diff options
Diffstat (limited to 'target')
| -rw-r--r-- | target/mips/translate.c | 239 |
1 files changed, 205 insertions, 34 deletions
diff --git a/target/mips/translate.c b/target/mips/translate.c index e3a5a73..a339f72 100644 --- a/target/mips/translate.c +++ b/target/mips/translate.c @@ -1678,11 +1678,11 @@ enum { * ├─ 100111 ─ OPC_MXU__POOL16 ─┬─ 000 ─ OPC_MXU_D32SARW * │ ├─ 001 ─ OPC_MXU_S32ALN * │ ├─ 010 ─ OPC_MXU_S32ALNI - * │ ├─ 011 ─ OPC_MXU_S32NOR - * │ ├─ 100 ─ OPC_MXU_S32AND - * │ ├─ 101 ─ OPC_MXU_S32OR - * │ ├─ 110 ─ OPC_MXU_S32XOR - * │ └─ 111 ─ OPC_MXU_S32LUI + * │ ├─ 011 ─ OPC_MXU_S32LUI + * │ ├─ 100 ─ OPC_MXU_S32NOR + * │ ├─ 101 ─ OPC_MXU_S32AND + * │ ├─ 110 ─ OPC_MXU_S32OR + * │ └─ 111 ─ OPC_MXU_S32XOR * │ * │ 7..5 * ├─ 101000 ─ OPC_MXU__POOL17 ─┬─ 000 ─ OPC_MXU_LXB @@ -1953,11 +1953,11 @@ enum { OPC_MXU_D32SARW = 0x00, OPC_MXU_S32ALN = 0x01, OPC_MXU_S32ALNI = 0x02, - OPC_MXU_S32NOR = 0x03, - OPC_MXU_S32AND = 0x04, - OPC_MXU_S32OR = 0x05, - OPC_MXU_S32XOR = 0x06, - OPC_MXU_S32LUI = 0x07, + OPC_MXU_S32LUI = 0x03, + OPC_MXU_S32NOR = 0x04, + OPC_MXU_S32AND = 0x05, + OPC_MXU_S32OR = 0x06, + OPC_MXU_S32XOR = 0x07, }; /* @@ -2455,9 +2455,11 @@ static TCGv_i32 fpu_fcr0, fpu_fcr31; static TCGv_i64 fpu_f64[32]; static TCGv_i64 msa_wr_d[64]; +#if !defined(TARGET_MIPS64) /* MXU registers */ static TCGv mxu_gpr[NUMBER_OF_MXU_REGISTERS - 1]; static TCGv mxu_CR; +#endif #include "exec/gen-icount.h" @@ -2581,10 +2583,12 @@ static const char * const msaregnames[] = { "w30.d0", "w30.d1", "w31.d0", "w31.d1", }; +#if !defined(TARGET_MIPS64) static const char * const mxuregnames[] = { "XR1", "XR2", "XR3", "XR4", "XR5", "XR6", "XR7", "XR8", "XR9", "XR10", "XR11", "XR12", "XR13", "XR14", "XR15", "MXU_CR", }; +#endif #define LOG_DISAS(...) \ do { \ @@ -2667,6 +2671,7 @@ static inline void gen_store_srsgpr (int from, int to) } } +#if !defined(TARGET_MIPS64) /* MXU General purpose registers moves. */ static inline void gen_load_mxu_gpr(TCGv t, unsigned int reg) { @@ -2695,6 +2700,7 @@ static inline void gen_store_mxu_cr(TCGv t) /* TODO: Add handling of RW rules for MXU_CR. */ tcg_gen_mov_tl(mxu_CR, t); } +#endif /* Tests */ @@ -24235,6 +24241,8 @@ static void decode_opc_special(CPUMIPSState *env, DisasContext *ctx) } +#if !defined(TARGET_MIPS64) + /* MXU accumulate add/subtract 1-bit pattern 'aptn1' */ #define MXU_APTN1_A 0 #define MXU_APTN1_S 1 @@ -24650,6 +24658,172 @@ static void gen_mxu_s32ldd_s32lddr(DisasContext *ctx) /* + * MXU instruction category: logic + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * S32NOR S32AND S32OR S32XOR + */ + +/* + * S32NOR XRa, XRb, XRc + * Update XRa with the result of logical bitwise 'nor' operation + * applied to the content of XRb and XRc. + * + * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * +-----------+---------+-----+-------+-------+-------+-----------+ + * | SPECIAL2 |0 0 0 0 0| opc | XRc | XRb | XRa |MXU__POOL16| + * +-----------+---------+-----+-------+-------+-------+-----------+ + */ +static void gen_mxu_S32NOR(DisasContext *ctx) +{ + uint32_t pad, XRc, XRb, XRa; + + pad = extract32(ctx->opcode, 21, 5); + XRc = extract32(ctx->opcode, 14, 4); + XRb = extract32(ctx->opcode, 10, 4); + XRa = extract32(ctx->opcode, 6, 4); + + if (unlikely(pad != 0)) { + /* opcode padding incorrect -> do nothing */ + } else if (unlikely(XRa == 0)) { + /* destination is zero register -> do nothing */ + } else if (unlikely((XRb == 0) && (XRc == 0))) { + /* both operands zero registers -> just set destination to all 1s */ + tcg_gen_movi_i32(mxu_gpr[XRa - 1], 0xFFFFFFFF); + } else if (unlikely(XRb == 0)) { + /* XRb zero register -> just set destination to the negation of XRc */ + tcg_gen_not_i32(mxu_gpr[XRa - 1], mxu_gpr[XRc - 1]); + } else if (unlikely(XRc == 0)) { + /* XRa zero register -> just set destination to the negation of XRb */ + tcg_gen_not_i32(mxu_gpr[XRa - 1], mxu_gpr[XRb - 1]); + } else if (unlikely(XRb == XRc)) { + /* both operands same -> just set destination to the negation of XRb */ + tcg_gen_not_i32(mxu_gpr[XRa - 1], mxu_gpr[XRb - 1]); + } else { + /* the most general case */ + tcg_gen_nor_i32(mxu_gpr[XRa - 1], mxu_gpr[XRb - 1], mxu_gpr[XRc - 1]); + } +} + +/* + * S32AND XRa, XRb, XRc + * Update XRa with the result of logical bitwise 'and' operation + * applied to the content of XRb and XRc. + * + * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * +-----------+---------+-----+-------+-------+-------+-----------+ + * | SPECIAL2 |0 0 0 0 0| opc | XRc | XRb | XRa |MXU__POOL16| + * +-----------+---------+-----+-------+-------+-------+-----------+ + */ +static void gen_mxu_S32AND(DisasContext *ctx) +{ + uint32_t pad, XRc, XRb, XRa; + + pad = extract32(ctx->opcode, 21, 5); + XRc = extract32(ctx->opcode, 14, 4); + XRb = extract32(ctx->opcode, 10, 4); + XRa = extract32(ctx->opcode, 6, 4); + + if (unlikely(pad != 0)) { + /* opcode padding incorrect -> do nothing */ + } else if (unlikely(XRa == 0)) { + /* destination is zero register -> do nothing */ + } else if (unlikely((XRb == 0) || (XRc == 0))) { + /* one of operands zero register -> just set destination to all 0s */ + tcg_gen_movi_i32(mxu_gpr[XRa - 1], 0); + } else if (unlikely(XRb == XRc)) { + /* both operands same -> just set destination to one of them */ + tcg_gen_mov_i32(mxu_gpr[XRa - 1], mxu_gpr[XRb - 1]); + } else { + /* the most general case */ + tcg_gen_and_i32(mxu_gpr[XRa - 1], mxu_gpr[XRb - 1], mxu_gpr[XRc - 1]); + } +} + +/* + * S32OR XRa, XRb, XRc + * Update XRa with the result of logical bitwise 'or' operation + * applied to the content of XRb and XRc. + * + * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * +-----------+---------+-----+-------+-------+-------+-----------+ + * | SPECIAL2 |0 0 0 0 0| opc | XRc | XRb | XRa |MXU__POOL16| + * +-----------+---------+-----+-------+-------+-------+-----------+ + */ +static void gen_mxu_S32OR(DisasContext *ctx) +{ + uint32_t pad, XRc, XRb, XRa; + + pad = extract32(ctx->opcode, 21, 5); + XRc = extract32(ctx->opcode, 14, 4); + XRb = extract32(ctx->opcode, 10, 4); + XRa = extract32(ctx->opcode, 6, 4); + + if (unlikely(pad != 0)) { + /* opcode padding incorrect -> do nothing */ + } else if (unlikely(XRa == 0)) { + /* destination is zero register -> do nothing */ + } else if (unlikely((XRb == 0) && (XRc == 0))) { + /* both operands zero registers -> just set destination to all 0s */ + tcg_gen_movi_i32(mxu_gpr[XRa - 1], 0); + } else if (unlikely(XRb == 0)) { + /* XRb zero register -> just set destination to the content of XRc */ + tcg_gen_mov_i32(mxu_gpr[XRa - 1], mxu_gpr[XRc - 1]); + } else if (unlikely(XRc == 0)) { + /* XRc zero register -> just set destination to the content of XRb */ + tcg_gen_mov_i32(mxu_gpr[XRa - 1], mxu_gpr[XRb - 1]); + } else if (unlikely(XRb == XRc)) { + /* both operands same -> just set destination to one of them */ + tcg_gen_mov_i32(mxu_gpr[XRa - 1], mxu_gpr[XRb - 1]); + } else { + /* the most general case */ + tcg_gen_or_i32(mxu_gpr[XRa - 1], mxu_gpr[XRb - 1], mxu_gpr[XRc - 1]); + } +} + +/* + * S32XOR XRa, XRb, XRc + * Update XRa with the result of logical bitwise 'xor' operation + * applied to the content of XRb and XRc. + * + * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * +-----------+---------+-----+-------+-------+-------+-----------+ + * | SPECIAL2 |0 0 0 0 0| opc | XRc | XRb | XRa |MXU__POOL16| + * +-----------+---------+-----+-------+-------+-------+-----------+ + */ +static void gen_mxu_S32XOR(DisasContext *ctx) +{ + uint32_t pad, XRc, XRb, XRa; + + pad = extract32(ctx->opcode, 21, 5); + XRc = extract32(ctx->opcode, 14, 4); + XRb = extract32(ctx->opcode, 10, 4); + XRa = extract32(ctx->opcode, 6, 4); + + if (unlikely(pad != 0)) { + /* opcode padding incorrect -> do nothing */ + } else if (unlikely(XRa == 0)) { + /* destination is zero register -> do nothing */ + } else if (unlikely((XRb == 0) && (XRc == 0))) { + /* both operands zero registers -> just set destination to all 0s */ + tcg_gen_movi_i32(mxu_gpr[XRa - 1], 0); + } else if (unlikely(XRb == 0)) { + /* XRb zero register -> just set destination to the content of XRc */ + tcg_gen_mov_i32(mxu_gpr[XRa - 1], mxu_gpr[XRc - 1]); + } else if (unlikely(XRc == 0)) { + /* XRc zero register -> just set destination to the content of XRb */ + tcg_gen_mov_i32(mxu_gpr[XRa - 1], mxu_gpr[XRb - 1]); + } else if (unlikely(XRb == XRc)) { + /* both operands same -> just set destination to all 0s */ + tcg_gen_movi_i32(mxu_gpr[XRa - 1], 0); + } else { + /* the most general case */ + tcg_gen_xor_i32(mxu_gpr[XRa - 1], mxu_gpr[XRb - 1], mxu_gpr[XRc - 1]); + } +} + + +/* * Decoding engine for MXU * ======================= */ @@ -25300,18 +25474,18 @@ static void decode_opc_mxu__pool15(CPUMIPSState *env, DisasContext *ctx) * | SPECIAL2 | s3 |0 0|x x x| XRc | XRb | XRa |MXU__POOL16| * +-----------+-----+---+-----+-------+-------+-------+-----------+ * - * S32NOR, S32AND, S32OR, S32XOR: - * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 - * +-----------+---------+-----+-------+-------+-------+-----------+ - * | SPECIAL2 |0 0 0 0 0|x x x| XRc | XRb | XRa |MXU__POOL16| - * +-----------+---------+-----+-------+-------+-------+-----------+ - * * S32LUI: * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 * +-----------+-----+---+-----+-------+---------------+-----------+ * | SPECIAL2 |optn3|0 0|x x x| XRc | s8 |MXU__POOL16| * +-----------+-----+---+-----+-------+---------------+-----------+ * + * S32NOR, S32AND, S32OR, S32XOR: + * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 + * +-----------+---------+-----+-------+-------+-------+-----------+ + * | SPECIAL2 |0 0 0 0 0|x x x| XRc | XRb | XRa |MXU__POOL16| + * +-----------+---------+-----+-------+-------+-------+-----------+ + * */ static void decode_opc_mxu__pool16(CPUMIPSState *env, DisasContext *ctx) { @@ -25333,30 +25507,22 @@ static void decode_opc_mxu__pool16(CPUMIPSState *env, DisasContext *ctx) MIPS_INVAL("OPC_MXU_S32ALNI"); generate_exception_end(ctx, EXCP_RI); break; - case OPC_MXU_S32NOR: - /* TODO: Implement emulation of S32NOR instruction. */ - MIPS_INVAL("OPC_MXU_S32NOR"); + case OPC_MXU_S32LUI: + /* TODO: Implement emulation of S32LUI instruction. */ + MIPS_INVAL("OPC_MXU_S32LUI"); generate_exception_end(ctx, EXCP_RI); break; + case OPC_MXU_S32NOR: + gen_mxu_S32NOR(ctx); + break; case OPC_MXU_S32AND: - /* TODO: Implement emulation of S32AND instruction. */ - MIPS_INVAL("OPC_MXU_S32AND"); - generate_exception_end(ctx, EXCP_RI); + gen_mxu_S32AND(ctx); break; case OPC_MXU_S32OR: - /* TODO: Implement emulation of S32OR instruction. */ - MIPS_INVAL("OPC_MXU_S32OR"); - generate_exception_end(ctx, EXCP_RI); + gen_mxu_S32OR(ctx); break; case OPC_MXU_S32XOR: - /* TODO: Implement emulation of S32XOR instruction. */ - MIPS_INVAL("OPC_MXU_S32XOR"); - generate_exception_end(ctx, EXCP_RI); - break; - case OPC_MXU_S32LUI: - /* TODO: Implement emulation of S32LUI instruction. */ - MIPS_INVAL("OPC_MXU_S32LUI"); - generate_exception_end(ctx, EXCP_RI); + gen_mxu_S32XOR(ctx); break; default: MIPS_INVAL("decode_opc_mxu"); @@ -25854,6 +26020,8 @@ static void decode_opc_mxu(CPUMIPSState *env, DisasContext *ctx) } } +#endif /* !defined(TARGET_MIPS64) */ + static void decode_opc_special2_legacy(CPUMIPSState *env, DisasContext *ctx) { @@ -28098,8 +28266,10 @@ static void decode_opc(CPUMIPSState *env, DisasContext *ctx) case OPC_SPECIAL2: if ((ctx->insn_flags & INSN_R5900) && (ctx->insn_flags & ASE_MMI)) { decode_mmi(env, ctx); +#if !defined(TARGET_MIPS64) } else if (ctx->insn_flags & ASE_MXU) { decode_opc_mxu(env, ctx); +#endif } else { decode_opc_special2_legacy(env, ctx); } @@ -29108,7 +29278,7 @@ void mips_tcg_init(void) fpu_fcr31 = tcg_global_mem_new_i32(cpu_env, offsetof(CPUMIPSState, active_fpu.fcr31), "fcr31"); - +#if !defined(TARGET_MIPS64) for (i = 0; i < NUMBER_OF_MXU_REGISTERS - 1; i++) { mxu_gpr[i] = tcg_global_mem_new(cpu_env, offsetof(CPUMIPSState, @@ -29119,6 +29289,7 @@ void mips_tcg_init(void) mxu_CR = tcg_global_mem_new(cpu_env, offsetof(CPUMIPSState, active_tc.mxu_cr), mxuregnames[NUMBER_OF_MXU_REGISTERS - 1]); +#endif } #include "translate_init.inc.c" |