diff options
| -rw-r--r-- | include/elf.h | 2 | ||||
| -rw-r--r-- | linux-user/elfload.c | 37 | ||||
| -rw-r--r-- | linux-user/mips/cpu_loop.c | 75 | ||||
| -rw-r--r-- | linux-user/mips/target_syscall.h | 2 | ||||
| -rw-r--r-- | linux-user/mips64/target_syscall.h | 2 | ||||
| -rw-r--r-- | linux-user/qemu.h | 4 | ||||
| -rw-r--r-- | linux-user/syscall.c | 62 | ||||
| -rw-r--r-- | target/mips/cpu.h | 10 | ||||
| -rw-r--r-- | target/mips/mips-defs.h | 1 | ||||
| -rw-r--r-- | target/mips/translate.c | 1872 |
10 files changed, 1961 insertions, 106 deletions
diff --git a/include/elf.h b/include/elf.h index 5f45f9b997..c151164b63 100644 --- a/include/elf.h +++ b/include/elf.h @@ -87,6 +87,8 @@ typedef int64_t Elf64_Sxword; #define EF_MIPS_MACH_LS3A 0x00a20000 /* ST Microelectronics Loongson 3A */ #define EF_MIPS_MACH 0x00ff0000 /* EF_MIPS_MACH_xxx selection mask */ +#define MIPS_ABI_FP_UNKNOWN (-1) /* Unknown FP ABI (internal) */ + #define MIPS_ABI_FP_ANY 0x0 /* FP ABI doesn't matter */ #define MIPS_ABI_FP_DOUBLE 0x1 /* -mdouble-float */ #define MIPS_ABI_FP_SINGLE 0x2 /* -msingle-float */ diff --git a/linux-user/elfload.c b/linux-user/elfload.c index 055f6a95ab..5bccd2e243 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -1517,11 +1517,25 @@ static void bswap_sym(struct elf_sym *sym) bswaptls(&sym->st_size); bswap16s(&sym->st_shndx); } + +#ifdef TARGET_MIPS +static void bswap_mips_abiflags(Mips_elf_abiflags_v0 *abiflags) +{ + bswap16s(&abiflags->version); + bswap32s(&abiflags->ases); + bswap32s(&abiflags->isa_ext); + bswap32s(&abiflags->flags1); + bswap32s(&abiflags->flags2); +} +#endif #else static inline void bswap_ehdr(struct elfhdr *ehdr) { } static inline void bswap_phdr(struct elf_phdr *phdr, int phnum) { } static inline void bswap_shdr(struct elf_shdr *shdr, int shnum) { } static inline void bswap_sym(struct elf_sym *sym) { } +#ifdef TARGET_MIPS +static inline void bswap_mips_abiflags(Mips_elf_abiflags_v0 *abiflags) { } +#endif #endif #ifdef USE_ELF_CORE_DUMP @@ -2364,6 +2378,26 @@ static void load_elf_image(const char *image_name, int image_fd, goto exit_errmsg; } *pinterp_name = interp_name; +#ifdef TARGET_MIPS + } else if (eppnt->p_type == PT_MIPS_ABIFLAGS) { + Mips_elf_abiflags_v0 abiflags; + if (eppnt->p_filesz < sizeof(Mips_elf_abiflags_v0)) { + errmsg = "Invalid PT_MIPS_ABIFLAGS entry"; + goto exit_errmsg; + } + if (eppnt->p_offset + eppnt->p_filesz <= BPRM_BUF_SIZE) { + memcpy(&abiflags, bprm_buf + eppnt->p_offset, + sizeof(Mips_elf_abiflags_v0)); + } else { + retval = pread(image_fd, &abiflags, sizeof(Mips_elf_abiflags_v0), + eppnt->p_offset); + if (retval != sizeof(Mips_elf_abiflags_v0)) { + goto exit_perror; + } + } + bswap_mips_abiflags(&abiflags); + info->fp_abi = abiflags.fp_abi; +#endif } } @@ -2675,6 +2709,9 @@ int load_elf_binary(struct linux_binprm *bprm, struct image_info *info) target_mmap(0, qemu_host_page_size, PROT_READ | PROT_EXEC, MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); } +#ifdef TARGET_MIPS + info->interp_fp_abi = interp_info.fp_abi; +#endif } bprm->p = create_elf_tables(bprm->p, bprm->argc, bprm->envc, &elf_ex, diff --git a/linux-user/mips/cpu_loop.c b/linux-user/mips/cpu_loop.c index c9c20cf8b7..97e495747f 100644 --- a/linux-user/mips/cpu_loop.c +++ b/linux-user/mips/cpu_loop.c @@ -740,6 +740,34 @@ void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs) struct image_info *info = ts->info; int i; + struct mode_req { + bool single; + bool soft; + bool fr1; + bool frdefault; + bool fre; + }; + + static const struct mode_req fpu_reqs[] = { + [MIPS_ABI_FP_ANY] = { true, true, true, true, true }, + [MIPS_ABI_FP_DOUBLE] = { false, false, false, true, true }, + [MIPS_ABI_FP_SINGLE] = { true, false, false, false, false }, + [MIPS_ABI_FP_SOFT] = { false, true, false, false, false }, + [MIPS_ABI_FP_OLD_64] = { false, false, false, false, false }, + [MIPS_ABI_FP_XX] = { false, false, true, true, true }, + [MIPS_ABI_FP_64] = { false, false, true, false, false }, + [MIPS_ABI_FP_64A] = { false, false, true, false, true } + }; + + /* + * Mode requirements when .MIPS.abiflags is not present in the ELF. + * Not present means that everything is acceptable except FR1. + */ + static struct mode_req none_req = { true, true, false, true, true }; + + struct mode_req prog_req; + struct mode_req interp_req; + for(i = 0; i < 32; i++) { env->active_tc.gpr[i] = regs->regs[i]; } @@ -747,6 +775,53 @@ void target_cpu_copy_regs(CPUArchState *env, struct target_pt_regs *regs) if (regs->cp0_epc & 1) { env->hflags |= MIPS_HFLAG_M16; } + +#ifdef TARGET_ABI_MIPSO32 +# define MAX_FP_ABI MIPS_ABI_FP_64A +#else +# define MAX_FP_ABI MIPS_ABI_FP_SOFT +#endif + if ((info->fp_abi > MAX_FP_ABI && info->fp_abi != MIPS_ABI_FP_UNKNOWN) + || (info->interp_fp_abi > MAX_FP_ABI && + info->interp_fp_abi != MIPS_ABI_FP_UNKNOWN)) { + fprintf(stderr, "qemu: Unexpected FPU mode\n"); + exit(1); + } + + prog_req = (info->fp_abi == MIPS_ABI_FP_UNKNOWN) ? none_req + : fpu_reqs[info->fp_abi]; + interp_req = (info->interp_fp_abi == MIPS_ABI_FP_UNKNOWN) ? none_req + : fpu_reqs[info->interp_fp_abi]; + + prog_req.single &= interp_req.single; + prog_req.soft &= interp_req.soft; + prog_req.fr1 &= interp_req.fr1; + prog_req.frdefault &= interp_req.frdefault; + prog_req.fre &= interp_req.fre; + + bool cpu_has_mips_r2_r6 = env->insn_flags & ISA_MIPS32R2 || + env->insn_flags & ISA_MIPS64R2 || + env->insn_flags & ISA_MIPS32R6 || + env->insn_flags & ISA_MIPS64R6; + + if (prog_req.fre && !prog_req.frdefault && !prog_req.fr1) { + env->CP0_Config5 |= (1 << CP0C5_FRE); + if (env->active_fpu.fcr0 & (1 << FCR0_FREP)) { + env->hflags |= MIPS_HFLAG_FRE; + } + } else if ((prog_req.fr1 && prog_req.frdefault) || + (prog_req.single && !prog_req.frdefault)) { + if ((env->active_fpu.fcr0 & (1 << FCR0_F64) + && cpu_has_mips_r2_r6) || prog_req.fr1) { + env->CP0_Status |= (1 << CP0St_FR); + env->hflags |= MIPS_HFLAG_F64; + } + } else if (!prog_req.fre && !prog_req.frdefault && + !prog_req.fr1 && !prog_req.single && !prog_req.soft) { + fprintf(stderr, "qemu: Can't find a matching FPU mode\n"); + exit(1); + } + if (env->insn_flags & ISA_NANOMIPS32) { return; } diff --git a/linux-user/mips/target_syscall.h b/linux-user/mips/target_syscall.h index 33177af113..d5509a34a7 100644 --- a/linux-user/mips/target_syscall.h +++ b/linux-user/mips/target_syscall.h @@ -247,5 +247,7 @@ static inline abi_ulong target_shmlba(CPUMIPSState *env) /* MIPS-specific prctl() options */ #define TARGET_PR_SET_FP_MODE 45 #define TARGET_PR_GET_FP_MODE 46 +#define TARGET_PR_FP_MODE_FR (1 << 0) +#define TARGET_PR_FP_MODE_FRE (1 << 1) #endif /* MIPS_TARGET_SYSCALL_H */ diff --git a/linux-user/mips64/target_syscall.h b/linux-user/mips64/target_syscall.h index c1160e69f8..8ccc46822c 100644 --- a/linux-user/mips64/target_syscall.h +++ b/linux-user/mips64/target_syscall.h @@ -244,5 +244,7 @@ static inline abi_ulong target_shmlba(CPUMIPSState *env) /* MIPS-specific prctl() options */ #define TARGET_PR_SET_FP_MODE 45 #define TARGET_PR_GET_FP_MODE 46 +#define TARGET_PR_FP_MODE_FR (1 << 0) +#define TARGET_PR_FP_MODE_FRE (1 << 1) #endif /* MIPS64_TARGET_SYSCALL_H */ diff --git a/linux-user/qemu.h b/linux-user/qemu.h index 1beb6a2cfc..a752c1c97a 100644 --- a/linux-user/qemu.h +++ b/linux-user/qemu.h @@ -61,6 +61,10 @@ struct image_info { abi_ulong interpreter_loadmap_addr; abi_ulong interpreter_pt_dynamic_addr; struct image_info *other_info; +#ifdef TARGET_MIPS + int fp_abi; + int interp_fp_abi; +#endif }; #ifdef TARGET_I386 diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 15b03e17b9..810a58b704 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -9529,11 +9529,65 @@ static abi_long do_syscall1(void *cpu_env, int num, abi_long arg1, #endif #ifdef TARGET_MIPS case TARGET_PR_GET_FP_MODE: - /* TODO: Implement TARGET_PR_SET_FP_MODE handling.*/ - return -TARGET_EINVAL; + { + CPUMIPSState *env = ((CPUMIPSState *)cpu_env); + ret = 0; + if (env->CP0_Status & (1 << CP0St_FR)) { + ret |= TARGET_PR_FP_MODE_FR; + } + if (env->CP0_Config5 & (1 << CP0C5_FRE)) { + ret |= TARGET_PR_FP_MODE_FRE; + } + return ret; + } case TARGET_PR_SET_FP_MODE: - /* TODO: Implement TARGET_PR_GET_FP_MODE handling.*/ - return -TARGET_EINVAL; + { + CPUMIPSState *env = ((CPUMIPSState *)cpu_env); + bool old_fr = env->CP0_Status & (1 << CP0St_FR); + bool new_fr = arg2 & TARGET_PR_FP_MODE_FR; + bool new_fre = arg2 & TARGET_PR_FP_MODE_FRE; + + if (new_fr && !(env->active_fpu.fcr0 & (1 << FCR0_F64))) { + /* FR1 is not supported */ + return -TARGET_EOPNOTSUPP; + } + if (!new_fr && (env->active_fpu.fcr0 & (1 << FCR0_F64)) + && !(env->CP0_Status_rw_bitmask & (1 << CP0St_FR))) { + /* cannot set FR=0 */ + return -TARGET_EOPNOTSUPP; + } + if (new_fre && !(env->active_fpu.fcr0 & (1 << FCR0_FREP))) { + /* Cannot set FRE=1 */ + return -TARGET_EOPNOTSUPP; + } + + int i; + fpr_t *fpr = env->active_fpu.fpr; + for (i = 0; i < 32 ; i += 2) { + if (!old_fr && new_fr) { + fpr[i].w[!FP_ENDIAN_IDX] = fpr[i + 1].w[FP_ENDIAN_IDX]; + } else if (old_fr && !new_fr) { + fpr[i + 1].w[FP_ENDIAN_IDX] = fpr[i].w[!FP_ENDIAN_IDX]; + } + } + + if (new_fr) { + env->CP0_Status |= (1 << CP0St_FR); + env->hflags |= MIPS_HFLAG_F64; + } else { + env->CP0_Status &= ~(1 << CP0St_FR); + } + if (new_fre) { + env->CP0_Config5 |= (1 << CP0C5_FRE); + if (env->active_fpu.fcr0 & (1 << FCR0_FREP)) { + env->hflags |= MIPS_HFLAG_FRE; + } + } else { + env->CP0_Config5 &= ~(1 << CP0C5_FRE); + } + + return 0; + } #endif /* MIPS */ #ifdef TARGET_AARCH64 case TARGET_PR_SVE_SET_VL: diff --git a/target/mips/cpu.h b/target/mips/cpu.h index e48be4b334..03c03fd8c6 100644 --- a/target/mips/cpu.h +++ b/target/mips/cpu.h @@ -170,6 +170,16 @@ struct TCState { MSACSR_FS_MASK) float_status msa_fp_status; + +#define NUMBER_OF_MXU_REGISTERS 16 + target_ulong mxu_gpr[NUMBER_OF_MXU_REGISTERS - 1]; + target_ulong mxu_cr; +#define MXU_CR_LC 31 +#define MXU_CR_RC 30 +#define MXU_CR_BIAS 2 +#define MXU_CR_RD_EN 1 +#define MXU_CR_MXU_EN 0 + }; typedef struct CPUMIPSState CPUMIPSState; diff --git a/target/mips/mips-defs.h b/target/mips/mips-defs.h index 5177618615..dbdb4b2b2d 100644 --- a/target/mips/mips-defs.h +++ b/target/mips/mips-defs.h @@ -69,6 +69,7 @@ * bits 56-63: vendor-specific ASEs */ #define ASE_MMI 0x0100000000000000ULL +#define ASE_MXU 0x0200000000000000ULL /* MIPS CPU defines. */ #define CPU_MIPS1 (ISA_MIPS1) diff --git a/target/mips/translate.c b/target/mips/translate.c index 51a5488da4..60320cbe69 100644 --- a/target/mips/translate.c +++ b/target/mips/translate.c @@ -1410,25 +1410,89 @@ enum { * MXU unit contains 17 registers called X0-X16. X0 is always zero, and X16 is * the control register. * - * The notation used in MXU assembler mnemonics: + * The notation used in MXU assembler mnemonics + * -------------------------------------------- + * + * Registers: * * XRa, XRb, XRc, XRd - MXU registers * Rb, Rc, Rd, Rs, Rt - general purpose MIPS registers - * s12 - a subfield of an instruction code - * strd2 - a subfield of an instruction code - * eptn2 - a subfield of an instruction code - * eptn3 - a subfield of an instruction code - * optn2 - a subfield of an instruction code - * optn3 - a subfield of an instruction code - * sft4 - a subfield of an instruction code + * + * Subfields: + * + * aptn1 - 1-bit accumulate add/subtract pattern + * aptn2 - 2-bit accumulate add/subtract pattern + * eptn2 - 2-bit execute add/subtract pattern + * optn2 - 2-bit operand pattern + * optn3 - 3-bit operand pattern + * sft4 - 4-bit shift amount + * strd2 - 2-bit stride amount + * + * Prefixes: + * + * <Operation parallel level><Operand size> + * S 32 + * D 16 + * Q 8 + * + * Suffixes: + * + * E - Expand results + * F - Fixed point multiplication + * L - Low part result + * R - Doing rounding + * V - Variable instead of immediate + * W - Combine above L and V + * + * Operations: + * + * ADD - Add or subtract + * ADDC - Add with carry-in + * ACC - Accumulate + * ASUM - Sum together then accumulate (add or subtract) + * ASUMC - Sum together then accumulate (add or subtract) with carry-in + * AVG - Average between 2 operands + * ABD - Absolute difference + * ALN - Align data + * AND - Logical bitwise 'and' operation + * CPS - Copy sign + * EXTR - Extract bits + * I2M - Move from GPR register to MXU register + * LDD - Load data from memory to XRF + * LDI - Load data from memory to XRF (and increase the address base) + * LUI - Load unsigned immediate + * MUL - Multiply + * MULU - Unsigned multiply + * MADD - 64-bit operand add 32x32 product + * MSUB - 64-bit operand subtract 32x32 product + * MAC - Multiply and accumulate (add or subtract) + * MAD - Multiply and add or subtract + * MAX - Maximum between 2 operands + * MIN - Minimum between 2 operands + * M2I - Move from MXU register to GPR register + * MOVZ - Move if zero + * MOVN - Move if non-zero + * NOR - Logical bitwise 'nor' operation + * OR - Logical bitwise 'or' operation + * STD - Store data from XRF to memory + * SDI - Store data from XRF to memory (and increase the address base) + * SLT - Set of less than comparison + * SAD - Sum of absolute differences + * SLL - Logical shift left + * SLR - Logical shift right + * SAR - Arithmetic shift right + * SAT - Saturation + * SFL - Shuffle + * SCOP - Calculate x’s scope (-1, means x<0; 0, means x==0; 1, means x>0) + * XOR - Logical bitwise 'exclusive or' operation * * Load/Store instructions Multiplication instructions * ----------------------- --------------------------- * * S32LDD XRa, Rb, s12 S32MADD XRa, XRd, Rs, Rt * S32STD XRa, Rb, s12 S32MADDU XRa, XRd, Rs, Rt - * S32LDDV XRa, Rb, rc, strd2 S32SUB XRa, XRd, Rs, Rt - * S32STDV XRa, Rb, rc, strd2 S32SUBU XRa, XRd, Rs, Rt + * S32LDDV XRa, Rb, rc, strd2 S32MSUB XRa, XRd, Rs, Rt + * S32STDV XRa, Rb, rc, strd2 S32MSUBU XRa, XRd, Rs, Rt * S32LDI XRa, Rb, s12 S32MUL XRa, XRd, Rs, Rt * S32SDI XRa, Rb, s12 S32MULU XRa, XRd, Rs, Rt * S32LDIV XRa, Rb, rc, strd2 D16MUL XRa, XRb, XRc, XRd, optn2 @@ -1486,7 +1550,7 @@ enum { * S32OR XRa, XRb, XRc D32SARW XRa, XRb, XRc, Rb * Q16SLL XRa, XRb, XRc, XRd, sft4 * Q16SLR XRa, XRb, XRc, XRd, sft4 - * Miscelaneous instructions Q16SAR XRa, XRb, XRc, XRd, sft4 + * Miscellaneous instructions Q16SAR XRa, XRb, XRc, XRd, sft4 * ------------------------- Q16SLLV XRa, XRb, Rb * Q16SLRV XRa, XRb, Rb * S32SFL XRa, XRb, XRc, XRd, optn2 Q16SARV XRa, XRb, Rb @@ -1504,7 +1568,8 @@ enum { * * ┌─ 000000 ─ OPC_MXU_S32MADD * ├─ 000001 ─ OPC_MXU_S32MADDU - * ├─ 000010 ─ <not assigned> + * ├─ 000010 ─ <not assigned> (non-MXU OPC_MUL) + * │ * │ 20..18 * ├─ 000011 ─ OPC_MXU__POOL00 ─┬─ 000 ─ OPC_MXU_S32MAX * │ ├─ 001 ─ OPC_MXU_S32MIN @@ -1536,73 +1601,67 @@ enum { * ├─ 001010 ─ OPC_MXU_D16MAC * ├─ 001011 ─ OPC_MXU_D16MACF * ├─ 001100 ─ OPC_MXU_D16MADL - * │ 25..24 - * ├─ 001101 ─ OPC_MXU__POOL04 ─┬─ 00 ─ OPC_MXU_S16MAD - * │ └─ 01 ─ OPC_MXU_S16MAD_1 + * ├─ 001101 ─ OPC_MXU_S16MAD * ├─ 001110 ─ OPC_MXU_Q16ADD - * ├─ 001111 ─ OPC_MXU_D16MACE - * │ 23 - * ├─ 010000 ─ OPC_MXU__POOL05 ─┬─ 0 ─ OPC_MXU_S32LDD - * │ └─ 1 ─ OPC_MXU_S32LDDR + * ├─ 001111 ─ OPC_MXU_D16MACE 23 + * │ ┌─ 0 ─ OPC_MXU_S32LDD + * ├─ 010000 ─ OPC_MXU__POOL04 ─┴─ 1 ─ OPC_MXU_S32LDDR * │ * │ 23 - * ├─ 010001 ─ OPC_MXU__POOL06 ─┬─ 0 ─ OPC_MXU_S32STD + * ├─ 010001 ─ OPC_MXU__POOL05 ─┬─ 0 ─ OPC_MXU_S32STD * │ └─ 1 ─ OPC_MXU_S32STDR * │ * │ 13..10 - * ├─ 010010 ─ OPC_MXU__POOL07 ─┬─ 0000 ─ OPC_MXU_S32LDDV + * ├─ 010010 ─ OPC_MXU__POOL06 ─┬─ 0000 ─ OPC_MXU_S32LDDV * │ └─ 0001 ─ OPC_MXU_S32LDDVR * │ * │ 13..10 - * ├─ 010011 ─ OPC_MXU__POOL08 ─┬─ 0000 ─ OPC_MXU_S32STDV + * ├─ 010011 ─ OPC_MXU__POOL07 ─┬─ 0000 ─ OPC_MXU_S32STDV * │ └─ 0001 ─ OPC_MXU_S32STDVR * │ * │ 23 - * ├─ 010100 ─ OPC_MXU__POOL09 ─┬─ 0 ─ OPC_MXU_S32LDI + * ├─ 010100 ─ OPC_MXU__POOL08 ─┬─ 0 ─ OPC_MXU_S32LDI * │ └─ 1 ─ OPC_MXU_S32LDIR * │ * │ 23 - * ├─ 010101 ─ OPC_MXU__POOL10 ─┬─ 0 ─ OPC_MXU_S32SDI + * ├─ 010101 ─ OPC_MXU__POOL09 ─┬─ 0 ─ OPC_MXU_S32SDI * │ └─ 1 ─ OPC_MXU_S32SDIR * │ * │ 13..10 - * ├─ 010110 ─ OPC_MXU__POOL11 ─┬─ 0000 ─ OPC_MXU_S32LDIV + * ├─ 010110 ─ OPC_MXU__POOL10 ─┬─ 0000 ─ OPC_MXU_S32LDIV * │ └─ 0001 ─ OPC_MXU_S32LDIVR * │ * │ 13..10 - * ├─ 010111 ─ OPC_MXU__POOL12 ─┬─ 0000 ─ OPC_MXU_S32SDIV + * ├─ 010111 ─ OPC_MXU__POOL11 ─┬─ 0000 ─ OPC_MXU_S32SDIV * │ └─ 0001 ─ OPC_MXU_S32SDIVR * ├─ 011000 ─ OPC_MXU_D32ADD * │ 23..22 - * MXU ├─ 011001 ─ OPC_MXU__POOL13 ─┬─ 00 ─ OPC_MXU_D32ACC + * MXU ├─ 011001 ─ OPC_MXU__POOL12 ─┬─ 00 ─ OPC_MXU_D32ACC * opcodes ─┤ ├─ 01 ─ OPC_MXU_D32ACCM * │ └─ 10 ─ OPC_MXU_D32ASUM * ├─ 011010 ─ <not assigned> * │ 23..22 - * ├─ 011011 ─ OPC_MXU__POOL14 ─┬─ 00 ─ OPC_MXU_Q16ACC + * ├─ 011011 ─ OPC_MXU__POOL13 ─┬─ 00 ─ OPC_MXU_Q16ACC * │ ├─ 01 ─ OPC_MXU_Q16ACCM * │ └─ 10 ─ OPC_MXU_Q16ASUM * │ * │ 23..22 - * ├─ 011100 ─ OPC_MXU__POOL15 ─┬─ 00 ─ OPC_MXU_Q8ADDE + * ├─ 011100 ─ OPC_MXU__POOL14 ─┬─ 00 ─ OPC_MXU_Q8ADDE * │ ├─ 01 ─ OPC_MXU_D8SUM * ├─ 011101 ─ OPC_MXU_Q8ACCE └─ 10 ─ OPC_MXU_D8SUMC * ├─ 011110 ─ <not assigned> * ├─ 011111 ─ <not assigned> - * ├─ 100000 ─ <not assigned> - * ├─ 100001 ─ <not assigned> + * ├─ 100000 ─ <not assigned> (overlaps with CLZ) + * ├─ 100001 ─ <not assigned> (overlaps with CLO) * ├─ 100010 ─ OPC_MXU_S8LDD - * ├─ 100011 ─ OPC_MXU_S8STD - * ├─ 100100 ─ OPC_MXU_S8LDI - * ├─ 100101 ─ OPC_MXU_S8SDI - * │ 15..14 - * ├─ 100110 ─ OPC_MXU__POOL16 ─┬─ 00 ─ OPC_MXU_S32MUL - * │ ├─ 00 ─ OPC_MXU_S32MULU + * ├─ 100011 ─ OPC_MXU_S8STD 15..14 + * ├─ 100100 ─ OPC_MXU_S8LDI ┌─ 00 ─ OPC_MXU_S32MUL + * ├─ 100101 ─ OPC_MXU_S8SDI ├─ 00 ─ OPC_MXU_S32MULU * │ ├─ 00 ─ OPC_MXU_S32EXTR - * │ └─ 00 ─ OPC_MXU_S32EXTRV + * ├─ 100110 ─ OPC_MXU__POOL15 ─┴─ 00 ─ OPC_MXU_S32EXTRV * │ * │ 20..18 - * ├─ 100111 ─ OPC_MXU__POOL17 ─┬─ 000 ─ OPC_MXU_D32SARW + * ├─ 100111 ─ OPC_MXU__POOL16 ─┬─ 000 ─ OPC_MXU_D32SARW * │ ├─ 001 ─ OPC_MXU_S32ALN * ├─ 101000 ─ OPC_MXU_LXB ├─ 010 ─ OPC_MXU_S32ALNI * ├─ 101001 ─ <not assigned> ├─ 011 ─ OPC_MXU_S32NOR @@ -1610,33 +1669,24 @@ enum { * ├─ 101011 ─ OPC_MXU_S16STD ├─ 101 ─ OPC_MXU_S32OR * ├─ 101100 ─ OPC_MXU_S16LDI ├─ 110 ─ OPC_MXU_S32XOR * ├─ 101101 ─ OPC_MXU_S16SDI └─ 111 ─ OPC_MXU_S32LUI - * ├─ 101000 ─ <not assigned> - * ├─ 101001 ─ <not assigned> - * ├─ 101010 ─ <not assigned> - * ├─ 101011 ─ <not assigned> - * ├─ 101100 ─ <not assigned> - * ├─ 101101 ─ <not assigned> * ├─ 101110 ─ OPC_MXU_S32M2I * ├─ 101111 ─ OPC_MXU_S32I2M * ├─ 110000 ─ OPC_MXU_D32SLL - * ├─ 110001 ─ OPC_MXU_D32SLR - * ├─ 110010 ─ OPC_MXU_D32SARL - * ├─ 110011 ─ OPC_MXU_D32SAR - * ├─ 110100 ─ OPC_MXU_Q16SLL - * ├─ 110101 ─ OPC_MXU_Q16SLR 20..18 - * ├─ 110110 ─ OPC_MXU__POOL18 ─┬─ 000 ─ OPC_MXU_D32SLLV - * │ ├─ 001 ─ OPC_MXU_D32SLRV - * │ ├─ 010 ─ OPC_MXU_D32SARV - * │ ├─ 011 ─ OPC_MXU_Q16SLLV + * ├─ 110001 ─ OPC_MXU_D32SLR 20..18 + * ├─ 110010 ─ OPC_MXU_D32SARL ┌─ 000 ─ OPC_MXU_D32SLLV + * ├─ 110011 ─ OPC_MXU_D32SAR ├─ 001 ─ OPC_MXU_D32SLRV + * ├─ 110100 ─ OPC_MXU_Q16SLL ├─ 010 ─ OPC_MXU_D32SARV + * ├─ 110101 ─ OPC_MXU_Q16SLR ├─ 011 ─ OPC_MXU_Q16SLLV * │ ├─ 100 ─ OPC_MXU_Q16SLRV - * │ └─ 101 ─ OPC_MXU_Q16SARV + * ├─ 110110 ─ OPC_MXU__POOL17 ─┴─ 101 ─ OPC_MXU_Q16SARV + * │ * ├─ 110111 ─ OPC_MXU_Q16SAR * │ 23..22 - * ├─ 111000 ─ OPC_MXU__POOL19 ─┬─ 00 ─ OPC_MXU_Q8MUL + * ├─ 111000 ─ OPC_MXU__POOL18 ─┬─ 00 ─ OPC_MXU_Q8MUL * │ └─ 01 ─ OPC_MXU_Q8MULSU * │ * │ 20..18 - * ├─ 111001 ─ OPC_MXU__POOL20 ─┬─ 000 ─ OPC_MXU_Q8MOVZ + * ├─ 111001 ─ OPC_MXU__POOL19 ─┬─ 000 ─ OPC_MXU_Q8MOVZ * │ ├─ 001 ─ OPC_MXU_Q8MOVN * │ ├─ 010 ─ OPC_MXU_D16MOVZ * │ ├─ 011 ─ OPC_MXU_D16MOVN @@ -1644,13 +1694,13 @@ enum { * │ └─ 101 ─ OPC_MXU_S32MOV * │ * │ 23..22 - * ├─ 111010 ─ OPC_MXU__POOL21 ─┬─ 00 ─ OPC_MXU_Q8MAC + * ├─ 111010 ─ OPC_MXU__POOL20 ─┬─ 00 ─ OPC_MXU_Q8MAC * │ └─ 10 ─ OPC_MXU_Q8MACSU * ├─ 111011 ─ OPC_MXU_Q16SCOP * ├─ 111100 ─ OPC_MXU_Q8MADL * ├─ 111101 ─ OPC_MXU_S32SFL * ├─ 111110 ─ OPC_MXU_Q8SAD - * └─ 111111 ─ <not assigned> + * └─ 111111 ─ <not assigned> (overlaps with SDBBP) * * * Compiled after: @@ -1662,7 +1712,7 @@ enum { enum { OPC_MXU_S32MADD = 0x00, OPC_MXU_S32MADDU = 0x01, - /* not assigned 0x02 */ + OPC__MXU_MUL = 0x02, OPC_MXU__POOL00 = 0x03, OPC_MXU_S32MSUB = 0x04, OPC_MXU_S32MSUBU = 0x05, @@ -1673,22 +1723,22 @@ enum { OPC_MXU_D16MAC = 0x0A, OPC_MXU_D16MACF = 0x0B, OPC_MXU_D16MADL = 0x0C, - OPC_MXU__POOL04 = 0x0D, + OPC_MXU_S16MAD = 0x0D, OPC_MXU_Q16ADD = 0x0E, OPC_MXU_D16MACE = 0x0F, - OPC_MXU__POOL05 = 0x10, - OPC_MXU__POOL06 = 0x11, - OPC_MXU__POOL07 = 0x12, - OPC_MXU__POOL08 = 0x13, - OPC_MXU__POOL09 = 0x14, - OPC_MXU__POOL10 = 0x15, - OPC_MXU__POOL11 = 0x16, - OPC_MXU__POOL12 = 0x17, + OPC_MXU__POOL04 = 0x10, + OPC_MXU__POOL05 = 0x11, + OPC_MXU__POOL06 = 0x12, + OPC_MXU__POOL07 = 0x13, + OPC_MXU__POOL08 = 0x14, + OPC_MXU__POOL09 = 0x15, + OPC_MXU__POOL10 = 0x16, + OPC_MXU__POOL11 = 0x17, OPC_MXU_D32ADD = 0x18, - OPC_MXU__POOL13 = 0x19, + OPC_MXU__POOL12 = 0x19, /* not assigned 0x1A */ - OPC_MXU__POOL14 = 0x1B, - OPC_MXU__POOL15 = 0x1C, + OPC_MXU__POOL13 = 0x1B, + OPC_MXU__POOL14 = 0x1C, OPC_MXU_Q8ACCE = 0x1D, /* not assigned 0x1E */ /* not assigned 0x1F */ @@ -1698,8 +1748,8 @@ enum { OPC_MXU_S8STD = 0x23, OPC_MXU_S8LDI = 0x24, OPC_MXU_S8SDI = 0x25, - OPC_MXU__POOL16 = 0x26, - OPC_MXU__POOL17 = 0x27, + OPC_MXU__POOL15 = 0x26, + OPC_MXU__POOL16 = 0x27, OPC_MXU_LXB = 0x28, /* not assigned 0x29 */ OPC_MXU_S16LDD = 0x2A, @@ -1714,11 +1764,11 @@ enum { OPC_MXU_D32SAR = 0x33, OPC_MXU_Q16SLL = 0x34, OPC_MXU_Q16SLR = 0x35, - OPC_MXU__POOL18 = 0x36, + OPC_MXU__POOL17 = 0x36, OPC_MXU_Q16SAR = 0x37, - OPC_MXU__POOL19 = 0x38, - OPC_MXU__POOL20 = 0x39, - OPC_MXU__POOL21 = 0x3A, + OPC_MXU__POOL18 = 0x38, + OPC_MXU__POOL19 = 0x39, + OPC_MXU__POOL20 = 0x3A, OPC_MXU_Q16SCOP = 0x3B, OPC_MXU_Q8MADL = 0x3C, OPC_MXU_S32SFL = 0x3D, @@ -1776,20 +1826,12 @@ enum { * MXU pool 04 */ enum { - OPC_MXU_S16MAD = 0x00, - OPC_MXU_S16MAD_1 = 0x01, -}; - -/* - * MXU pool 05 - */ -enum { OPC_MXU_S32LDD = 0x00, OPC_MXU_S32LDDR = 0x01, }; /* - * MXU pool 06 + * MXU pool 05 */ enum { OPC_MXU_S32STD = 0x00, @@ -1797,7 +1839,7 @@ enum { }; /* - * MXU pool 07 + * MXU pool 06 */ enum { OPC_MXU_S32LDDV = 0x00, @@ -1805,7 +1847,7 @@ enum { }; /* - * MXU pool 08 + * MXU pool 07 */ enum { OPC_MXU_S32STDV = 0x00, @@ -1813,7 +1855,7 @@ enum { }; /* - * MXU pool 09 + * MXU pool 08 */ enum { OPC_MXU_S32LDI = 0x00, @@ -1821,7 +1863,7 @@ enum { }; /* - * MXU pool 10 + * MXU pool 09 */ enum { OPC_MXU_S32SDI = 0x00, @@ -1829,7 +1871,7 @@ enum { }; /* - * MXU pool 11 + * MXU pool 10 */ enum { OPC_MXU_S32LDIV = 0x00, @@ -1837,7 +1879,7 @@ enum { }; /* - * MXU pool 12 + * MXU pool 11 */ enum { OPC_MXU_S32SDIV = 0x00, @@ -1845,7 +1887,7 @@ enum { }; /* - * MXU pool 13 + * MXU pool 12 */ enum { OPC_MXU_D32ACC = 0x00, @@ -1854,7 +1896,7 @@ enum { }; /* - * MXU pool 14 + * MXU pool 13 */ enum { OPC_MXU_Q16ACC = 0x00, @@ -1863,7 +1905,7 @@ enum { }; /* - * MXU pool 15 + * MXU pool 14 */ enum { OPC_MXU_Q8ADDE = 0x00, @@ -1872,7 +1914,7 @@ enum { }; /* - * MXU pool 16 + * MXU pool 15 */ enum { OPC_MXU_S32MUL = 0x00, @@ -1882,7 +1924,7 @@ enum { }; /* - * MXU pool 17 + * MXU pool 16 */ enum { OPC_MXU_D32SARW = 0x00, @@ -1896,7 +1938,7 @@ enum { }; /* - * MXU pool 18 + * MXU pool 17 */ enum { OPC_MXU_D32SLLV = 0x00, @@ -1908,7 +1950,7 @@ enum { }; /* - * MXU pool 19 + * MXU pool 18 */ enum { OPC_MXU_Q8MUL = 0x00, @@ -1916,7 +1958,7 @@ enum { }; /* - * MXU pool 20 + * MXU pool 19 */ enum { OPC_MXU_Q8MOVZ = 0x00, @@ -1928,7 +1970,7 @@ enum { }; /* - * MXU pool 21 + * MXU pool 20 */ enum { OPC_MXU_Q8MAC = 0x00, @@ -2379,6 +2421,10 @@ static TCGv_i32 fpu_fcr0, fpu_fcr31; static TCGv_i64 fpu_f64[32]; static TCGv_i64 msa_wr_d[64]; +/* MXU registers */ +static TCGv mxu_gpr[NUMBER_OF_MXU_REGISTERS - 1]; +static TCGv mxu_CR; + #include "exec/gen-icount.h" #define gen_helper_0e0i(name, arg) do { \ @@ -2501,6 +2547,11 @@ static const char * const msaregnames[] = { "w30.d0", "w30.d1", "w31.d0", "w31.d1", }; +static const char * const mxuregnames[] = { + "XR1", "XR2", "XR3", "XR4", "XR5", "XR6", "XR7", "XR8", + "XR9", "XR10", "XR11", "XR12", "XR13", "XR14", "XR15", "MXU_CR", +}; + #define LOG_DISAS(...) \ do { \ if (MIPS_DEBUG_DISAS) { \ @@ -2582,6 +2633,36 @@ static inline void gen_store_srsgpr (int from, int to) } } +/* MXU General purpose registers moves. */ +static inline void gen_load_mxu_gpr(TCGv t, unsigned int reg) +{ + if (reg == 0) { + tcg_gen_movi_tl(t, 0); + } else if (reg <= 15) { + tcg_gen_mov_tl(t, mxu_gpr[reg - 1]); + } +} + +static inline void gen_store_mxu_gpr(TCGv t, unsigned int reg) +{ + if (reg > 0 && reg <= 15) { + tcg_gen_mov_tl(mxu_gpr[reg - 1], t); + } +} + +/* MXU control register moves. */ +static inline void gen_load_mxu_cr(TCGv t) +{ + tcg_gen_mov_tl(t, mxu_CR); +} + +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); +} + + /* Tests */ static inline void gen_save_pc(target_ulong pc) { @@ -21321,6 +21402,7 @@ static int decode_nanomips_32_48_opc(CPUMIPSState *env, DisasContext *ctx) check_eva(ctx); check_cp0_enabled(ctx); gen_llwp(ctx, rs, 0, rt, extract32(ctx->opcode, 3, 5)); + break; default: generate_exception_end(ctx, EXCP_RI); break; @@ -21339,6 +21421,7 @@ static int decode_nanomips_32_48_opc(CPUMIPSState *env, DisasContext *ctx) check_eva(ctx); check_cp0_enabled(ctx); gen_scwp(ctx, rs, 0, rt, extract32(ctx->opcode, 3, 5)); + break; default: generate_exception_end(ctx, EXCP_RI); break; @@ -23989,6 +24072,1578 @@ static void decode_opc_special(CPUMIPSState *env, DisasContext *ctx) } } + +/* MXU accumulate add/subtract 1-bit pattern 'aptn1' */ +#define MXU_APTN1_A 0 +#define MXU_APTN1_S 1 + +/* MXU accumulate add/subtract 2-bit pattern 'aptn2' */ +#define MXU_APTN2_AA 0 +#define MXU_APTN2_AS 1 +#define MXU_APTN2_SA 2 +#define MXU_APTN2_SS 3 + +/* MXU execute add/subtract 2-bit pattern 'eptn2' */ +#define MXU_EPTN2_AA 0 +#define MXU_EPTN2_AS 1 +#define MXU_EPTN2_SA 2 +#define MXU_EPTN2_SS 3 + +/* MXU operand getting pattern 'optn2' */ +#define MXU_OPTN2_WW 0 +#define MXU_OPTN2_LW 1 +#define MXU_OPTN2_HW 2 +#define MXU_OPTN2_XW 3 + +/* MXU operand getting pattern 'optn3' */ +#define MXU_OPTN3_PTN0 0 +#define MXU_OPTN3_PTN1 1 +#define MXU_OPTN3_PTN2 2 +#define MXU_OPTN3_PTN3 3 +#define MXU_OPTN3_PTN4 4 +#define MXU_OPTN3_PTN5 5 +#define MXU_OPTN3_PTN6 6 +#define MXU_OPTN3_PTN7 7 + + +/* + * S32I2M XRa, rb - Register move from GRF to XRF + */ +static void gen_mxu_s32i2m(DisasContext *ctx) +{ + TCGv t0; + uint32_t XRa, Rb; + + t0 = tcg_temp_new(); + + XRa = extract32(ctx->opcode, 6, 5); + Rb = extract32(ctx->opcode, 16, 5); + + gen_load_gpr(t0, Rb); + if (XRa <= 15) { + gen_store_mxu_gpr(t0, XRa); + } else if (XRa == 16) { + gen_store_mxu_cr(t0); + } + + tcg_temp_free(t0); +} + +/* + * S32M2I XRa, rb - Register move from XRF to GRF + */ +static void gen_mxu_s32m2i(DisasContext *ctx) +{ + TCGv t0; + uint32_t XRa, Rb; + + t0 = tcg_temp_new(); + + XRa = extract32(ctx->opcode, 6, 5); + Rb = extract32(ctx->opcode, 16, 5); + + if (XRa <= 15) { + gen_load_mxu_gpr(t0, XRa); + } else if (XRa == 16) { + gen_load_mxu_cr(t0); + } + + gen_store_gpr(t0, Rb); + + tcg_temp_free(t0); +} + +/* + * S8LDD XRa, Rb, s8, optn3 - Load a byte from memory to XRF + */ +static void gen_mxu_s8ldd(DisasContext *ctx) +{ + TCGv t0, t1; + uint32_t XRa, Rb, s8, optn3; + + t0 = tcg_temp_new(); + t1 = tcg_temp_new(); + + XRa = extract32(ctx->opcode, 6, 4); + s8 = extract32(ctx->opcode, 10, 8); + optn3 = extract32(ctx->opcode, 18, 3); + Rb = extract32(ctx->opcode, 21, 5); + + gen_load_gpr(t0, Rb); + tcg_gen_addi_tl(t0, t0, (int8_t)s8); + + switch (optn3) { + /* XRa[7:0] = tmp8 */ + case MXU_OPTN3_PTN0: + tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_UB); + gen_load_mxu_gpr(t0, XRa); + tcg_gen_deposit_tl(t0, t0, t1, 0, 8); + break; + /* XRa[15:8] = tmp8 */ + case MXU_OPTN3_PTN1: + tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_UB); + gen_load_mxu_gpr(t0, XRa); + tcg_gen_deposit_tl(t0, t0, t1, 8, 8); + break; + /* XRa[23:16] = tmp8 */ + case MXU_OPTN3_PTN2: + tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_UB); + gen_load_mxu_gpr(t0, XRa); + tcg_gen_deposit_tl(t0, t0, t1, 16, 8); + break; + /* XRa[31:24] = tmp8 */ + case MXU_OPTN3_PTN3: + tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_UB); + gen_load_mxu_gpr(t0, XRa); + tcg_gen_deposit_tl(t0, t0, t1, 24, 8); + break; + /* XRa = {8'b0, tmp8, 8'b0, tmp8} */ + case MXU_OPTN3_PTN4: + tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_UB); + tcg_gen_deposit_tl(t0, t1, t1, 16, 16); + break; + /* XRa = {tmp8, 8'b0, tmp8, 8'b0} */ + case MXU_OPTN3_PTN5: + tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_UB); + tcg_gen_shli_tl(t1, t1, 8); + tcg_gen_deposit_tl(t0, t1, t1, 16, 16); + break; + /* XRa = {{8{sign of tmp8}}, tmp8, {8{sign of tmp8}}, tmp8} */ + case MXU_OPTN3_PTN6: + tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_SB); + tcg_gen_mov_tl(t0, t1); + tcg_gen_andi_tl(t0, t0, 0xFF00FFFF); + tcg_gen_shli_tl(t1, t1, 16); + tcg_gen_or_tl(t0, t0, t1); + break; + /* XRa = {tmp8, tmp8, tmp8, tmp8} */ + case MXU_OPTN3_PTN7: + tcg_gen_qemu_ld_tl(t1, t0, ctx->mem_idx, MO_UB); + tcg_gen_deposit_tl(t1, t1, t1, 8, 8); + tcg_gen_deposit_tl(t0, t1, t1, 16, 16); + break; + } + + gen_store_mxu_gpr(t0, XRa); + + tcg_temp_free(t0); + tcg_temp_free(t1); +} + +/* + * D16MUL XRa, XRb, XRc, XRd, optn2 - Signed 16 bit pattern multiplication + */ +static void gen_mxu_d16mul(DisasContext *ctx) +{ + TCGv t0, t1, t2, t3; + uint32_t XRa, XRb, XRc, XRd, optn2; + + t0 = tcg_temp_new(); + t1 = tcg_temp_new(); + t2 = tcg_temp_new(); + t3 = tcg_temp_new(); + + XRa = extract32(ctx->opcode, 6, 4); + XRb = extract32(ctx->opcode, 10, 4); + XRc = extract32(ctx->opcode, 14, 4); + XRd = extract32(ctx->opcode, 18, 4); + optn2 = extract32(ctx->opcode, 22, 2); + + gen_load_mxu_gpr(t1, XRb); + tcg_gen_sextract_tl(t0, t1, 0, 16); + tcg_gen_sextract_tl(t1, t1, 16, 16); + gen_load_mxu_gpr(t3, XRc); + tcg_gen_sextract_tl(t2, t3, 0, 16); + tcg_gen_sextract_tl(t3, t3, 16, 16); + + switch (optn2) { + case MXU_OPTN2_WW: /* XRB.H*XRC.H == lop, XRB.L*XRC.L == rop */ + tcg_gen_mul_tl(t3, t1, t3); + tcg_gen_mul_tl(t2, t0, t2); + break; + case MXU_OPTN2_LW: /* XRB.L*XRC.H == lop, XRB.L*XRC.L == rop */ + tcg_gen_mul_tl(t3, t0, t3); + tcg_gen_mul_tl(t2, t0, t2); + break; + case MXU_OPTN2_HW: /* XRB.H*XRC.H == lop, XRB.H*XRC.L == rop */ + tcg_gen_mul_tl(t3, t1, t3); + tcg_gen_mul_tl(t2, t1, t2); + break; + case MXU_OPTN2_XW: /* XRB.L*XRC.H == lop, XRB.H*XRC.L == rop */ + tcg_gen_mul_tl(t3, t0, t3); + tcg_gen_mul_tl(t2, t1, t2); + break; + } + gen_store_mxu_gpr(t3, XRa); + gen_store_mxu_gpr(t2, XRd); + + tcg_temp_free(t0); + tcg_temp_free(t1); + tcg_temp_free(t2); + tcg_temp_free(t3); +} + +/* + * D16MAC XRa, XRb, XRc, XRd, aptn2, optn2 - Signed 16 bit pattern multiply + * and accumulate + */ +static void gen_mxu_d16mac(DisasContext *ctx) +{ + TCGv t0, t1, t2, t3; + uint32_t XRa, XRb, XRc, XRd, optn2, aptn2; + + t0 = tcg_temp_new(); + t1 = tcg_temp_new(); + t2 = tcg_temp_new(); + t3 = tcg_temp_new(); + + XRa = extract32(ctx->opcode, 6, 4); + XRb = extract32(ctx->opcode, 10, 4); + XRc = extract32(ctx->opcode, 14, 4); + XRd = extract32(ctx->opcode, 18, 4); + optn2 = extract32(ctx->opcode, 22, 2); + aptn2 = extract32(ctx->opcode, 24, 2); + + gen_load_mxu_gpr(t1, XRb); + tcg_gen_sextract_tl(t0, t1, 0, 16); + tcg_gen_sextract_tl(t1, t1, 16, 16); + + gen_load_mxu_gpr(t3, XRc); + tcg_gen_sextract_tl(t2, t3, 0, 16); + tcg_gen_sextract_tl(t3, t3, 16, 16); + + switch (optn2) { + case MXU_OPTN2_WW: /* XRB.H*XRC.H == lop, XRB.L*XRC.L == rop */ + tcg_gen_mul_tl(t3, t1, t3); + tcg_gen_mul_tl(t2, t0, t2); + break; + case MXU_OPTN2_LW: /* XRB.L*XRC.H == lop, XRB.L*XRC.L == rop */ + tcg_gen_mul_tl(t3, t0, t3); + tcg_gen_mul_tl(t2, t0, t2); + break; + case MXU_OPTN2_HW: /* XRB.H*XRC.H == lop, XRB.H*XRC.L == rop */ + tcg_gen_mul_tl(t3, t1, t3); + tcg_gen_mul_tl(t2, t1, t2); + break; + case MXU_OPTN2_XW: /* XRB.L*XRC.H == lop, XRB.H*XRC.L == rop */ + tcg_gen_mul_tl(t3, t0, t3); + tcg_gen_mul_tl(t2, t1, t2); + break; + } + gen_load_mxu_gpr(t0, XRa); + gen_load_mxu_gpr(t1, XRd); + + switch (aptn2) { + case MXU_APTN2_AA: + tcg_gen_add_tl(t3, t0, t3); + tcg_gen_add_tl(t2, t1, t2); + break; + case MXU_APTN2_AS: + tcg_gen_add_tl(t3, t0, t3); + tcg_gen_sub_tl(t2, t1, t2); + break; + case MXU_APTN2_SA: + tcg_gen_sub_tl(t3, t0, t3); + tcg_gen_add_tl(t2, t1, t2); + break; + case MXU_APTN2_SS: + tcg_gen_sub_tl(t3, t0, t3); + tcg_gen_sub_tl(t2, t1, t2); + break; + } + gen_store_mxu_gpr(t3, XRa); + gen_store_mxu_gpr(t2, XRd); + + tcg_temp_free(t0); + tcg_temp_free(t1); + tcg_temp_free(t2); + tcg_temp_free(t3); +} + +/* + * Q8MUL XRa, XRb, XRc, XRd - Parallel unsigned 8 bit pattern multiply + * Q8MULSU XRa, XRb, XRc, XRd - Parallel signed 8 bit pattern multiply + */ +static void gen_mxu_q8mul_q8mulsu(DisasContext *ctx) +{ + TCGv t0, t1, t2, t3, t4, t5, t6, t7; + uint32_t XRa, XRb, XRc, XRd, sel; + + t0 = tcg_temp_new(); + t1 = tcg_temp_new(); + t2 = tcg_temp_new(); + t3 = tcg_temp_new(); + t4 = tcg_temp_new(); + t5 = tcg_temp_new(); + t6 = tcg_temp_new(); + t7 = tcg_temp_new(); + + XRa = extract32(ctx->opcode, 6, 4); + XRb = extract32(ctx->opcode, 10, 4); + XRc = extract32(ctx->opcode, 14, 4); + XRd = extract32(ctx->opcode, 18, 4); + sel = extract32(ctx->opcode, 22, 2); + + gen_load_mxu_gpr(t3, XRb); + gen_load_mxu_gpr(t7, XRc); + + if (sel == 0x2) { + /* Q8MULSU */ + tcg_gen_ext8s_tl(t0, t3); + tcg_gen_shri_tl(t3, t3, 8); + tcg_gen_ext8s_tl(t1, t3); + tcg_gen_shri_tl(t3, t3, 8); + tcg_gen_ext8s_tl(t2, t3); + tcg_gen_shri_tl(t3, t3, 8); + tcg_gen_ext8s_tl(t3, t3); + } else { + /* Q8MUL */ + tcg_gen_ext8u_tl(t0, t3); + tcg_gen_shri_tl(t3, t3, 8); + tcg_gen_ext8u_tl(t1, t3); + tcg_gen_shri_tl(t3, t3, 8); + tcg_gen_ext8u_tl(t2, t3); + tcg_gen_shri_tl(t3, t3, 8); + tcg_gen_ext8u_tl(t3, t3); + } + + tcg_gen_ext8u_tl(t4, t7); + tcg_gen_shri_tl(t7, t7, 8); + tcg_gen_ext8u_tl(t5, t7); + tcg_gen_shri_tl(t7, t7, 8); + tcg_gen_ext8u_tl(t6, t7); + tcg_gen_shri_tl(t7, t7, 8); + tcg_gen_ext8u_tl(t7, t7); + + tcg_gen_mul_tl(t0, t0, t4); + tcg_gen_mul_tl(t1, t1, t5); + tcg_gen_mul_tl(t2, t2, t6); + tcg_gen_mul_tl(t3, t3, t7); + + tcg_gen_andi_tl(t0, t0, 0xFFFF); + tcg_gen_andi_tl(t1, t1, 0xFFFF); + tcg_gen_andi_tl(t2, t2, 0xFFFF); + tcg_gen_andi_tl(t3, t3, 0xFFFF); + + tcg_gen_shli_tl(t1, t1, 16); + tcg_gen_shli_tl(t3, t3, 16); + + tcg_gen_or_tl(t0, t0, t1); + tcg_gen_or_tl(t1, t2, t3); + + gen_store_mxu_gpr(t0, XRd); + gen_store_mxu_gpr(t1, XRa); + + tcg_temp_free(t0); + tcg_temp_free(t1); + tcg_temp_free(t2); + tcg_temp_free(t3); + tcg_temp_free(t4); + tcg_temp_free(t5); + tcg_temp_free(t6); + tcg_temp_free(t7); +} + +/* + * S32LDD XRa, Rb, S12 - Load a word from memory to XRF + * S32LDDR XRa, Rb, S12 - Load a word from memory to XRF, reversed byte seq. + */ +static void gen_mxu_s32ldd_s32lddr(DisasContext *ctx) +{ + TCGv t0, t1; + uint32_t XRa, Rb, s12, sel; + + t0 = tcg_temp_new(); + t1 = tcg_temp_new(); + + XRa = extract32(ctx->opcode, 6, 4); + s12 = extract32(ctx->opcode, 10, 10); + sel = extract32(ctx->opcode, 20, 1); + Rb = extract32(ctx->opcode, 21, 5); + + gen_load_gpr(t0, Rb); + + tcg_gen_movi_tl(t1, s12); + tcg_gen_shli_tl(t1, t1, 2); + if (s12 & 0x200) { + tcg_gen_ori_tl(t1, t1, 0xFFFFF000); + } + tcg_gen_add_tl(t1, t0, t1); + tcg_gen_qemu_ld_tl(t1, t1, ctx->mem_idx, MO_SL); + + if (sel == 1) { + /* S32LDDR */ + tcg_gen_bswap32_tl(t1, t1); + } + gen_store_mxu_gpr(t1, XRa); + + tcg_temp_free(t0); + tcg_temp_free(t1); +} + + +/* + * Decoding engine for MXU + * ======================= + */ + +/* + * + * Decode MXU pool00 + * + * 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__POOL00| + * +-----------+---------+-----+-------+-------+-------+-----------+ + * + */ +static void decode_opc_mxu__pool00(CPUMIPSState *env, DisasContext *ctx) +{ + uint32_t opcode = extract32(ctx->opcode, 18, 3); + + switch (opcode) { + case OPC_MXU_S32MAX: + /* TODO: Implement emulation of S32MAX instruction. */ + MIPS_INVAL("OPC_MXU_S32MAX"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S32MIN: + /* TODO: Implement emulation of S32MIN instruction. */ + MIPS_INVAL("OPC_MXU_S32MIN"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_D16MAX: + /* TODO: Implement emulation of D16MAX instruction. */ + MIPS_INVAL("OPC_MXU_D16MAX"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_D16MIN: + /* TODO: Implement emulation of D16MIN instruction. */ + MIPS_INVAL("OPC_MXU_D16MIN"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_Q8MAX: + /* TODO: Implement emulation of Q8MAX instruction. */ + MIPS_INVAL("OPC_MXU_Q8MAX"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_Q8MIN: + /* TODO: Implement emulation of Q8MIN instruction. */ + MIPS_INVAL("OPC_MXU_Q8MIN"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_Q8SLT: + /* TODO: Implement emulation of Q8SLT instruction. */ + MIPS_INVAL("OPC_MXU_Q8SLT"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_Q8SLTU: + /* TODO: Implement emulation of Q8SLTU instruction. */ + MIPS_INVAL("OPC_MXU_Q8SLTU"); + generate_exception_end(ctx, EXCP_RI); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + generate_exception_end(ctx, EXCP_RI); + break; + } +} + +/* + * + * Decode MXU pool01 + * + * S32SLT, D16SLT, D16AVG, D16AVGR, Q8AVG, Q8AVGR: + * 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__POOL01| + * +-----------+---------+-----+-------+-------+-------+-----------+ + * + * Q8ADD: + * 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 |en2|0 0 0|x x x| XRc | XRb | XRa |MXU__POOL01| + * +-----------+---+-----+-----+-------+-------+-------+-----------+ + * + */ +static void decode_opc_mxu__pool01(CPUMIPSState *env, DisasContext *ctx) +{ + uint32_t opcode = extract32(ctx->opcode, 18, 3); + + switch (opcode) { + case OPC_MXU_S32SLT: + /* TODO: Implement emulation of S32SLT instruction. */ + MIPS_INVAL("OPC_MXU_S32SLT"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_D16SLT: + /* TODO: Implement emulation of D16SLT instruction. */ + MIPS_INVAL("OPC_MXU_D16SLT"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_D16AVG: + /* TODO: Implement emulation of D16AVG instruction. */ + MIPS_INVAL("OPC_MXU_D16AVG"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_D16AVGR: + /* TODO: Implement emulation of D16AVGR instruction. */ + MIPS_INVAL("OPC_MXU_D16AVGR"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_Q8AVG: + /* TODO: Implement emulation of Q8AVG instruction. */ + MIPS_INVAL("OPC_MXU_Q8AVG"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_Q8AVGR: + /* TODO: Implement emulation of Q8AVGR instruction. */ + MIPS_INVAL("OPC_MXU_Q8AVGR"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_Q8ADD: + /* TODO: Implement emulation of Q8ADD instruction. */ + MIPS_INVAL("OPC_MXU_Q8ADD"); + generate_exception_end(ctx, EXCP_RI); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + generate_exception_end(ctx, EXCP_RI); + break; + } +} + +/* + * + * Decode MXU pool02 + * + * 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__POOL02| + * +-----------+---------+-----+-------+-------+-------+-----------+ + * + */ +static void decode_opc_mxu__pool02(CPUMIPSState *env, DisasContext *ctx) +{ + uint32_t opcode = extract32(ctx->opcode, 18, 3); + + switch (opcode) { + case OPC_MXU_S32CPS: + /* TODO: Implement emulation of S32CPS instruction. */ + MIPS_INVAL("OPC_MXU_S32CPS"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_D16CPS: + /* TODO: Implement emulation of D16CPS instruction. */ + MIPS_INVAL("OPC_MXU_D16CPS"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_Q8ABD: + /* TODO: Implement emulation of Q8ABD instruction. */ + MIPS_INVAL("OPC_MXU_Q8ABD"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_Q16SAT: + /* TODO: Implement emulation of Q16SAT instruction. */ + MIPS_INVAL("OPC_MXU_Q16SAT"); + generate_exception_end(ctx, EXCP_RI); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + generate_exception_end(ctx, EXCP_RI); + break; + } +} + +/* + * + * Decode MXU pool03 + * + * D16MULF: + * 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 |x x|on2|0 0 0 0| XRc | XRb | XRa |MXU__POOL03| + * +-----------+---+---+-------+-------+-------+-------+-----------+ + * + * D16MULE: + * 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 |x x|on2| Xd | XRc | XRb | XRa |MXU__POOL03| + * +-----------+---+---+-------+-------+-------+-------+-----------+ + * + */ +static void decode_opc_mxu__pool03(CPUMIPSState *env, DisasContext *ctx) +{ + uint32_t opcode = extract32(ctx->opcode, 24, 2); + + switch (opcode) { + case OPC_MXU_D16MULF: + /* TODO: Implement emulation of D16MULF instruction. */ + MIPS_INVAL("OPC_MXU_D16MULF"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_D16MULE: + /* TODO: Implement emulation of D16MULE instruction. */ + MIPS_INVAL("OPC_MXU_D16MULE"); + generate_exception_end(ctx, EXCP_RI); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + generate_exception_end(ctx, EXCP_RI); + break; + } +} + +/* + * + * Decode MXU pool04 + * + * 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 | rb |x| s12 | XRa |MXU__POOL04| + * +-----------+---------+-+-------------------+-------+-----------+ + * + */ +static void decode_opc_mxu__pool04(CPUMIPSState *env, DisasContext *ctx) +{ + uint32_t opcode = extract32(ctx->opcode, 20, 1); + + switch (opcode) { + case OPC_MXU_S32LDD: + case OPC_MXU_S32LDDR: + gen_mxu_s32ldd_s32lddr(ctx); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + generate_exception_end(ctx, EXCP_RI); + break; + } +} + +/* + * + * Decode MXU pool05 + * + * 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 | rb |x| s12 | XRa |MXU__POOL05| + * +-----------+---------+-+-------------------+-------+-----------+ + * + */ +static void decode_opc_mxu__pool05(CPUMIPSState *env, DisasContext *ctx) +{ + uint32_t opcode = extract32(ctx->opcode, 20, 1); + + switch (opcode) { + case OPC_MXU_S32STD: + /* TODO: Implement emulation of S32STD instruction. */ + MIPS_INVAL("OPC_MXU_S32STD"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S32STDR: + /* TODO: Implement emulation of S32STDR instruction. */ + MIPS_INVAL("OPC_MXU_S32STDR"); + generate_exception_end(ctx, EXCP_RI); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + generate_exception_end(ctx, EXCP_RI); + break; + } +} + +/* + * + * Decode MXU pool06 + * + * 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 | rb | rc |st2|x x x x| XRa |MXU__POOL06| + * +-----------+---------+---------+---+-------+-------+-----------+ + * + */ +static void decode_opc_mxu__pool06(CPUMIPSState *env, DisasContext *ctx) +{ + uint32_t opcode = extract32(ctx->opcode, 10, 4); + + switch (opcode) { + case OPC_MXU_S32LDDV: + /* TODO: Implement emulation of S32LDDV instruction. */ + MIPS_INVAL("OPC_MXU_S32LDDV"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S32LDDVR: + /* TODO: Implement emulation of S32LDDVR instruction. */ + MIPS_INVAL("OPC_MXU_S32LDDVR"); + generate_exception_end(ctx, EXCP_RI); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + generate_exception_end(ctx, EXCP_RI); + break; + } +} + +/* + * + * Decode MXU pool07 + * + * 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 | rb | rc |st2|x x x x| XRa |MXU__POOL07| + * +-----------+---------+---------+---+-------+-------+-----------+ + * + */ +static void decode_opc_mxu__pool07(CPUMIPSState *env, DisasContext *ctx) +{ + uint32_t opcode = extract32(ctx->opcode, 10, 4); + + switch (opcode) { + case OPC_MXU_S32STDV: + /* TODO: Implement emulation of S32TDV instruction. */ + MIPS_INVAL("OPC_MXU_S32TDV"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S32STDVR: + /* TODO: Implement emulation of S32TDVR instruction. */ + MIPS_INVAL("OPC_MXU_S32TDVR"); + generate_exception_end(ctx, EXCP_RI); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + generate_exception_end(ctx, EXCP_RI); + break; + } +} + +/* + * + * Decode MXU pool08 + * + * 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 | rb |x| s12 | XRa |MXU__POOL08| + * +-----------+---------+-+-------------------+-------+-----------+ + * +*/ +static void decode_opc_mxu__pool08(CPUMIPSState *env, DisasContext *ctx) +{ + uint32_t opcode = extract32(ctx->opcode, 20, 1); + + switch (opcode) { + case OPC_MXU_S32LDI: + /* TODO: Implement emulation of S32LDI instruction. */ + MIPS_INVAL("OPC_MXU_S32LDI"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S32LDIR: + /* TODO: Implement emulation of S32LDIR instruction. */ + MIPS_INVAL("OPC_MXU_S32LDIR"); + generate_exception_end(ctx, EXCP_RI); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + generate_exception_end(ctx, EXCP_RI); + break; + } +} + +/* + * + * Decode MXU pool09 + * + * 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 | rb |x| s12 | XRa |MXU__POOL09| + * +-----------+---------+-+-------------------+-------+-----------+ + * + */ +static void decode_opc_mxu__pool09(CPUMIPSState *env, DisasContext *ctx) +{ + uint32_t opcode = extract32(ctx->opcode, 5, 0); + + switch (opcode) { + case OPC_MXU_S32SDI: + /* TODO: Implement emulation of S32SDI instruction. */ + MIPS_INVAL("OPC_MXU_S32SDI"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S32SDIR: + /* TODO: Implement emulation of S32SDIR instruction. */ + MIPS_INVAL("OPC_MXU_S32SDIR"); + generate_exception_end(ctx, EXCP_RI); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + generate_exception_end(ctx, EXCP_RI); + break; + } +} + +/* + * + * Decode MXU pool10 + * + * 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 | rb | rc |st2|x x x x| XRa |MXU__POOL10| + * +-----------+---------+---------+---+-------+-------+-----------+ + * + */ +static void decode_opc_mxu__pool10(CPUMIPSState *env, DisasContext *ctx) +{ + uint32_t opcode = extract32(ctx->opcode, 5, 0); + + switch (opcode) { + case OPC_MXU_S32LDIV: + /* TODO: Implement emulation of S32LDIV instruction. */ + MIPS_INVAL("OPC_MXU_S32LDIV"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S32LDIVR: + /* TODO: Implement emulation of S32LDIVR instruction. */ + MIPS_INVAL("OPC_MXU_S32LDIVR"); + generate_exception_end(ctx, EXCP_RI); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + generate_exception_end(ctx, EXCP_RI); + break; + } +} + +/* + * + * Decode MXU pool11 + * + * 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 | rb | rc |st2|x x x x| XRa |MXU__POOL11| + * +-----------+---------+---------+---+-------+-------+-----------+ + * + */ +static void decode_opc_mxu__pool11(CPUMIPSState *env, DisasContext *ctx) +{ + uint32_t opcode = extract32(ctx->opcode, 10, 4); + + switch (opcode) { + case OPC_MXU_S32SDIV: + /* TODO: Implement emulation of S32SDIV instruction. */ + MIPS_INVAL("OPC_MXU_S32SDIV"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S32SDIVR: + /* TODO: Implement emulation of S32SDIVR instruction. */ + MIPS_INVAL("OPC_MXU_S32SDIVR"); + generate_exception_end(ctx, EXCP_RI); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + generate_exception_end(ctx, EXCP_RI); + break; + } +} + +/* + * + * Decode MXU pool12 + * + * 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 |an2|x x| Xd | XRc | XRb | XRa |MXU__POOL12| + * +-----------+---+---+-------+-------+-------+-------+-----------+ + * + */ +static void decode_opc_mxu__pool12(CPUMIPSState *env, DisasContext *ctx) +{ + uint32_t opcode = extract32(ctx->opcode, 22, 2); + + switch (opcode) { + case OPC_MXU_D32ACC: + /* TODO: Implement emulation of D32ACC instruction. */ + MIPS_INVAL("OPC_MXU_D32ACC"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_D32ACCM: + /* TODO: Implement emulation of D32ACCM instruction. */ + MIPS_INVAL("OPC_MXU_D32ACCM"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_D32ASUM: + /* TODO: Implement emulation of D32ASUM instruction. */ + MIPS_INVAL("OPC_MXU_D32ASUM"); + generate_exception_end(ctx, EXCP_RI); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + generate_exception_end(ctx, EXCP_RI); + break; + } +} + +/* + * + * Decode MXU pool13 + * + * 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 |en2|x x|0 0 0 0| XRc | XRb | XRa |MXU__POOL13| + * +-----------+---+---+-------+-------+-------+-------+-----------+ + * + */ +static void decode_opc_mxu__pool13(CPUMIPSState *env, DisasContext *ctx) +{ + uint32_t opcode = extract32(ctx->opcode, 22, 2); + + switch (opcode) { + case OPC_MXU_Q16ACC: + /* TODO: Implement emulation of Q16ACC instruction. */ + MIPS_INVAL("OPC_MXU_Q16ACC"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_Q16ACCM: + /* TODO: Implement emulation of Q16ACCM instruction. */ + MIPS_INVAL("OPC_MXU_Q16ACCM"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_Q16ASUM: + /* TODO: Implement emulation of Q16ASUM instruction. */ + MIPS_INVAL("OPC_MXU_Q16ASUM"); + generate_exception_end(ctx, EXCP_RI); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + generate_exception_end(ctx, EXCP_RI); + break; + } +} + +/* + * + * Decode MXU pool14 + * + * Q8ADDE, Q8ACCE: + * 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|x x| XRd | XRc | XRb | XRa |MXU__POOL14| + * +-----------+---+---+-------+-------+-------+-------+-----------+ + * + * D8SUM, D8SUMC: + * 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 |en2|x x|0 0 0 0| XRc | XRb | XRa |MXU__POOL14| + * +-----------+---+---+-------+-------+-------+-------+-----------+ + * + */ +static void decode_opc_mxu__pool14(CPUMIPSState *env, DisasContext *ctx) +{ + uint32_t opcode = extract32(ctx->opcode, 22, 2); + + switch (opcode) { + case OPC_MXU_Q8ADDE: + /* TODO: Implement emulation of Q8ADDE instruction. */ + MIPS_INVAL("OPC_MXU_Q8ADDE"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_D8SUM: + /* TODO: Implement emulation of D8SUM instruction. */ + MIPS_INVAL("OPC_MXU_D8SUM"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_D8SUMC: + /* TODO: Implement emulation of D8SUMC instruction. */ + MIPS_INVAL("OPC_MXU_D8SUMC"); + generate_exception_end(ctx, EXCP_RI); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + generate_exception_end(ctx, EXCP_RI); + break; + } +} + +/* + * + * Decode MXU pool15 + * + * S32MUL, S32MULU, S32EXTRV: + * 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 | rs | rt |x x| XRd | XRa |MXU__POOL15| + * +-----------+---------+---------+---+-------+-------+-----------+ + * + * S32EXTR: + * 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 | rb | sft5 |x x| XRd | XRa |MXU__POOL15| + * +-----------+---------+---------+---+-------+-------+-----------+ + * + */ +static void decode_opc_mxu__pool15(CPUMIPSState *env, DisasContext *ctx) +{ + uint32_t opcode = extract32(ctx->opcode, 14, 2); + + switch (opcode) { + case OPC_MXU_S32MUL: + /* TODO: Implement emulation of S32MUL instruction. */ + MIPS_INVAL("OPC_MXU_S32MUL"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S32MULU: + /* TODO: Implement emulation of S32MULU instruction. */ + MIPS_INVAL("OPC_MXU_S32MULU"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S32EXTR: + /* TODO: Implement emulation of S32EXTR instruction. */ + MIPS_INVAL("OPC_MXU_S32EXTR"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S32EXTRV: + /* TODO: Implement emulation of S32EXTRV instruction. */ + MIPS_INVAL("OPC_MXU_S32EXTRV"); + generate_exception_end(ctx, EXCP_RI); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + generate_exception_end(ctx, EXCP_RI); + break; + } +} + +/* + * + * Decode MXU pool16 + * + * D32SARW: + * 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 | rb |x x x| XRc | XRb | XRa |MXU__POOL16| + * +-----------+---------+-----+-------+-------+-------+-----------+ + * + * S32ALN: + * 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 | rs |x x x| XRc | XRb | XRa |MXU__POOL16| + * +-----------+---------+-----+-------+-------+-------+-----------+ + * + * S32ALNI: + * 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 | 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| + * +-----------+-----+---+-----+-------+---------------+-----------+ + * + */ +static void decode_opc_mxu__pool16(CPUMIPSState *env, DisasContext *ctx) +{ + uint32_t opcode = extract32(ctx->opcode, 18, 3); + + switch (opcode) { + case OPC_MXU_D32SARW: + /* TODO: Implement emulation of D32SARW instruction. */ + MIPS_INVAL("OPC_MXU_D32SARW"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S32ALN: + /* TODO: Implement emulation of S32ALN instruction. */ + MIPS_INVAL("OPC_MXU_S32ALN"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S32ALNI: + /* TODO: Implement emulation of S32ALNI instruction. */ + 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"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S32AND: + /* TODO: Implement emulation of S32AND instruction. */ + MIPS_INVAL("OPC_MXU_S32AND"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S32OR: + /* TODO: Implement emulation of S32OR instruction. */ + MIPS_INVAL("OPC_MXU_S32OR"); + generate_exception_end(ctx, EXCP_RI); + 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); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + generate_exception_end(ctx, EXCP_RI); + break; + } +} + +/* + * + * Decode MXU pool17 + * + * 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 | rb |x x x| XRd | XRa |0 0 0 0|MXU__POOL17| + * +-----------+---------+-----+-------+-------+-------+-----------+ + * + */ +static void decode_opc_mxu__pool17(CPUMIPSState *env, DisasContext *ctx) +{ + uint32_t opcode = extract32(ctx->opcode, 18, 3); + + switch (opcode) { + case OPC_MXU_D32SLLV: + /* TODO: Implement emulation of D32SLLV instruction. */ + MIPS_INVAL("OPC_MXU_D32SLLV"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_D32SLRV: + /* TODO: Implement emulation of D32SLRV instruction. */ + MIPS_INVAL("OPC_MXU_D32SLRV"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_D32SARV: + /* TODO: Implement emulation of D32SARV instruction. */ + MIPS_INVAL("OPC_MXU_D32SARV"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_Q16SLLV: + /* TODO: Implement emulation of Q16SLLV instruction. */ + MIPS_INVAL("OPC_MXU_Q16SLLV"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_Q16SLRV: + /* TODO: Implement emulation of Q16SLRV instruction. */ + MIPS_INVAL("OPC_MXU_Q16SLRV"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_Q16SARV: + /* TODO: Implement emulation of Q16SARV instruction. */ + MIPS_INVAL("OPC_MXU_Q16SARV"); + generate_exception_end(ctx, EXCP_RI); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + generate_exception_end(ctx, EXCP_RI); + break; + } +} + +/* + * + * Decode MXU pool18 + * + * 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|x x| XRd | XRc | XRb | XRa |MXU__POOL18| + * +-----------+---+---+-------+-------+-------+-------+-----------+ + * + */ +static void decode_opc_mxu__pool18(CPUMIPSState *env, DisasContext *ctx) +{ + uint32_t opcode = extract32(ctx->opcode, 22, 2); + + switch (opcode) { + case OPC_MXU_Q8MUL: + case OPC_MXU_Q8MULSU: + gen_mxu_q8mul_q8mulsu(ctx); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + generate_exception_end(ctx, EXCP_RI); + break; + } +} + +/* + * + * Decode MXU pool19 + * + * 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__POOL19| + * +-----------+---------+-----+-------+-------+-------+-----------+ + * + */ +static void decode_opc_mxu__pool19(CPUMIPSState *env, DisasContext *ctx) +{ + uint32_t opcode = extract32(ctx->opcode, 18, 3); + + switch (opcode) { + case OPC_MXU_Q8MOVZ: + /* TODO: Implement emulation of Q8MOVZ instruction. */ + MIPS_INVAL("OPC_MXU_Q8MOVZ"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_Q8MOVN: + /* TODO: Implement emulation of Q8MOVN instruction. */ + MIPS_INVAL("OPC_MXU_Q8MOVN"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_D16MOVZ: + /* TODO: Implement emulation of D16MOVZ instruction. */ + MIPS_INVAL("OPC_MXU_D16MOVZ"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_D16MOVN: + /* TODO: Implement emulation of D16MOVN instruction. */ + MIPS_INVAL("OPC_MXU_D16MOVN"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S32MOVZ: + /* TODO: Implement emulation of S32MOVZ instruction. */ + MIPS_INVAL("OPC_MXU_S32MOVZ"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S32MOVN: + /* TODO: Implement emulation of S32MOVN instruction. */ + MIPS_INVAL("OPC_MXU_S32MOVN"); + generate_exception_end(ctx, EXCP_RI); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + generate_exception_end(ctx, EXCP_RI); + break; + } +} + +/* + * + * Decode MXU pool20 + * + * 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 |an2|x x| XRd | XRc | XRb | XRa |MXU__POOL20| + * +-----------+---+---+-------+-------+-------+-------+-----------+ + * + */ +static void decode_opc_mxu__pool20(CPUMIPSState *env, DisasContext *ctx) +{ + uint32_t opcode = extract32(ctx->opcode, 22, 2); + + switch (opcode) { + case OPC_MXU_Q8MAC: + /* TODO: Implement emulation of Q8MAC instruction. */ + MIPS_INVAL("OPC_MXU_Q8MAC"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_Q8MACSU: + /* TODO: Implement emulation of Q8MACSU instruction. */ + MIPS_INVAL("OPC_MXU_Q8MACSU"); + generate_exception_end(ctx, EXCP_RI); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + generate_exception_end(ctx, EXCP_RI); + break; + } +} + + +/* + * Main MXU decoding function + * + * 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 | |x x x x x x| + * +-----------+---------------------------------------+-----------+ + * + */ +static void decode_opc_mxu(CPUMIPSState *env, DisasContext *ctx) +{ + /* + * TODO: Investigate necessity of including handling of + * CLZ, CLO, SDBB in this function, as they belong to + * SPECIAL2 opcode space for regular pre-R6 MIPS ISAs. + */ + uint32_t opcode = extract32(ctx->opcode, 0, 6); + + if (opcode == OPC__MXU_MUL) { + uint32_t rs, rt, rd, op1; + + rs = extract32(ctx->opcode, 21, 5); + rt = extract32(ctx->opcode, 16, 5); + rd = extract32(ctx->opcode, 11, 5); + op1 = MASK_SPECIAL2(ctx->opcode); + + gen_arith(ctx, op1, rd, rs, rt); + + return; + } + + if (opcode == OPC_MXU_S32M2I) { + gen_mxu_s32m2i(ctx); + return; + } + + if (opcode == OPC_MXU_S32I2M) { + gen_mxu_s32i2m(ctx); + return; + } + + { + TCGv t_mxu_cr = tcg_temp_new(); + TCGLabel *l_exit = gen_new_label(); + + gen_load_mxu_cr(t_mxu_cr); + tcg_gen_andi_tl(t_mxu_cr, t_mxu_cr, MXU_CR_MXU_EN); + tcg_gen_brcondi_tl(TCG_COND_NE, t_mxu_cr, MXU_CR_MXU_EN, l_exit); + + switch (opcode) { + case OPC_MXU_S32MADD: + /* TODO: Implement emulation of S32MADD instruction. */ + MIPS_INVAL("OPC_MXU_S32MADD"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S32MADDU: + /* TODO: Implement emulation of S32MADDU instruction. */ + MIPS_INVAL("OPC_MXU_S32MADDU"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU__POOL00: + decode_opc_mxu__pool00(env, ctx); + break; + case OPC_MXU_S32MSUB: + /* TODO: Implement emulation of S32MSUB instruction. */ + MIPS_INVAL("OPC_MXU_S32MSUB"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S32MSUBU: + /* TODO: Implement emulation of S32MSUBU instruction. */ + MIPS_INVAL("OPC_MXU_S32MSUBU"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU__POOL01: + decode_opc_mxu__pool01(env, ctx); + break; + case OPC_MXU__POOL02: + decode_opc_mxu__pool02(env, ctx); + break; + case OPC_MXU_D16MUL: + gen_mxu_d16mul(ctx); + break; + case OPC_MXU__POOL03: + decode_opc_mxu__pool03(env, ctx); + break; + case OPC_MXU_D16MAC: + gen_mxu_d16mac(ctx); + break; + case OPC_MXU_D16MACF: + /* TODO: Implement emulation of D16MACF instruction. */ + MIPS_INVAL("OPC_MXU_D16MACF"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_D16MADL: + /* TODO: Implement emulation of D16MADL instruction. */ + MIPS_INVAL("OPC_MXU_D16MADL"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S16MAD: + /* TODO: Implement emulation of S16MAD instruction. */ + MIPS_INVAL("OPC_MXU_S16MAD"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_Q16ADD: + /* TODO: Implement emulation of Q16ADD instruction. */ + MIPS_INVAL("OPC_MXU_Q16ADD"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_D16MACE: + /* TODO: Implement emulation of D16MACE instruction. */ + MIPS_INVAL("OPC_MXU_D16MACE"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU__POOL04: + decode_opc_mxu__pool04(env, ctx); + break; + case OPC_MXU__POOL05: + decode_opc_mxu__pool05(env, ctx); + break; + case OPC_MXU__POOL06: + decode_opc_mxu__pool06(env, ctx); + break; + case OPC_MXU__POOL07: + decode_opc_mxu__pool07(env, ctx); + break; + case OPC_MXU__POOL08: + decode_opc_mxu__pool08(env, ctx); + break; + case OPC_MXU__POOL09: + decode_opc_mxu__pool09(env, ctx); + break; + case OPC_MXU__POOL10: + decode_opc_mxu__pool10(env, ctx); + break; + case OPC_MXU__POOL11: + decode_opc_mxu__pool11(env, ctx); + break; + case OPC_MXU_D32ADD: + /* TODO: Implement emulation of D32ADD instruction. */ + MIPS_INVAL("OPC_MXU_D32ADD"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU__POOL12: + decode_opc_mxu__pool12(env, ctx); + break; + case OPC_MXU__POOL13: + decode_opc_mxu__pool13(env, ctx); + break; + case OPC_MXU__POOL14: + decode_opc_mxu__pool14(env, ctx); + break; + case OPC_MXU_Q8ACCE: + /* TODO: Implement emulation of Q8ACCE instruction. */ + MIPS_INVAL("OPC_MXU_Q8ACCE"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S8LDD: + gen_mxu_s8ldd(ctx); + break; + case OPC_MXU_S8STD: + /* TODO: Implement emulation of S8STD instruction. */ + MIPS_INVAL("OPC_MXU_S8STD"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S8LDI: + /* TODO: Implement emulation of S8LDI instruction. */ + MIPS_INVAL("OPC_MXU_S8LDI"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S8SDI: + /* TODO: Implement emulation of S8SDI instruction. */ + MIPS_INVAL("OPC_MXU_S8SDI"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU__POOL15: + decode_opc_mxu__pool15(env, ctx); + break; + case OPC_MXU__POOL16: + decode_opc_mxu__pool16(env, ctx); + break; + case OPC_MXU_LXB: + /* TODO: Implement emulation of LXB instruction. */ + MIPS_INVAL("OPC_MXU_LXB"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S16LDD: + /* TODO: Implement emulation of S16LDD instruction. */ + MIPS_INVAL("OPC_MXU_S16LDD"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S16STD: + /* TODO: Implement emulation of S16STD instruction. */ + MIPS_INVAL("OPC_MXU_S16STD"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S16LDI: + /* TODO: Implement emulation of S16LDI instruction. */ + MIPS_INVAL("OPC_MXU_S16LDI"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S16SDI: + /* TODO: Implement emulation of S16SDI instruction. */ + MIPS_INVAL("OPC_MXU_S16SDI"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_D32SLL: + /* TODO: Implement emulation of D32SLL instruction. */ + MIPS_INVAL("OPC_MXU_D32SLL"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_D32SLR: + /* TODO: Implement emulation of D32SLR instruction. */ + MIPS_INVAL("OPC_MXU_D32SLR"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_D32SARL: + /* TODO: Implement emulation of D32SARL instruction. */ + MIPS_INVAL("OPC_MXU_D32SARL"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_D32SAR: + /* TODO: Implement emulation of D32SAR instruction. */ + MIPS_INVAL("OPC_MXU_D32SAR"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_Q16SLL: + /* TODO: Implement emulation of Q16SLL instruction. */ + MIPS_INVAL("OPC_MXU_Q16SLL"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_Q16SLR: + /* TODO: Implement emulation of Q16SLR instruction. */ + MIPS_INVAL("OPC_MXU_Q16SLR"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU__POOL17: + decode_opc_mxu__pool17(env, ctx); + break; + case OPC_MXU_Q16SAR: + /* TODO: Implement emulation of Q16SAR instruction. */ + MIPS_INVAL("OPC_MXU_Q16SAR"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU__POOL18: + decode_opc_mxu__pool18(env, ctx); + break; + case OPC_MXU__POOL19: + decode_opc_mxu__pool19(env, ctx); + break; + case OPC_MXU__POOL20: + decode_opc_mxu__pool20(env, ctx); + break; + case OPC_MXU_Q16SCOP: + /* TODO: Implement emulation of Q16SCOP instruction. */ + MIPS_INVAL("OPC_MXU_Q16SCOP"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_Q8MADL: + /* TODO: Implement emulation of Q8MADL instruction. */ + MIPS_INVAL("OPC_MXU_Q8MADL"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_S32SFL: + /* TODO: Implement emulation of S32SFL instruction. */ + MIPS_INVAL("OPC_MXU_S32SFL"); + generate_exception_end(ctx, EXCP_RI); + break; + case OPC_MXU_Q8SAD: + /* TODO: Implement emulation of Q8SAD instruction. */ + MIPS_INVAL("OPC_MXU_Q8SAD"); + generate_exception_end(ctx, EXCP_RI); + break; + default: + MIPS_INVAL("decode_opc_mxu"); + generate_exception_end(ctx, EXCP_RI); + } + + gen_set_label(l_exit); + tcg_temp_free(t_mxu_cr); + } +} + + static void decode_opc_special2_legacy(CPUMIPSState *env, DisasContext *ctx) { int rs, rt, rd; @@ -26232,6 +27887,8 @@ static void decode_opc(CPUMIPSState *env, DisasContext *ctx) case OPC_SPECIAL2: if ((ctx->insn_flags & INSN_R5900) && (ctx->insn_flags & ASE_MMI)) { decode_tx79_mmi(env, ctx); + } else if (ctx->insn_flags & ASE_MXU) { + decode_opc_mxu(env, ctx); } else { decode_opc_special2_legacy(env, ctx); } @@ -27229,6 +28886,17 @@ void mips_tcg_init(void) fpu_fcr31 = tcg_global_mem_new_i32(cpu_env, offsetof(CPUMIPSState, active_fpu.fcr31), "fcr31"); + + for (i = 0; i < NUMBER_OF_MXU_REGISTERS - 1; i++) { + mxu_gpr[i] = tcg_global_mem_new(cpu_env, + offsetof(CPUMIPSState, + active_tc.mxu_gpr[i]), + mxuregnames[i]); + } + + mxu_CR = tcg_global_mem_new(cpu_env, + offsetof(CPUMIPSState, active_tc.mxu_cr), + mxuregnames[NUMBER_OF_MXU_REGISTERS - 1]); } #include "translate_init.inc.c" |