/*************************************************************************** mips3com.c Common MIPS III/IV definitions and functions ***************************************************************************/ #include "emu.h" #include "mips3com.h" /*************************************************************************** DEBUGGING ***************************************************************************/ #define PRINTF_TLB (0) #define USE_ABI_REG_NAMES (1) /*************************************************************************** FUNCTION PROTOTYPES ***************************************************************************/ static TIMER_CALLBACK( compare_int_callback ); static UINT32 compute_config_register(const mips3_state *mips); static UINT32 compute_prid_register(const mips3_state *mips); static void tlb_map_entry(mips3_state *mips, int tlbindex); static void tlb_write_common(mips3_state *mips, int tlbindex); static void tlb_entry_log_half(mips3_tlb_entry *entry, int tlbindex, int which); /*************************************************************************** INLINE FUNCTIONS ***************************************************************************/ /*------------------------------------------------- tlb_entry_matches_asid - TRUE if the given TLB entry matches the provided ASID -------------------------------------------------*/ INLINE int tlb_entry_matches_asid(const mips3_tlb_entry *entry, UINT8 asid) { return (entry->entry_hi & 0xff) == asid; } /*------------------------------------------------- tlb_entry_is_global - TRUE if the given TLB entry is global -------------------------------------------------*/ INLINE int tlb_entry_is_global(const mips3_tlb_entry *entry) { return (entry->entry_lo[0] & entry->entry_lo[1] & TLB_GLOBAL); } /*************************************************************************** INITIALIZATION AND SHUTDOWN ***************************************************************************/ /*------------------------------------------------- mips3com_init - initialize the mips3_state structure based on the configured type -------------------------------------------------*/ void mips3com_init(mips3_state *mips, mips3_flavor flavor, int bigendian, legacy_cpu_device *device, device_irq_callback irqcallback) { const mips3_config *config = (const mips3_config *)device->static_config(); int tlbindex; /* initialize based on the config */ memset(mips, 0, sizeof(*mips)); mips->flavor = flavor; mips->bigendian = bigendian; mips->cpu_clock = device->clock(); mips->irq_callback = irqcallback; mips->device = device; mips->program = device->space(AS_PROGRAM); mips->direct = &mips->program->direct(); mips->icache_size = config->icache; mips->dcache_size = config->dcache; mips->system_clock = config->system_clock; /* configure flavor-specific parameters */ mips->pfnmask = 0x00ffffff; mips->tlbentries = MIPS3_MAX_TLB_ENTRIES; /* VR4300 and VR5432 have 4 fewer PFN bits, and only 32 TLB entries */ if (flavor == MIPS3_TYPE_VR4300) { mips->pfnmask = 0x000fffff; mips->tlbentries = 32; } /* set up the endianness */ mips->program->accessors(mips->memory); /* allocate the virtual TLB */ mips->vtlb = vtlb_alloc(device, AS_PROGRAM, 2 * mips->tlbentries + 2, 0); /* allocate a timer for the compare interrupt */ mips->compare_int_timer = device->machine().scheduler().timer_alloc(FUNC(compare_int_callback), (void *)device); /* reset the state */ mips3com_reset(mips); /* register for save states */ device->save_item(NAME(mips->pc)); device->save_item(NAME(mips->r)); device->save_item(NAME(mips->cpr)); device->save_item(NAME(mips->ccr)); device->save_item(NAME(mips->llbit)); device->save_item(NAME(mips->count_zero_time)); for (tlbindex = 0; tlbindex < mips->tlbentries; tlbindex++) { device->save_item(NAME(mips->tlb[tlbindex].page_mask), tlbindex); device->save_item(NAME(mips->tlb[tlbindex].entry_hi), tlbindex); device->save_item(NAME(mips->tlb[tlbindex].entry_lo), tlbindex); } } /*------------------------------------------------- mips3com_exit - common cleanup/exit -------------------------------------------------*/ void mips3com_exit(mips3_state *mips) { if (mips->vtlb != NULL) vtlb_free(mips->vtlb); } /*------------------------------------------------- mips3com_reset - reset the state of all the registers -------------------------------------------------*/ void mips3com_reset(mips3_state *mips) { int tlbindex; /* initialize the state */ mips->pc = 0xbfc00000; mips->cpr[0][COP0_Status] = SR_BEV | SR_ERL; mips->cpr[0][COP0_Wired] = 0; mips->cpr[0][COP0_Compare] = 0xffffffff; mips->cpr[0][COP0_Count] = 0; mips->cpr[0][COP0_Config] = compute_config_register(mips); mips->cpr[0][COP0_PRId] = compute_prid_register(mips); mips->count_zero_time = mips->device->total_cycles(); /* initialize the TLB state */ for (tlbindex = 0; tlbindex < mips->tlbentries; tlbindex++) { mips3_tlb_entry *entry = &mips->tlb[tlbindex]; entry->page_mask = 0; entry->entry_hi = 0xffffffff; entry->entry_lo[0] = 0xfffffff8; entry->entry_lo[1] = 0xfffffff8; vtlb_load(mips->vtlb, 2 * tlbindex + 0, 0, 0, 0); vtlb_load(mips->vtlb, 2 * tlbindex + 1, 0, 0, 0); } /* load the fixed TLB range */ vtlb_load(mips->vtlb, 2 * mips->tlbentries + 0, (0xa0000000 - 0x80000000) >> MIPS3_MIN_PAGE_SHIFT, 0x80000000, 0x00000000 | VTLB_READ_ALLOWED | VTLB_WRITE_ALLOWED | VTLB_FETCH_ALLOWED | VTLB_FLAG_VALID); vtlb_load(mips->vtlb, 2 * mips->tlbentries + 1, (0xc0000000 - 0xa0000000) >> MIPS3_MIN_PAGE_SHIFT, 0xa0000000, 0x00000000 | VTLB_READ_ALLOWED | VTLB_WRITE_ALLOWED | VTLB_FETCH_ALLOWED | VTLB_FLAG_VALID); } /*------------------------------------------------- mips3com_dasm - handle disassembly for a CPU -------------------------------------------------*/ offs_t mips3com_dasm(mips3_state *mips, char *buffer, offs_t pc, const UINT8 *oprom, const UINT8 *opram) { extern unsigned dasmmips3(char *, unsigned, UINT32); UINT32 op = *(UINT32 *)oprom; if (mips->bigendian) op = BIG_ENDIANIZE_INT32(op); else op = LITTLE_ENDIANIZE_INT32(op); return dasmmips3(buffer, pc, op); } /*------------------------------------------------- mips3com_update_cycle_counting - update cycle counts and the timers -------------------------------------------------*/ void mips3com_update_cycle_counting(mips3_state *mips) { /* modify the timer to go off */ if (mips->compare_armed && (mips->cpr[0][COP0_Status] & SR_IMEX5)) { UINT32 count = (mips->device->total_cycles() - mips->count_zero_time) / 2; UINT32 compare = mips->cpr[0][COP0_Compare]; UINT32 delta = compare - count; attotime newtime = mips->device->cycles_to_attotime((UINT64)delta * 2); mips->compare_int_timer->adjust(newtime); return; } mips->compare_int_timer->adjust(attotime::never); } /*************************************************************************** TLB HANDLING ***************************************************************************/ /*------------------------------------------------- mips3com_asid_changed - remap all non-global TLB entries -------------------------------------------------*/ void mips3com_asid_changed(mips3_state *mips) { int tlbindex; /* iterate over all non-global TLB entries and remap them */ for (tlbindex = 0; tlbindex < mips->tlbentries; tlbindex++) if (!tlb_entry_is_global(&mips->tlb[tlbindex])) tlb_map_entry(mips, tlbindex); } /*------------------------------------------------- mips3com_translate_address - translate an address from logical to physical -------------------------------------------------*/ int mips3com_translate_address(mips3_state *mips, address_spacenum space, int intention, offs_t *address) { /* only applies to the program address space */ if (space == AS_PROGRAM) { const vtlb_entry *table = vtlb_table(mips->vtlb); vtlb_entry entry = table[*address >> MIPS3_MIN_PAGE_SHIFT]; if ((entry & (1 << (intention & (TRANSLATE_TYPE_MASK | TRANSLATE_USER_MASK)))) == 0) return FALSE; *address = (entry & ~MIPS3_MIN_PAGE_MASK) | (*address & MIPS3_MIN_PAGE_MASK); } return TRUE; } /*------------------------------------------------- mips3com_tlbr - execute the tlbr instruction -------------------------------------------------*/ void mips3com_tlbr(mips3_state *mips) { UINT32 tlbindex = mips->cpr[0][COP0_Index] & 0x3f; /* only handle entries within the TLB */ if (tlbindex < mips->tlbentries) { mips3_tlb_entry *entry = &mips->tlb[tlbindex]; /* copy data from the TLB entry into the COP0 registers */ mips->cpr[0][COP0_PageMask] = entry->page_mask; mips->cpr[0][COP0_EntryHi] = entry->entry_hi; mips->cpr[0][COP0_EntryLo0] = entry->entry_lo[0]; mips->cpr[0][COP0_EntryLo1] = entry->entry_lo[1]; } } /*------------------------------------------------- mips3com_tlbwi - execute the tlbwi instruction -------------------------------------------------*/ void mips3com_tlbwi(mips3_state *mips) { /* use the common handler and write based off the COP0 Index register */ tlb_write_common(mips, mips->cpr[0][COP0_Index] & 0x3f); } /*------------------------------------------------- mips3com_tlbwr - execute the tlbwr instruction -------------------------------------------------*/ void mips3com_tlbwr(mips3_state *mips) { UINT32 wired = mips->cpr[0][COP0_Wired] & 0x3f; UINT32 unwired = mips->tlbentries - wired; UINT32 tlbindex = mips->tlbentries - 1; /* "random" is based off of the current cycle counting through the non-wired pages */ if (unwired > 0) tlbindex = ((mips->device->total_cycles() - mips->count_zero_time) % unwired + wired) & 0x3f; /* use the common handler to write to this tlbindex */ tlb_write_common(mips, tlbindex); } /*------------------------------------------------- mips3com_tlbp - execute the tlbp instruction -------------------------------------------------*/ void mips3com_tlbp(mips3_state *mips) { UINT32 tlbindex; // UINT64 vpn; /* iterate over TLB entries */ for (tlbindex = 0; tlbindex < mips->tlbentries; tlbindex++) { mips3_tlb_entry *entry = &mips->tlb[tlbindex]; UINT64 mask = ~((entry->page_mask >> 13) & 0xfff) << 13; /* if the relevant bits of EntryHi match the relevant bits of the TLB */ if ((entry->entry_hi & mask) == (mips->cpr[0][COP0_EntryHi] & mask)) /* and if we are either global or matching the current ASID, then stop */ if ((entry->entry_hi & 0xff) == (mips->cpr[0][COP0_EntryHi] & 0xff) || ((entry->entry_lo[0] & entry->entry_lo[1]) & TLB_GLOBAL)) break; } /* validate that our tlb_table was in sync */ // vpn = ((mips->cpr[0][COP0_EntryHi] >> 13) & 0x07ffffff) << 1; if (tlbindex != mips->tlbentries) mips->cpr[0][COP0_Index] = tlbindex; else mips->cpr[0][COP0_Index] = 0x80000000; } /*************************************************************************** COMMON GET/SET INFO ***************************************************************************/ /*------------------------------------------------- mips3com_set_info - set information about a MIPS 3 CPU -------------------------------------------------*/ void mips3com_set_info(mips3_state *mips, UINT32 state, cpuinfo *info) { switch (state) { /* --- the following bits of info are set as 64-bit signed integers --- */ case CPUINFO_INT_INPUT_STATE + MIPS3_IRQ0: mips3com_set_irq_line(mips, MIPS3_IRQ0, info->i); break; case CPUINFO_INT_INPUT_STATE + MIPS3_IRQ1: mips3com_set_irq_line(mips, MIPS3_IRQ1, info->i); break; case CPUINFO_INT_INPUT_STATE + MIPS3_IRQ2: mips3com_set_irq_line(mips, MIPS3_IRQ2, info->i); break; case CPUINFO_INT_INPUT_STATE + MIPS3_IRQ3: mips3com_set_irq_line(mips, MIPS3_IRQ3, info->i); break; case CPUINFO_INT_INPUT_STATE + MIPS3_IRQ4: mips3com_set_irq_line(mips, MIPS3_IRQ4, info->i); break; case CPUINFO_INT_INPUT_STATE + MIPS3_IRQ5: mips3com_set_irq_line(mips, MIPS3_IRQ5, info->i); break; case CPUINFO_INT_PC: case CPUINFO_INT_REGISTER + MIPS3_PC: mips->pc = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_SR: mips->cpr[0][COP0_Status] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_EPC: mips->cpr[0][COP0_EPC] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_CAUSE: mips->cpr[0][COP0_Cause] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_COUNT: mips->cpr[0][COP0_Count] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_COMPARE: mips->cpr[0][COP0_Compare] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_INDEX: mips->cpr[0][COP0_Index] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_RANDOM: mips->cpr[0][COP0_Random] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_ENTRYHI: mips->cpr[0][COP0_EntryHi] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_ENTRYLO0: mips->cpr[0][COP0_EntryLo0] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_ENTRYLO1: mips->cpr[0][COP0_EntryLo1] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_PAGEMASK: mips->cpr[0][COP0_PageMask] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_WIRED: mips->cpr[0][COP0_Wired] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_BADVADDR: mips->cpr[0][COP0_BadVAddr] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R0: /* can't change R0 */ break; case CPUINFO_INT_REGISTER + MIPS3_R1: mips->r[1] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R2: mips->r[2] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R3: mips->r[3] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R4: mips->r[4] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R5: mips->r[5] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R6: mips->r[6] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R7: mips->r[7] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R8: mips->r[8] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R9: mips->r[9] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R10: mips->r[10] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R11: mips->r[11] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R12: mips->r[12] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R13: mips->r[13] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R14: mips->r[14] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R15: mips->r[15] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R16: mips->r[16] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R17: mips->r[17] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R18: mips->r[18] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R19: mips->r[19] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R20: mips->r[20] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R21: mips->r[21] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R22: mips->r[22] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R23: mips->r[23] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R24: mips->r[24] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R25: mips->r[25] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R26: mips->r[26] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R27: mips->r[27] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R28: mips->r[28] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R29: mips->r[29] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_R30: mips->r[30] = info->i; break; case CPUINFO_INT_SP: case CPUINFO_INT_REGISTER + MIPS3_R31: mips->r[31] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_HI: mips->r[REG_HI] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_LO: mips->r[REG_LO] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR0: mips->cpr[1][0] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR1: mips->cpr[1][1] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR2: mips->cpr[1][2] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR3: mips->cpr[1][3] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR4: mips->cpr[1][4] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR5: mips->cpr[1][5] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR6: mips->cpr[1][6] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR7: mips->cpr[1][7] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR8: mips->cpr[1][8] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR9: mips->cpr[1][9] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR10: mips->cpr[1][10] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR11: mips->cpr[1][11] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR12: mips->cpr[1][12] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR13: mips->cpr[1][13] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR14: mips->cpr[1][14] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR15: mips->cpr[1][15] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR16: mips->cpr[1][16] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR17: mips->cpr[1][17] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR18: mips->cpr[1][18] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR19: mips->cpr[1][19] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR20: mips->cpr[1][20] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR21: mips->cpr[1][21] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR22: mips->cpr[1][22] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR23: mips->cpr[1][23] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR24: mips->cpr[1][24] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR25: mips->cpr[1][25] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR26: mips->cpr[1][26] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR27: mips->cpr[1][27] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR28: mips->cpr[1][28] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR29: mips->cpr[1][29] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR30: mips->cpr[1][30] = info->i; break; case CPUINFO_INT_REGISTER + MIPS3_FPR31: mips->cpr[1][31] = info->i; break; } } /*------------------------------------------------- mips3com_get_info - get information about a MIPS 3 CPU -------------------------------------------------*/ void mips3com_get_info(mips3_state *mips, UINT32 state, cpuinfo *info) { switch (state) { /* --- the following bits of info are returned as 64-bit signed integers --- */ case CPUINFO_INT_CONTEXT_SIZE: /* provided by core */ break; case CPUINFO_INT_INPUT_LINES: info->i = 6; break; case CPUINFO_INT_DEFAULT_IRQ_VECTOR: info->i = 0; break; case DEVINFO_INT_ENDIANNESS: info->i = mips->bigendian ? ENDIANNESS_BIG : ENDIANNESS_LITTLE; break; case CPUINFO_INT_CLOCK_MULTIPLIER: info->i = 1; break; case CPUINFO_INT_CLOCK_DIVIDER: info->i = 1; break; case CPUINFO_INT_MIN_INSTRUCTION_BYTES: info->i = 4; break; case CPUINFO_INT_MAX_INSTRUCTION_BYTES: info->i = 4; break; case CPUINFO_INT_MIN_CYCLES: info->i = 1; break; case CPUINFO_INT_MAX_CYCLES: info->i = 40; break; case DEVINFO_INT_DATABUS_WIDTH + AS_PROGRAM: info->i = MIPS3_MAX_PADDR_SHIFT;break; case DEVINFO_INT_ADDRBUS_WIDTH + AS_PROGRAM: info->i = 32; break; case DEVINFO_INT_ADDRBUS_SHIFT + AS_PROGRAM: info->i = 0; break; case CPUINFO_INT_LOGADDR_WIDTH_PROGRAM: info->i = 32; break; case CPUINFO_INT_PAGE_SHIFT_PROGRAM: info->i = MIPS3_MIN_PAGE_SHIFT; break; case CPUINFO_INT_INPUT_STATE + MIPS3_IRQ0: info->i = (mips->cpr[0][COP0_Cause] & 0x400) ? ASSERT_LINE : CLEAR_LINE; break; case CPUINFO_INT_INPUT_STATE + MIPS3_IRQ1: info->i = (mips->cpr[0][COP0_Cause] & 0x800) ? ASSERT_LINE : CLEAR_LINE; break; case CPUINFO_INT_INPUT_STATE + MIPS3_IRQ2: info->i = (mips->cpr[0][COP0_Cause] & 0x1000) ? ASSERT_LINE : CLEAR_LINE; break; case CPUINFO_INT_INPUT_STATE + MIPS3_IRQ3: info->i = (mips->cpr[0][COP0_Cause] & 0x2000) ? ASSERT_LINE : CLEAR_LINE; break; case CPUINFO_INT_INPUT_STATE + MIPS3_IRQ4: info->i = (mips->cpr[0][COP0_Cause] & 0x4000) ? ASSERT_LINE : CLEAR_LINE; break; case CPUINFO_INT_INPUT_STATE + MIPS3_IRQ5: info->i = (mips->cpr[0][COP0_Cause] & 0x8000) ? ASSERT_LINE : CLEAR_LINE; break; case CPUINFO_INT_PREVIOUSPC: /* optionally implemented */ break; case CPUINFO_INT_PC: case CPUINFO_INT_REGISTER + MIPS3_PC: info->i = mips->pc; break; case CPUINFO_INT_REGISTER + MIPS3_SR: info->i = mips->cpr[0][COP0_Status]; break; case CPUINFO_INT_REGISTER + MIPS3_EPC: info->i = mips->cpr[0][COP0_EPC]; break; case CPUINFO_INT_REGISTER + MIPS3_CAUSE: info->i = mips->cpr[0][COP0_Cause]; break; case CPUINFO_INT_REGISTER + MIPS3_COUNT: info->i = ((mips->device->total_cycles() - mips->count_zero_time) / 2); break; case CPUINFO_INT_REGISTER + MIPS3_COMPARE: info->i = mips->cpr[0][COP0_Compare]; break; case CPUINFO_INT_REGISTER + MIPS3_INDEX: info->i = mips->cpr[0][COP0_Index]; break; case CPUINFO_INT_REGISTER + MIPS3_RANDOM: info->i = mips->cpr[0][COP0_Random]; break; case CPUINFO_INT_REGISTER + MIPS3_ENTRYHI: info->i = mips->cpr[0][COP0_EntryHi]; break; case CPUINFO_INT_REGISTER + MIPS3_ENTRYLO0: info->i = mips->cpr[0][COP0_EntryLo0]; break; case CPUINFO_INT_REGISTER + MIPS3_ENTRYLO1: info->i = mips->cpr[0][COP0_EntryLo1]; break; case CPUINFO_INT_REGISTER + MIPS3_PAGEMASK: info->i = mips->cpr[0][COP0_PageMask]; break; case CPUINFO_INT_REGISTER + MIPS3_WIRED: info->i = mips->cpr[0][COP0_Wired]; break; case CPUINFO_INT_REGISTER + MIPS3_BADVADDR: info->i = mips->cpr[0][COP0_BadVAddr]; break; case CPUINFO_INT_REGISTER + MIPS3_R0: info->i = mips->r[0]; break; case CPUINFO_INT_REGISTER + MIPS3_R1: info->i = mips->r[1]; break; case CPUINFO_INT_REGISTER + MIPS3_R2: info->i = mips->r[2]; break; case CPUINFO_INT_REGISTER + MIPS3_R3: info->i = mips->r[3]; break; case CPUINFO_INT_REGISTER + MIPS3_R4: info->i = mips->r[4]; break; case CPUINFO_INT_REGISTER + MIPS3_R5: info->i = mips->r[5]; break; case CPUINFO_INT_REGISTER + MIPS3_R6: info->i = mips->r[6]; break; case CPUINFO_INT_REGISTER + MIPS3_R7: info->i = mips->r[7]; break; case CPUINFO_INT_REGISTER + MIPS3_R8: info->i = mips->r[8]; break; case CPUINFO_INT_REGISTER + MIPS3_R9: info->i = mips->r[9]; break; case CPUINFO_INT_REGISTER + MIPS3_R10: info->i = mips->r[10]; break; case CPUINFO_INT_REGISTER + MIPS3_R11: info->i = mips->r[11]; break; case CPUINFO_INT_REGISTER + MIPS3_R12: info->i = mips->r[12]; break; case CPUINFO_INT_REGISTER + MIPS3_R13: info->i = mips->r[13]; break; case CPUINFO_INT_REGISTER + MIPS3_R14: info->i = mips->r[14]; break; case CPUINFO_INT_REGISTER + MIPS3_R15: info->i = mips->r[15]; break; case CPUINFO_INT_REGISTER + MIPS3_R16: info->i = mips->r[16]; break; case CPUINFO_INT_REGISTER + MIPS3_R17: info->i = mips->r[17]; break; case CPUINFO_INT_REGISTER + MIPS3_R18: info->i = mips->r[18]; break; case CPUINFO_INT_REGISTER + MIPS3_R19: info->i = mips->r[19]; break; case CPUINFO_INT_REGISTER + MIPS3_R20: info->i = mips->r[20]; break; case CPUINFO_INT_REGISTER + MIPS3_R21: info->i = mips->r[21]; break; case CPUINFO_INT_REGISTER + MIPS3_R22: info->i = mips->r[22]; break; case CPUINFO_INT_REGISTER + MIPS3_R23: info->i = mips->r[23]; break; case CPUINFO_INT_REGISTER + MIPS3_R24: info->i = mips->r[24]; break; case CPUINFO_INT_REGISTER + MIPS3_R25: info->i = mips->r[25]; break; case CPUINFO_INT_REGISTER + MIPS3_R26: info->i = mips->r[26]; break; case CPUINFO_INT_REGISTER + MIPS3_R27: info->i = mips->r[27]; break; case CPUINFO_INT_REGISTER + MIPS3_R28: info->i = mips->r[28]; break; case CPUINFO_INT_REGISTER + MIPS3_R29: info->i = mips->r[29]; break; case CPUINFO_INT_REGISTER + MIPS3_R30: info->i = mips->r[30]; break; case CPUINFO_INT_SP: case CPUINFO_INT_REGISTER + MIPS3_R31: info->i = mips->r[31]; break; case CPUINFO_INT_REGISTER + MIPS3_HI: info->i = mips->r[REG_HI]; break; case CPUINFO_INT_REGISTER + MIPS3_LO: info->i = mips->r[REG_LO]; break; /* --- the following bits of info are returned as pointers to data or functions --- */ case CPUINFO_FCT_SET_INFO: /* provided by core */ break; case CPUINFO_FCT_INIT: /* provided by core */ break; case CPUINFO_FCT_RESET: /* provided by core */ break; case CPUINFO_FCT_EXIT: /* provided by core */ break; case CPUINFO_FCT_EXECUTE: /* provided by core */ break; case CPUINFO_FCT_TRANSLATE: /* provided by core */ break; case CPUINFO_FCT_DISASSEMBLE: /* provided by core */ break; case CPUINFO_PTR_INSTRUCTION_COUNTER: info->icount = &mips->icount; break; /* --- the following bits of info are returned as NULL-terminated strings --- */ case DEVINFO_STR_NAME: strcpy(info->s, "MIPS III"); break; case DEVINFO_STR_FAMILY: strcpy(info->s, "MIPS III"); break; case DEVINFO_STR_VERSION: strcpy(info->s, "3.0"); break; case DEVINFO_STR_SOURCE_FILE: /* provided by core */ break; case DEVINFO_STR_CREDITS: strcpy(info->s, "Copyright Aaron Giles"); break; case CPUINFO_STR_FLAGS: strcpy(info->s, " "); break; case CPUINFO_STR_REGISTER + MIPS3_PC: sprintf(info->s, "PC: %08X", mips->pc); break; case CPUINFO_STR_REGISTER + MIPS3_SR: sprintf(info->s, "SR: %08X", (UINT32)mips->cpr[0][COP0_Status]); break; case CPUINFO_STR_REGISTER + MIPS3_EPC: sprintf(info->s, "EPC:%08X", (UINT32)mips->cpr[0][COP0_EPC]); break; case CPUINFO_STR_REGISTER + MIPS3_CAUSE: sprintf(info->s, "Cause:%08X", (UINT32)mips->cpr[0][COP0_Cause]); break; case CPUINFO_STR_REGISTER + MIPS3_COUNT: sprintf(info->s, "Count:%08X", (UINT32)((mips->device->total_cycles() - mips->count_zero_time) / 2)); break; case CPUINFO_STR_REGISTER + MIPS3_COMPARE: sprintf(info->s, "Compare:%08X", (UINT32)mips->cpr[0][COP0_Compare]); break; case CPUINFO_STR_REGISTER + MIPS3_INDEX: sprintf(info->s, "Index:%08X", (UINT32)mips->cpr[0][COP0_Index]); break; case CPUINFO_STR_REGISTER + MIPS3_RANDOM: sprintf(info->s, "Random:%08X", (UINT32)mips->cpr[0][COP0_Random]); break; case CPUINFO_STR_REGISTER + MIPS3_ENTRYHI: sprintf(info->s, "EntryHi:%08X%08X", (UINT32)(mips->cpr[0][COP0_EntryHi] >> 32), (UINT32)mips->cpr[0][COP0_EntryHi]); break; case CPUINFO_STR_REGISTER + MIPS3_ENTRYLO0: sprintf(info->s, "EntryLo0:%08X%08X", (UINT32)(mips->cpr[0][COP0_EntryLo0] >> 32), (UINT32)mips->cpr[0][COP0_EntryLo0]); break; case CPUINFO_STR_REGISTER + MIPS3_ENTRYLO1: sprintf(info->s, "EntryLo1:%08X%08X", (UINT32)(mips->cpr[0][COP0_EntryLo1] >> 32), (UINT32)mips->cpr[0][COP0_EntryLo1]); break; case CPUINFO_STR_REGISTER + MIPS3_PAGEMASK: sprintf(info->s, "PageMask:%08X%08X", (UINT32)(mips->cpr[0][COP0_PageMask] >> 32), (UINT32)mips->cpr[0][COP0_PageMask]); break; case CPUINFO_STR_REGISTER + MIPS3_WIRED: sprintf(info->s, "Wired:%08X", (UINT32)mips->cpr[0][COP0_Wired]); break; case CPUINFO_STR_REGISTER + MIPS3_BADVADDR: sprintf(info->s, "BadVAddr:%08X", (UINT32)mips->cpr[0][COP0_BadVAddr]); break; #if USE_ABI_REG_NAMES case CPUINFO_STR_REGISTER + MIPS3_R0: sprintf(info->s, "$zero: %08X%08X", (UINT32)(mips->r[0] >> 32), (UINT32)mips->r[0]); break; case CPUINFO_STR_REGISTER + MIPS3_R1: sprintf(info->s, " $at: %08X%08X", (UINT32)(mips->r[1] >> 32), (UINT32)mips->r[1]); break; case CPUINFO_STR_REGISTER + MIPS3_R2: sprintf(info->s, " $v0: %08X%08X", (UINT32)(mips->r[2] >> 32), (UINT32)mips->r[2]); break; case CPUINFO_STR_REGISTER + MIPS3_R3: sprintf(info->s, " $v1: %08X%08X", (UINT32)(mips->r[3] >> 32), (UINT32)mips->r[3]); break; case CPUINFO_STR_REGISTER + MIPS3_R4: sprintf(info->s, " $a0: %08X%08X", (UINT32)(mips->r[4] >> 32), (UINT32)mips->r[4]); break; case CPUINFO_STR_REGISTER + MIPS3_R5: sprintf(info->s, " $a1: %08X%08X", (UINT32)(mips->r[5] >> 32), (UINT32)mips->r[5]); break; case CPUINFO_STR_REGISTER + MIPS3_R6: sprintf(info->s, " $a2: %08X%08X", (UINT32)(mips->r[6] >> 32), (UINT32)mips->r[6]); break; case CPUINFO_STR_REGISTER + MIPS3_R7: sprintf(info->s, " $a3: %08X%08X", (UINT32)(mips->r[7] >> 32), (UINT32)mips->r[7]); break; case CPUINFO_STR_REGISTER + MIPS3_R8: sprintf(info->s, " $t0: %08X%08X", (UINT32)(mips->r[8] >> 32), (UINT32)mips->r[8]); break; case CPUINFO_STR_REGISTER + MIPS3_R9: sprintf(info->s, " $t1: %08X%08X", (UINT32)(mips->r[9] >> 32), (UINT32)mips->r[9]); break; case CPUINFO_STR_REGISTER + MIPS3_R10: sprintf(info->s, " $t2:%08X%08X", (UINT32)(mips->r[10] >> 32), (UINT32)mips->r[10]); break; case CPUINFO_STR_REGISTER + MIPS3_R11: sprintf(info->s, " $t3:%08X%08X", (UINT32)(mips->r[11] >> 32), (UINT32)mips->r[11]); break; case CPUINFO_STR_REGISTER + MIPS3_R12: sprintf(info->s, " $t4:%08X%08X", (UINT32)(mips->r[12] >> 32), (UINT32)mips->r[12]); break; case CPUINFO_STR_REGISTER + MIPS3_R13: sprintf(info->s, " $t5:%08X%08X", (UINT32)(mips->r[13] >> 32), (UINT32)mips->r[13]); break; case CPUINFO_STR_REGISTER + MIPS3_R14: sprintf(info->s, " $t6:%08X%08X", (UINT32)(mips->r[14] >> 32), (UINT32)mips->r[14]); break; case CPUINFO_STR_REGISTER + MIPS3_R15: sprintf(info->s, " $t7:%08X%08X", (UINT32)(mips->r[15] >> 32), (UINT32)mips->r[15]); break; case CPUINFO_STR_REGISTER + MIPS3_R16: sprintf(info->s, " $s0:%08X%08X", (UINT32)(mips->r[16] >> 32), (UINT32)mips->r[16]); break; case CPUINFO_STR_REGISTER + MIPS3_R17: sprintf(info->s, " $s1:%08X%08X", (UINT32)(mips->r[17] >> 32), (UINT32)mips->r[17]); break; case CPUINFO_STR_REGISTER + MIPS3_R18: sprintf(info->s, " $s2:%08X%08X", (UINT32)(mips->r[18] >> 32), (UINT32)mips->r[18]); break; case CPUINFO_STR_REGISTER + MIPS3_R19: sprintf(info->s, " $s3:%08X%08X", (UINT32)(mips->r[19] >> 32), (UINT32)mips->r[19]); break; case CPUINFO_STR_REGISTER + MIPS3_R20: sprintf(info->s, " $s4:%08X%08X", (UINT32)(mips->r[20] >> 32), (UINT32)mips->r[20]); break; case CPUINFO_STR_REGISTER + MIPS3_R21: sprintf(info->s, " $s5:%08X%08X", (UINT32)(mips->r[21] >> 32), (UINT32)mips->r[21]); break; case CPUINFO_STR_REGISTER + MIPS3_R22: sprintf(info->s, " $s6:%08X%08X", (UINT32)(mips->r[22] >> 32), (UINT32)mips->r[22]); break; case CPUINFO_STR_REGISTER + MIPS3_R23: sprintf(info->s, " $s7:%08X%08X", (UINT32)(mips->r[23] >> 32), (UINT32)mips->r[23]); break; case CPUINFO_STR_REGISTER + MIPS3_R24: sprintf(info->s, " $t8:%08X%08X", (UINT32)(mips->r[24] >> 32), (UINT32)mips->r[24]); break; case CPUINFO_STR_REGISTER + MIPS3_R25: sprintf(info->s, " $t9:%08X%08X", (UINT32)(mips->r[25] >> 32), (UINT32)mips->r[25]); break; case CPUINFO_STR_REGISTER + MIPS3_R26: sprintf(info->s, " $k0:%08X%08X", (UINT32)(mips->r[26] >> 32), (UINT32)mips->r[26]); break; case CPUINFO_STR_REGISTER + MIPS3_R27: sprintf(info->s, " $k1:%08X%08X", (UINT32)(mips->r[27] >> 32), (UINT32)mips->r[27]); break; case CPUINFO_STR_REGISTER + MIPS3_R28: sprintf(info->s, " $gp:%08X%08X", (UINT32)(mips->r[28] >> 32), (UINT32)mips->r[28]); break; case CPUINFO_STR_REGISTER + MIPS3_R29: sprintf(info->s, " $sp:%08X%08X", (UINT32)(mips->r[29] >> 32), (UINT32)mips->r[29]); break; case CPUINFO_STR_REGISTER + MIPS3_R30: sprintf(info->s, " $fp:%08X%08X", (UINT32)(mips->r[30] >> 32), (UINT32)mips->r[30]); break; case CPUINFO_STR_REGISTER + MIPS3_R31: sprintf(info->s, " $ra:%08X%08X", (UINT32)(mips->r[31] >> 32), (UINT32)mips->r[31]); break; #else case CPUINFO_STR_REGISTER + MIPS3_R0: sprintf(info->s, " R0: %08X%08X", (UINT32)(mips->r[0] >> 32), (UINT32)mips->r[0]); break; case CPUINFO_STR_REGISTER + MIPS3_R1: sprintf(info->s, " R1: %08X%08X", (UINT32)(mips->r[1] >> 32), (UINT32)mips->r[1]); break; case CPUINFO_STR_REGISTER + MIPS3_R2: sprintf(info->s, " R2: %08X%08X", (UINT32)(mips->r[2] >> 32), (UINT32)mips->r[2]); break; case CPUINFO_STR_REGISTER + MIPS3_R3: sprintf(info->s, " R3: %08X%08X", (UINT32)(mips->r[3] >> 32), (UINT32)mips->r[3]); break; case CPUINFO_STR_REGISTER + MIPS3_R4: sprintf(info->s, " R4: %08X%08X", (UINT32)(mips->r[4] >> 32), (UINT32)mips->r[4]); break; case CPUINFO_STR_REGISTER + MIPS3_R5: sprintf(info->s, " R5: %08X%08X", (UINT32)(mips->r[5] >> 32), (UINT32)mips->r[5]); break; case CPUINFO_STR_REGISTER + MIPS3_R6: sprintf(info->s, " R6: %08X%08X", (UINT32)(mips->r[6] >> 32), (UINT32)mips->r[6]); break; case CPUINFO_STR_REGISTER + MIPS3_R7: sprintf(info->s, " R7: %08X%08X", (UINT32)(mips->r[7] >> 32), (UINT32)mips->r[7]); break; case CPUINFO_STR_REGISTER + MIPS3_R8: sprintf(info->s, " R8: %08X%08X", (UINT32)(mips->r[8] >> 32), (UINT32)mips->r[8]); break; case CPUINFO_STR_REGISTER + MIPS3_R9: sprintf(info->s, " R9: %08X%08X", (UINT32)(mips->r[9] >> 32), (UINT32)mips->r[9]); break; case CPUINFO_STR_REGISTER + MIPS3_R10: sprintf(info->s, "R10: %08X%08X", (UINT32)(mips->r[10] >> 32), (UINT32)mips->r[10]); break; case CPUINFO_STR_REGISTER + MIPS3_R11: sprintf(info->s, "R11: %08X%08X", (UINT32)(mips->r[11] >> 32), (UINT32)mips->r[11]); break; case CPUINFO_STR_REGISTER + MIPS3_R12: sprintf(info->s, "R12: %08X%08X", (UINT32)(mips->r[12] >> 32), (UINT32)mips->r[12]); break; case CPUINFO_STR_REGISTER + MIPS3_R13: sprintf(info->s, "R13: %08X%08X", (UINT32)(mips->r[13] >> 32), (UINT32)mips->r[13]); break; case CPUINFO_STR_REGISTER + MIPS3_R14: sprintf(info->s, "R14: %08X%08X", (UINT32)(mips->r[14] >> 32), (UINT32)mips->r[14]); break; case CPUINFO_STR_REGISTER + MIPS3_R15: sprintf(info->s, "R15: %08X%08X", (UINT32)(mips->r[15] >> 32), (UINT32)mips->r[15]); break; case CPUINFO_STR_REGISTER + MIPS3_R16: sprintf(info->s, "R16: %08X%08X", (UINT32)(mips->r[16] >> 32), (UINT32)mips->r[16]); break; case CPUINFO_STR_REGISTER + MIPS3_R17: sprintf(info->s, "R17: %08X%08X", (UINT32)(mips->r[17] >> 32), (UINT32)mips->r[17]); break; case CPUINFO_STR_REGISTER + MIPS3_R18: sprintf(info->s, "R18: %08X%08X", (UINT32)(mips->r[18] >> 32), (UINT32)mips->r[18]); break; case CPUINFO_STR_REGISTER + MIPS3_R19: sprintf(info->s, "R19: %08X%08X", (UINT32)(mips->r[19] >> 32), (UINT32)mips->r[19]); break; case CPUINFO_STR_REGISTER + MIPS3_R20: sprintf(info->s, "R20: %08X%08X", (UINT32)(mips->r[20] >> 32), (UINT32)mips->r[20]); break; case CPUINFO_STR_REGISTER + MIPS3_R21: sprintf(info->s, "R21: %08X%08X", (UINT32)(mips->r[21] >> 32), (UINT32)mips->r[21]); break; case CPUINFO_STR_REGISTER + MIPS3_R22: sprintf(info->s, "R22: %08X%08X", (UINT32)(mips->r[22] >> 32), (UINT32)mips->r[22]); break; case CPUINFO_STR_REGISTER + MIPS3_R23: sprintf(info->s, "R23: %08X%08X", (UINT32)(mips->r[23] >> 32), (UINT32)mips->r[23]); break; case CPUINFO_STR_REGISTER + MIPS3_R24: sprintf(info->s, "R24: %08X%08X", (UINT32)(mips->r[24] >> 32), (UINT32)mips->r[24]); break; case CPUINFO_STR_REGISTER + MIPS3_R25: sprintf(info->s, "R25: %08X%08X", (UINT32)(mips->r[25] >> 32), (UINT32)mips->r[25]); break; case CPUINFO_STR_REGISTER + MIPS3_R26: sprintf(info->s, "R26: %08X%08X", (UINT32)(mips->r[26] >> 32), (UINT32)mips->r[26]); break; case CPUINFO_STR_REGISTER + MIPS3_R27: sprintf(info->s, "R27: %08X%08X", (UINT32)(mips->r[27] >> 32), (UINT32)mips->r[27]); break; case CPUINFO_STR_REGISTER + MIPS3_R28: sprintf(info->s, "R28: %08X%08X", (UINT32)(mips->r[28] >> 32), (UINT32)mips->r[28]); break; case CPUINFO_STR_REGISTER + MIPS3_R29: sprintf(info->s, "R29: %08X%08X", (UINT32)(mips->r[29] >> 32), (UINT32)mips->r[29]); break; case CPUINFO_STR_REGISTER + MIPS3_R30: sprintf(info->s, "R30: %08X%08X", (UINT32)(mips->r[30] >> 32), (UINT32)mips->r[30]); break; case CPUINFO_STR_REGISTER + MIPS3_R31: sprintf(info->s, "R31: %08X%08X", (UINT32)(mips->r[31] >> 32), (UINT32)mips->r[31]); break; #endif case CPUINFO_STR_REGISTER + MIPS3_HI: sprintf(info->s, "HI: %08X%08X", (UINT32)(mips->r[REG_HI] >> 32), (UINT32)mips->r[REG_HI]); break; case CPUINFO_STR_REGISTER + MIPS3_LO: sprintf(info->s, "LO: %08X%08X", (UINT32)(mips->r[REG_LO] >> 32), (UINT32)mips->r[REG_LO]); break; case CPUINFO_STR_REGISTER + MIPS3_CCR1_31: sprintf(info->s, "CCR31:%08X", (UINT32)mips->ccr[1][31]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR0: sprintf(info->s, "FPR0: %08X%08X", (UINT32)(mips->cpr[1][0] >> 32), (UINT32)mips->cpr[1][0]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS0: sprintf(info->s, "FPS0: !%16g", *(float *)&mips->cpr[1][0]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD0: sprintf(info->s, "FPD0: !%16g", *(double *)&mips->cpr[1][0]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR1: sprintf(info->s, "FPR1: %08X%08X", (UINT32)(mips->cpr[1][1] >> 32), (UINT32)mips->cpr[1][1]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS1: sprintf(info->s, "FPS1: !%16g", *(float *)&mips->cpr[1][1]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD1: sprintf(info->s, "FPD1: !%16g", *(double *)&mips->cpr[1][1]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR2: sprintf(info->s, "FPR2: %08X%08X", (UINT32)(mips->cpr[1][2] >> 32), (UINT32)mips->cpr[1][2]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS2: sprintf(info->s, "FPS2: !%16g", *(float *)&mips->cpr[1][2]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD2: sprintf(info->s, "FPD2: !%16g", *(double *)&mips->cpr[1][2]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR3: sprintf(info->s, "FPR3: %08X%08X", (UINT32)(mips->cpr[1][3] >> 32), (UINT32)mips->cpr[1][3]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS3: sprintf(info->s, "FPS3: !%16g", *(float *)&mips->cpr[1][3]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD3: sprintf(info->s, "FPD3: !%16g", *(double *)&mips->cpr[1][3]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR4: sprintf(info->s, "FPR4: %08X%08X", (UINT32)(mips->cpr[1][4] >> 32), (UINT32)mips->cpr[1][4]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS4: sprintf(info->s, "FPS4: !%16g", *(float *)&mips->cpr[1][4]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD4: sprintf(info->s, "FPD4: !%16g", *(double *)&mips->cpr[1][4]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR5: sprintf(info->s, "FPR5: %08X%08X", (UINT32)(mips->cpr[1][5] >> 32), (UINT32)mips->cpr[1][5]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS5: sprintf(info->s, "FPS5: !%16g", *(float *)&mips->cpr[1][5]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD5: sprintf(info->s, "FPD5: !%16g", *(double *)&mips->cpr[1][5]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR6: sprintf(info->s, "FPR6: %08X%08X", (UINT32)(mips->cpr[1][6] >> 32), (UINT32)mips->cpr[1][6]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS6: sprintf(info->s, "FPS6: !%16g", *(float *)&mips->cpr[1][6]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD6: sprintf(info->s, "FPD6: !%16g", *(double *)&mips->cpr[1][6]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR7: sprintf(info->s, "FPR7: %08X%08X", (UINT32)(mips->cpr[1][7] >> 32), (UINT32)mips->cpr[1][7]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS7: sprintf(info->s, "FPS7: !%16g", *(float *)&mips->cpr[1][7]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD7: sprintf(info->s, "FPD7: !%16g", *(double *)&mips->cpr[1][7]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR8: sprintf(info->s, "FPR8: %08X%08X", (UINT32)(mips->cpr[1][8] >> 32), (UINT32)mips->cpr[1][8]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS8: sprintf(info->s, "FPS8: !%16g", *(float *)&mips->cpr[1][8]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD8: sprintf(info->s, "FPD8: !%16g", *(double *)&mips->cpr[1][8]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR9: sprintf(info->s, "FPR9: %08X%08X", (UINT32)(mips->cpr[1][9] >> 32), (UINT32)mips->cpr[1][9]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS9: sprintf(info->s, "FPS9: !%16g", *(float *)&mips->cpr[1][9]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD9: sprintf(info->s, "FPD9: !%16g", *(double *)&mips->cpr[1][9]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR10: sprintf(info->s, "FPR10:%08X%08X", (UINT32)(mips->cpr[1][10] >> 32), (UINT32)mips->cpr[1][10]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS10: sprintf(info->s, "FPS10:!%16g", *(float *)&mips->cpr[1][10]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD10: sprintf(info->s, "FPD10:!%16g", *(double *)&mips->cpr[1][10]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR11: sprintf(info->s, "FPR11:%08X%08X", (UINT32)(mips->cpr[1][11] >> 32), (UINT32)mips->cpr[1][11]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS11: sprintf(info->s, "FPS11:!%16g", *(float *)&mips->cpr[1][11]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD11: sprintf(info->s, "FPD11:!%16g", *(double *)&mips->cpr[1][11]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR12: sprintf(info->s, "FPR12:%08X%08X", (UINT32)(mips->cpr[1][12] >> 32), (UINT32)mips->cpr[1][12]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS12: sprintf(info->s, "FPS12:!%16g", *(float *)&mips->cpr[1][12]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD12: sprintf(info->s, "FPD12:!%16g", *(double *)&mips->cpr[1][12]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR13: sprintf(info->s, "FPR13:%08X%08X", (UINT32)(mips->cpr[1][13] >> 32), (UINT32)mips->cpr[1][13]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS13: sprintf(info->s, "FPS13:!%16g", *(float *)&mips->cpr[1][13]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD13: sprintf(info->s, "FPD13:!%16g", *(double *)&mips->cpr[1][13]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR14: sprintf(info->s, "FPR14:%08X%08X", (UINT32)(mips->cpr[1][14] >> 32), (UINT32)mips->cpr[1][14]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS14: sprintf(info->s, "FPS14:!%16g", *(float *)&mips->cpr[1][14]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD14: sprintf(info->s, "FPD14:!%16g", *(double *)&mips->cpr[1][14]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR15: sprintf(info->s, "FPR15:%08X%08X", (UINT32)(mips->cpr[1][15] >> 32), (UINT32)mips->cpr[1][15]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS15: sprintf(info->s, "FPS15:!%16g", *(float *)&mips->cpr[1][15]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD15: sprintf(info->s, "FPD15:!%16g", *(double *)&mips->cpr[1][15]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR16: sprintf(info->s, "FPR16:%08X%08X", (UINT32)(mips->cpr[1][16] >> 32), (UINT32)mips->cpr[1][16]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS16: sprintf(info->s, "FPS16:!%16g", *(float *)&mips->cpr[1][16]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD16: sprintf(info->s, "FPD16:!%16g", *(double *)&mips->cpr[1][16]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR17: sprintf(info->s, "FPR17:%08X%08X", (UINT32)(mips->cpr[1][17] >> 32), (UINT32)mips->cpr[1][17]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS17: sprintf(info->s, "FPS17:!%16g", *(float *)&mips->cpr[1][17]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD17: sprintf(info->s, "FPD17:!%16g", *(double *)&mips->cpr[1][17]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR18: sprintf(info->s, "FPR18:%08X%08X", (UINT32)(mips->cpr[1][18] >> 32), (UINT32)mips->cpr[1][18]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS18: sprintf(info->s, "FPS18:!%16g", *(float *)&mips->cpr[1][18]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD18: sprintf(info->s, "FPD18:!%16g", *(double *)&mips->cpr[1][18]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR19: sprintf(info->s, "FPR19:%08X%08X", (UINT32)(mips->cpr[1][19] >> 32), (UINT32)mips->cpr[1][19]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS19: sprintf(info->s, "FPS19:!%16g", *(float *)&mips->cpr[1][19]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD19: sprintf(info->s, "FPD19:!%16g", *(double *)&mips->cpr[1][19]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR20: sprintf(info->s, "FPR20:%08X%08X", (UINT32)(mips->cpr[1][20] >> 32), (UINT32)mips->cpr[1][20]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS20: sprintf(info->s, "FPS20:!%16g", *(float *)&mips->cpr[1][20]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD20: sprintf(info->s, "FPD20:!%16g", *(double *)&mips->cpr[1][20]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR21: sprintf(info->s, "FPR21:%08X%08X", (UINT32)(mips->cpr[1][21] >> 32), (UINT32)mips->cpr[1][21]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS21: sprintf(info->s, "FPS21:!%16g", *(float *)&mips->cpr[1][21]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD21: sprintf(info->s, "FPD21:!%16g", *(double *)&mips->cpr[1][21]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR22: sprintf(info->s, "FPR22:%08X%08X", (UINT32)(mips->cpr[1][22] >> 32), (UINT32)mips->cpr[1][22]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS22: sprintf(info->s, "FPS22:!%16g", *(float *)&mips->cpr[1][22]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD22: sprintf(info->s, "FPD22:!%16g", *(double *)&mips->cpr[1][22]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR23: sprintf(info->s, "FPR23:%08X%08X", (UINT32)(mips->cpr[1][23] >> 32), (UINT32)mips->cpr[1][23]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS23: sprintf(info->s, "FPS23:!%16g", *(float *)&mips->cpr[1][23]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD23: sprintf(info->s, "FPD23:!%16g", *(double *)&mips->cpr[1][23]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR24: sprintf(info->s, "FPR24:%08X%08X", (UINT32)(mips->cpr[1][24] >> 32), (UINT32)mips->cpr[1][24]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS24: sprintf(info->s, "FPS24:!%16g", *(float *)&mips->cpr[1][24]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD24: sprintf(info->s, "FPD24:!%16g", *(double *)&mips->cpr[1][24]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR25: sprintf(info->s, "FPR25:%08X%08X", (UINT32)(mips->cpr[1][25] >> 32), (UINT32)mips->cpr[1][25]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS25: sprintf(info->s, "FPS25:!%16g", *(float *)&mips->cpr[1][25]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD25: sprintf(info->s, "FPD25:!%16g", *(double *)&mips->cpr[1][25]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR26: sprintf(info->s, "FPR26:%08X%08X", (UINT32)(mips->cpr[1][26] >> 32), (UINT32)mips->cpr[1][26]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS26: sprintf(info->s, "FPS26:!%16g", *(float *)&mips->cpr[1][26]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD26: sprintf(info->s, "FPD26:!%16g", *(double *)&mips->cpr[1][26]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR27: sprintf(info->s, "FPR27:%08X%08X", (UINT32)(mips->cpr[1][27] >> 32), (UINT32)mips->cpr[1][27]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS27: sprintf(info->s, "FPS27:!%16g", *(float *)&mips->cpr[1][27]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD27: sprintf(info->s, "FPD27:!%16g", *(double *)&mips->cpr[1][27]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR28: sprintf(info->s, "FPR28:%08X%08X", (UINT32)(mips->cpr[1][28] >> 32), (UINT32)mips->cpr[1][28]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS28: sprintf(info->s, "FPS28:!%16g", *(float *)&mips->cpr[1][28]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD28: sprintf(info->s, "FPD28:!%16g", *(double *)&mips->cpr[1][28]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR29: sprintf(info->s, "FPR29:%08X%08X", (UINT32)(mips->cpr[1][29] >> 32), (UINT32)mips->cpr[1][29]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS29: sprintf(info->s, "FPS29:!%16g", *(float *)&mips->cpr[1][29]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD29: sprintf(info->s, "FPD29:!%16g", *(double *)&mips->cpr[1][29]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR30: sprintf(info->s, "FPR30:%08X%08X", (UINT32)(mips->cpr[1][30] >> 32), (UINT32)mips->cpr[1][30]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS30: sprintf(info->s, "FPS30:!%16g", *(float *)&mips->cpr[1][30]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD30: sprintf(info->s, "FPD30:!%16g", *(double *)&mips->cpr[1][30]); break; case CPUINFO_STR_REGISTER + MIPS3_FPR31: sprintf(info->s, "FPR31:%08X%08X", (UINT32)(mips->cpr[1][31] >> 32), (UINT32)mips->cpr[1][31]); break; case CPUINFO_STR_REGISTER + MIPS3_FPS31: sprintf(info->s, "FPS31:!%16g", *(float *)&mips->cpr[1][31]); break; case CPUINFO_STR_REGISTER + MIPS3_FPD31: sprintf(info->s, "FPD31:!%16g", *(double *)&mips->cpr[1][31]); break; } } /*************************************************************************** INTERNAL HELPERS ***************************************************************************/ /*------------------------------------------------- compare_int_callback - callback that fires whenever a compare interrupt is generated -------------------------------------------------*/ static TIMER_CALLBACK( compare_int_callback ) { legacy_cpu_device *device = (legacy_cpu_device *)ptr; device_set_input_line(device, MIPS3_IRQ5, ASSERT_LINE); } /*------------------------------------------------- compute_config_register - compute the value of the config register -------------------------------------------------*/ static UINT32 compute_config_register(const mips3_state *mips) { /* set the cache line size to 32 bytes */ UINT32 configreg = 0x00026030; int divisor; // NEC VR series does not use a 100% compatible COP0/TLB implementation if (mips->flavor == MIPS3_TYPE_VR4300) { /* For VR43xx, Config is as follows: bit 31 = always 0 bits 28-30 = EC bits 24-27 = EP bits 16-23 = always b0000010 bit 15 = endian indicator as standard MIPS III bits 4-14 = always b11001000110 bit 3 = CU bits 0-2 = K0 ("Coherency algorithm of kseg0") */ configreg = 0x6460; } else { /* set the data cache size */ if (mips->icache_size <= 0x01000) configreg |= 0 << 6; else if (mips->icache_size <= 0x02000) configreg |= 1 << 6; else if (mips->icache_size <= 0x04000) configreg |= 2 << 6; else if (mips->icache_size <= 0x08000) configreg |= 3 << 6; else if (mips->icache_size <= 0x10000) configreg |= 4 << 6; else if (mips->icache_size <= 0x20000) configreg |= 5 << 6; else if (mips->icache_size <= 0x40000) configreg |= 6 << 6; else configreg |= 7 << 6; /* set the instruction cache size */ if (mips->icache_size <= 0x01000) configreg |= 0 << 9; else if (mips->icache_size <= 0x02000) configreg |= 1 << 9; else if (mips->icache_size <= 0x04000) configreg |= 2 << 9; else if (mips->icache_size <= 0x08000) configreg |= 3 << 9; else if (mips->icache_size <= 0x10000) configreg |= 4 << 9; else if (mips->icache_size <= 0x20000) configreg |= 5 << 9; else if (mips->icache_size <= 0x40000) configreg |= 6 << 9; else configreg |= 7 << 9; /* set the system clock divider */ divisor = 2; if (mips->system_clock != 0) { divisor = mips->cpu_clock / mips->system_clock; if (mips->system_clock * divisor != mips->cpu_clock) { configreg |= 0x80000000; divisor = mips->cpu_clock * 2 / mips->system_clock; } } configreg |= (((divisor < 2) ? 2 : (divisor > 8) ? 8 : divisor) - 2) << 28; } /* set the endianness bit */ if (mips->bigendian) configreg |= 0x00008000; return configreg; } /*------------------------------------------------- compute_prid_register - compute the value of the PRId register -------------------------------------------------*/ static UINT32 compute_prid_register(const mips3_state *mips) { switch (mips->flavor) { case MIPS3_TYPE_VR4300: return 0x0b00; case MIPS3_TYPE_R4600: case MIPS3_TYPE_R4650: return 0x2000; case MIPS3_TYPE_R4700: return 0x2100; case MIPS3_TYPE_R5000: case MIPS3_TYPE_QED5271: return 0x2300; case MIPS3_TYPE_RM7000: return 0x2700; default: fatalerror("Unknown MIPS flavor specified"); } return 0x2000; } /*------------------------------------------------- tlb_map_entry - map a single TLB entry -------------------------------------------------*/ static void tlb_map_entry(mips3_state *mips, int tlbindex) { int current_asid = mips->cpr[0][COP0_EntryHi] & 0xff; mips3_tlb_entry *entry = &mips->tlb[tlbindex]; UINT32 count, vpn; int which; /* the ASID doesn't match the current ASID, and if the page isn't global, unmap it from the TLB */ if (!tlb_entry_matches_asid(entry, current_asid) && !tlb_entry_is_global(entry)) { vtlb_load(mips->vtlb, 2 * tlbindex + 0, 0, 0, 0); vtlb_load(mips->vtlb, 2 * tlbindex + 1, 0, 0, 0); return; } /* extract the VPN index; ignore if the virtual address is beyond 32 bits */ vpn = ((entry->entry_hi >> 13) & 0x07ffffff) << 1; if (vpn >= (1 << (MIPS3_MAX_PADDR_SHIFT - MIPS3_MIN_PAGE_SHIFT))) { vtlb_load(mips->vtlb, 2 * tlbindex + 0, 0, 0, 0); vtlb_load(mips->vtlb, 2 * tlbindex + 1, 0, 0, 0); return; } /* get the number of pages from the page mask */ count = ((entry->page_mask >> 13) & 0x00fff) + 1; /* loop over both the even and odd pages */ for (which = 0; which < 2; which++) { UINT32 effvpn = vpn + count * which; UINT64 lo = entry->entry_lo[which]; UINT32 pfn; UINT32 flags = 0; /* compute physical page index */ pfn = (lo >> 6) & mips->pfnmask; /* valid? */ if ((lo & 2) != 0) { flags |= VTLB_FLAG_VALID | VTLB_READ_ALLOWED | VTLB_FETCH_ALLOWED; /* writable? */ if ((lo & 4) != 0) flags |= VTLB_WRITE_ALLOWED; /* mirror the flags for user mode if the VPN is in user space */ if (effvpn < (0x80000000 >> MIPS3_MIN_PAGE_SHIFT)) flags |= (flags << 4) & (VTLB_USER_READ_ALLOWED | VTLB_USER_WRITE_ALLOWED | VTLB_USER_FETCH_ALLOWED); } /* load the virtual TLB with the corresponding entries */ if ((effvpn + count) <= (0x80000000 >> MIPS3_MIN_PAGE_SHIFT) || effvpn >= (0xc0000000 >> MIPS3_MIN_PAGE_SHIFT)) vtlb_load(mips->vtlb, 2 * tlbindex + which, count, effvpn << MIPS3_MIN_PAGE_SHIFT, (pfn << MIPS3_MIN_PAGE_SHIFT) | flags); else vtlb_load(mips->vtlb, 2 * tlbindex + which, 0, 0, 0); } } /*------------------------------------------------- tlb_write_common - common routine for writing a TLB entry -------------------------------------------------*/ static void tlb_write_common(mips3_state *mips, int tlbindex) { /* only handle entries within the TLB */ if (tlbindex < mips->tlbentries) { mips3_tlb_entry *entry = &mips->tlb[tlbindex]; /* fill in the new TLB entry from the COP0 registers */ entry->page_mask = mips->cpr[0][COP0_PageMask]; entry->entry_hi = mips->cpr[0][COP0_EntryHi] & ~(entry->page_mask & U64(0x0000000001ffe000)); entry->entry_lo[0] = mips->cpr[0][COP0_EntryLo0]; entry->entry_lo[1] = mips->cpr[0][COP0_EntryLo1]; /* remap this TLB entry */ tlb_map_entry(mips, tlbindex); /* log the two halves once they are in */ tlb_entry_log_half(entry, tlbindex, 0); tlb_entry_log_half(entry, tlbindex, 1); } } /*------------------------------------------------- tlb_entry_log_half - log half of a single TLB entry -------------------------------------------------*/ static void tlb_entry_log_half(mips3_tlb_entry *entry, int tlbindex, int which) { if (PRINTF_TLB) { UINT64 hi = entry->entry_hi; UINT64 lo = entry->entry_lo[which]; UINT32 vpn = (((hi >> 13) & 0x07ffffff) << 1); UINT32 asid = hi & 0xff; UINT32 r = (hi >> 62) & 3; UINT32 pfn = (lo >> 6) & 0x00ffffff; UINT32 c = (lo >> 3) & 7; UINT32 pagesize = (((entry->page_mask >> 13) & 0xfff) + 1) << MIPS3_MIN_PAGE_SHIFT; UINT64 vaddr = (UINT64)vpn * MIPS3_MIN_PAGE_SIZE; UINT64 paddr = (UINT64)pfn * MIPS3_MIN_PAGE_SIZE; vaddr += pagesize * which; printf("index=%08X pagesize=%08X vaddr=%08X%08X paddr=%08X%08X asid=%02X r=%X c=%X dvg=%c%c%c\n", tlbindex, pagesize, (UINT32)(vaddr >> 32), (UINT32)vaddr, (UINT32)(paddr >> 32), (UINT32)paddr, asid, r, c, (lo & 4) ? 'd' : '.', (lo & 2) ? 'v' : '.', (lo & 1) ? 'g' : '.'); } }