */
+ ctx.tb = tb;
+ ctx.singlestep_enabled = cs->singlestep_enabled;
+ ctx.features = env->features;
+ ctx.has_movcal = (ctx.flags & TB_FLAG_PENDING_MOVCA);
+
+ num_insns = 0;
+ max_insns = tb->cflags & CF_COUNT_MASK;
+ if (max_insns == 0) {
+ max_insns = CF_COUNT_MASK;
+ }
+ if (max_insns > TCG_MAX_INSNS) {
+ max_insns = TCG_MAX_INSNS;
+ }
+
+ gen_tb_start(tb);
+ while (ctx.bstate == BS_NONE && !tcg_op_buf_full()) {
+ tcg_gen_insn_start(ctx.pc, ctx.flags);
+ num_insns++;
+
+ if (unlikely(cpu_breakpoint_test(cs, ctx.pc, BP_ANY))) {
+ /* We have hit a breakpoint - make sure PC is up-to-date */
+ tcg_gen_movi_i32(cpu_pc, ctx.pc);
+ gen_helper_debug(cpu_env);
+ ctx.bstate = BS_BRANCH;
+ /* The address covered by the breakpoint must be included in
+ [tb->pc, tb->pc + tb->size) in order to for it to be
+ properly cleared -- thus we increment the PC here so that
+ the logic setting tb->size below does the right thing. */
+ ctx.pc += 2;
+ break;
+ }
+
+ if (num_insns == max_insns && (tb->cflags & CF_LAST_IO)) {
+ gen_io_start();
+ }
+
+ ctx.opcode = cpu_lduw_code(env, ctx.pc);
+ decode_opc(&ctx);
+ ctx.pc += 2;
+ if ((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0)
+ break;
+ if (cs->singlestep_enabled) {
+ break;
+ }
+ if (num_insns >= max_insns)
+ break;
+ if (singlestep)
+ break;
+ }
+ if (tb->cflags & CF_LAST_IO)
+ gen_io_end();
+ if (cs->singlestep_enabled) {
+ tcg_gen_movi_i32(cpu_pc, ctx.pc);
+ gen_helper_debug(cpu_env);
+ } else {
+ switch (ctx.bstate) {
+ case BS_STOP:
+ /* gen_op_interrupt_restart(); */
+ /* fall through */
+ case BS_NONE:
+ if (ctx.flags) {
+ gen_store_flags(ctx.flags | DELAY_SLOT_CLEARME);
+ }
+ gen_goto_tb(&ctx, 0, ctx.pc);
+ break;
+ case BS_EXCP:
+ /* gen_op_interrupt_restart(); */
+ tcg_gen_exit_tb(0);
+ break;
+ case BS_BRANCH:
+ default:
+ break;
+ }
+ }
+
+ gen_tb_end(tb, num_insns);
+
+ tb->size = ctx.pc - pc_start;
+ tb->icount = num_insns;
+
+#ifdef DEBUG_DISAS
+ if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)
+ && qemu_log_in_addr_range(pc_start)) {
+ qemu_log_lock();
+ qemu_log("IN:\n"); /* , lookup_symbol(pc_start)); */
+ log_target_disas(cs, pc_start, ctx.pc - pc_start, 0);
+ qemu_log("\n");
+ qemu_log_unlock();
+ }
+#endif
+}
+
+void restore_state_to_opc(CPUSH4State *env, TranslationBlock *tb,
+ target_ulong *data)
+{
+ env->pc = data[0];
+ env->flags = data[1];
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-17 16:42:10 +0000