diff options
Diffstat (limited to 'target-mips/translate.c')
| -rw-r--r-- | target-mips/translate.c | 379 |
1 files changed, 376 insertions, 3 deletions
diff --git a/target-mips/translate.c b/target-mips/translate.c index 4e04e97ce2..fa79d4945b 100644 --- a/target-mips/translate.c +++ b/target-mips/translate.c @@ -446,6 +446,103 @@ enum { OPC_BC2 = (0x08 << 21) | OPC_CP2, }; +#define MASK_LMI(op) (MASK_OP_MAJOR(op) | (op & (0x1F << 21)) | (op & 0x1F)) + +enum { + OPC_PADDSH = (24 << 21) | (0x00) | OPC_CP2, + OPC_PADDUSH = (25 << 21) | (0x00) | OPC_CP2, + OPC_PADDH = (26 << 21) | (0x00) | OPC_CP2, + OPC_PADDW = (27 << 21) | (0x00) | OPC_CP2, + OPC_PADDSB = (28 << 21) | (0x00) | OPC_CP2, + OPC_PADDUSB = (29 << 21) | (0x00) | OPC_CP2, + OPC_PADDB = (30 << 21) | (0x00) | OPC_CP2, + OPC_PADDD = (31 << 21) | (0x00) | OPC_CP2, + + OPC_PSUBSH = (24 << 21) | (0x01) | OPC_CP2, + OPC_PSUBUSH = (25 << 21) | (0x01) | OPC_CP2, + OPC_PSUBH = (26 << 21) | (0x01) | OPC_CP2, + OPC_PSUBW = (27 << 21) | (0x01) | OPC_CP2, + OPC_PSUBSB = (28 << 21) | (0x01) | OPC_CP2, + OPC_PSUBUSB = (29 << 21) | (0x01) | OPC_CP2, + OPC_PSUBB = (30 << 21) | (0x01) | OPC_CP2, + OPC_PSUBD = (31 << 21) | (0x01) | OPC_CP2, + + OPC_PSHUFH = (24 << 21) | (0x02) | OPC_CP2, + OPC_PACKSSWH = (25 << 21) | (0x02) | OPC_CP2, + OPC_PACKSSHB = (26 << 21) | (0x02) | OPC_CP2, + OPC_PACKUSHB = (27 << 21) | (0x02) | OPC_CP2, + OPC_XOR_CP2 = (28 << 21) | (0x02) | OPC_CP2, + OPC_NOR_CP2 = (29 << 21) | (0x02) | OPC_CP2, + OPC_AND_CP2 = (30 << 21) | (0x02) | OPC_CP2, + OPC_PANDN = (31 << 21) | (0x02) | OPC_CP2, + + OPC_PUNPCKLHW = (24 << 21) | (0x03) | OPC_CP2, + OPC_PUNPCKHHW = (25 << 21) | (0x03) | OPC_CP2, + OPC_PUNPCKLBH = (26 << 21) | (0x03) | OPC_CP2, + OPC_PUNPCKHBH = (27 << 21) | (0x03) | OPC_CP2, + OPC_PINSRH_0 = (28 << 21) | (0x03) | OPC_CP2, + OPC_PINSRH_1 = (29 << 21) | (0x03) | OPC_CP2, + OPC_PINSRH_2 = (30 << 21) | (0x03) | OPC_CP2, + OPC_PINSRH_3 = (31 << 21) | (0x03) | OPC_CP2, + + OPC_PAVGH = (24 << 21) | (0x08) | OPC_CP2, + OPC_PAVGB = (25 << 21) | (0x08) | OPC_CP2, + OPC_PMAXSH = (26 << 21) | (0x08) | OPC_CP2, + OPC_PMINSH = (27 << 21) | (0x08) | OPC_CP2, + OPC_PMAXUB = (28 << 21) | (0x08) | OPC_CP2, + OPC_PMINUB = (29 << 21) | (0x08) | OPC_CP2, + + OPC_PCMPEQW = (24 << 21) | (0x09) | OPC_CP2, + OPC_PCMPGTW = (25 << 21) | (0x09) | OPC_CP2, + OPC_PCMPEQH = (26 << 21) | (0x09) | OPC_CP2, + OPC_PCMPGTH = (27 << 21) | (0x09) | OPC_CP2, + OPC_PCMPEQB = (28 << 21) | (0x09) | OPC_CP2, + OPC_PCMPGTB = (29 << 21) | (0x09) | OPC_CP2, + + OPC_PSLLW = (24 << 21) | (0x0A) | OPC_CP2, + OPC_PSLLH = (25 << 21) | (0x0A) | OPC_CP2, + OPC_PMULLH = (26 << 21) | (0x0A) | OPC_CP2, + OPC_PMULHH = (27 << 21) | (0x0A) | OPC_CP2, + OPC_PMULUW = (28 << 21) | (0x0A) | OPC_CP2, + OPC_PMULHUH = (29 << 21) | (0x0A) | OPC_CP2, + + OPC_PSRLW = (24 << 21) | (0x0B) | OPC_CP2, + OPC_PSRLH = (25 << 21) | (0x0B) | OPC_CP2, + OPC_PSRAW = (26 << 21) | (0x0B) | OPC_CP2, + OPC_PSRAH = (27 << 21) | (0x0B) | OPC_CP2, + OPC_PUNPCKLWD = (28 << 21) | (0x0B) | OPC_CP2, + OPC_PUNPCKHWD = (29 << 21) | (0x0B) | OPC_CP2, + + OPC_ADDU_CP2 = (24 << 21) | (0x0C) | OPC_CP2, + OPC_OR_CP2 = (25 << 21) | (0x0C) | OPC_CP2, + OPC_ADD_CP2 = (26 << 21) | (0x0C) | OPC_CP2, + OPC_DADD_CP2 = (27 << 21) | (0x0C) | OPC_CP2, + OPC_SEQU_CP2 = (28 << 21) | (0x0C) | OPC_CP2, + OPC_SEQ_CP2 = (29 << 21) | (0x0C) | OPC_CP2, + + OPC_SUBU_CP2 = (24 << 21) | (0x0D) | OPC_CP2, + OPC_PASUBUB = (25 << 21) | (0x0D) | OPC_CP2, + OPC_SUB_CP2 = (26 << 21) | (0x0D) | OPC_CP2, + OPC_DSUB_CP2 = (27 << 21) | (0x0D) | OPC_CP2, + OPC_SLTU_CP2 = (28 << 21) | (0x0D) | OPC_CP2, + OPC_SLT_CP2 = (29 << 21) | (0x0D) | OPC_CP2, + + OPC_SLL_CP2 = (24 << 21) | (0x0E) | OPC_CP2, + OPC_DSLL_CP2 = (25 << 21) | (0x0E) | OPC_CP2, + OPC_PEXTRH = (26 << 21) | (0x0E) | OPC_CP2, + OPC_PMADDHW = (27 << 21) | (0x0E) | OPC_CP2, + OPC_SLEU_CP2 = (28 << 21) | (0x0E) | OPC_CP2, + OPC_SLE_CP2 = (29 << 21) | (0x0E) | OPC_CP2, + + OPC_SRL_CP2 = (24 << 21) | (0x0F) | OPC_CP2, + OPC_DSRL_CP2 = (25 << 21) | (0x0F) | OPC_CP2, + OPC_SRA_CP2 = (26 << 21) | (0x0F) | OPC_CP2, + OPC_DSRA_CP2 = (27 << 21) | (0x0F) | OPC_CP2, + OPC_BIADD = (28 << 21) | (0x0F) | OPC_CP2, + OPC_PMOVMSKB = (29 << 21) | (0x0F) | OPC_CP2, +}; + + #define MASK_CP3(op) MASK_OP_MAJOR(op) | (op & 0x3F) enum { @@ -2388,8 +2485,8 @@ static void gen_cl (DisasContext *ctx, uint32_t opc, } /* Godson integer instructions */ -static void gen_loongson_integer (DisasContext *ctx, uint32_t opc, - int rd, int rs, int rt) +static void gen_loongson_integer(DisasContext *ctx, uint32_t opc, + int rd, int rs, int rt) { const char *opn = "loongson"; TCGv t0, t1; @@ -2602,6 +2699,278 @@ static void gen_loongson_integer (DisasContext *ctx, uint32_t opc, tcg_temp_free(t1); } +/* Loongson multimedia instructions */ +static void gen_loongson_multimedia(DisasContext *ctx, int rd, int rs, int rt) +{ + const char *opn = "loongson_cp2"; + uint32_t opc, shift_max; + TCGv_i64 t0, t1; + + opc = MASK_LMI(ctx->opcode); + switch (opc) { + case OPC_ADD_CP2: + case OPC_SUB_CP2: + case OPC_DADD_CP2: + case OPC_DSUB_CP2: + t0 = tcg_temp_local_new_i64(); + t1 = tcg_temp_local_new_i64(); + break; + default: + t0 = tcg_temp_new_i64(); + t1 = tcg_temp_new_i64(); + break; + } + + gen_load_fpr64(ctx, t0, rs); + gen_load_fpr64(ctx, t1, rt); + +#define LMI_HELPER(UP, LO) \ + case OPC_##UP: gen_helper_##LO(t0, t0, t1); opn = #LO; break +#define LMI_HELPER_1(UP, LO) \ + case OPC_##UP: gen_helper_##LO(t0, t0); opn = #LO; break +#define LMI_DIRECT(UP, LO, OP) \ + case OPC_##UP: tcg_gen_##OP##_i64(t0, t0, t1); opn = #LO; break + + switch (opc) { + LMI_HELPER(PADDSH, paddsh); + LMI_HELPER(PADDUSH, paddush); + LMI_HELPER(PADDH, paddh); + LMI_HELPER(PADDW, paddw); + LMI_HELPER(PADDSB, paddsb); + LMI_HELPER(PADDUSB, paddusb); + LMI_HELPER(PADDB, paddb); + + LMI_HELPER(PSUBSH, psubsh); + LMI_HELPER(PSUBUSH, psubush); + LMI_HELPER(PSUBH, psubh); + LMI_HELPER(PSUBW, psubw); + LMI_HELPER(PSUBSB, psubsb); + LMI_HELPER(PSUBUSB, psubusb); + LMI_HELPER(PSUBB, psubb); + + LMI_HELPER(PSHUFH, pshufh); + LMI_HELPER(PACKSSWH, packsswh); + LMI_HELPER(PACKSSHB, packsshb); + LMI_HELPER(PACKUSHB, packushb); + + LMI_HELPER(PUNPCKLHW, punpcklhw); + LMI_HELPER(PUNPCKHHW, punpckhhw); + LMI_HELPER(PUNPCKLBH, punpcklbh); + LMI_HELPER(PUNPCKHBH, punpckhbh); + LMI_HELPER(PUNPCKLWD, punpcklwd); + LMI_HELPER(PUNPCKHWD, punpckhwd); + + LMI_HELPER(PAVGH, pavgh); + LMI_HELPER(PAVGB, pavgb); + LMI_HELPER(PMAXSH, pmaxsh); + LMI_HELPER(PMINSH, pminsh); + LMI_HELPER(PMAXUB, pmaxub); + LMI_HELPER(PMINUB, pminub); + + LMI_HELPER(PCMPEQW, pcmpeqw); + LMI_HELPER(PCMPGTW, pcmpgtw); + LMI_HELPER(PCMPEQH, pcmpeqh); + LMI_HELPER(PCMPGTH, pcmpgth); + LMI_HELPER(PCMPEQB, pcmpeqb); + LMI_HELPER(PCMPGTB, pcmpgtb); + + LMI_HELPER(PSLLW, psllw); + LMI_HELPER(PSLLH, psllh); + LMI_HELPER(PSRLW, psrlw); + LMI_HELPER(PSRLH, psrlh); + LMI_HELPER(PSRAW, psraw); + LMI_HELPER(PSRAH, psrah); + + LMI_HELPER(PMULLH, pmullh); + LMI_HELPER(PMULHH, pmulhh); + LMI_HELPER(PMULHUH, pmulhuh); + LMI_HELPER(PMADDHW, pmaddhw); + + LMI_HELPER(PASUBUB, pasubub); + LMI_HELPER_1(BIADD, biadd); + LMI_HELPER_1(PMOVMSKB, pmovmskb); + + LMI_DIRECT(PADDD, paddd, add); + LMI_DIRECT(PSUBD, psubd, sub); + LMI_DIRECT(XOR_CP2, xor, xor); + LMI_DIRECT(NOR_CP2, nor, nor); + LMI_DIRECT(AND_CP2, and, and); + LMI_DIRECT(PANDN, pandn, andc); + LMI_DIRECT(OR, or, or); + + case OPC_PINSRH_0: + tcg_gen_deposit_i64(t0, t0, t1, 0, 16); + opn = "pinsrh_0"; + break; + case OPC_PINSRH_1: + tcg_gen_deposit_i64(t0, t0, t1, 16, 16); + opn = "pinsrh_1"; + break; + case OPC_PINSRH_2: + tcg_gen_deposit_i64(t0, t0, t1, 32, 16); + opn = "pinsrh_2"; + break; + case OPC_PINSRH_3: + tcg_gen_deposit_i64(t0, t0, t1, 48, 16); + opn = "pinsrh_3"; + break; + + case OPC_PEXTRH: + tcg_gen_andi_i64(t1, t1, 3); + tcg_gen_shli_i64(t1, t1, 4); + tcg_gen_shr_i64(t0, t0, t1); + tcg_gen_ext16u_i64(t0, t0); + opn = "pextrh"; + break; + + case OPC_ADDU_CP2: + tcg_gen_add_i64(t0, t0, t1); + tcg_gen_ext32s_i64(t0, t0); + opn = "addu"; + break; + case OPC_SUBU_CP2: + tcg_gen_sub_i64(t0, t0, t1); + tcg_gen_ext32s_i64(t0, t0); + opn = "addu"; + break; + + case OPC_SLL_CP2: + opn = "sll"; + shift_max = 32; + goto do_shift; + case OPC_SRL_CP2: + opn = "srl"; + shift_max = 32; + goto do_shift; + case OPC_SRA_CP2: + opn = "sra"; + shift_max = 32; + goto do_shift; + case OPC_DSLL_CP2: + opn = "dsll"; + shift_max = 64; + goto do_shift; + case OPC_DSRL_CP2: + opn = "dsrl"; + shift_max = 64; + goto do_shift; + case OPC_DSRA_CP2: + opn = "dsra"; + shift_max = 64; + goto do_shift; + do_shift: + /* Make sure shift count isn't TCG undefined behaviour. */ + tcg_gen_andi_i64(t1, t1, shift_max - 1); + + switch (opc) { + case OPC_SLL_CP2: + case OPC_DSLL_CP2: + tcg_gen_shl_i64(t0, t0, t1); + break; + case OPC_SRA_CP2: + case OPC_DSRA_CP2: + /* Since SRA is UndefinedResult without sign-extended inputs, + we can treat SRA and DSRA the same. */ + tcg_gen_sar_i64(t0, t0, t1); + break; + case OPC_SRL_CP2: + /* We want to shift in zeros for SRL; zero-extend first. */ + tcg_gen_ext32u_i64(t0, t0); + /* FALLTHRU */ + case OPC_DSRL_CP2: + tcg_gen_shr_i64(t0, t0, t1); + break; + } + + if (shift_max == 32) { + tcg_gen_ext32s_i64(t0, t0); + } + + /* Shifts larger than MAX produce zero. */ + tcg_gen_setcondi_i64(TCG_COND_LTU, t1, t1, shift_max); + tcg_gen_neg_i64(t1, t1); + tcg_gen_and_i64(t0, t0, t1); + break; + + case OPC_ADD_CP2: + case OPC_DADD_CP2: + { + TCGv_i64 t2 = tcg_temp_new_i64(); + int lab = gen_new_label(); + + tcg_gen_mov_i64(t2, t0); + tcg_gen_add_i64(t0, t1, t2); + if (opc == OPC_ADD_CP2) { + tcg_gen_ext32s_i64(t0, t0); + } + tcg_gen_xor_i64(t1, t1, t2); + tcg_gen_xor_i64(t2, t2, t0); + tcg_gen_andc_i64(t1, t2, t1); + tcg_temp_free_i64(t2); + tcg_gen_brcondi_i64(TCG_COND_GE, t1, 0, lab); + generate_exception(ctx, EXCP_OVERFLOW); + gen_set_label(lab); + + opn = (opc == OPC_ADD_CP2 ? "add" : "dadd"); + break; + } + + case OPC_SUB_CP2: + case OPC_DSUB_CP2: + { + TCGv_i64 t2 = tcg_temp_new_i64(); + int lab = gen_new_label(); + + tcg_gen_mov_i64(t2, t0); + tcg_gen_sub_i64(t0, t1, t2); + if (opc == OPC_SUB_CP2) { + tcg_gen_ext32s_i64(t0, t0); + } + tcg_gen_xor_i64(t1, t1, t2); + tcg_gen_xor_i64(t2, t2, t0); + tcg_gen_and_i64(t1, t1, t2); + tcg_temp_free_i64(t2); + tcg_gen_brcondi_i64(TCG_COND_GE, t1, 0, lab); + generate_exception(ctx, EXCP_OVERFLOW); + gen_set_label(lab); + + opn = (opc == OPC_SUB_CP2 ? "sub" : "dsub"); + break; + } + + case OPC_PMULUW: + tcg_gen_ext32u_i64(t0, t0); + tcg_gen_ext32u_i64(t1, t1); + tcg_gen_mul_i64(t0, t0, t1); + opn = "pmuluw"; + break; + + case OPC_SEQU_CP2: + case OPC_SEQ_CP2: + case OPC_SLTU_CP2: + case OPC_SLT_CP2: + case OPC_SLEU_CP2: + case OPC_SLE_CP2: + /* ??? Document is unclear: Set FCC[CC]. Does that mean the + FD field is the CC field? */ + default: + MIPS_INVAL(opn); + generate_exception(ctx, EXCP_RI); + return; + } + +#undef LMI_HELPER +#undef LMI_DIRECT + + gen_store_fpr64(ctx, t0, rd); + + (void)opn; /* avoid a compiler warning */ + MIPS_DEBUG("%s %s, %s, %s", opn, + fregnames[rd], fregnames[rs], fregnames[rt]); + tcg_temp_free_i64(t0); + tcg_temp_free_i64(t1); +} + /* Traps */ static void gen_trap (DisasContext *ctx, uint32_t opc, int rs, int rt, int16_t imm) @@ -12327,10 +12696,14 @@ static void decode_opc (CPUMIPSState *env, DisasContext *ctx, int *is_branch) case OPC_LDC2: case OPC_SWC2: case OPC_SDC2: - case OPC_CP2: /* COP2: Not implemented. */ generate_exception_err(ctx, EXCP_CpU, 2); break; + case OPC_CP2: + check_insn(env, ctx, INSN_LOONGSON2F); + /* Note that these instructions use different fields. */ + gen_loongson_multimedia(ctx, sa, rd, rt); + break; case OPC_CP3: if (env->CP0_Config1 & (1 << CP0C1_FP)) { |