static void update_pcr(dsp32_state *cpustate, UINT16 newval)
{
UINT16 oldval = cpustate->pcr;
cpustate->pcr = newval;
/* reset the chip if we get a reset */
if ((oldval & PCR_RESET) == 0 && (newval & PCR_RESET) != 0)
CPU_RESET_NAME(dsp32c)(cpustate->device);
/* track the state of the output pins */
if (cpustate->output_pins_changed)
{
UINT16 newoutput = ((newval & (PCR_PIFs | PCR_ENI)) == (PCR_PIFs | PCR_ENI)) ? DSP32_OUTPUT_PIF : 0;
if (newoutput != cpustate->lastpins)
{
cpustate->lastpins = newoutput;
(*cpustate->output_pins_changed)(cpustate->device, newoutput);
}
}
}
static CPU_GET_INFO( nec )
{
nec_state_t *nec_state = (device != NULL && device->token() != NULL) ? get_safe_token(device) : NULL;
int flags;
switch (state)
{
/* --- the following bits of info are returned as 64-bit signed integers --- */
case CPUINFO_INT_CONTEXT_SIZE: info->i = sizeof(nec_state_t); break;
case CPUINFO_INT_INPUT_LINES: info->i = 1; break;
case CPUINFO_INT_DEFAULT_IRQ_VECTOR: info->i = 0xff; break;
case CPUINFO_INT_ENDIANNESS: info->i = 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 = 1; break;
case CPUINFO_INT_MAX_INSTRUCTION_BYTES: info->i = 8; break;
case CPUINFO_INT_MIN_CYCLES: info->i = 1; break;
case CPUINFO_INT_MAX_CYCLES: info->i = 80; break;
case CPUINFO_INT_DATABUS_WIDTH + AS_PROGRAM: info->i = 16; break;
case CPUINFO_INT_ADDRBUS_WIDTH + AS_PROGRAM: info->i = 20; break;
case CPUINFO_INT_ADDRBUS_SHIFT + AS_PROGRAM: info->i = 0; break;
case CPUINFO_INT_DATABUS_WIDTH + AS_DATA: info->i = 0; break;
case CPUINFO_INT_ADDRBUS_WIDTH + AS_DATA: info->i = 0; break;
case CPUINFO_INT_ADDRBUS_SHIFT + AS_DATA: info->i = 0; break;
case CPUINFO_INT_DATABUS_WIDTH + AS_IO: info->i = 16; break;
case CPUINFO_INT_ADDRBUS_WIDTH + AS_IO: info->i = 16; break;
case CPUINFO_INT_ADDRBUS_SHIFT + AS_IO: info->i = 0; break;
case CPUINFO_INT_INPUT_STATE + 0: info->i = (nec_state->pending_irq & INT_IRQ) ? ASSERT_LINE : CLEAR_LINE; break;
case CPUINFO_INT_INPUT_STATE + INPUT_LINE_NMI: info->i = nec_state->nmi_state; break;
case CPUINFO_INT_INPUT_STATE + NEC_INPUT_LINE_POLL: info->i = nec_state->poll_state; break;
case CPUINFO_INT_PREVIOUSPC: /* not supported */ break;
case CPUINFO_INT_PC:
case CPUINFO_INT_REGISTER + NEC_PC: info->i = ((Sreg(PS)<<4) + nec_state->ip); break;
case CPUINFO_INT_REGISTER + NEC_IP: info->i = nec_state->ip; break;
case CPUINFO_INT_SP: info->i = (Sreg(SS)<<4) + Wreg(SP); break;
case CPUINFO_INT_REGISTER + NEC_SP: info->i = Wreg(SP); break;
case CPUINFO_INT_REGISTER + NEC_FLAGS: info->i = CompressFlags(); break;
case CPUINFO_INT_REGISTER + NEC_AW: info->i = Wreg(AW); break;
case CPUINFO_INT_REGISTER + NEC_CW: info->i = Wreg(CW); break;
case CPUINFO_INT_REGISTER + NEC_DW: info->i = Wreg(DW); break;
case CPUINFO_INT_REGISTER + NEC_BW: info->i = Wreg(BW); break;
case CPUINFO_INT_REGISTER + NEC_BP: info->i = Wreg(BP); break;
case CPUINFO_INT_REGISTER + NEC_IX: info->i = Wreg(IX); break;
case CPUINFO_INT_REGISTER + NEC_IY: info->i = Wreg(IY); break;
case CPUINFO_INT_REGISTER + NEC_ES: info->i = Sreg(DS1); break;
case CPUINFO_INT_REGISTER + NEC_CS: info->i = Sreg(PS); break;
case CPUINFO_INT_REGISTER + NEC_SS: info->i = Sreg(SS); break;
case CPUINFO_INT_REGISTER + NEC_DS: info->i = Sreg(DS0); break;
case CPUINFO_INT_REGISTER + NEC_PENDING: info->i = nec_state->pending_irq; break;
/* --- the following bits of info are returned as pointers to data or functions --- */
case CPUINFO_FCT_SET_INFO: info->setinfo = CPU_SET_INFO_NAME(nec); break;
case CPUINFO_FCT_INIT: /* set per-CPU */ break;
case CPUINFO_FCT_RESET: info->reset = CPU_RESET_NAME(nec); break;
case CPUINFO_FCT_EXIT: info->exit = CPU_EXIT_NAME(nec); break;
case CPUINFO_FCT_EXECUTE: info->execute = CPU_EXECUTE_NAME(necv); break;
case CPUINFO_FCT_BURN: info->burn = NULL; break;
case CPUINFO_FCT_DISASSEMBLE: info->disassemble = CPU_DISASSEMBLE_NAME(nec); break;
case CPUINFO_PTR_INSTRUCTION_COUNTER: info->icount = &nec_state->icount; break;
/* --- the following bits of info are returned as NULL-terminated strings --- */
case CPUINFO_STR_NAME: strcpy(info->s, "NEC"); break;
case CPUINFO_STR_FAMILY: strcpy(info->s, "NEC V-Series"); break;
case CPUINFO_STR_VERSION: strcpy(info->s, "2.0"); break;
case CPUINFO_STR_SOURCE_FILE: strcpy(info->s, __FILE__); break;
case CPUINFO_STR_CREDITS: strcpy(info->s, "Bryan McPhail (V25/V35 support added by Alex W. Jackson)"); break;
case CPUINFO_STR_FLAGS:
flags = CompressFlags();
sprintf(info->s, "%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c",
flags & 0x8000 ? 'N':'E',
flags & 0x4000 ? '?':'.',
flags & 0x2000 ? '?':'.',
flags & 0x1000 ? '?':'.',
flags & 0x0800 ? 'O':'.',
flags & 0x0400 ? 'D':'.',
flags & 0x0200 ? 'I':'.',
flags & 0x0100 ? 'T':'.',
flags & 0x0080 ? 'S':'.',
flags & 0x0040 ? 'Z':'.',
flags & 0x0020 ? '?':'.',
flags & 0x0010 ? 'A':'.',
flags & 0x0008 ? '?':'.',
flags & 0x0004 ? 'P':'.',
flags & 0x0002 ? '.':'?',
flags & 0x0001 ? 'C':'.');
break;
case CPUINFO_STR_REGISTER + NEC_PC: sprintf(info->s, "PC:%05X", (Sreg(PS)<<4) + nec_state->ip); break;
case CPUINFO_STR_REGISTER + NEC_IP: sprintf(info->s, "IP:%04X", nec_state->ip); break;
case CPUINFO_STR_REGISTER + NEC_SP: sprintf(info->s, "SP:%04X", Wreg(SP)); break;
case CPUINFO_STR_REGISTER + NEC_FLAGS: sprintf(info->s, "F:%04X", CompressFlags()); break;
case CPUINFO_STR_REGISTER + NEC_AW: sprintf(info->s, "AW:%04X", Wreg(AW)); break;
case CPUINFO_STR_REGISTER + NEC_CW: sprintf(info->s, "CW:%04X", Wreg(CW)); break;
case CPUINFO_STR_REGISTER + NEC_DW: sprintf(info->s, "DW:%04X", Wreg(DW)); break;
case CPUINFO_STR_REGISTER + NEC_BW: sprintf(info->s, "BW:%04X", Wreg(BW)); break;
case CPUINFO_STR_REGISTER + NEC_BP: sprintf(info->s, "BP:%04X", Wreg(BP)); break;
case CPUINFO_STR_REGISTER + NEC_IX: sprintf(info->s, "IX:%04X", Wreg(IX)); break;
case CPUINFO_STR_REGISTER + NEC_IY: sprintf(info->s, "IY:%04X", Wreg(IY)); break;
case CPUINFO_STR_REGISTER + NEC_ES: sprintf(info->s, "DS1:%04X", Sreg(DS1)); break;
case CPUINFO_STR_REGISTER + NEC_CS: sprintf(info->s, "PS:%04X", Sreg(PS)); break;
case CPUINFO_STR_REGISTER + NEC_SS: sprintf(info->s, "SS:%04X", Sreg(SS)); break;
case CPUINFO_STR_REGISTER + NEC_DS: sprintf(info->s, "DS0:%04X", Sreg(DS0)); break;
}
}
