diff options
Diffstat (limited to 'trunk/src/emu/cpu/mips/mips3com.c')
-rw-r--r-- | trunk/src/emu/cpu/mips/mips3com.c | 986 |
1 files changed, 986 insertions, 0 deletions
diff --git a/trunk/src/emu/cpu/mips/mips3com.c b/trunk/src/emu/cpu/mips/mips3com.c new file mode 100644 index 00000000000..42a8c682ca3 --- /dev/null +++ b/trunk/src/emu/cpu/mips/mips3com.c @@ -0,0 +1,986 @@ +/*************************************************************************** + + 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_acknowledge_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' : '.'); +} +} |