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-rw-r--r--target/mips/translate.c106
1 files changed, 106 insertions, 0 deletions
diff --git a/target/mips/translate.c b/target/mips/translate.c
index 38887a1271..93fb8f32e7 100644
--- a/target/mips/translate.c
+++ b/target/mips/translate.c
@@ -427,6 +427,24 @@ enum {
OPC_EXTR_W_DSP = 0x38 | OPC_SPECIAL3,
OPC_DEXTR_W_DSP = 0x3C | OPC_SPECIAL3,
+ /* EVA */
+ OPC_LWLE = 0x19 | OPC_SPECIAL3,
+ OPC_LWRE = 0x1A | OPC_SPECIAL3,
+ OPC_CACHEE = 0x1B | OPC_SPECIAL3,
+ OPC_SBE = 0x1C | OPC_SPECIAL3,
+ OPC_SHE = 0x1D | OPC_SPECIAL3,
+ OPC_SCE = 0x1E | OPC_SPECIAL3,
+ OPC_SWE = 0x1F | OPC_SPECIAL3,
+ OPC_SWLE = 0x21 | OPC_SPECIAL3,
+ OPC_SWRE = 0x22 | OPC_SPECIAL3,
+ OPC_PREFE = 0x23 | OPC_SPECIAL3,
+ OPC_LBUE = 0x28 | OPC_SPECIAL3,
+ OPC_LHUE = 0x29 | OPC_SPECIAL3,
+ OPC_LBE = 0x2C | OPC_SPECIAL3,
+ OPC_LHE = 0x2D | OPC_SPECIAL3,
+ OPC_LLE = 0x2E | OPC_SPECIAL3,
+ OPC_LWE = 0x2F | OPC_SPECIAL3,
+
/* R6 */
R6_OPC_PREF = 0x35 | OPC_SPECIAL3,
R6_OPC_CACHE = 0x25 | OPC_SPECIAL3,
@@ -1431,6 +1449,7 @@ typedef struct DisasContext {
bool bp;
uint64_t PAMask;
bool mvh;
+ bool eva;
int CP0_LLAddr_shift;
bool ps;
bool vp;
@@ -2216,29 +2235,47 @@ static void gen_ld(DisasContext *ctx, uint32_t opc,
tcg_gen_qemu_ld_tl(t0, t0, mem_idx, MO_TESL);
gen_store_gpr(t0, rt);
break;
+ case OPC_LWE:
+ mem_idx = MIPS_HFLAG_UM;
+ /* fall through */
case OPC_LW:
tcg_gen_qemu_ld_tl(t0, t0, mem_idx, MO_TESL |
ctx->default_tcg_memop_mask);
gen_store_gpr(t0, rt);
break;
+ case OPC_LHE:
+ mem_idx = MIPS_HFLAG_UM;
+ /* fall through */
case OPC_LH:
tcg_gen_qemu_ld_tl(t0, t0, mem_idx, MO_TESW |
ctx->default_tcg_memop_mask);
gen_store_gpr(t0, rt);
break;
+ case OPC_LHUE:
+ mem_idx = MIPS_HFLAG_UM;
+ /* fall through */
case OPC_LHU:
tcg_gen_qemu_ld_tl(t0, t0, mem_idx, MO_TEUW |
ctx->default_tcg_memop_mask);
gen_store_gpr(t0, rt);
break;
+ case OPC_LBE:
+ mem_idx = MIPS_HFLAG_UM;
+ /* fall through */
case OPC_LB:
tcg_gen_qemu_ld_tl(t0, t0, mem_idx, MO_SB);
gen_store_gpr(t0, rt);
break;
+ case OPC_LBUE:
+ mem_idx = MIPS_HFLAG_UM;
+ /* fall through */
case OPC_LBU:
tcg_gen_qemu_ld_tl(t0, t0, mem_idx, MO_UB);
gen_store_gpr(t0, rt);
break;
+ case OPC_LWLE:
+ mem_idx = MIPS_HFLAG_UM;
+ /* fall through */
case OPC_LWL:
t1 = tcg_temp_new();
/* Do a byte access to possibly trigger a page
@@ -2262,6 +2299,9 @@ static void gen_ld(DisasContext *ctx, uint32_t opc,
tcg_gen_ext32s_tl(t0, t0);
gen_store_gpr(t0, rt);
break;
+ case OPC_LWRE:
+ mem_idx = MIPS_HFLAG_UM;
+ /* fall through */
case OPC_LWR:
t1 = tcg_temp_new();
/* Do a byte access to possibly trigger a page
@@ -2286,6 +2326,9 @@ static void gen_ld(DisasContext *ctx, uint32_t opc,
tcg_gen_ext32s_tl(t0, t0);
gen_store_gpr(t0, rt);
break;
+ case OPC_LLE:
+ mem_idx = MIPS_HFLAG_UM;
+ /* fall through */
case OPC_LL:
case R6_OPC_LL:
op_ld_ll(t0, t0, mem_idx, ctx);
@@ -2318,20 +2361,35 @@ static void gen_st (DisasContext *ctx, uint32_t opc, int rt,
gen_helper_0e2i(sdr, t1, t0, mem_idx);
break;
#endif
+ case OPC_SWE:
+ mem_idx = MIPS_HFLAG_UM;
+ /* fall through */
case OPC_SW:
tcg_gen_qemu_st_tl(t1, t0, mem_idx, MO_TEUL |
ctx->default_tcg_memop_mask);
break;
+ case OPC_SHE:
+ mem_idx = MIPS_HFLAG_UM;
+ /* fall through */
case OPC_SH:
tcg_gen_qemu_st_tl(t1, t0, mem_idx, MO_TEUW |
ctx->default_tcg_memop_mask);
break;
+ case OPC_SBE:
+ mem_idx = MIPS_HFLAG_UM;
+ /* fall through */
case OPC_SB:
tcg_gen_qemu_st_tl(t1, t0, mem_idx, MO_8);
break;
+ case OPC_SWLE:
+ mem_idx = MIPS_HFLAG_UM;
+ /* fall through */
case OPC_SWL:
gen_helper_0e2i(swl, t1, t0, mem_idx);
break;
+ case OPC_SWRE:
+ mem_idx = MIPS_HFLAG_UM;
+ /* fall through */
case OPC_SWR:
gen_helper_0e2i(swr, t1, t0, mem_idx);
break;
@@ -2364,6 +2422,9 @@ static void gen_st_cond (DisasContext *ctx, uint32_t opc, int rt,
op_st_scd(t1, t0, rt, mem_idx, ctx);
break;
#endif
+ case OPC_SCE:
+ mem_idx = MIPS_HFLAG_UM;
+ /* fall through */
case OPC_SC:
case R6_OPC_SC:
op_st_sc(t1, t0, rt, mem_idx, ctx);
@@ -18020,13 +18081,57 @@ static void decode_opc_special3(CPUMIPSState *env, DisasContext *ctx)
{
int rs, rt, rd, sa;
uint32_t op1, op2;
+ int16_t imm;
rs = (ctx->opcode >> 21) & 0x1f;
rt = (ctx->opcode >> 16) & 0x1f;
rd = (ctx->opcode >> 11) & 0x1f;
sa = (ctx->opcode >> 6) & 0x1f;
+ imm = sextract32(ctx->opcode, 7, 9);
op1 = MASK_SPECIAL3(ctx->opcode);
+
+ /*
+ * EVA loads and stores overlap Loongson 2E instructions decoded by
+ * decode_opc_special3_legacy(), so be careful to allow their decoding when
+ * EVA is absent.
+ */
+ if (ctx->eva) {
+ switch (op1) {
+ case OPC_LWLE ... OPC_LWRE:
+ check_insn_opc_removed(ctx, ISA_MIPS32R6);
+ /* fall through */
+ case OPC_LBUE ... OPC_LHUE:
+ case OPC_LBE ... OPC_LWE:
+ check_cp0_enabled(ctx);
+ gen_ld(ctx, op1, rt, rs, imm);
+ return;
+ case OPC_SWLE ... OPC_SWRE:
+ check_insn_opc_removed(ctx, ISA_MIPS32R6);
+ /* fall through */
+ case OPC_SBE ... OPC_SHE:
+ case OPC_SWE:
+ check_cp0_enabled(ctx);
+ gen_st(ctx, op1, rt, rs, imm);
+ return;
+ case OPC_SCE:
+ check_cp0_enabled(ctx);
+ gen_st_cond(ctx, op1, rt, rs, imm);
+ return;
+ case OPC_CACHEE:
+ check_cp0_enabled(ctx);
+ if (ctx->hflags & MIPS_HFLAG_ITC_CACHE) {
+ gen_cache_operation(ctx, rt, rs, imm);
+ }
+ /* Treat as NOP. */
+ return;
+ case OPC_PREFE:
+ check_cp0_enabled(ctx);
+ /* Treat as NOP. */
+ return;
+ }
+ }
+
switch (op1) {
case OPC_EXT:
case OPC_INS:
@@ -19925,6 +20030,7 @@ void gen_intermediate_code(CPUState *cs, struct TranslationBlock *tb)
ctx.bp = (env->CP0_Config3 >> CP0C3_BP) & 1;
ctx.PAMask = env->PAMask;
ctx.mvh = (env->CP0_Config5 >> CP0C5_MVH) & 1;
+ ctx.eva = (env->CP0_Config5 >> CP0C5_EVA) & 1;
ctx.CP0_LLAddr_shift = env->CP0_LLAddr_shift;
ctx.cmgcr = (env->CP0_Config3 >> CP0C3_CMGCR) & 1;
/* Restore delay slot state from the tb context. */
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-24 21:35:57 +0000