/**
* Shut down the DSP emulation
*/
void DSP_UnInit(void)
{
#if ENABLE_DSP_EMU
if (!bDspEnabled)
return;
dsp_core_shutdown();
bDspEnabled = false;
#endif
}
/* Reset */
void dsp_core_reset(void)
{
int i;
LOG_TRACE(TRACE_DSP_STATE, "Dsp: core reset\n");
dsp_core_shutdown();
/* Memory */
memset((void*)dsp_core.periph, 0, sizeof(dsp_core.periph));
memset(dsp_core.stack, 0, sizeof(dsp_core.stack));
memset(dsp_core.registers, 0, sizeof(dsp_core.registers));
dsp_core.dsp_host_rtx = 0;
dsp_core.dsp_host_htx = 0;
dsp_core.bootstrap_pos = 0;
/* Registers */
dsp_core.pc = 0x0000;
dsp_core.registers[DSP_REG_OMR]=0x02;
for (i=0;i<8;i++) {
dsp_core.registers[DSP_REG_M0+i]=0x00ffff;
}
/* Interruptions */
memset((void*)dsp_core.interrupt_isPending, 0, sizeof(dsp_core.interrupt_isPending));
dsp_core.interrupt_state = DSP_INTERRUPT_NONE;
dsp_core.interrupt_instr_fetch = -1;
dsp_core.interrupt_save_pc = -1;
dsp_core.interrupt_counter = 0;
dsp_core.interrupt_pipeline_count = 0;
for (i=0;i<5;i++) {
dsp_core.interrupt_ipl[i] = 3;
}
for (i=5;i<12;i++) {
dsp_core.interrupt_ipl[i] = -1;
}
/* host port init, dsp side */
dsp_core.periph[DSP_SPACE_X][DSP_HOST_HSR]=(1<<DSP_HOST_HSR_HTDE);
/* host port init, cpu side */
dsp_core.hostport[CPU_HOST_ICR] = 0x0;
dsp_core.hostport[CPU_HOST_CVR] = 0x12;
dsp_core.hostport[CPU_HOST_ISR] = (1<<CPU_HOST_ISR_TRDY)|(1<<CPU_HOST_ISR_TXDE);
dsp_core.hostport[CPU_HOST_IVR] = 0x0f;
dsp_core.hostport[CPU_HOST_RX0] = 0x0;
/* SSI registers */
dsp_core.periph[DSP_SPACE_X][DSP_SSI_SR]=1<<DSP_SSI_SR_TDE;
dsp_core.ssi.waitFrameTX = 1;
dsp_core.ssi.waitFrameRX = 1;
dsp_core.ssi.TX = 0;
dsp_core.ssi.RX = 0;
dsp_core.ssi.dspPlay_handshakeMode_frame = 0;
dsp_core_ssi_configure(DSP_SSI_CRA, 0);
dsp_core_ssi_configure(DSP_SSI_CRB, 0);
/* Other hardware registers */
dsp_core.periph[DSP_SPACE_X][DSP_IPR]=0;
dsp_core.periph[DSP_SPACE_X][DSP_BCR]=0xffff;
/* Misc */
dsp_core.loop_rep = 0;
LOG_TRACE(TRACE_DSP_STATE, "Dsp: reset done\n");
dsp56k_init_cpu();
}
