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authorJia Liu <proljc@gmail.com>2012-07-20 15:50:45 +0800
committerBlue Swirl <blauwirbel@gmail.com>2012-07-27 21:13:00 +0000
commitbbe418f25d070745fd350ab71c3bfca58ea5e62c (patch)
treece8eb37b163bba6e52a905bdb0d3e2b14753df81
parent5b5695073b1d8eda14f8253a1750193d98a42ae8 (diff)
downloadqemu-arm-bbe418f25d070745fd350ab71c3bfca58ea5e62c.tar.gz
target-or32: Add instruction translation
Add OpenRISC instruction tanslation routines. Signed-off-by: Jia Liu <proljc@gmail.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
-rw-r--r--target-openrisc/translate.c1734
1 files changed, 1734 insertions, 0 deletions
diff --git a/target-openrisc/translate.c b/target-openrisc/translate.c
index a2b9b4f3f3..a17455dec2 100644
--- a/target-openrisc/translate.c
+++ b/target-openrisc/translate.c
@@ -25,6 +25,11 @@
#include "qemu-common.h"
#include "qemu-log.h"
#include "config.h"
+#include "bitops.h"
+
+#include "helper.h"
+#define GEN_HELPER 1
+#include "helper.h"
#define OPENRISC_DISAS
@@ -34,14 +39,1743 @@
# define LOG_DIS(...) do { } while (0)
#endif
+typedef struct DisasContext {
+ TranslationBlock *tb;
+ target_ulong pc, ppc, npc;
+ uint32_t tb_flags, synced_flags, flags;
+ uint32_t is_jmp;
+ uint32_t mem_idx;
+ int singlestep_enabled;
+ uint32_t delayed_branch;
+} DisasContext;
+
+static TCGv_ptr cpu_env;
+static TCGv cpu_sr;
+static TCGv cpu_R[32];
+static TCGv cpu_pc;
+static TCGv jmp_pc; /* l.jr/l.jalr temp pc */
+static TCGv cpu_npc;
+static TCGv cpu_ppc;
+static TCGv_i32 env_btaken; /* bf/bnf , F flag taken */
+static TCGv_i32 fpcsr;
+static TCGv machi, maclo;
+static TCGv fpmaddhi, fpmaddlo;
+static TCGv_i32 env_flags;
+#include "gen-icount.h"
+
void openrisc_translate_init(void)
{
+ static const char * const regnames[] = {
+ "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
+ "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
+ "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
+ "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
+ };
+ int i;
+
+ cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env");
+ cpu_sr = tcg_global_mem_new(TCG_AREG0,
+ offsetof(CPUOpenRISCState, sr), "sr");
+ env_flags = tcg_global_mem_new_i32(TCG_AREG0,
+ offsetof(CPUOpenRISCState, flags),
+ "flags");
+ cpu_pc = tcg_global_mem_new(TCG_AREG0,
+ offsetof(CPUOpenRISCState, pc), "pc");
+ cpu_npc = tcg_global_mem_new(TCG_AREG0,
+ offsetof(CPUOpenRISCState, npc), "npc");
+ cpu_ppc = tcg_global_mem_new(TCG_AREG0,
+ offsetof(CPUOpenRISCState, ppc), "ppc");
+ jmp_pc = tcg_global_mem_new(TCG_AREG0,
+ offsetof(CPUOpenRISCState, jmp_pc), "jmp_pc");
+ env_btaken = tcg_global_mem_new_i32(TCG_AREG0,
+ offsetof(CPUOpenRISCState, btaken),
+ "btaken");
+ fpcsr = tcg_global_mem_new_i32(TCG_AREG0,
+ offsetof(CPUOpenRISCState, fpcsr),
+ "fpcsr");
+ machi = tcg_global_mem_new(TCG_AREG0,
+ offsetof(CPUOpenRISCState, machi),
+ "machi");
+ maclo = tcg_global_mem_new(TCG_AREG0,
+ offsetof(CPUOpenRISCState, maclo),
+ "maclo");
+ fpmaddhi = tcg_global_mem_new(TCG_AREG0,
+ offsetof(CPUOpenRISCState, fpmaddhi),
+ "fpmaddhi");
+ fpmaddlo = tcg_global_mem_new(TCG_AREG0,
+ offsetof(CPUOpenRISCState, fpmaddlo),
+ "fpmaddlo");
+ for (i = 0; i < 32; i++) {
+ cpu_R[i] = tcg_global_mem_new(TCG_AREG0,
+ offsetof(CPUOpenRISCState, gpr[i]),
+ regnames[i]);
+ }
+#define GEN_HELPER 2
+#include "helper.h"
+}
+
+/* Writeback SR_F transaltion-space to execution-space. */
+static inline void wb_SR_F(void)
+{
+ int label;
+
+ label = gen_new_label();
+ tcg_gen_andi_tl(cpu_sr, cpu_sr, ~SR_F);
+ tcg_gen_brcondi_tl(TCG_COND_EQ, env_btaken, 0, label);
+ tcg_gen_ori_tl(cpu_sr, cpu_sr, SR_F);
+ gen_set_label(label);
+}
+
+static inline int zero_extend(unsigned int val, int width)
+{
+ return val & ((1 << width) - 1);
+}
+
+static inline int sign_extend(unsigned int val, int width)
+{
+ int sval;
+
+ /* LSL */
+ val <<= TARGET_LONG_BITS - width;
+ sval = val;
+ /* ASR. */
+ sval >>= TARGET_LONG_BITS - width;
+ return sval;
+}
+
+static inline void gen_sync_flags(DisasContext *dc)
+{
+ /* Sync the tb dependent flag between translate and runtime. */
+ if (dc->tb_flags != dc->synced_flags) {
+ tcg_gen_movi_tl(env_flags, dc->tb_flags);
+ dc->synced_flags = dc->tb_flags;
+ }
+}
+
+static void gen_exception(DisasContext *dc, unsigned int excp)
+{
+ TCGv_i32 tmp = tcg_const_i32(excp);
+ gen_helper_exception(cpu_env, tmp);
+ tcg_temp_free_i32(tmp);
+}
+
+static void gen_illegal_exception(DisasContext *dc)
+{
+ tcg_gen_movi_tl(cpu_pc, dc->pc);
+ gen_exception(dc, EXCP_ILLEGAL);
+ dc->is_jmp = DISAS_UPDATE;
+}
+
+/* not used yet, open it when we need or64. */
+/*#ifdef TARGET_OPENRISC64
+static void check_ob64s(DisasContext *dc)
+{
+ if (!(dc->flags & CPUCFGR_OB64S)) {
+ gen_illegal_exception(dc);
+ }
+}
+
+static void check_of64s(DisasContext *dc)
+{
+ if (!(dc->flags & CPUCFGR_OF64S)) {
+ gen_illegal_exception(dc);
+ }
+}
+
+static void check_ov64s(DisasContext *dc)
+{
+ if (!(dc->flags & CPUCFGR_OV64S)) {
+ gen_illegal_exception(dc);
+ }
+}
+#endif*/
+
+static void gen_goto_tb(DisasContext *dc, int n, target_ulong dest)
+{
+ TranslationBlock *tb;
+ tb = dc->tb;
+ if ((tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK) &&
+ likely(!dc->singlestep_enabled)) {
+ tcg_gen_movi_tl(cpu_pc, dest);
+ tcg_gen_goto_tb(n);
+ tcg_gen_exit_tb((tcg_target_long)tb + n);
+ } else {
+ tcg_gen_movi_tl(cpu_pc, dest);
+ if (dc->singlestep_enabled) {
+ gen_exception(dc, EXCP_DEBUG);
+ }
+ tcg_gen_exit_tb(0);
+ }
+}
+
+static void gen_jump(DisasContext *dc, uint32_t imm, uint32_t reg, uint32_t op0)
+{
+ target_ulong tmp_pc;
+ int lab = gen_new_label();
+ TCGv sr_f = tcg_temp_new();
+ /* N26, 26bits imm */
+ tmp_pc = sign_extend((imm<<2), 26) + dc->pc;
+ tcg_gen_andi_tl(sr_f, cpu_sr, SR_F);
+
+ if (op0 == 0x00) { /* l.j */
+ tcg_gen_movi_tl(jmp_pc, tmp_pc);
+ } else if (op0 == 0x01) { /* l.jal */
+ tcg_gen_movi_tl(cpu_R[9], (dc->pc + 8));
+ tcg_gen_movi_tl(jmp_pc, tmp_pc);
+ } else if (op0 == 0x03) { /* l.bnf */
+ tcg_gen_movi_tl(jmp_pc, dc->pc+8);
+ tcg_gen_brcondi_i32(TCG_COND_EQ, sr_f, SR_F, lab);
+ tcg_gen_movi_tl(jmp_pc, tmp_pc);
+ gen_set_label(lab);
+ } else if (op0 == 0x04) { /* l.bf */
+ tcg_gen_movi_tl(jmp_pc, dc->pc+8);
+ tcg_gen_brcondi_i32(TCG_COND_NE, sr_f, SR_F, lab);
+ tcg_gen_movi_tl(jmp_pc, tmp_pc);
+ gen_set_label(lab);
+ } else if (op0 == 0x11) { /* l.jr */
+ tcg_gen_mov_tl(jmp_pc, cpu_R[reg]);
+ } else if (op0 == 0x12) { /* l.jalr */
+ tcg_gen_movi_tl(cpu_R[9], (dc->pc + 8));
+ tcg_gen_mov_tl(jmp_pc, cpu_R[reg]);
+ } else {
+ gen_illegal_exception(dc);
+ }
+
+ tcg_temp_free(sr_f);
+ dc->delayed_branch = 2;
+ dc->tb_flags |= D_FLAG;
+ gen_sync_flags(dc);
+}
+
+static void dec_calc(DisasContext *dc, uint32_t insn)
+{
+ uint32_t op0, op1, op2;
+ uint32_t ra, rb, rd;
+ op0 = extract32(insn, 0, 4);
+ op1 = extract32(insn, 8, 2);
+ op2 = extract32(insn, 6, 2);
+ ra = extract32(insn, 16, 5);
+ rb = extract32(insn, 11, 5);
+ rd = extract32(insn, 21, 5);
+
+ switch (op0) {
+ case 0x0000:
+ switch (op1) {
+ case 0x00: /* l.add */
+ LOG_DIS("l.add r%d, r%d, r%d\n", rd, ra, rb);
+ {
+ int lab = gen_new_label();
+ TCGv_i64 ta = tcg_temp_new_i64();
+ TCGv_i64 tb = tcg_temp_new_i64();
+ TCGv_i64 td = tcg_temp_local_new_i64();
+ TCGv_i32 res = tcg_temp_local_new_i32();
+ TCGv_i32 sr_ove = tcg_temp_local_new_i32();
+ tcg_gen_extu_i32_i64(ta, cpu_R[ra]);
+ tcg_gen_extu_i32_i64(tb, cpu_R[rb]);
+ tcg_gen_add_i64(td, ta, tb);
+ tcg_gen_trunc_i64_i32(res, td);
+ tcg_gen_shri_i64(td, td, 31);
+ tcg_gen_andi_i64(td, td, 0x3);
+ /* Jump to lab when no overflow. */
+ tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
+ tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
+ tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY));
+ tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE);
+ tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab);
+ gen_exception(dc, EXCP_RANGE);
+ gen_set_label(lab);
+ tcg_gen_mov_i32(cpu_R[rd], res);
+ tcg_temp_free_i64(ta);
+ tcg_temp_free_i64(tb);
+ tcg_temp_free_i64(td);
+ tcg_temp_free_i32(res);
+ tcg_temp_free_i32(sr_ove);
+ }
+ break;
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+ break;
+
+ case 0x0001: /* l.addc */
+ switch (op1) {
+ case 0x00:
+ LOG_DIS("l.addc r%d, r%d, r%d\n", rd, ra, rb);
+ {
+ int lab = gen_new_label();
+ TCGv_i64 ta = tcg_temp_new_i64();
+ TCGv_i64 tb = tcg_temp_new_i64();
+ TCGv_i64 tcy = tcg_temp_local_new_i64();
+ TCGv_i64 td = tcg_temp_local_new_i64();
+ TCGv_i32 res = tcg_temp_local_new_i32();
+ TCGv_i32 sr_cy = tcg_temp_local_new_i32();
+ TCGv_i32 sr_ove = tcg_temp_local_new_i32();
+ tcg_gen_extu_i32_i64(ta, cpu_R[ra]);
+ tcg_gen_extu_i32_i64(tb, cpu_R[rb]);
+ tcg_gen_andi_i32(sr_cy, cpu_sr, SR_CY);
+ tcg_gen_extu_i32_i64(tcy, sr_cy);
+ tcg_gen_shri_i64(tcy, tcy, 10);
+ tcg_gen_add_i64(td, ta, tb);
+ tcg_gen_add_i64(td, td, tcy);
+ tcg_gen_trunc_i64_i32(res, td);
+ tcg_gen_shri_i64(td, td, 32);
+ tcg_gen_andi_i64(td, td, 0x3);
+ /* Jump to lab when no overflow. */
+ tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
+ tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
+ tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY));
+ tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE);
+ tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab);
+ gen_exception(dc, EXCP_RANGE);
+ gen_set_label(lab);
+ tcg_gen_mov_i32(cpu_R[rd], res);
+ tcg_temp_free_i64(ta);
+ tcg_temp_free_i64(tb);
+ tcg_temp_free_i64(tcy);
+ tcg_temp_free_i64(td);
+ tcg_temp_free_i32(res);
+ tcg_temp_free_i32(sr_cy);
+ tcg_temp_free_i32(sr_ove);
+ }
+ break;
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+ break;
+
+ case 0x0002: /* l.sub */
+ switch (op1) {
+ case 0x00:
+ LOG_DIS("l.sub r%d, r%d, r%d\n", rd, ra, rb);
+ {
+ int lab = gen_new_label();
+ TCGv_i64 ta = tcg_temp_new_i64();
+ TCGv_i64 tb = tcg_temp_new_i64();
+ TCGv_i64 td = tcg_temp_local_new_i64();
+ TCGv_i32 res = tcg_temp_local_new_i32();
+ TCGv_i32 sr_ove = tcg_temp_local_new_i32();
+
+ tcg_gen_extu_i32_i64(ta, cpu_R[ra]);
+ tcg_gen_extu_i32_i64(tb, cpu_R[rb]);
+ tcg_gen_sub_i64(td, ta, tb);
+ tcg_gen_trunc_i64_i32(res, td);
+ tcg_gen_shri_i64(td, td, 31);
+ tcg_gen_andi_i64(td, td, 0x3);
+ /* Jump to lab when no overflow. */
+ tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
+ tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
+ tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY));
+ tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE);
+ tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab);
+ gen_exception(dc, EXCP_RANGE);
+ gen_set_label(lab);
+ tcg_gen_mov_i32(cpu_R[rd], res);
+ tcg_temp_free_i64(ta);
+ tcg_temp_free_i64(tb);
+ tcg_temp_free_i64(td);
+ tcg_temp_free_i32(res);
+ tcg_temp_free_i32(sr_ove);
+ }
+ break;
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+ break;
+
+ case 0x0003: /* l.and */
+ switch (op1) {
+ case 0x00:
+ LOG_DIS("l.and r%d, r%d, r%d\n", rd, ra, rb);
+ tcg_gen_and_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
+ break;
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+ break;
+
+ case 0x0004: /* l.or */
+ switch (op1) {
+ case 0x00:
+ LOG_DIS("l.or r%d, r%d, r%d\n", rd, ra, rb);
+ tcg_gen_or_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
+ break;
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+ break;
+
+ case 0x0005:
+ switch (op1) {
+ case 0x00: /* l.xor */
+ LOG_DIS("l.xor r%d, r%d, r%d\n", rd, ra, rb);
+ tcg_gen_xor_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
+ break;
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+ break;
+
+ case 0x0006:
+ switch (op1) {
+ case 0x03: /* l.mul */
+ LOG_DIS("l.mul r%d, r%d, r%d\n", rd, ra, rb);
+ if (ra != 0 && rb != 0) {
+ gen_helper_mul32(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
+ } else {
+ tcg_gen_movi_tl(cpu_R[rd], 0x0);
+ }
+ break;
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+ break;
+
+ case 0x0009:
+ switch (op1) {
+ case 0x03: /* l.div */
+ LOG_DIS("l.div r%d, r%d, r%d\n", rd, ra, rb);
+ {
+ int lab0 = gen_new_label();
+ int lab1 = gen_new_label();
+ int lab2 = gen_new_label();
+ int lab3 = gen_new_label();
+ TCGv_i32 sr_ove = tcg_temp_local_new_i32();
+ if (rb == 0) {
+ tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY));
+ tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE);
+ tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab0);
+ gen_exception(dc, EXCP_RANGE);
+ gen_set_label(lab0);
+ } else {
+ tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_R[rb],
+ 0x00000000, lab1);
+ tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[ra],
+ 0x80000000, lab2);
+ tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[rb],
+ 0xffffffff, lab2);
+ gen_set_label(lab1);
+ tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY));
+ tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE);
+ tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab3);
+ gen_exception(dc, EXCP_RANGE);
+ gen_set_label(lab2);
+ tcg_gen_div_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
+ gen_set_label(lab3);
+ }
+ tcg_temp_free_i32(sr_ove);
+ }
+ break;
+
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+ break;
+
+ case 0x000a:
+ switch (op1) {
+ case 0x03: /* l.divu */
+ LOG_DIS("l.divu r%d, r%d, r%d\n", rd, ra, rb);
+ {
+ int lab0 = gen_new_label();
+ int lab1 = gen_new_label();
+ int lab2 = gen_new_label();
+ TCGv_i32 sr_ove = tcg_temp_local_new_i32();
+ if (rb == 0) {
+ tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY));
+ tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE);
+ tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab0);
+ gen_exception(dc, EXCP_RANGE);
+ gen_set_label(lab0);
+ } else {
+ tcg_gen_brcondi_tl(TCG_COND_NE, cpu_R[rb],
+ 0x00000000, lab1);
+ tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY));
+ tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE);
+ tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab2);
+ gen_exception(dc, EXCP_RANGE);
+ gen_set_label(lab1);
+ tcg_gen_divu_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
+ gen_set_label(lab2);
+ }
+ tcg_temp_free_i32(sr_ove);
+ }
+ break;
+
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+ break;
+
+ case 0x000b:
+ switch (op1) {
+ case 0x03: /* l.mulu */
+ LOG_DIS("l.mulu r%d, r%d, r%d\n", rd, ra, rb);
+ if (rb != 0 && ra != 0) {
+ TCGv_i64 result = tcg_temp_local_new_i64();
+ TCGv_i64 tra = tcg_temp_local_new_i64();
+ TCGv_i64 trb = tcg_temp_local_new_i64();
+ TCGv_i64 high = tcg_temp_new_i64();
+ TCGv_i32 sr_ove = tcg_temp_local_new_i32();
+ int lab = gen_new_label();
+ /* Calculate the each result. */
+ tcg_gen_extu_i32_i64(tra, cpu_R[ra]);
+ tcg_gen_extu_i32_i64(trb, cpu_R[rb]);
+ tcg_gen_mul_i64(result, tra, trb);
+ tcg_temp_free_i64(tra);
+ tcg_temp_free_i64(trb);
+ tcg_gen_shri_i64(high, result, TARGET_LONG_BITS);
+ /* Overflow or not. */
+ tcg_gen_brcondi_i64(TCG_COND_EQ, high, 0x00000000, lab);
+ tcg_gen_ori_tl(cpu_sr, cpu_sr, (SR_OV | SR_CY));
+ tcg_gen_andi_tl(sr_ove, cpu_sr, SR_OVE);
+ tcg_gen_brcondi_tl(TCG_COND_NE, sr_ove, SR_OVE, lab);
+ gen_exception(dc, EXCP_RANGE);
+ gen_set_label(lab);
+ tcg_temp_free_i64(high);
+ tcg_gen_trunc_i64_tl(cpu_R[rd], result);
+ tcg_temp_free_i64(result);
+ tcg_temp_free_i32(sr_ove);
+ } else {
+ tcg_gen_movi_tl(cpu_R[rd], 0);
+ }
+ break;
+
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+ break;
+
+ case 0x000e:
+ switch (op1) {
+ case 0x00: /* l.cmov */
+ LOG_DIS("l.cmov r%d, r%d, r%d\n", rd, ra, rb);
+ {
+ int lab = gen_new_label();
+ TCGv res = tcg_temp_local_new();
+ TCGv sr_f = tcg_temp_new();
+ tcg_gen_andi_tl(sr_f, cpu_sr, SR_F);
+ tcg_gen_mov_tl(res, cpu_R[rb]);
+ tcg_gen_brcondi_tl(TCG_COND_NE, sr_f, SR_F, lab);
+ tcg_gen_mov_tl(res, cpu_R[ra]);
+ gen_set_label(lab);
+ tcg_gen_mov_tl(cpu_R[rd], res);
+ tcg_temp_free(sr_f);
+ tcg_temp_free(res);
+ }
+ break;
+
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+ break;
+
+ case 0x000f:
+ switch (op1) {
+ case 0x00: /* l.ff1 */
+ LOG_DIS("l.ff1 r%d, r%d, r%d\n", rd, ra, rb);
+ gen_helper_ff1(cpu_R[rd], cpu_R[ra]);
+ break;
+ case 0x01: /* l.fl1 */
+ LOG_DIS("l.fl1 r%d, r%d, r%d\n", rd, ra, rb);
+ gen_helper_fl1(cpu_R[rd], cpu_R[ra]);
+ break;
+
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+ break;
+
+ case 0x0008:
+ switch (op1) {
+ case 0x00:
+ switch (op2) {
+ case 0x00: /* l.sll */
+ LOG_DIS("l.sll r%d, r%d, r%d\n", rd, ra, rb);
+ tcg_gen_shl_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
+ break;
+ case 0x01: /* l.srl */
+ LOG_DIS("l.srl r%d, r%d, r%d\n", rd, ra, rb);
+ tcg_gen_shr_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
+ break;
+ case 0x02: /* l.sra */
+ LOG_DIS("l.sra r%d, r%d, r%d\n", rd, ra, rb);
+ tcg_gen_sar_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
+ break;
+ case 0x03: /* l.ror */
+ LOG_DIS("l.ror r%d, r%d, r%d\n", rd, ra, rb);
+ tcg_gen_rotr_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]);
+ break;
+
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+ break;
+
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+ break;
+
+ case 0x000c:
+ switch (op1) {
+ case 0x00:
+ switch (op2) {
+ case 0x00: /* l.exths */
+ LOG_DIS("l.exths r%d, r%d\n", rd, ra);
+ tcg_gen_ext16s_tl(cpu_R[rd], cpu_R[ra]);
+ break;
+ case 0x01: /* l.extbs */
+ LOG_DIS("l.extbs r%d, r%d\n", rd, ra);
+ tcg_gen_ext8s_tl(cpu_R[rd], cpu_R[ra]);
+ break;
+ case 0x02: /* l.exthz */
+ LOG_DIS("l.exthz r%d, r%d\n", rd, ra);
+ tcg_gen_ext16u_tl(cpu_R[rd], cpu_R[ra]);
+ break;
+ case 0x03: /* l.extbz */
+ LOG_DIS("l.extbz r%d, r%d\n", rd, ra);
+ tcg_gen_ext8u_tl(cpu_R[rd], cpu_R[ra]);
+ break;
+
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+ break;
+
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+ break;
+
+ case 0x000d:
+ switch (op1) {
+ case 0x00:
+ switch (op2) {
+ case 0x00: /* l.extws */
+ LOG_DIS("l.extws r%d, r%d\n", rd, ra);
+ tcg_gen_ext32s_tl(cpu_R[rd], cpu_R[ra]);
+ break;
+ case 0x01: /* l.extwz */
+ LOG_DIS("l.extwz r%d, r%d\n", rd, ra);
+ tcg_gen_ext32u_tl(cpu_R[rd], cpu_R[ra]);
+ break;
+
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+ break;
+
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+ break;
+
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+}
+
+static void dec_misc(DisasContext *dc, uint32_t insn)
+{
+ uint32_t op0, op1;
+ uint32_t ra, rb, rd;
+#ifdef OPENRISC_DISAS
+ uint32_t L6, K5;
+#endif
+ uint32_t I16, I5, I11, N26, tmp;
+ op0 = extract32(insn, 26, 6);
+ op1 = extract32(insn, 24, 2);
+ ra = extract32(insn, 16, 5);
+ rb = extract32(insn, 11, 5);
+ rd = extract32(insn, 21, 5);
+#ifdef OPENRISC_DISAS
+ L6 = extract32(insn, 5, 6);
+ K5 = extract32(insn, 0, 5);
+#endif
+ I16 = extract32(insn, 0, 16);
+ I5 = extract32(insn, 21, 5);
+ I11 = extract32(insn, 0, 11);
+ N26 = extract32(insn, 0, 26);
+ tmp = (I5<<11) + I11;
+
+ switch (op0) {
+ case 0x00: /* l.j */
+ LOG_DIS("l.j %d\n", N26);
+ gen_jump(dc, N26, 0, op0);
+ break;
+
+ case 0x01: /* l.jal */
+ LOG_DIS("l.jal %d\n", N26);
+ gen_jump(dc, N26, 0, op0);
+ break;
+
+ case 0x03: /* l.bnf */
+ LOG_DIS("l.bnf %d\n", N26);
+ gen_jump(dc, N26, 0, op0);
+ break;
+
+ case 0x04: /* l.bf */
+ LOG_DIS("l.bf %d\n", N26);
+ gen_jump(dc, N26, 0, op0);
+ break;
+
+ case 0x05:
+ switch (op1) {
+ case 0x01: /* l.nop */
+ LOG_DIS("l.nop %d\n", I16);
+ break;
+
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+ break;
+
+ case 0x11: /* l.jr */
+ LOG_DIS("l.jr r%d\n", rb);
+ gen_jump(dc, 0, rb, op0);
+ break;
+
+ case 0x12: /* l.jalr */
+ LOG_DIS("l.jalr r%d\n", rb);
+ gen_jump(dc, 0, rb, op0);
+ break;
+
+ case 0x13: /* l.maci */
+ LOG_DIS("l.maci %d, r%d, %d\n", I5, ra, I11);
+ {
+ TCGv_i64 t1 = tcg_temp_new_i64();
+ TCGv_i64 t2 = tcg_temp_new_i64();
+ TCGv_i32 dst = tcg_temp_new_i32();
+ TCGv ttmp = tcg_const_tl(tmp);
+ tcg_gen_mul_tl(dst, cpu_R[ra], ttmp);
+ tcg_gen_ext_i32_i64(t1, dst);
+ tcg_gen_concat_i32_i64(t2, maclo, machi);
+ tcg_gen_add_i64(t2, t2, t1);
+ tcg_gen_trunc_i64_i32(maclo, t2);
+ tcg_gen_shri_i64(t2, t2, 32);
+ tcg_gen_trunc_i64_i32(machi, t2);
+ tcg_temp_free_i32(dst);
+ tcg_temp_free(ttmp);
+ tcg_temp_free_i64(t1);
+ tcg_temp_free_i64(t2);
+ }
+ break;
+
+ case 0x09: /* l.rfe */
+ LOG_DIS("l.rfe\n");
+ {
+#if defined(CONFIG_USER_ONLY)
+ return;
+#else
+ if (dc->mem_idx == MMU_USER_IDX) {
+ gen_illegal_exception(dc);
+ return;
+ }
+ gen_helper_rfe(cpu_env);
+ dc->is_jmp = DISAS_UPDATE;
+#endif
+ }
+ break;
+
+ case 0x1c: /* l.cust1 */
+ LOG_DIS("l.cust1\n");
+ break;
+
+ case 0x1d: /* l.cust2 */
+ LOG_DIS("l.cust2\n");
+ break;
+
+ case 0x1e: /* l.cust3 */
+ LOG_DIS("l.cust3\n");
+ break;
+
+ case 0x1f: /* l.cust4 */
+ LOG_DIS("l.cust4\n");
+ break;
+
+ case 0x3c: /* l.cust5 */
+ LOG_DIS("l.cust5 r%d, r%d, r%d, %d, %d\n", rd, ra, rb, L6, K5);
+ break;
+
+ case 0x3d: /* l.cust6 */
+ LOG_DIS("l.cust6\n");
+ break;
+
+ case 0x3e: /* l.cust7 */
+ LOG_DIS("l.cust7\n");
+ break;
+
+ case 0x3f: /* l.cust8 */
+ LOG_DIS("l.cust8\n");
+ break;
+
+/* not used yet, open it when we need or64. */
+/*#ifdef TARGET_OPENRISC64
+ case 0x20: l.ld
+ LOG_DIS("l.ld r%d, r%d, %d\n", rd, ra, I16);
+ {
+ check_ob64s(dc);
+ TCGv_i64 t0 = tcg_temp_new_i64();
+ tcg_gen_addi_i64(t0, cpu_R[ra], sign_extend(I16, 16));
+ tcg_gen_qemu_ld64(cpu_R[rd], t0, dc->mem_idx);
+ tcg_temp_free_i64(t0);
+ }
+ break;
+#endif*/
+
+ case 0x21: /* l.lwz */
+ LOG_DIS("l.lwz r%d, r%d, %d\n", rd, ra, I16);
+ {
+ TCGv t0 = tcg_temp_new();
+ tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16));
+ tcg_gen_qemu_ld32u(cpu_R[rd], t0, dc->mem_idx);
+ tcg_temp_free(t0);
+ }
+ break;
+
+ case 0x22: /* l.lws */
+ LOG_DIS("l.lws r%d, r%d, %d\n", rd, ra, I16);
+ {
+ TCGv t0 = tcg_temp_new();
+ tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16));
+ tcg_gen_qemu_ld32s(cpu_R[rd], t0, dc->mem_idx);
+ tcg_temp_free(t0);
+ }
+ break;
+
+ case 0x23: /* l.lbz */
+ LOG_DIS("l.lbz r%d, r%d, %d\n", rd, ra, I16);
+ {
+ TCGv t0 = tcg_temp_new();
+ tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16));
+ tcg_gen_qemu_ld8u(cpu_R[rd], t0, dc->mem_idx);
+ tcg_temp_free(t0);
+ }
+ break;
+
+ case 0x24: /* l.lbs */
+ LOG_DIS("l.lbs r%d, r%d, %d\n", rd, ra, I16);
+ {
+ TCGv t0 = tcg_temp_new();
+ tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16));
+ tcg_gen_qemu_ld8s(cpu_R[rd], t0, dc->mem_idx);
+ tcg_temp_free(t0);
+ }
+ break;
+
+ case 0x25: /* l.lhz */
+ LOG_DIS("l.lhz r%d, r%d, %d\n", rd, ra, I16);
+ {
+ TCGv t0 = tcg_temp_new();
+ tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16));
+ tcg_gen_qemu_ld16u(cpu_R[rd], t0, dc->mem_idx);
+ tcg_temp_free(t0);
+ }
+ break;
+
+ case 0x26: /* l.lhs */
+ LOG_DIS("l.lhs r%d, r%d, %d\n", rd, ra, I16);
+ {
+ TCGv t0 = tcg_temp_new();
+ tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(I16, 16));
+ tcg_gen_qemu_ld16s(cpu_R[rd], t0, dc->mem_idx);
+ tcg_temp_free(t0);
+ }
+ break;
+
+ case 0x27: /* l.addi */
+ LOG_DIS("l.addi r%d, r%d, %d\n", rd, ra, I16);
+ {
+ int lab = gen_new_label();
+ TCGv_i64 ta = tcg_temp_new_i64();
+ TCGv_i64 td = tcg_temp_local_new_i64();
+ TCGv_i32 res = tcg_temp_local_new_i32();
+ TCGv_i32 sr_ove = tcg_temp_local_new_i32();
+ tcg_gen_extu_i32_i64(ta, cpu_R[ra]);
+ tcg_gen_addi_i64(td, ta, sign_extend(I16, 16));
+ tcg_gen_trunc_i64_i32(res, td);
+ tcg_gen_shri_i64(td, td, 32);
+ tcg_gen_andi_i64(td, td, 0x3);
+ /* Jump to lab when no overflow. */
+ tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
+ tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
+ tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY));
+ tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE);
+ tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab);
+ gen_exception(dc, EXCP_RANGE);
+ gen_set_label(lab);
+ tcg_gen_mov_i32(cpu_R[rd], res);
+ tcg_temp_free_i64(ta);
+ tcg_temp_free_i64(td);
+ tcg_temp_free_i32(res);
+ tcg_temp_free_i32(sr_ove);
+ }
+ break;
+
+ case 0x28: /* l.addic */
+ LOG_DIS("l.addic r%d, r%d, %d\n", rd, ra, I16);
+ {
+ int lab = gen_new_label();
+ TCGv_i64 ta = tcg_temp_new_i64();
+ TCGv_i64 td = tcg_temp_local_new_i64();
+ TCGv_i64 tcy = tcg_temp_local_new_i64();
+ TCGv_i32 res = tcg_temp_local_new_i32();
+ TCGv_i32 sr_cy = tcg_temp_local_new_i32();
+ TCGv_i32 sr_ove = tcg_temp_local_new_i32();
+ tcg_gen_extu_i32_i64(ta, cpu_R[ra]);
+ tcg_gen_andi_i32(sr_cy, cpu_sr, SR_CY);
+ tcg_gen_shri_i32(sr_cy, sr_cy, 10);
+ tcg_gen_extu_i32_i64(tcy, sr_cy);
+ tcg_gen_addi_i64(td, ta, sign_extend(I16, 16));
+ tcg_gen_add_i64(td, td, tcy);
+ tcg_gen_trunc_i64_i32(res, td);
+ tcg_gen_shri_i64(td, td, 32);
+ tcg_gen_andi_i64(td, td, 0x3);
+ /* Jump to lab when no overflow. */
+ tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x0, lab);
+ tcg_gen_brcondi_i64(TCG_COND_EQ, td, 0x3, lab);
+ tcg_gen_ori_i32(cpu_sr, cpu_sr, (SR_OV | SR_CY));
+ tcg_gen_andi_i32(sr_ove, cpu_sr, SR_OVE);
+ tcg_gen_brcondi_i32(TCG_COND_NE, sr_ove, SR_OVE, lab);
+ gen_exception(dc, EXCP_RANGE);
+ gen_set_label(lab);
+ tcg_gen_mov_i32(cpu_R[rd], res);
+ tcg_temp_free_i64(ta);
+ tcg_temp_free_i64(td);
+ tcg_temp_free_i64(tcy);
+ tcg_temp_free_i32(res);
+ tcg_temp_free_i32(sr_cy);
+ tcg_temp_free_i32(sr_ove);
+ }
+ break;
+
+ case 0x29: /* l.andi */
+ LOG_DIS("l.andi r%d, r%d, %d\n", rd, ra, I16);
+ tcg_gen_andi_tl(cpu_R[rd], cpu_R[ra], zero_extend(I16, 16));
+ break;
+
+ case 0x2a: /* l.ori */
+ LOG_DIS("l.ori r%d, r%d, %d\n", rd, ra, I16);
+ tcg_gen_ori_tl(cpu_R[rd], cpu_R[ra], zero_extend(I16, 16));
+ break;
+
+ case 0x2b: /* l.xori */
+ LOG_DIS("l.xori r%d, r%d, %d\n", rd, ra, I16);
+ tcg_gen_xori_tl(cpu_R[rd], cpu_R[ra], sign_extend(I16, 16));
+ break;
+
+ case 0x2c: /* l.muli */
+ LOG_DIS("l.muli r%d, r%d, %d\n", rd, ra, I16);
+ if (ra != 0 && I16 != 0) {
+ TCGv_i32 im = tcg_const_i32(I16);
+ gen_helper_mul32(cpu_R[rd], cpu_env, cpu_R[ra], im);
+ tcg_temp_free_i32(im);
+ } else {
+ tcg_gen_movi_tl(cpu_R[rd], 0x0);
+ }
+ break;
+
+ case 0x2d: /* l.mfspr */
+ LOG_DIS("l.mfspr r%d, r%d, %d\n", rd, ra, I16);
+ break;
+
+ case 0x30: /* l.mtspr */
+ LOG_DIS("l.mtspr %d, r%d, r%d, %d\n", I5, ra, rb, I11);
+ break;
+
+/* not used yet, open it when we need or64. */
+/*#ifdef TARGET_OPENRISC64
+ case 0x34: l.sd
+ LOG_DIS("l.sd %d, r%d, r%d, %d\n", I5, ra, rb, I11);
+ {
+ check_ob64s(dc);
+ TCGv_i64 t0 = tcg_temp_new_i64();
+ tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(tmp, 16));
+ tcg_gen_qemu_st64(cpu_R[rb], t0, dc->mem_idx);
+ tcg_temp_free_i64(t0);
+ }
+ break;
+#endif*/
+
+ case 0x35: /* l.sw */
+ LOG_DIS("l.sw %d, r%d, r%d, %d\n", I5, ra, rb, I11);
+ {
+ TCGv t0 = tcg_temp_new();
+ tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(tmp, 16));
+ tcg_gen_qemu_st32(cpu_R[rb], t0, dc->mem_idx);
+ tcg_temp_free(t0);
+ }
+ break;
+
+ case 0x36: /* l.sb */
+ LOG_DIS("l.sb %d, r%d, r%d, %d\n", I5, ra, rb, I11);
+ {
+ TCGv t0 = tcg_temp_new();
+ tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(tmp, 16));
+ tcg_gen_qemu_st8(cpu_R[rb], t0, dc->mem_idx);
+ tcg_temp_free(t0);
+ }
+ break;
+
+ case 0x37: /* l.sh */
+ LOG_DIS("l.sh %d, r%d, r%d, %d\n", I5, ra, rb, I11);
+ {
+ TCGv t0 = tcg_temp_new();
+ tcg_gen_addi_tl(t0, cpu_R[ra], sign_extend(tmp, 16));
+ tcg_gen_qemu_st16(cpu_R[rb], t0, dc->mem_idx);
+ tcg_temp_free(t0);
+ }
+ break;
+
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+}
+
+static void dec_mac(DisasContext *dc, uint32_t insn)
+{
+ uint32_t op0;
+ uint32_t ra, rb;
+ op0 = extract32(insn, 0, 4);
+ ra = extract32(insn, 16, 5);
+ rb = extract32(insn, 11, 5);
+
+ switch (op0) {
+ case 0x0001: /* l.mac */
+ LOG_DIS("l.mac r%d, r%d\n", ra, rb);
+ {
+ TCGv_i32 t0 = tcg_temp_new_i32();
+ TCGv_i64 t1 = tcg_temp_new_i64();
+ TCGv_i64 t2 = tcg_temp_new_i64();
+ tcg_gen_mul_tl(t0, cpu_R[ra], cpu_R[rb]);
+ tcg_gen_ext_i32_i64(t1, t0);
+ tcg_gen_concat_i32_i64(t2, maclo, machi);
+ tcg_gen_add_i64(t2, t2, t1);
+ tcg_gen_trunc_i64_i32(maclo, t2);
+ tcg_gen_shri_i64(t2, t2, 32);
+ tcg_gen_trunc_i64_i32(machi, t2);
+ tcg_temp_free_i32(t0);
+ tcg_temp_free_i64(t1);
+ tcg_temp_free_i64(t2);
+ }
+ break;
+
+ case 0x0002: /* l.msb */
+ LOG_DIS("l.msb r%d, r%d\n", ra, rb);
+ {
+ TCGv_i32 t0 = tcg_temp_new_i32();
+ TCGv_i64 t1 = tcg_temp_new_i64();
+ TCGv_i64 t2 = tcg_temp_new_i64();
+ tcg_gen_mul_tl(t0, cpu_R[ra], cpu_R[rb]);
+ tcg_gen_ext_i32_i64(t1, t0);
+ tcg_gen_concat_i32_i64(t2, maclo, machi);
+ tcg_gen_sub_i64(t2, t2, t1);
+ tcg_gen_trunc_i64_i32(maclo, t2);
+ tcg_gen_shri_i64(t2, t2, 32);
+ tcg_gen_trunc_i64_i32(machi, t2);
+ tcg_temp_free_i32(t0);
+ tcg_temp_free_i64(t1);
+ tcg_temp_free_i64(t2);
+ }
+ break;
+
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+}
+
+static void dec_logic(DisasContext *dc, uint32_t insn)
+{
+ uint32_t op0;
+ uint32_t rd, ra, L6;
+ op0 = extract32(insn, 6, 2);
+ rd = extract32(insn, 21, 5);
+ ra = extract32(insn, 16, 5);
+ L6 = extract32(insn, 0, 6);
+
+ switch (op0) {
+ case 0x00: /* l.slli */
+ LOG_DIS("l.slli r%d, r%d, %d\n", rd, ra, L6);
+ tcg_gen_shli_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f));
+ break;
+
+ case 0x01: /* l.srli */
+ LOG_DIS("l.srli r%d, r%d, %d\n", rd, ra, L6);
+ tcg_gen_shri_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f));
+ break;
+
+ case 0x02: /* l.srai */
+ LOG_DIS("l.srai r%d, r%d, %d\n", rd, ra, L6);
+ tcg_gen_sari_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f)); break;
+
+ case 0x03: /* l.rori */
+ LOG_DIS("l.rori r%d, r%d, %d\n", rd, ra, L6);
+ tcg_gen_rotri_tl(cpu_R[rd], cpu_R[ra], (L6 & 0x1f));
+ break;
+
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+}
+
+static void dec_M(DisasContext *dc, uint32_t insn)
+{
+ uint32_t op0;
+ uint32_t rd;
+ uint32_t K16;
+ op0 = extract32(insn, 16, 1);
+ rd = extract32(insn, 21, 5);
+ K16 = extract32(insn, 0, 16);
+
+ switch (op0) {
+ case 0x0: /* l.movhi */
+ LOG_DIS("l.movhi r%d, %d\n", rd, K16);
+ tcg_gen_movi_tl(cpu_R[rd], (K16 << 16));
+ break;
+
+ case 0x1: /* l.macrc */
+ LOG_DIS("l.macrc r%d\n", rd);
+ tcg_gen_mov_tl(cpu_R[rd], maclo);
+ tcg_gen_movi_tl(maclo, 0x0);
+ tcg_gen_movi_tl(machi, 0x0);
+ break;
+
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+}
+
+static void dec_comp(DisasContext *dc, uint32_t insn)
+{
+ uint32_t op0;
+ uint32_t ra, rb;
+
+ op0 = extract32(insn, 21, 5);
+ ra = extract32(insn, 16, 5);
+ rb = extract32(insn, 11, 5);
+
+ tcg_gen_movi_i32(env_btaken, 0x0);
+ /* unsigned integers */
+ tcg_gen_ext32u_tl(cpu_R[ra], cpu_R[ra]);
+ tcg_gen_ext32u_tl(cpu_R[rb], cpu_R[rb]);
+
+ switch (op0) {
+ case 0x0: /* l.sfeq */
+ LOG_DIS("l.sfeq r%d, r%d\n", ra, rb);
+ tcg_gen_setcond_tl(TCG_COND_EQ, env_btaken, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x1: /* l.sfne */
+ LOG_DIS("l.sfne r%d, r%d\n", ra, rb);
+ tcg_gen_setcond_tl(TCG_COND_NE, env_btaken, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x2: /* l.sfgtu */
+ LOG_DIS("l.sfgtu r%d, r%d\n", ra, rb);
+ tcg_gen_setcond_tl(TCG_COND_GTU, env_btaken, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x3: /* l.sfgeu */
+ LOG_DIS("l.sfgeu r%d, r%d\n", ra, rb);
+ tcg_gen_setcond_tl(TCG_COND_GEU, env_btaken, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x4: /* l.sfltu */
+ LOG_DIS("l.sfltu r%d, r%d\n", ra, rb);
+ tcg_gen_setcond_tl(TCG_COND_LTU, env_btaken, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x5: /* l.sfleu */
+ LOG_DIS("l.sfleu r%d, r%d\n", ra, rb);
+ tcg_gen_setcond_tl(TCG_COND_LEU, env_btaken, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0xa: /* l.sfgts */
+ LOG_DIS("l.sfgts r%d, r%d\n", ra, rb);
+ tcg_gen_setcond_tl(TCG_COND_GT, env_btaken, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0xb: /* l.sfges */
+ LOG_DIS("l.sfges r%d, r%d\n", ra, rb);
+ tcg_gen_setcond_tl(TCG_COND_GE, env_btaken, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0xc: /* l.sflts */
+ LOG_DIS("l.sflts r%d, r%d\n", ra, rb);
+ tcg_gen_setcond_tl(TCG_COND_LT, env_btaken, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0xd: /* l.sfles */
+ LOG_DIS("l.sfles r%d, r%d\n", ra, rb);
+ tcg_gen_setcond_tl(TCG_COND_LE, env_btaken, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+ wb_SR_F();
+}
+
+static void dec_compi(DisasContext *dc, uint32_t insn)
+{
+ uint32_t op0;
+ uint32_t ra, I16;
+
+ op0 = extract32(insn, 21, 5);
+ ra = extract32(insn, 16, 5);
+ I16 = extract32(insn, 0, 16);
+
+ tcg_gen_movi_i32(env_btaken, 0x0);
+ I16 = sign_extend(I16, 16);
+
+ switch (op0) {
+ case 0x0: /* l.sfeqi */
+ LOG_DIS("l.sfeqi r%d, %d\n", ra, I16);
+ tcg_gen_setcondi_tl(TCG_COND_EQ, env_btaken, cpu_R[ra], I16);
+ break;
+
+ case 0x1: /* l.sfnei */
+ LOG_DIS("l.sfnei r%d, %d\n", ra, I16);
+ tcg_gen_setcondi_tl(TCG_COND_NE, env_btaken, cpu_R[ra], I16);
+ break;
+
+ case 0x2: /* l.sfgtui */
+ LOG_DIS("l.sfgtui r%d, %d\n", ra, I16);
+ tcg_gen_setcondi_tl(TCG_COND_GTU, env_btaken, cpu_R[ra], I16);
+ break;
+
+ case 0x3: /* l.sfgeui */
+ LOG_DIS("l.sfgeui r%d, %d\n", ra, I16);
+ tcg_gen_setcondi_tl(TCG_COND_GEU, env_btaken, cpu_R[ra], I16);
+ break;
+
+ case 0x4: /* l.sfltui */
+ LOG_DIS("l.sfltui r%d, %d\n", ra, I16);
+ tcg_gen_setcondi_tl(TCG_COND_LTU, env_btaken, cpu_R[ra], I16);
+ break;
+
+ case 0x5: /* l.sfleui */
+ LOG_DIS("l.sfleui r%d, %d\n", ra, I16);
+ tcg_gen_setcondi_tl(TCG_COND_LEU, env_btaken, cpu_R[ra], I16);
+ break;
+
+ case 0xa: /* l.sfgtsi */
+ LOG_DIS("l.sfgtsi r%d, %d\n", ra, I16);
+ tcg_gen_setcondi_tl(TCG_COND_GT, env_btaken, cpu_R[ra], I16);
+ break;
+
+ case 0xb: /* l.sfgesi */
+ LOG_DIS("l.sfgesi r%d, %d\n", ra, I16);
+ tcg_gen_setcondi_tl(TCG_COND_GE, env_btaken, cpu_R[ra], I16);
+ break;
+
+ case 0xc: /* l.sfltsi */
+ LOG_DIS("l.sfltsi r%d, %d\n", ra, I16);
+ tcg_gen_setcondi_tl(TCG_COND_LT, env_btaken, cpu_R[ra], I16);
+ break;
+
+ case 0xd: /* l.sflesi */
+ LOG_DIS("l.sflesi r%d, %d\n", ra, I16);
+ tcg_gen_setcondi_tl(TCG_COND_LE, env_btaken, cpu_R[ra], I16);
+ break;
+
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+ wb_SR_F();
+}
+
+static void dec_sys(DisasContext *dc, uint32_t insn)
+{
+ uint32_t op0;
+#ifdef OPENRISC_DISAS
+ uint32_t K16;
+#endif
+ op0 = extract32(insn, 16, 8);
+#ifdef OPENRISC_DISAS
+ K16 = extract32(insn, 0, 16);
+#endif
+
+ switch (op0) {
+ case 0x000: /* l.sys */
+ LOG_DIS("l.sys %d\n", K16);
+ tcg_gen_movi_tl(cpu_pc, dc->pc);
+ gen_exception(dc, EXCP_SYSCALL);
+ dc->is_jmp = DISAS_UPDATE;
+ break;
+
+ case 0x100: /* l.trap */
+ LOG_DIS("l.trap %d\n", K16);
+#if defined(CONFIG_USER_ONLY)
+ return;
+#else
+ if (dc->mem_idx == MMU_USER_IDX) {
+ gen_illegal_exception(dc);
+ return;
+ }
+ tcg_gen_movi_tl(cpu_pc, dc->pc);
+ gen_exception(dc, EXCP_TRAP);
+#endif
+ break;
+
+ case 0x300: /* l.csync */
+ LOG_DIS("l.csync\n");
+#if defined(CONFIG_USER_ONLY)
+ return;
+#else
+ if (dc->mem_idx == MMU_USER_IDX) {
+ gen_illegal_exception(dc);
+ return;
+ }
+#endif
+ break;
+
+ case 0x200: /* l.msync */
+ LOG_DIS("l.msync\n");
+#if defined(CONFIG_USER_ONLY)
+ return;
+#else
+ if (dc->mem_idx == MMU_USER_IDX) {
+ gen_illegal_exception(dc);
+ return;
+ }
+#endif
+ break;
+
+ case 0x270: /* l.psync */
+ LOG_DIS("l.psync\n");
+#if defined(CONFIG_USER_ONLY)
+ return;
+#else
+ if (dc->mem_idx == MMU_USER_IDX) {
+ gen_illegal_exception(dc);
+ return;
+ }
+#endif
+ break;
+
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+}
+
+static void dec_float(DisasContext *dc, uint32_t insn)
+{
+ uint32_t op0;
+ uint32_t ra, rb, rd;
+ op0 = extract32(insn, 0, 8);
+ ra = extract32(insn, 16, 5);
+ rb = extract32(insn, 11, 5);
+ rd = extract32(insn, 21, 5);
+
+ switch (op0) {
+ case 0x00: /* lf.add.s */
+ LOG_DIS("lf.add.s r%d, r%d, r%d\n", rd, ra, rb);
+ gen_helper_float_add_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x01: /* lf.sub.s */
+ LOG_DIS("lf.sub.s r%d, r%d, r%d\n", rd, ra, rb);
+ gen_helper_float_sub_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
+ break;
+
+
+ case 0x02: /* lf.mul.s */
+ LOG_DIS("lf.mul.s r%d, r%d, r%d\n", rd, ra, rb);
+ if (ra != 0 && rb != 0) {
+ gen_helper_float_mul_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
+ } else {
+ tcg_gen_ori_tl(fpcsr, fpcsr, FPCSR_ZF);
+ tcg_gen_movi_i32(cpu_R[rd], 0x0);
+ }
+ break;
+
+ case 0x03: /* lf.div.s */
+ LOG_DIS("lf.div.s r%d, r%d, r%d\n", rd, ra, rb);
+ gen_helper_float_div_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x04: /* lf.itof.s */
+ LOG_DIS("lf.itof r%d, r%d\n", rd, ra);
+ gen_helper_itofs(cpu_R[rd], cpu_env, cpu_R[ra]);
+ break;
+
+ case 0x05: /* lf.ftoi.s */
+ LOG_DIS("lf.ftoi r%d, r%d\n", rd, ra);
+ gen_helper_ftois(cpu_R[rd], cpu_env, cpu_R[ra]);
+ break;
+
+ case 0x06: /* lf.rem.s */
+ LOG_DIS("lf.rem.s r%d, r%d, r%d\n", rd, ra, rb);
+ gen_helper_float_rem_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x07: /* lf.madd.s */
+ LOG_DIS("lf.madd.s r%d, r%d, r%d\n", rd, ra, rb);
+ gen_helper_float_muladd_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x08: /* lf.sfeq.s */
+ LOG_DIS("lf.sfeq.s r%d, r%d\n", ra, rb);
+ gen_helper_float_eq_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x09: /* lf.sfne.s */
+ LOG_DIS("lf.sfne.s r%d, r%d\n", ra, rb);
+ gen_helper_float_ne_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x0a: /* lf.sfgt.s */
+ LOG_DIS("lf.sfgt.s r%d, r%d\n", ra, rb);
+ gen_helper_float_gt_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x0b: /* lf.sfge.s */
+ LOG_DIS("lf.sfge.s r%d, r%d\n", ra, rb);
+ gen_helper_float_ge_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x0c: /* lf.sflt.s */
+ LOG_DIS("lf.sflt.s r%d, r%d\n", ra, rb);
+ gen_helper_float_lt_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x0d: /* lf.sfle.s */
+ LOG_DIS("lf.sfle.s r%d, r%d\n", ra, rb);
+ gen_helper_float_le_s(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
+ break;
+
+/* not used yet, open it when we need or64. */
+/*#ifdef TARGET_OPENRISC64
+ case 0x10: lf.add.d
+ LOG_DIS("lf.add.d r%d, r%d, r%d\n", rd, ra, rb);
+ check_of64s(dc);
+ gen_helper_float_add_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x11: lf.sub.d
+ LOG_DIS("lf.sub.d r%d, r%d, r%d\n", rd, ra, rb);
+ check_of64s(dc);
+ gen_helper_float_sub_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x12: lf.mul.d
+ LOG_DIS("lf.mul.d r%d, r%d, r%d\n", rd, ra, rb);
+ check_of64s(dc);
+ if (ra != 0 && rb != 0) {
+ gen_helper_float_mul_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
+ } else {
+ tcg_gen_ori_tl(fpcsr, fpcsr, FPCSR_ZF);
+ tcg_gen_movi_i64(cpu_R[rd], 0x0);
+ }
+ break;
+
+ case 0x13: lf.div.d
+ LOG_DIS("lf.div.d r%d, r%d, r%d\n", rd, ra, rb);
+ check_of64s(dc);
+ gen_helper_float_div_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x14: lf.itof.d
+ LOG_DIS("lf.itof r%d, r%d\n", rd, ra);
+ check_of64s(dc);
+ gen_helper_itofd(cpu_R[rd], cpu_env, cpu_R[ra]);
+ break;
+
+ case 0x15: lf.ftoi.d
+ LOG_DIS("lf.ftoi r%d, r%d\n", rd, ra);
+ check_of64s(dc);
+ gen_helper_ftoid(cpu_R[rd], cpu_env, cpu_R[ra]);
+ break;
+
+ case 0x16: lf.rem.d
+ LOG_DIS("lf.rem.d r%d, r%d, r%d\n", rd, ra, rb);
+ check_of64s(dc);
+ gen_helper_float_rem_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x17: lf.madd.d
+ LOG_DIS("lf.madd.d r%d, r%d, r%d\n", rd, ra, rb);
+ check_of64s(dc);
+ gen_helper_float_muladd_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x18: lf.sfeq.d
+ LOG_DIS("lf.sfeq.d r%d, r%d\n", ra, rb);
+ check_of64s(dc);
+ gen_helper_float_eq_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x1a: lf.sfgt.d
+ LOG_DIS("lf.sfgt.d r%d, r%d\n", ra, rb);
+ check_of64s(dc);
+ gen_helper_float_gt_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x1b: lf.sfge.d
+ LOG_DIS("lf.sfge.d r%d, r%d\n", ra, rb);
+ check_of64s(dc);
+ gen_helper_float_ge_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x19: lf.sfne.d
+ LOG_DIS("lf.sfne.d r%d, r%d\n", ra, rb);
+ check_of64s(dc);
+ gen_helper_float_ne_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x1c: lf.sflt.d
+ LOG_DIS("lf.sflt.d r%d, r%d\n", ra, rb);
+ check_of64s(dc);
+ gen_helper_float_lt_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
+ break;
+
+ case 0x1d: lf.sfle.d
+ LOG_DIS("lf.sfle.d r%d, r%d\n", ra, rb);
+ check_of64s(dc);
+ gen_helper_float_le_d(env_btaken, cpu_env, cpu_R[ra], cpu_R[rb]);
+ break;
+#endif*/
+
+ default:
+ gen_illegal_exception(dc);
+ break;
+ }
+ wb_SR_F();
+}
+
+static void disas_openrisc_insn(DisasContext *dc, OpenRISCCPU *cpu)
+{
+ uint32_t op0;
+ uint32_t insn;
+ insn = cpu_ldl_code(&cpu->env, dc->pc);
+ op0 = extract32(insn, 26, 6);
+
+ switch (op0) {
+ case 0x06:
+ dec_M(dc, insn);
+ break;
+
+ case 0x08:
+ dec_sys(dc, insn);
+ break;
+
+ case 0x2e:
+ dec_logic(dc, insn);
+ break;
+
+ case 0x2f:
+ dec_compi(dc, insn);
+ break;
+
+ case 0x31:
+ dec_mac(dc, insn);
+ break;
+
+ case 0x32:
+ dec_float(dc, insn);
+ break;
+
+ case 0x38:
+ dec_calc(dc, insn);
+ break;
+
+ case 0x39:
+ dec_comp(dc, insn);
+ break;
+
+ default:
+ dec_misc(dc, insn);
+ break;
+ }
+}
+
+static void check_breakpoint(OpenRISCCPU *cpu, DisasContext *dc)
+{
+ CPUBreakpoint *bp;
+
+ if (unlikely(!QTAILQ_EMPTY(&cpu->env.breakpoints))) {
+ QTAILQ_FOREACH(bp, &cpu->env.breakpoints, entry) {
+ if (bp->pc == dc->pc) {
+ tcg_gen_movi_tl(cpu_pc, dc->pc);
+ gen_exception(dc, EXCP_DEBUG);
+ dc->is_jmp = DISAS_UPDATE;
+ }
+ }
+ }
}
static inline void gen_intermediate_code_internal(OpenRISCCPU *cpu,
TranslationBlock *tb,
int search_pc)
{
+ struct DisasContext ctx, *dc = &ctx;
+ uint16_t *gen_opc_end;
+ uint32_t pc_start;
+ int j, k;
+ uint32_t next_page_start;
+ int num_insns;
+ int max_insns;
+
+ qemu_log_try_set_file(stderr);
+
+ pc_start = tb->pc;
+ dc->tb = tb;
+
+ gen_opc_end = gen_opc_buf + OPC_MAX_SIZE;
+ dc->is_jmp = DISAS_NEXT;
+ dc->ppc = pc_start;
+ dc->pc = pc_start;
+ dc->flags = cpu->env.cpucfgr;
+ dc->mem_idx = cpu_mmu_index(&cpu->env);
+ dc->synced_flags = dc->tb_flags = tb->flags;
+ dc->delayed_branch = !!(dc->tb_flags & D_FLAG);
+ dc->singlestep_enabled = cpu->env.singlestep_enabled;
+ if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
+ qemu_log("-----------------------------------------\n");
+ log_cpu_state(&cpu->env, 0);
+ }
+
+ next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE;
+ k = -1;
+ num_insns = 0;
+ max_insns = tb->cflags & CF_COUNT_MASK;
+
+ if (max_insns == 0) {
+ max_insns = CF_COUNT_MASK;
+ }
+
+ gen_icount_start();
+
+ do {
+ check_breakpoint(cpu, dc);
+ if (search_pc) {
+ j = gen_opc_ptr - gen_opc_buf;
+ if (k < j) {
+ k++;
+ while (k < j) {
+ gen_opc_instr_start[k++] = 0;
+ }
+ }
+ gen_opc_pc[k] = dc->pc;
+ gen_opc_instr_start[k] = 1;
+ gen_opc_icount[k] = num_insns;
+ }
+
+ if (unlikely(qemu_loglevel_mask(CPU_LOG_TB_OP))) {
+ tcg_gen_debug_insn_start(dc->pc);
+ }
+
+ if (num_insns + 1 == max_insns && (tb->cflags & CF_LAST_IO)) {
+ gen_io_start();
+ }
+ dc->ppc = dc->pc - 4;
+ dc->npc = dc->pc + 4;
+ tcg_gen_movi_tl(cpu_ppc, dc->ppc);
+ tcg_gen_movi_tl(cpu_npc, dc->npc);
+ disas_openrisc_insn(dc, cpu);
+ dc->pc = dc->npc;
+ num_insns++;
+ /* delay slot */
+ if (dc->delayed_branch) {
+ dc->delayed_branch--;
+ if (!dc->delayed_branch) {
+ dc->tb_flags &= ~D_FLAG;
+ gen_sync_flags(dc);
+ tcg_gen_mov_tl(cpu_pc, jmp_pc);
+ tcg_gen_mov_tl(cpu_npc, jmp_pc);
+ tcg_gen_movi_tl(jmp_pc, 0);
+ tcg_gen_exit_tb(0);
+ dc->is_jmp = DISAS_JUMP;
+ break;
+ }
+ }
+ } while (!dc->is_jmp
+ && gen_opc_ptr < gen_opc_end
+ && !cpu->env.singlestep_enabled
+ && !singlestep
+ && (dc->pc < next_page_start)
+ && num_insns < max_insns);
+
+ if (tb->cflags & CF_LAST_IO) {
+ gen_io_end();
+ }
+ if (dc->is_jmp == DISAS_NEXT) {
+ dc->is_jmp = DISAS_UPDATE;
+ tcg_gen_movi_tl(cpu_pc, dc->pc);
+ }
+ if (unlikely(cpu->env.singlestep_enabled)) {
+ if (dc->is_jmp == DISAS_NEXT) {
+ tcg_gen_movi_tl(cpu_pc, dc->pc);
+ }
+ gen_exception(dc, EXCP_DEBUG);
+ } else {
+ switch (dc->is_jmp) {
+ case DISAS_NEXT:
+ gen_goto_tb(dc, 0, dc->pc);
+ break;
+ default:
+ case DISAS_JUMP:
+ break;
+ case DISAS_UPDATE:
+ /* indicate that the hash table must be used
+ to find the next TB */
+ tcg_gen_exit_tb(0);
+ break;
+ case DISAS_TB_JUMP:
+ /* nothing more to generate */
+ break;
+ }
+ }
+
+ gen_icount_end(tb, num_insns);
+ *gen_opc_ptr = INDEX_op_end;
+ if (search_pc) {
+ j = gen_opc_ptr - gen_opc_buf;
+ k++;
+ while (k <= j) {
+ gen_opc_instr_start[k++] = 0;
+ }
+ } else {
+ tb->size = dc->pc - pc_start;
+ tb->icount = num_insns;
+ }
+
+#ifdef DEBUG_DISAS
+ if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
+ qemu_log("\n");
+ log_target_disas(pc_start, dc->pc - pc_start, 0);
+ qemu_log("\nisize=%d osize=%td\n",
+ dc->pc - pc_start, gen_opc_ptr - gen_opc_buf);
+ }
+#endif
}
void gen_intermediate_code(CPUOpenRISCState *env, struct TranslationBlock *tb)