static void dsp32c_reset(void *param)
{
struct dsp32_config *config = param;
/* copy in config data */
if (config)
dsp32.output_pins_changed = config->output_pins_changed;
/* reset goes to 0 */
dsp32.PC = 0;
memory_set_opbase(dsp32.PC);
/* clear some registers */
dsp32.pcw &= 0x03ff;
update_pcr(dsp32.pcr & PCR_RESET);
dsp32.esr = 0;
dsp32.emr = 0xffff;
/* initialize fixed registers */
dsp32.R0 = dsp32.R0_ALT = 0;
dsp32.RMM = -1;
dsp32.RPP = 1;
dsp32.A_0 = 0.0;
dsp32.A_1 = 1.0;
/* init internal stuff */
dsp32.abufcycle[0] = dsp32.abufcycle[1] = dsp32.abufcycle[2] = dsp32.abufcycle[3] = 12345678;
dsp32.mbufaddr[0] = dsp32.mbufaddr[1] = dsp32.mbufaddr[2] = dsp32.mbufaddr[3] = 1;
}
void dsp32c_device::state_import(const device_state_entry &entry)
{
switch (entry.index())
{
case STATE_GENFLAGS:
break;
case DSP32_PCR:
update_pcr(m_iotemp);
break;
default:
fatalerror("dsp32c_device::state_import called for unexpected value\n");
}
}
void dsp32c_device::dma_load()
{
// only process if DMA is enabled
if (m_pcr & PCR_DMA)
{
UINT32 addr = m_par | (m_pare << 16);
// 16-bit case
if (!(m_pcr & PCR_DMA32))
m_pdr = RWORD(addr & 0xfffffe);
// 32-bit case
else
{
UINT32 temp = RLONG(addr & 0xfffffc);
m_pdr = temp >> 16;
m_pdr2 = temp & 0xffff;
}
// set the PDF flag to indicate we have data ready
update_pcr(m_pcr | PCR_PDFs);
}
INLINE void dma_load(void)
{
/* only process if DMA is enabled */
if (dsp32.pcr & PCR_DMA)
{
UINT32 addr = dsp32.par | (dsp32.pare << 16);
/* 16-bit case */
if (!(dsp32.pcr & PCR_DMA32))
dsp32.pdr = RWORD(addr & 0xfffffe);
/* 32-bit case */
else
{
UINT32 temp = RLONG(addr & 0xfffffc);
dsp32.pdr = temp >> 16;
dsp32.pdr2 = temp & 0xffff;
}
/* set the PDF flag to indicate we have data ready */
update_pcr(dsp32.pcr | PCR_PDFs);
}
INLINE void dma_load(dsp32_state *cpustate)
{
/* only process if DMA is enabled */
if (cpustate->pcr & PCR_DMA)
{
UINT32 addr = cpustate->par | (cpustate->pare << 16);
/* 16-bit case */
if (!(cpustate->pcr & PCR_DMA32))
cpustate->pdr = RWORD(cpustate, addr & 0xfffffe);
/* 32-bit case */
else
{
UINT32 temp = RLONG(cpustate, addr & 0xfffffc);
cpustate->pdr = temp >> 16;
cpustate->pdr2 = temp & 0xffff;
}
/* set the PDF flag to indicate we have data ready */
update_pcr(cpustate, cpustate->pcr | PCR_PDFs);
}
static CPU_RESET( dsp32c )
{
dsp32_state *cpustate = get_safe_token(device);
/* reset goes to 0 */
cpustate->PC = 0;
/* clear some registers */
cpustate->pcw &= 0x03ff;
update_pcr(cpustate, cpustate->pcr & PCR_RESET);
cpustate->esr = 0;
cpustate->emr = 0xffff;
/* initialize fixed registers */
cpustate->R0 = cpustate->R0_ALT = 0;
cpustate->RMM = -1;
cpustate->RPP = 1;
cpustate->A_0 = 0.0;
cpustate->A_1 = 1.0;
/* init internal stuff */
cpustate->abufcycle[0] = cpustate->abufcycle[1] = cpustate->abufcycle[2] = cpustate->abufcycle[3] = 12345678;
cpustate->mbufaddr[0] = cpustate->mbufaddr[1] = cpustate->mbufaddr[2] = cpustate->mbufaddr[3] = 1;
}
