diff options
| -rw-r--r-- | target-mips/translate.c | 334 |
1 files changed, 220 insertions, 114 deletions
diff --git a/target-mips/translate.c b/target-mips/translate.c index baa1826bf6..056a16233e 100644 --- a/target-mips/translate.c +++ b/target-mips/translate.c @@ -17247,6 +17247,93 @@ static inline int check_msa_access(DisasContext *ctx) return 1; } +static void gen_check_zero_element(TCGv tresult, uint8_t df, uint8_t wt) +{ + /* generates tcg ops to check if any element is 0 */ + /* Note this function only works with MSA_WRLEN = 128 */ + uint64_t eval_zero_or_big = 0; + uint64_t eval_big = 0; + TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t1 = tcg_temp_new_i64(); + switch (df) { + case DF_BYTE: + eval_zero_or_big = 0x0101010101010101ULL; + eval_big = 0x8080808080808080ULL; + break; + case DF_HALF: + eval_zero_or_big = 0x0001000100010001ULL; + eval_big = 0x8000800080008000ULL; + break; + case DF_WORD: + eval_zero_or_big = 0x0000000100000001ULL; + eval_big = 0x8000000080000000ULL; + break; + case DF_DOUBLE: + eval_zero_or_big = 0x0000000000000001ULL; + eval_big = 0x8000000000000000ULL; + break; + } + tcg_gen_subi_i64(t0, msa_wr_d[wt<<1], eval_zero_or_big); + tcg_gen_andc_i64(t0, t0, msa_wr_d[wt<<1]); + tcg_gen_andi_i64(t0, t0, eval_big); + tcg_gen_subi_i64(t1, msa_wr_d[(wt<<1)+1], eval_zero_or_big); + tcg_gen_andc_i64(t1, t1, msa_wr_d[(wt<<1)+1]); + tcg_gen_andi_i64(t1, t1, eval_big); + tcg_gen_or_i64(t0, t0, t1); + /* if all bits are zero then all elements are not zero */ + /* if some bit is non-zero then some element is zero */ + tcg_gen_setcondi_i64(TCG_COND_NE, t0, t0, 0); + tcg_gen_trunc_i64_tl(tresult, t0); + tcg_temp_free_i64(t0); + tcg_temp_free_i64(t1); +} + +static void gen_msa_branch(CPUMIPSState *env, DisasContext *ctx, uint32_t op1) +{ + uint8_t df = (ctx->opcode >> 21) & 0x3; + uint8_t wt = (ctx->opcode >> 16) & 0x1f; + int64_t s16 = (int16_t)ctx->opcode; + + check_msa_access(ctx); + + if (ctx->insn_flags & ISA_MIPS32R6 && ctx->hflags & MIPS_HFLAG_BMASK) { + MIPS_DEBUG("CTI in delay / forbidden slot"); + generate_exception(ctx, EXCP_RI); + return; + } + switch (op1) { + case OPC_BZ_V: + case OPC_BNZ_V: + { + TCGv_i64 t0 = tcg_temp_new_i64(); + tcg_gen_or_i64(t0, msa_wr_d[wt<<1], msa_wr_d[(wt<<1)+1]); + tcg_gen_setcondi_i64((op1 == OPC_BZ_V) ? + TCG_COND_EQ : TCG_COND_NE, t0, t0, 0); + tcg_gen_trunc_i64_tl(bcond, t0); + tcg_temp_free_i64(t0); + } + break; + case OPC_BZ_B: + case OPC_BZ_H: + case OPC_BZ_W: + case OPC_BZ_D: + gen_check_zero_element(bcond, df, wt); + break; + case OPC_BNZ_B: + case OPC_BNZ_H: + case OPC_BNZ_W: + case OPC_BNZ_D: + gen_check_zero_element(bcond, df, wt); + tcg_gen_setcondi_tl(TCG_COND_EQ, bcond, bcond, 0); + break; + } + + ctx->btarget = ctx->pc + (s16 << 2) + 4; + + ctx->hflags |= MIPS_HFLAG_BC; + ctx->hflags |= MIPS_HFLAG_BDS32; +} + static void decode_opc (CPUMIPSState *env, DisasContext *ctx) { int32_t offset; @@ -17568,133 +17655,152 @@ static void decode_opc (CPUMIPSState *env, DisasContext *ctx) break; case OPC_CP1: - if (ctx->CP0_Config1 & (1 << CP0C1_FP)) { + op1 = MASK_CP1(ctx->opcode); + + switch (op1) { + case OPC_MFHC1: + case OPC_MTHC1: check_cp1_enabled(ctx); - op1 = MASK_CP1(ctx->opcode); - switch (op1) { - case OPC_MFHC1: - case OPC_MTHC1: - check_insn(ctx, ISA_MIPS32R2); - case OPC_MFC1: - case OPC_CFC1: - case OPC_MTC1: - case OPC_CTC1: - gen_cp1(ctx, op1, rt, rd); - break; + check_insn(ctx, ISA_MIPS32R2); + case OPC_MFC1: + case OPC_CFC1: + case OPC_MTC1: + case OPC_CTC1: + check_cp1_enabled(ctx); + gen_cp1(ctx, op1, rt, rd); + break; #if defined(TARGET_MIPS64) - case OPC_DMFC1: - case OPC_DMTC1: - check_insn(ctx, ISA_MIPS3); - gen_cp1(ctx, op1, rt, rd); - break; + case OPC_DMFC1: + case OPC_DMTC1: + check_cp1_enabled(ctx); + check_insn(ctx, ISA_MIPS3); + gen_cp1(ctx, op1, rt, rd); + break; #endif - case OPC_BC1EQZ: /* OPC_BC1ANY2 */ - if (ctx->insn_flags & ISA_MIPS32R6) { - /* OPC_BC1EQZ */ - gen_compute_branch1_r6(ctx, MASK_CP1(ctx->opcode), - rt, imm << 2); - } else { - /* OPC_BC1ANY2 */ - check_cop1x(ctx); - check_insn(ctx, ASE_MIPS3D); - gen_compute_branch1(ctx, MASK_BC1(ctx->opcode), - (rt >> 2) & 0x7, imm << 2); - } - break; - case OPC_BC1NEZ: - check_insn(ctx, ISA_MIPS32R6); + case OPC_BC1EQZ: /* OPC_BC1ANY2 */ + check_cp1_enabled(ctx); + if (ctx->insn_flags & ISA_MIPS32R6) { + /* OPC_BC1EQZ */ gen_compute_branch1_r6(ctx, MASK_CP1(ctx->opcode), rt, imm << 2); - break; - case OPC_BC1ANY4: - check_insn_opc_removed(ctx, ISA_MIPS32R6); + } else { + /* OPC_BC1ANY2 */ check_cop1x(ctx); check_insn(ctx, ASE_MIPS3D); - /* fall through */ - case OPC_BC1: - check_insn_opc_removed(ctx, ISA_MIPS32R6); gen_compute_branch1(ctx, MASK_BC1(ctx->opcode), (rt >> 2) & 0x7, imm << 2); - break; - case OPC_PS_FMT: - check_insn_opc_removed(ctx, ISA_MIPS32R6); - case OPC_S_FMT: - case OPC_D_FMT: - gen_farith(ctx, ctx->opcode & FOP(0x3f, 0x1f), rt, rd, sa, - (imm >> 8) & 0x7); - break; - case OPC_W_FMT: - case OPC_L_FMT: - { - int r6_op = ctx->opcode & FOP(0x3f, 0x1f); - if (ctx->insn_flags & ISA_MIPS32R6) { - switch (r6_op) { - case R6_OPC_CMP_AF_S: - case R6_OPC_CMP_UN_S: - case R6_OPC_CMP_EQ_S: - case R6_OPC_CMP_UEQ_S: - case R6_OPC_CMP_LT_S: - case R6_OPC_CMP_ULT_S: - case R6_OPC_CMP_LE_S: - case R6_OPC_CMP_ULE_S: - case R6_OPC_CMP_SAF_S: - case R6_OPC_CMP_SUN_S: - case R6_OPC_CMP_SEQ_S: - case R6_OPC_CMP_SEUQ_S: - case R6_OPC_CMP_SLT_S: - case R6_OPC_CMP_SULT_S: - case R6_OPC_CMP_SLE_S: - case R6_OPC_CMP_SULE_S: - case R6_OPC_CMP_OR_S: - case R6_OPC_CMP_UNE_S: - case R6_OPC_CMP_NE_S: - case R6_OPC_CMP_SOR_S: - case R6_OPC_CMP_SUNE_S: - case R6_OPC_CMP_SNE_S: - gen_r6_cmp_s(ctx, ctx->opcode & 0x1f, rt, rd, sa); - break; - case R6_OPC_CMP_AF_D: - case R6_OPC_CMP_UN_D: - case R6_OPC_CMP_EQ_D: - case R6_OPC_CMP_UEQ_D: - case R6_OPC_CMP_LT_D: - case R6_OPC_CMP_ULT_D: - case R6_OPC_CMP_LE_D: - case R6_OPC_CMP_ULE_D: - case R6_OPC_CMP_SAF_D: - case R6_OPC_CMP_SUN_D: - case R6_OPC_CMP_SEQ_D: - case R6_OPC_CMP_SEUQ_D: - case R6_OPC_CMP_SLT_D: - case R6_OPC_CMP_SULT_D: - case R6_OPC_CMP_SLE_D: - case R6_OPC_CMP_SULE_D: - case R6_OPC_CMP_OR_D: - case R6_OPC_CMP_UNE_D: - case R6_OPC_CMP_NE_D: - case R6_OPC_CMP_SOR_D: - case R6_OPC_CMP_SUNE_D: - case R6_OPC_CMP_SNE_D: - gen_r6_cmp_d(ctx, ctx->opcode & 0x1f, rt, rd, sa); - break; - default: - gen_farith(ctx, ctx->opcode & FOP(0x3f, 0x1f), rt, rd, sa, - (imm >> 8) & 0x7); - break; - } - } else { + } + break; + case OPC_BC1NEZ: + check_cp1_enabled(ctx); + check_insn(ctx, ISA_MIPS32R6); + gen_compute_branch1_r6(ctx, MASK_CP1(ctx->opcode), + rt, imm << 2); + break; + case OPC_BC1ANY4: + check_cp1_enabled(ctx); + check_insn_opc_removed(ctx, ISA_MIPS32R6); + check_cop1x(ctx); + check_insn(ctx, ASE_MIPS3D); + /* fall through */ + case OPC_BC1: + check_cp1_enabled(ctx); + check_insn_opc_removed(ctx, ISA_MIPS32R6); + gen_compute_branch1(ctx, MASK_BC1(ctx->opcode), + (rt >> 2) & 0x7, imm << 2); + break; + case OPC_PS_FMT: + check_cp1_enabled(ctx); + check_insn_opc_removed(ctx, ISA_MIPS32R6); + case OPC_S_FMT: + case OPC_D_FMT: + check_cp1_enabled(ctx); + gen_farith(ctx, ctx->opcode & FOP(0x3f, 0x1f), rt, rd, sa, + (imm >> 8) & 0x7); + break; + case OPC_W_FMT: + case OPC_L_FMT: + { + int r6_op = ctx->opcode & FOP(0x3f, 0x1f); + check_cp1_enabled(ctx); + if (ctx->insn_flags & ISA_MIPS32R6) { + switch (r6_op) { + case R6_OPC_CMP_AF_S: + case R6_OPC_CMP_UN_S: + case R6_OPC_CMP_EQ_S: + case R6_OPC_CMP_UEQ_S: + case R6_OPC_CMP_LT_S: + case R6_OPC_CMP_ULT_S: + case R6_OPC_CMP_LE_S: + case R6_OPC_CMP_ULE_S: + case R6_OPC_CMP_SAF_S: + case R6_OPC_CMP_SUN_S: + case R6_OPC_CMP_SEQ_S: + case R6_OPC_CMP_SEUQ_S: + case R6_OPC_CMP_SLT_S: + case R6_OPC_CMP_SULT_S: + case R6_OPC_CMP_SLE_S: + case R6_OPC_CMP_SULE_S: + case R6_OPC_CMP_OR_S: + case R6_OPC_CMP_UNE_S: + case R6_OPC_CMP_NE_S: + case R6_OPC_CMP_SOR_S: + case R6_OPC_CMP_SUNE_S: + case R6_OPC_CMP_SNE_S: + gen_r6_cmp_s(ctx, ctx->opcode & 0x1f, rt, rd, sa); + break; + case R6_OPC_CMP_AF_D: + case R6_OPC_CMP_UN_D: + case R6_OPC_CMP_EQ_D: + case R6_OPC_CMP_UEQ_D: + case R6_OPC_CMP_LT_D: + case R6_OPC_CMP_ULT_D: + case R6_OPC_CMP_LE_D: + case R6_OPC_CMP_ULE_D: + case R6_OPC_CMP_SAF_D: + case R6_OPC_CMP_SUN_D: + case R6_OPC_CMP_SEQ_D: + case R6_OPC_CMP_SEUQ_D: + case R6_OPC_CMP_SLT_D: + case R6_OPC_CMP_SULT_D: + case R6_OPC_CMP_SLE_D: + case R6_OPC_CMP_SULE_D: + case R6_OPC_CMP_OR_D: + case R6_OPC_CMP_UNE_D: + case R6_OPC_CMP_NE_D: + case R6_OPC_CMP_SOR_D: + case R6_OPC_CMP_SUNE_D: + case R6_OPC_CMP_SNE_D: + gen_r6_cmp_d(ctx, ctx->opcode & 0x1f, rt, rd, sa); + break; + default: gen_farith(ctx, ctx->opcode & FOP(0x3f, 0x1f), rt, rd, sa, (imm >> 8) & 0x7); + break; } - break; - } - default: - MIPS_INVAL("cp1"); - generate_exception (ctx, EXCP_RI); - break; + } else { + gen_farith(ctx, ctx->opcode & FOP(0x3f, 0x1f), rt, rd, sa, + (imm >> 8) & 0x7); } - } else { - generate_exception_err(ctx, EXCP_CpU, 1); + break; + } + case OPC_BZ_V: + case OPC_BNZ_V: + case OPC_BZ_B: + case OPC_BZ_H: + case OPC_BZ_W: + case OPC_BZ_D: + case OPC_BNZ_B: + case OPC_BNZ_H: + case OPC_BNZ_W: + case OPC_BNZ_D: + check_insn(ctx, ASE_MSA); + gen_msa_branch(env, ctx, op1); + break; + default: + MIPS_INVAL("cp1"); + generate_exception(ctx, EXCP_RI); + break; } break; |