diff options
Diffstat (limited to 'target-mips/translate.c')
| -rw-r--r-- | target-mips/translate.c | 62 |
1 files changed, 45 insertions, 17 deletions
diff --git a/target-mips/translate.c b/target-mips/translate.c index 1e79c5ab7c..38dcf9e742 100644 --- a/target-mips/translate.c +++ b/target-mips/translate.c @@ -3209,45 +3209,46 @@ static inline void gen_r6_ld(target_long addr, int reg, int memidx, tcg_temp_free(t0); } -static inline void gen_pcrel(DisasContext *ctx, int rs, int16_t imm) +static inline void gen_pcrel(DisasContext *ctx, int opc, target_ulong pc, + int rs) { target_long offset; target_long addr; - switch (MASK_OPC_PCREL_TOP2BITS(ctx->opcode)) { + switch (MASK_OPC_PCREL_TOP2BITS(opc)) { case OPC_ADDIUPC: if (rs != 0) { offset = sextract32(ctx->opcode << 2, 0, 21); - addr = addr_add(ctx, ctx->pc, offset); + addr = addr_add(ctx, pc, offset); tcg_gen_movi_tl(cpu_gpr[rs], addr); } break; case R6_OPC_LWPC: offset = sextract32(ctx->opcode << 2, 0, 21); - addr = addr_add(ctx, ctx->pc, offset); + addr = addr_add(ctx, pc, offset); gen_r6_ld(addr, rs, ctx->mem_idx, MO_TESL); break; #if defined(TARGET_MIPS64) case OPC_LWUPC: check_mips_64(ctx); offset = sextract32(ctx->opcode << 2, 0, 21); - addr = addr_add(ctx, ctx->pc, offset); + addr = addr_add(ctx, pc, offset); gen_r6_ld(addr, rs, ctx->mem_idx, MO_TEUL); break; #endif default: - switch (MASK_OPC_PCREL_TOP5BITS(ctx->opcode)) { + switch (MASK_OPC_PCREL_TOP5BITS(opc)) { case OPC_AUIPC: if (rs != 0) { - offset = imm << 16; - addr = addr_add(ctx, ctx->pc, offset); + offset = sextract32(ctx->opcode, 0, 16) << 16; + addr = addr_add(ctx, pc, offset); tcg_gen_movi_tl(cpu_gpr[rs], addr); } break; case OPC_ALUIPC: if (rs != 0) { - offset = imm << 16; - addr = ~0xFFFF & addr_add(ctx, ctx->pc, offset); + offset = sextract32(ctx->opcode, 0, 16) << 16; + addr = ~0xFFFF & addr_add(ctx, pc, offset); tcg_gen_movi_tl(cpu_gpr[rs], addr); } break; @@ -3258,7 +3259,7 @@ static inline void gen_pcrel(DisasContext *ctx, int rs, int16_t imm) case R6_OPC_LDPC + (3 << 16): check_mips_64(ctx); offset = sextract32(ctx->opcode << 3, 0, 21); - addr = addr_add(ctx, (ctx->pc & ~0x7), offset); + addr = addr_add(ctx, (pc & ~0x7), offset); gen_r6_ld(addr, rs, ctx->mem_idx, MO_TEQ); break; #endif @@ -14837,9 +14838,16 @@ static void decode_micromips32_opc(CPUMIPSState *env, DisasContext *ctx) break; } break; - case ADDI32: - mips32_op = OPC_ADDI; - goto do_addi; + case ADDI32: /* AUI, LUI */ + if (ctx->insn_flags & ISA_MIPS32R6) { + /* AUI, LUI */ + gen_logic_imm(ctx, OPC_LUI, rt, rs, imm); + } else { + /* ADDI32 */ + mips32_op = OPC_ADDI; + goto do_addi; + } + break; case ADDIU32: mips32_op = OPC_ADDIU; do_addi: @@ -14968,8 +14976,28 @@ static void decode_micromips32_opc(CPUMIPSState *env, DisasContext *ctx) do_cop1: gen_cop1_ldst(ctx, mips32_op, rt, rs, imm); break; - case ADDIUPC: - { + case ADDIUPC: /* PCREL: ADDIUPC, AUIPC, ALUIPC, LWPC */ + if (ctx->insn_flags & ISA_MIPS32R6) { + /* PCREL: ADDIUPC, AUIPC, ALUIPC, LWPC */ + switch ((ctx->opcode >> 16) & 0x1f) { + case ADDIUPC_00 ... ADDIUPC_07: + gen_pcrel(ctx, OPC_ADDIUPC, ctx->pc & ~0x3, rt); + break; + case AUIPC: + gen_pcrel(ctx, OPC_AUIPC, ctx->pc, rt); + break; + case ALUIPC: + gen_pcrel(ctx, OPC_ALUIPC, ctx->pc, rt); + break; + case LWPC_08 ... LWPC_0F: + gen_pcrel(ctx, R6_OPC_LWPC, ctx->pc & ~0x3, rt); + break; + default: + generate_exception(ctx, EXCP_RI); + break; + } + } else { + /* ADDIUPC */ int reg = mmreg(ZIMM(ctx->opcode, 23, 3)); int offset = SIMM(ctx->opcode, 0, 23) << 2; @@ -19989,7 +20017,7 @@ static void decode_opc(CPUMIPSState *env, DisasContext *ctx) break; case OPC_PCREL: check_insn(ctx, ISA_MIPS32R6); - gen_pcrel(ctx, rs, imm); + gen_pcrel(ctx, ctx->opcode, ctx->pc, rs); break; default: /* Invalid */ MIPS_INVAL("major opcode"); |