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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-moxie
parent82ecffa8c050bf5bbc13329e9b65eac1caa5b55c (diff)
downloadqemu-arm-fcf5ef2ab52c621a4617ebbef36bf43b4003f4c0.tar.gz
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-moxie')
-rw-r--r--target-moxie/Makefile.objs2
-rw-r--r--target-moxie/cpu.c192
-rw-r--r--target-moxie/cpu.h143
-rw-r--r--target-moxie/helper.c162
-rw-r--r--target-moxie/helper.h5
-rw-r--r--target-moxie/machine.c22
-rw-r--r--target-moxie/machine.h1
-rw-r--r--target-moxie/mmu.c33
-rw-r--r--target-moxie/mmu.h14
-rw-r--r--target-moxie/translate.c908
10 files changed, 0 insertions, 1482 deletions
diff --git a/target-moxie/Makefile.objs b/target-moxie/Makefile.objs
deleted file mode 100644
index 6381d4d636..0000000000
--- a/target-moxie/Makefile.objs
+++ /dev/null
@@ -1,2 +0,0 @@
-obj-y += translate.o helper.o machine.o cpu.o machine.o
-obj-$(CONFIG_SOFTMMU) += mmu.o
diff --git a/target-moxie/cpu.c b/target-moxie/cpu.c
deleted file mode 100644
index b0be4a7551..0000000000
--- a/target-moxie/cpu.c
+++ /dev/null
@@ -1,192 +0,0 @@
-/*
- * QEMU Moxie CPU
- *
- * Copyright (c) 2013 Anthony Green
- *
- * 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 General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "cpu.h"
-#include "qemu-common.h"
-#include "migration/vmstate.h"
-#include "machine.h"
-#include "exec/exec-all.h"
-
-static void moxie_cpu_set_pc(CPUState *cs, vaddr value)
-{
- MoxieCPU *cpu = MOXIE_CPU(cs);
-
- cpu->env.pc = value;
-}
-
-static bool moxie_cpu_has_work(CPUState *cs)
-{
- return cs->interrupt_request & CPU_INTERRUPT_HARD;
-}
-
-static void moxie_cpu_reset(CPUState *s)
-{
- MoxieCPU *cpu = MOXIE_CPU(s);
- MoxieCPUClass *mcc = MOXIE_CPU_GET_CLASS(cpu);
- CPUMoxieState *env = &cpu->env;
-
- mcc->parent_reset(s);
-
- memset(env, 0, sizeof(CPUMoxieState));
- env->pc = 0x1000;
-
- tlb_flush(s, 1);
-}
-
-static void moxie_cpu_disas_set_info(CPUState *cpu, disassemble_info *info)
-{
- info->mach = bfd_arch_moxie;
- info->print_insn = print_insn_moxie;
-}
-
-static void moxie_cpu_realizefn(DeviceState *dev, Error **errp)
-{
- CPUState *cs = CPU(dev);
- MoxieCPUClass *mcc = MOXIE_CPU_GET_CLASS(dev);
- Error *local_err = NULL;
-
- cpu_exec_realizefn(cs, &local_err);
- if (local_err != NULL) {
- error_propagate(errp, local_err);
- return;
- }
-
- qemu_init_vcpu(cs);
- cpu_reset(cs);
-
- mcc->parent_realize(dev, errp);
-}
-
-static void moxie_cpu_initfn(Object *obj)
-{
- CPUState *cs = CPU(obj);
- MoxieCPU *cpu = MOXIE_CPU(obj);
- static int inited;
-
- cs->env_ptr = &cpu->env;
-
- if (tcg_enabled() && !inited) {
- inited = 1;
- moxie_translate_init();
- }
-}
-
-static ObjectClass *moxie_cpu_class_by_name(const char *cpu_model)
-{
- ObjectClass *oc;
-
- if (cpu_model == NULL) {
- return NULL;
- }
-
- oc = object_class_by_name(cpu_model);
- if (oc != NULL && (!object_class_dynamic_cast(oc, TYPE_MOXIE_CPU) ||
- object_class_is_abstract(oc))) {
- return NULL;
- }
- return oc;
-}
-
-static void moxie_cpu_class_init(ObjectClass *oc, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(oc);
- CPUClass *cc = CPU_CLASS(oc);
- MoxieCPUClass *mcc = MOXIE_CPU_CLASS(oc);
-
- mcc->parent_realize = dc->realize;
- dc->realize = moxie_cpu_realizefn;
-
- mcc->parent_reset = cc->reset;
- cc->reset = moxie_cpu_reset;
-
- cc->class_by_name = moxie_cpu_class_by_name;
-
- cc->has_work = moxie_cpu_has_work;
- cc->do_interrupt = moxie_cpu_do_interrupt;
- cc->dump_state = moxie_cpu_dump_state;
- cc->set_pc = moxie_cpu_set_pc;
-#ifdef CONFIG_USER_ONLY
- cc->handle_mmu_fault = moxie_cpu_handle_mmu_fault;
-#else
- cc->get_phys_page_debug = moxie_cpu_get_phys_page_debug;
- cc->vmsd = &vmstate_moxie_cpu;
-#endif
- cc->disas_set_info = moxie_cpu_disas_set_info;
-}
-
-static void moxielite_initfn(Object *obj)
-{
- /* Set cpu feature flags */
-}
-
-static void moxie_any_initfn(Object *obj)
-{
- /* Set cpu feature flags */
-}
-
-typedef struct MoxieCPUInfo {
- const char *name;
- void (*initfn)(Object *obj);
-} MoxieCPUInfo;
-
-static const MoxieCPUInfo moxie_cpus[] = {
- { .name = "MoxieLite", .initfn = moxielite_initfn },
- { .name = "any", .initfn = moxie_any_initfn },
-};
-
-MoxieCPU *cpu_moxie_init(const char *cpu_model)
-{
- return MOXIE_CPU(cpu_generic_init(TYPE_MOXIE_CPU, cpu_model));
-}
-
-static void cpu_register(const MoxieCPUInfo *info)
-{
- TypeInfo type_info = {
- .parent = TYPE_MOXIE_CPU,
- .instance_size = sizeof(MoxieCPU),
- .instance_init = info->initfn,
- .class_size = sizeof(MoxieCPUClass),
- };
-
- type_info.name = g_strdup_printf("%s-" TYPE_MOXIE_CPU, info->name);
- type_register(&type_info);
- g_free((void *)type_info.name);
-}
-
-static const TypeInfo moxie_cpu_type_info = {
- .name = TYPE_MOXIE_CPU,
- .parent = TYPE_CPU,
- .instance_size = sizeof(MoxieCPU),
- .instance_init = moxie_cpu_initfn,
- .class_size = sizeof(MoxieCPUClass),
- .class_init = moxie_cpu_class_init,
-};
-
-static void moxie_cpu_register_types(void)
-{
- int i;
- type_register_static(&moxie_cpu_type_info);
- for (i = 0; i < ARRAY_SIZE(moxie_cpus); i++) {
- cpu_register(&moxie_cpus[i]);
- }
-}
-
-type_init(moxie_cpu_register_types)
diff --git a/target-moxie/cpu.h b/target-moxie/cpu.h
deleted file mode 100644
index 3e880facf4..0000000000
--- a/target-moxie/cpu.h
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * Moxie emulation
- *
- * Copyright (c) 2008, 2010, 2013 Anthony Green
- *
- * 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 General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef MOXIE_CPU_H
-#define MOXIE_CPU_H
-
-#include "qemu-common.h"
-
-#define TARGET_LONG_BITS 32
-
-#define CPUArchState struct CPUMoxieState
-
-#define MOXIE_EX_DIV0 0
-#define MOXIE_EX_BAD 1
-#define MOXIE_EX_IRQ 2
-#define MOXIE_EX_SWI 3
-#define MOXIE_EX_MMU_MISS 4
-#define MOXIE_EX_BREAK 16
-
-#include "exec/cpu-defs.h"
-#include "fpu/softfloat.h"
-
-#define TARGET_PAGE_BITS 12 /* 4k */
-
-#define TARGET_PHYS_ADDR_SPACE_BITS 32
-#define TARGET_VIRT_ADDR_SPACE_BITS 32
-
-#define NB_MMU_MODES 1
-
-typedef struct CPUMoxieState {
-
- uint32_t flags; /* general execution flags */
- uint32_t gregs[16]; /* general registers */
- uint32_t sregs[256]; /* special registers */
- uint32_t pc; /* program counter */
- /* Instead of saving the cc value, we save the cmp arguments
- and compute cc on demand. */
- uint32_t cc_a; /* reg a for condition code calculation */
- uint32_t cc_b; /* reg b for condition code calculation */
-
- void *irq[8];
-
- CPU_COMMON
-
-} CPUMoxieState;
-
-#include "qom/cpu.h"
-
-#define TYPE_MOXIE_CPU "moxie-cpu"
-
-#define MOXIE_CPU_CLASS(klass) \
- OBJECT_CLASS_CHECK(MoxieCPUClass, (klass), TYPE_MOXIE_CPU)
-#define MOXIE_CPU(obj) \
- OBJECT_CHECK(MoxieCPU, (obj), TYPE_MOXIE_CPU)
-#define MOXIE_CPU_GET_CLASS(obj) \
- OBJECT_GET_CLASS(MoxieCPUClass, (obj), TYPE_MOXIE_CPU)
-
-/**
- * MoxieCPUClass:
- * @parent_reset: The parent class' reset handler.
- *
- * A Moxie CPU model.
- */
-typedef struct MoxieCPUClass {
- /*< private >*/
- CPUClass parent_class;
- /*< public >*/
-
- DeviceRealize parent_realize;
- void (*parent_reset)(CPUState *cpu);
-} MoxieCPUClass;
-
-/**
- * MoxieCPU:
- * @env: #CPUMoxieState
- *
- * A Moxie CPU.
- */
-typedef struct MoxieCPU {
- /*< private >*/
- CPUState parent_obj;
- /*< public >*/
-
- CPUMoxieState env;
-} MoxieCPU;
-
-static inline MoxieCPU *moxie_env_get_cpu(CPUMoxieState *env)
-{
- return container_of(env, MoxieCPU, env);
-}
-
-#define ENV_GET_CPU(e) CPU(moxie_env_get_cpu(e))
-
-#define ENV_OFFSET offsetof(MoxieCPU, env)
-
-MoxieCPU *cpu_moxie_init(const char *cpu_model);
-void moxie_cpu_do_interrupt(CPUState *cs);
-void moxie_cpu_dump_state(CPUState *cpu, FILE *f,
- fprintf_function cpu_fprintf, int flags);
-hwaddr moxie_cpu_get_phys_page_debug(CPUState *cpu, vaddr addr);
-void moxie_translate_init(void);
-int cpu_moxie_signal_handler(int host_signum, void *pinfo,
- void *puc);
-
-#define cpu_init(cpu_model) CPU(cpu_moxie_init(cpu_model))
-
-#define cpu_signal_handler cpu_moxie_signal_handler
-
-static inline int cpu_mmu_index(CPUMoxieState *env, bool ifetch)
-{
- return 0;
-}
-
-#include "exec/cpu-all.h"
-
-static inline void cpu_get_tb_cpu_state(CPUMoxieState *env, target_ulong *pc,
- target_ulong *cs_base, uint32_t *flags)
-{
- *pc = env->pc;
- *cs_base = 0;
- *flags = 0;
-}
-
-int moxie_cpu_handle_mmu_fault(CPUState *cpu, vaddr address,
- int rw, int mmu_idx);
-
-#endif /* MOXIE_CPU_H */
diff --git a/target-moxie/helper.c b/target-moxie/helper.c
deleted file mode 100644
index 330299f5a7..0000000000
--- a/target-moxie/helper.c
+++ /dev/null
@@ -1,162 +0,0 @@
-/*
- * Moxie helper routines.
- *
- * Copyright (c) 2008, 2009, 2010, 2013 Anthony Green
- *
- * 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 General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "qemu/osdep.h"
-
-#include "cpu.h"
-#include "mmu.h"
-#include "exec/exec-all.h"
-#include "exec/cpu_ldst.h"
-#include "qemu/host-utils.h"
-#include "exec/helper-proto.h"
-
-/* Try to fill the TLB and return an exception if error. If retaddr is
- NULL, it means that the function was called in C code (i.e. not
- from generated code or from helper.c) */
-void tlb_fill(CPUState *cs, target_ulong addr, MMUAccessType access_type,
- int mmu_idx, uintptr_t retaddr)
-{
- int ret;
-
- ret = moxie_cpu_handle_mmu_fault(cs, addr, access_type, mmu_idx);
- if (unlikely(ret)) {
- if (retaddr) {
- cpu_restore_state(cs, retaddr);
- }
- }
- cpu_loop_exit(cs);
-}
-
-void helper_raise_exception(CPUMoxieState *env, int ex)
-{
- CPUState *cs = CPU(moxie_env_get_cpu(env));
-
- cs->exception_index = ex;
- /* Stash the exception type. */
- env->sregs[2] = ex;
- /* Stash the address where the exception occurred. */
- cpu_restore_state(cs, GETPC());
- env->sregs[5] = env->pc;
- /* Jump to the exception handline routine. */
- env->pc = env->sregs[1];
- cpu_loop_exit(cs);
-}
-
-uint32_t helper_div(CPUMoxieState *env, uint32_t a, uint32_t b)
-{
- if (unlikely(b == 0)) {
- helper_raise_exception(env, MOXIE_EX_DIV0);
- return 0;
- }
- if (unlikely(a == INT_MIN && b == -1)) {
- return INT_MIN;
- }
-
- return (int32_t)a / (int32_t)b;
-}
-
-uint32_t helper_udiv(CPUMoxieState *env, uint32_t a, uint32_t b)
-{
- if (unlikely(b == 0)) {
- helper_raise_exception(env, MOXIE_EX_DIV0);
- return 0;
- }
- return a / b;
-}
-
-void helper_debug(CPUMoxieState *env)
-{
- CPUState *cs = CPU(moxie_env_get_cpu(env));
-
- cs->exception_index = EXCP_DEBUG;
- cpu_loop_exit(cs);
-}
-
-#if defined(CONFIG_USER_ONLY)
-
-void moxie_cpu_do_interrupt(CPUState *cs)
-{
- CPUState *cs = CPU(moxie_env_get_cpu(env));
-
- cs->exception_index = -1;
-}
-
-int moxie_cpu_handle_mmu_fault(CPUState *cs, vaddr address,
- int rw, int mmu_idx)
-{
- MoxieCPU *cpu = MOXIE_CPU(cs);
-
- cs->exception_index = 0xaa;
- cpu->env.debug1 = address;
- cpu_dump_state(cs, stderr, fprintf, 0);
- return 1;
-}
-
-#else /* !CONFIG_USER_ONLY */
-
-int moxie_cpu_handle_mmu_fault(CPUState *cs, vaddr address,
- int rw, int mmu_idx)
-{
- MoxieCPU *cpu = MOXIE_CPU(cs);
- CPUMoxieState *env = &cpu->env;
- MoxieMMUResult res;
- int prot, miss;
- target_ulong phy;
- int r = 1;
-
- address &= TARGET_PAGE_MASK;
- prot = PAGE_READ | PAGE_WRITE | PAGE_EXEC;
- miss = moxie_mmu_translate(&res, env, address, rw, mmu_idx);
- if (miss) {
- /* handle the miss. */
- phy = 0;
- cs->exception_index = MOXIE_EX_MMU_MISS;
- } else {
- phy = res.phy;
- r = 0;
- }
- tlb_set_page(cs, address, phy, prot, mmu_idx, TARGET_PAGE_SIZE);
- return r;
-}
-
-
-void moxie_cpu_do_interrupt(CPUState *cs)
-{
- switch (cs->exception_index) {
- case MOXIE_EX_BREAK:
- break;
- default:
- break;
- }
-}
-
-hwaddr moxie_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
-{
- MoxieCPU *cpu = MOXIE_CPU(cs);
- uint32_t phy = addr;
- MoxieMMUResult res;
- int miss;
-
- miss = moxie_mmu_translate(&res, &cpu->env, addr, 0, 0);
- if (!miss) {
- phy = res.phy;
- }
- return phy;
-}
-#endif
diff --git a/target-moxie/helper.h b/target-moxie/helper.h
deleted file mode 100644
index d94ef7a17e..0000000000
--- a/target-moxie/helper.h
+++ /dev/null
@@ -1,5 +0,0 @@
-DEF_HELPER_2(raise_exception, void, env, int)
-DEF_HELPER_1(debug, void, env)
-
-DEF_HELPER_FLAGS_3(div, TCG_CALL_NO_WG, i32, env, i32, i32)
-DEF_HELPER_FLAGS_3(udiv, TCG_CALL_NO_WG, i32, env, i32, i32)
diff --git a/target-moxie/machine.c b/target-moxie/machine.c
deleted file mode 100644
index 282dcd869f..0000000000
--- a/target-moxie/machine.c
+++ /dev/null
@@ -1,22 +0,0 @@
-#include "qemu/osdep.h"
-#include "qemu-common.h"
-#include "cpu.h"
-#include "hw/hw.h"
-#include "hw/boards.h"
-#include "machine.h"
-#include "migration/cpu.h"
-
-const VMStateDescription vmstate_moxie_cpu = {
- .name = "cpu",
- .version_id = 1,
- .minimum_version_id = 1,
- .fields = (VMStateField[]) {
- VMSTATE_UINT32(flags, CPUMoxieState),
- VMSTATE_UINT32_ARRAY(gregs, CPUMoxieState, 16),
- VMSTATE_UINT32_ARRAY(sregs, CPUMoxieState, 256),
- VMSTATE_UINT32(pc, CPUMoxieState),
- VMSTATE_UINT32(cc_a, CPUMoxieState),
- VMSTATE_UINT32(cc_b, CPUMoxieState),
- VMSTATE_END_OF_LIST()
- }
-};
diff --git a/target-moxie/machine.h b/target-moxie/machine.h
deleted file mode 100644
index a1b72907ae..0000000000
--- a/target-moxie/machine.h
+++ /dev/null
@@ -1 +0,0 @@
-extern const VMStateDescription vmstate_moxie_cpu;
diff --git a/target-moxie/mmu.c b/target-moxie/mmu.c
deleted file mode 100644
index 9203330b3b..0000000000
--- a/target-moxie/mmu.c
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Moxie mmu emulation.
- *
- * Copyright (c) 2008, 2013 Anthony Green
- *
- * 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 General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "qemu/osdep.h"
-
-#include "cpu.h"
-#include "mmu.h"
-#include "exec/exec-all.h"
-
-int moxie_mmu_translate(MoxieMMUResult *res,
- CPUMoxieState *env, uint32_t vaddr,
- int rw, int mmu_idx)
-{
- /* Perform no translation yet. */
- res->phy = vaddr;
- return 0;
-}
diff --git a/target-moxie/mmu.h b/target-moxie/mmu.h
deleted file mode 100644
index 284a44d18e..0000000000
--- a/target-moxie/mmu.h
+++ /dev/null
@@ -1,14 +0,0 @@
-#define MOXIE_MMU_ERR_EXEC 0
-#define MOXIE_MMU_ERR_READ 1
-#define MOXIE_MMU_ERR_WRITE 2
-#define MOXIE_MMU_ERR_FLUSH 3
-
-typedef struct {
- uint32_t phy;
- uint32_t pfn;
- int cause_op;
-} MoxieMMUResult;
-
-int moxie_mmu_translate(MoxieMMUResult *res,
- CPUMoxieState *env, uint32_t vaddr,
- int rw, int mmu_idx);
diff --git a/target-moxie/translate.c b/target-moxie/translate.c
deleted file mode 100644
index 0660b44c08..0000000000
--- a/target-moxie/translate.c
+++ /dev/null
@@ -1,908 +0,0 @@
-/*
- * Moxie emulation for qemu: main translation routines.
- *
- * Copyright (c) 2009, 2013 Anthony Green
- *
- * 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 General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-/* For information on the Moxie architecture, see
- * http://moxielogic.org/wiki
- */
-
-#include "qemu/osdep.h"
-
-#include "cpu.h"
-#include "exec/exec-all.h"
-#include "disas/disas.h"
-#include "tcg-op.h"
-#include "exec/cpu_ldst.h"
-
-#include "exec/helper-proto.h"
-#include "exec/helper-gen.h"
-#include "exec/log.h"
-
-/* This is the state at translation time. */
-typedef struct DisasContext {
- struct TranslationBlock *tb;
- target_ulong pc, saved_pc;
- uint32_t opcode;
- uint32_t fp_status;
- /* Routine used to access memory */
- int memidx;
- int bstate;
- target_ulong btarget;
- int singlestep_enabled;
-} DisasContext;
-
-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 */
-};
-
-static TCGv cpu_pc;
-static TCGv cpu_gregs[16];
-static TCGv_env cpu_env;
-static TCGv cc_a, cc_b;
-
-#include "exec/gen-icount.h"
-
-#define REG(x) (cpu_gregs[x])
-
-/* Extract the signed 10-bit offset from a 16-bit branch
- instruction. */
-static int extract_branch_offset(int opcode)
-{
- return (((signed short)((opcode & ((1 << 10) - 1)) << 6)) >> 6) << 1;
-}
-
-void moxie_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf,
- int flags)
-{
- MoxieCPU *cpu = MOXIE_CPU(cs);
- CPUMoxieState *env = &cpu->env;
- int i;
- cpu_fprintf(f, "pc=0x%08x\n", env->pc);
- cpu_fprintf(f, "$fp=0x%08x $sp=0x%08x $r0=0x%08x $r1=0x%08x\n",
- env->gregs[0], env->gregs[1], env->gregs[2], env->gregs[3]);
- for (i = 4; i < 16; i += 4) {
- cpu_fprintf(f, "$r%d=0x%08x $r%d=0x%08x $r%d=0x%08x $r%d=0x%08x\n",
- i-2, env->gregs[i], i-1, env->gregs[i + 1],
- i, env->gregs[i + 2], i+1, env->gregs[i + 3]);
- }
- for (i = 4; i < 16; i += 4) {
- cpu_fprintf(f, "sr%d=0x%08x sr%d=0x%08x sr%d=0x%08x sr%d=0x%08x\n",
- i-2, env->sregs[i], i-1, env->sregs[i + 1],
- i, env->sregs[i + 2], i+1, env->sregs[i + 3]);
- }
-}
-
-void moxie_translate_init(void)
-{
- int i;
- static int done_init;
- static const char * const gregnames[16] = {
- "$fp", "$sp", "$r0", "$r1",
- "$r2", "$r3", "$r4", "$r5",
- "$r6", "$r7", "$r8", "$r9",
- "$r10", "$r11", "$r12", "$r13"
- };
-
- if (done_init) {
- return;
- }
- cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
- tcg_ctx.tcg_env = cpu_env;
- cpu_pc = tcg_global_mem_new_i32(cpu_env,
- offsetof(CPUMoxieState, pc), "$pc");
- for (i = 0; i < 16; i++)
- cpu_gregs[i] = tcg_global_mem_new_i32(cpu_env,
- offsetof(CPUMoxieState, gregs[i]),
- gregnames[i]);
-
- cc_a = tcg_global_mem_new_i32(cpu_env,
- offsetof(CPUMoxieState, cc_a), "cc_a");
- cc_b = tcg_global_mem_new_i32(cpu_env,
- offsetof(CPUMoxieState, cc_b), "cc_b");
-
- done_init = 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 inline void gen_goto_tb(CPUMoxieState *env, DisasContext *ctx,
- int n, target_ulong dest)
-{
- if (use_goto_tb(ctx, dest)) {
- 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 int decode_opc(MoxieCPU *cpu, DisasContext *ctx)
-{
- CPUMoxieState *env = &cpu->env;
-
- /* Local cache for the instruction opcode. */
- int opcode;
- /* Set the default instruction length. */
- int length = 2;
-
- /* Examine the 16-bit opcode. */
- opcode = ctx->opcode;
-
- /* Decode instruction. */
- if (opcode & (1 << 15)) {
- if (opcode & (1 << 14)) {
- /* This is a Form 3 instruction. */
- int inst = (opcode >> 10 & 0xf);
-
-#define BRANCH(cond) \
- do { \
- TCGLabel *l1 = gen_new_label(); \
- tcg_gen_brcond_i32(cond, cc_a, cc_b, l1); \
- gen_goto_tb(env, ctx, 1, ctx->pc+2); \
- gen_set_label(l1); \
- gen_goto_tb(env, ctx, 0, extract_branch_offset(opcode) + ctx->pc+2); \
- ctx->bstate = BS_BRANCH; \
- } while (0)
-
- switch (inst) {
- case 0x00: /* beq */
- BRANCH(TCG_COND_EQ);
- break;
- case 0x01: /* bne */
- BRANCH(TCG_COND_NE);
- break;
- case 0x02: /* blt */
- BRANCH(TCG_COND_LT);
- break;
- case 0x03: /* bgt */
- BRANCH(TCG_COND_GT);
- break;
- case 0x04: /* bltu */
- BRANCH(TCG_COND_LTU);
- break;
- case 0x05: /* bgtu */
- BRANCH(TCG_COND_GTU);
- break;
- case 0x06: /* bge */
- BRANCH(TCG_COND_GE);
- break;
- case 0x07: /* ble */
- BRANCH(TCG_COND_LE);
- break;
- case 0x08: /* bgeu */
- BRANCH(TCG_COND_GEU);
- break;
- case 0x09: /* bleu */
- BRANCH(TCG_COND_LEU);
- break;
- default:
- {
- TCGv temp = tcg_temp_new_i32();
- tcg_gen_movi_i32(cpu_pc, ctx->pc);
- tcg_gen_movi_i32(temp, MOXIE_EX_BAD);
- gen_helper_raise_exception(cpu_env, temp);
- tcg_temp_free_i32(temp);
- }
- break;
- }
- } else {
- /* This is a Form 2 instruction. */
- int inst = (opcode >> 12 & 0x3);
- switch (inst) {
- case 0x00: /* inc */
- {
- int a = (opcode >> 8) & 0xf;
- unsigned int v = (opcode & 0xff);
- tcg_gen_addi_i32(REG(a), REG(a), v);
- }
- break;
- case 0x01: /* dec */
- {
- int a = (opcode >> 8) & 0xf;
- unsigned int v = (opcode & 0xff);
- tcg_gen_subi_i32(REG(a), REG(a), v);
- }
- break;
- case 0x02: /* gsr */
- {
- int a = (opcode >> 8) & 0xf;
- unsigned v = (opcode & 0xff);
- tcg_gen_ld_i32(REG(a), cpu_env,
- offsetof(CPUMoxieState, sregs[v]));
- }
- break;
- case 0x03: /* ssr */
- {
- int a = (opcode >> 8) & 0xf;
- unsigned v = (opcode & 0xff);
- tcg_gen_st_i32(REG(a), cpu_env,
- offsetof(CPUMoxieState, sregs[v]));
- }
- break;
- default:
- {
- TCGv temp = tcg_temp_new_i32();
- tcg_gen_movi_i32(cpu_pc, ctx->pc);
- tcg_gen_movi_i32(temp, MOXIE_EX_BAD);
- gen_helper_raise_exception(cpu_env, temp);
- tcg_temp_free_i32(temp);
- }
- break;
- }
- }
- } else {
- /* This is a Form 1 instruction. */
- int inst = opcode >> 8;
- switch (inst) {
- case 0x00: /* nop */
- break;
- case 0x01: /* ldi.l (immediate) */
- {
- int reg = (opcode >> 4) & 0xf;
- int val = cpu_ldl_code(env, ctx->pc+2);
- tcg_gen_movi_i32(REG(reg), val);
- length = 6;
- }
- break;
- case 0x02: /* mov (register-to-register) */
- {
- int dest = (opcode >> 4) & 0xf;
- int src = opcode & 0xf;
- tcg_gen_mov_i32(REG(dest), REG(src));
- }
- break;
- case 0x03: /* jsra */
- {
- TCGv t1 = tcg_temp_new_i32();
- TCGv t2 = tcg_temp_new_i32();
-
- tcg_gen_movi_i32(t1, ctx->pc + 6);
-
- /* Make space for the static chain and return address. */
- tcg_gen_subi_i32(t2, REG(1), 8);
- tcg_gen_mov_i32(REG(1), t2);
- tcg_gen_qemu_st32(t1, REG(1), ctx->memidx);
-
- /* Push the current frame pointer. */
- tcg_gen_subi_i32(t2, REG(1), 4);
- tcg_gen_mov_i32(REG(1), t2);
- tcg_gen_qemu_st32(REG(0), REG(1), ctx->memidx);
-
- /* Set the pc and $fp. */
- tcg_gen_mov_i32(REG(0), REG(1));
-
- gen_goto_tb(env, ctx, 0, cpu_ldl_code(env, ctx->pc+2));
-
- tcg_temp_free_i32(t1);
- tcg_temp_free_i32(t2);
-
- ctx->bstate = BS_BRANCH;
- length = 6;
- }
- break;
- case 0x04: /* ret */
- {
- TCGv t1 = tcg_temp_new_i32();
-
- /* The new $sp is the old $fp. */
- tcg_gen_mov_i32(REG(1), REG(0));
-
- /* Pop the frame pointer. */
- tcg_gen_qemu_ld32u(REG(0), REG(1), ctx->memidx);
- tcg_gen_addi_i32(t1, REG(1), 4);
- tcg_gen_mov_i32(REG(1), t1);
-
-
- /* Pop the return address and skip over the static chain
- slot. */
- tcg_gen_qemu_ld32u(cpu_pc, REG(1), ctx->memidx);
- tcg_gen_addi_i32(t1, REG(1), 8);
- tcg_gen_mov_i32(REG(1), t1);
-
- tcg_temp_free_i32(t1);
-
- /* Jump... */
- tcg_gen_exit_tb(0);
-
- ctx->bstate = BS_BRANCH;
- }
- break;
- case 0x05: /* add.l */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
-
- tcg_gen_add_i32(REG(a), REG(a), REG(b));
- }
- break;
- case 0x06: /* push */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
-
- TCGv t1 = tcg_temp_new_i32();
- tcg_gen_subi_i32(t1, REG(a), 4);
- tcg_gen_mov_i32(REG(a), t1);
- tcg_gen_qemu_st32(REG(b), REG(a), ctx->memidx);
- tcg_temp_free_i32(t1);
- }
- break;
- case 0x07: /* pop */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
- TCGv t1 = tcg_temp_new_i32();
-
- tcg_gen_qemu_ld32u(REG(b), REG(a), ctx->memidx);
- tcg_gen_addi_i32(t1, REG(a), 4);
- tcg_gen_mov_i32(REG(a), t1);
- tcg_temp_free_i32(t1);
- }
- break;
- case 0x08: /* lda.l */
- {
- int reg = (opcode >> 4) & 0xf;
-
- TCGv ptr = tcg_temp_new_i32();
- tcg_gen_movi_i32(ptr, cpu_ldl_code(env, ctx->pc+2));
- tcg_gen_qemu_ld32u(REG(reg), ptr, ctx->memidx);
- tcg_temp_free_i32(ptr);
-
- length = 6;
- }
- break;
- case 0x09: /* sta.l */
- {
- int val = (opcode >> 4) & 0xf;
-
- TCGv ptr = tcg_temp_new_i32();
- tcg_gen_movi_i32(ptr, cpu_ldl_code(env, ctx->pc+2));
- tcg_gen_qemu_st32(REG(val), ptr, ctx->memidx);
- tcg_temp_free_i32(ptr);
-
- length = 6;
- }
- break;
- case 0x0a: /* ld.l (register indirect) */
- {
- int src = opcode & 0xf;
- int dest = (opcode >> 4) & 0xf;
-
- tcg_gen_qemu_ld32u(REG(dest), REG(src), ctx->memidx);
- }
- break;
- case 0x0b: /* st.l */
- {
- int dest = (opcode >> 4) & 0xf;
- int val = opcode & 0xf;
-
- tcg_gen_qemu_st32(REG(val), REG(dest), ctx->memidx);
- }
- break;
- case 0x0c: /* ldo.l */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
-
- TCGv t1 = tcg_temp_new_i32();
- TCGv t2 = tcg_temp_new_i32();
- tcg_gen_addi_i32(t1, REG(b), cpu_ldl_code(env, ctx->pc+2));
- tcg_gen_qemu_ld32u(t2, t1, ctx->memidx);
- tcg_gen_mov_i32(REG(a), t2);
-
- tcg_temp_free_i32(t1);
- tcg_temp_free_i32(t2);
-
- length = 6;
- }
- break;
- case 0x0d: /* sto.l */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
-
- TCGv t1 = tcg_temp_new_i32();
- TCGv t2 = tcg_temp_new_i32();
- tcg_gen_addi_i32(t1, REG(a), cpu_ldl_code(env, ctx->pc+2));
- tcg_gen_qemu_st32(REG(b), t1, ctx->memidx);
-
- tcg_temp_free_i32(t1);
- tcg_temp_free_i32(t2);
-
- length = 6;
- }
- break;
- case 0x0e: /* cmp */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
-
- tcg_gen_mov_i32(cc_a, REG(a));
- tcg_gen_mov_i32(cc_b, REG(b));
- }
- break;
- case 0x19: /* jsr */
- {
- int fnreg = (opcode >> 4) & 0xf;
-
- /* Load the stack pointer into T0. */
- TCGv t1 = tcg_temp_new_i32();
- TCGv t2 = tcg_temp_new_i32();
-
- tcg_gen_movi_i32(t1, ctx->pc+2);
-
- /* Make space for the static chain and return address. */
- tcg_gen_subi_i32(t2, REG(1), 8);
- tcg_gen_mov_i32(REG(1), t2);
- tcg_gen_qemu_st32(t1, REG(1), ctx->memidx);
-
- /* Push the current frame pointer. */
- tcg_gen_subi_i32(t2, REG(1), 4);
- tcg_gen_mov_i32(REG(1), t2);
- tcg_gen_qemu_st32(REG(0), REG(1), ctx->memidx);
-
- /* Set the pc and $fp. */
- tcg_gen_mov_i32(REG(0), REG(1));
- tcg_gen_mov_i32(cpu_pc, REG(fnreg));
- tcg_temp_free_i32(t1);
- tcg_temp_free_i32(t2);
- tcg_gen_exit_tb(0);
- ctx->bstate = BS_BRANCH;
- }
- break;
- case 0x1a: /* jmpa */
- {
- tcg_gen_movi_i32(cpu_pc, cpu_ldl_code(env, ctx->pc+2));
- tcg_gen_exit_tb(0);
- ctx->bstate = BS_BRANCH;
- length = 6;
- }
- break;
- case 0x1b: /* ldi.b (immediate) */
- {
- int reg = (opcode >> 4) & 0xf;
- int val = cpu_ldl_code(env, ctx->pc+2);
- tcg_gen_movi_i32(REG(reg), val);
- length = 6;
- }
- break;
- case 0x1c: /* ld.b (register indirect) */
- {
- int src = opcode & 0xf;
- int dest = (opcode >> 4) & 0xf;
-
- tcg_gen_qemu_ld8u(REG(dest), REG(src), ctx->memidx);
- }
- break;
- case 0x1d: /* lda.b */
- {
- int reg = (opcode >> 4) & 0xf;
-
- TCGv ptr = tcg_temp_new_i32();
- tcg_gen_movi_i32(ptr, cpu_ldl_code(env, ctx->pc+2));
- tcg_gen_qemu_ld8u(REG(reg), ptr, ctx->memidx);
- tcg_temp_free_i32(ptr);
-
- length = 6;
- }
- break;
- case 0x1e: /* st.b */
- {
- int dest = (opcode >> 4) & 0xf;
- int val = opcode & 0xf;
-
- tcg_gen_qemu_st8(REG(val), REG(dest), ctx->memidx);
- }
- break;
- case 0x1f: /* sta.b */
- {
- int val = (opcode >> 4) & 0xf;
-
- TCGv ptr = tcg_temp_new_i32();
- tcg_gen_movi_i32(ptr, cpu_ldl_code(env, ctx->pc+2));
- tcg_gen_qemu_st8(REG(val), ptr, ctx->memidx);
- tcg_temp_free_i32(ptr);
-
- length = 6;
- }
- break;
- case 0x20: /* ldi.s (immediate) */
- {
- int reg = (opcode >> 4) & 0xf;
- int val = cpu_ldl_code(env, ctx->pc+2);
- tcg_gen_movi_i32(REG(reg), val);
- length = 6;
- }
- break;
- case 0x21: /* ld.s (register indirect) */
- {
- int src = opcode & 0xf;
- int dest = (opcode >> 4) & 0xf;
-
- tcg_gen_qemu_ld16u(REG(dest), REG(src), ctx->memidx);
- }
- break;
- case 0x22: /* lda.s */
- {
- int reg = (opcode >> 4) & 0xf;
-
- TCGv ptr = tcg_temp_new_i32();
- tcg_gen_movi_i32(ptr, cpu_ldl_code(env, ctx->pc+2));
- tcg_gen_qemu_ld16u(REG(reg), ptr, ctx->memidx);
- tcg_temp_free_i32(ptr);
-
- length = 6;
- }
- break;
- case 0x23: /* st.s */
- {
- int dest = (opcode >> 4) & 0xf;
- int val = opcode & 0xf;
-
- tcg_gen_qemu_st16(REG(val), REG(dest), ctx->memidx);
- }
- break;
- case 0x24: /* sta.s */
- {
- int val = (opcode >> 4) & 0xf;
-
- TCGv ptr = tcg_temp_new_i32();
- tcg_gen_movi_i32(ptr, cpu_ldl_code(env, ctx->pc+2));
- tcg_gen_qemu_st16(REG(val), ptr, ctx->memidx);
- tcg_temp_free_i32(ptr);
-
- length = 6;
- }
- break;
- case 0x25: /* jmp */
- {
- int reg = (opcode >> 4) & 0xf;
- tcg_gen_mov_i32(cpu_pc, REG(reg));
- tcg_gen_exit_tb(0);
- ctx->bstate = BS_BRANCH;
- }
- break;
- case 0x26: /* and */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
-
- tcg_gen_and_i32(REG(a), REG(a), REG(b));
- }
- break;
- case 0x27: /* lshr */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
-
- TCGv sv = tcg_temp_new_i32();
- tcg_gen_andi_i32(sv, REG(b), 0x1f);
- tcg_gen_shr_i32(REG(a), REG(a), sv);
- tcg_temp_free_i32(sv);
- }
- break;
- case 0x28: /* ashl */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
-
- TCGv sv = tcg_temp_new_i32();
- tcg_gen_andi_i32(sv, REG(b), 0x1f);
- tcg_gen_shl_i32(REG(a), REG(a), sv);
- tcg_temp_free_i32(sv);
- }
- break;
- case 0x29: /* sub.l */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
-
- tcg_gen_sub_i32(REG(a), REG(a), REG(b));
- }
- break;
- case 0x2a: /* neg */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
-
- tcg_gen_neg_i32(REG(a), REG(b));
- }
- break;
- case 0x2b: /* or */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
-
- tcg_gen_or_i32(REG(a), REG(a), REG(b));
- }
- break;
- case 0x2c: /* not */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
-
- tcg_gen_not_i32(REG(a), REG(b));
- }
- break;
- case 0x2d: /* ashr */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
-
- TCGv sv = tcg_temp_new_i32();
- tcg_gen_andi_i32(sv, REG(b), 0x1f);
- tcg_gen_sar_i32(REG(a), REG(a), sv);
- tcg_temp_free_i32(sv);
- }
- break;
- case 0x2e: /* xor */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
-
- tcg_gen_xor_i32(REG(a), REG(a), REG(b));
- }
- break;
- case 0x2f: /* mul.l */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
-
- tcg_gen_mul_i32(REG(a), REG(a), REG(b));
- }
- break;
- case 0x30: /* swi */
- {
- int val = cpu_ldl_code(env, ctx->pc+2);
-
- TCGv temp = tcg_temp_new_i32();
- tcg_gen_movi_i32(temp, val);
- tcg_gen_st_i32(temp, cpu_env,
- offsetof(CPUMoxieState, sregs[3]));
- tcg_gen_movi_i32(cpu_pc, ctx->pc);
- tcg_gen_movi_i32(temp, MOXIE_EX_SWI);
- gen_helper_raise_exception(cpu_env, temp);
- tcg_temp_free_i32(temp);
-
- length = 6;
- }
- break;
- case 0x31: /* div.l */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
- tcg_gen_movi_i32(cpu_pc, ctx->pc);
- gen_helper_div(REG(a), cpu_env, REG(a), REG(b));
- }
- break;
- case 0x32: /* udiv.l */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
- tcg_gen_movi_i32(cpu_pc, ctx->pc);
- gen_helper_udiv(REG(a), cpu_env, REG(a), REG(b));
- }
- break;
- case 0x33: /* mod.l */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
- tcg_gen_rem_i32(REG(a), REG(a), REG(b));
- }
- break;
- case 0x34: /* umod.l */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
- tcg_gen_remu_i32(REG(a), REG(a), REG(b));
- }
- break;
- case 0x35: /* brk */
- {
- TCGv temp = tcg_temp_new_i32();
- tcg_gen_movi_i32(cpu_pc, ctx->pc);
- tcg_gen_movi_i32(temp, MOXIE_EX_BREAK);
- gen_helper_raise_exception(cpu_env, temp);
- tcg_temp_free_i32(temp);
- }
- break;
- case 0x36: /* ldo.b */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
-
- TCGv t1 = tcg_temp_new_i32();
- TCGv t2 = tcg_temp_new_i32();
- tcg_gen_addi_i32(t1, REG(b), cpu_ldl_code(env, ctx->pc+2));
- tcg_gen_qemu_ld8u(t2, t1, ctx->memidx);
- tcg_gen_mov_i32(REG(a), t2);
-
- tcg_temp_free_i32(t1);
- tcg_temp_free_i32(t2);
-
- length = 6;
- }
- break;
- case 0x37: /* sto.b */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
-
- TCGv t1 = tcg_temp_new_i32();
- TCGv t2 = tcg_temp_new_i32();
- tcg_gen_addi_i32(t1, REG(a), cpu_ldl_code(env, ctx->pc+2));
- tcg_gen_qemu_st8(REG(b), t1, ctx->memidx);
-
- tcg_temp_free_i32(t1);
- tcg_temp_free_i32(t2);
-
- length = 6;
- }
- break;
- case 0x38: /* ldo.s */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
-
- TCGv t1 = tcg_temp_new_i32();
- TCGv t2 = tcg_temp_new_i32();
- tcg_gen_addi_i32(t1, REG(b), cpu_ldl_code(env, ctx->pc+2));
- tcg_gen_qemu_ld16u(t2, t1, ctx->memidx);
- tcg_gen_mov_i32(REG(a), t2);
-
- tcg_temp_free_i32(t1);
- tcg_temp_free_i32(t2);
-
- length = 6;
- }
- break;
- case 0x39: /* sto.s */
- {
- int a = (opcode >> 4) & 0xf;
- int b = opcode & 0xf;
-
- TCGv t1 = tcg_temp_new_i32();
- TCGv t2 = tcg_temp_new_i32();
- tcg_gen_addi_i32(t1, REG(a), cpu_ldl_code(env, ctx->pc+2));
- tcg_gen_qemu_st16(REG(b), t1, ctx->memidx);
- tcg_temp_free_i32(t1);
- tcg_temp_free_i32(t2);
-
- length = 6;
- }
- break;
- default:
- {
- TCGv temp = tcg_temp_new_i32();
- tcg_gen_movi_i32(cpu_pc, ctx->pc);
- tcg_gen_movi_i32(temp, MOXIE_EX_BAD);
- gen_helper_raise_exception(cpu_env, temp);
- tcg_temp_free_i32(temp);
- }
- break;
- }
- }
-
- return length;
-}
-
-/* generate intermediate code for basic block 'tb'. */
-void gen_intermediate_code(CPUMoxieState *env, struct TranslationBlock *tb)
-{
- MoxieCPU *cpu = moxie_env_get_cpu(env);
- CPUState *cs = CPU(cpu);
- DisasContext ctx;
- target_ulong pc_start;
- int num_insns, max_insns;
-
- pc_start = tb->pc;
- ctx.pc = pc_start;
- ctx.saved_pc = -1;
- ctx.tb = tb;
- ctx.memidx = 0;
- ctx.singlestep_enabled = 0;
- ctx.bstate = BS_NONE;
- 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);
- do {
- tcg_gen_insn_start(ctx.pc);
- num_insns++;
-
- if (unlikely(cpu_breakpoint_test(cs, ctx.pc, BP_ANY))) {
- tcg_gen_movi_i32(cpu_pc, ctx.pc);
- gen_helper_debug(cpu_env);
- ctx.bstate = BS_EXCP;
- /* 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;
- goto done_generating;
- }
-
- ctx.opcode = cpu_lduw_code(env, ctx.pc);
- ctx.pc += decode_opc(cpu, &ctx);
-
- if (num_insns >= max_insns) {
- break;
- }
- if (cs->singlestep_enabled) {
- break;
- }
- if ((ctx.pc & (TARGET_PAGE_SIZE - 1)) == 0) {
- break;
- }
- } while (ctx.bstate == BS_NONE && !tcg_op_buf_full());
-
- if (cs->singlestep_enabled) {
- tcg_gen_movi_tl(cpu_pc, ctx.pc);
- gen_helper_debug(cpu_env);
- } else {
- switch (ctx.bstate) {
- case BS_STOP:
- case BS_NONE:
- gen_goto_tb(env, &ctx, 0, ctx.pc);
- break;
- case BS_EXCP:
- tcg_gen_exit_tb(0);
- break;
- case BS_BRANCH:
- default:
- break;
- }
- }
- done_generating:
- gen_tb_end(tb, num_insns);
-
- tb->size = ctx.pc - pc_start;
- tb->icount = num_insns;
-}
-
-void restore_state_to_opc(CPUMoxieState *env, TranslationBlock *tb,
- target_ulong *data)
-{
- env->pc = data[0];
-}