/**
* @brief Main program entry point
* @return Will never return
* @note This routine contains the overall program flow, including initial
* setup of all components and the main program loop.
*/
int main(void)
{
SetupHardware();
iap_init();
#ifdef WITH_USB
xprintf("\nLet's see some usb stuff");
int i;
// initially expect USB connection
for (i = 0; ; i++) {
#if !defined(USB_DEVICE_ROM_DRIVER)
MS_Device_USBTask(&Disk_MS_Interface);
USB_USBTask(Disk_MS_Interface.Config.PortNumber, USB_MODE_Device);
#endif
//if (i > 350000 && !USBConnected) break;
if (i > 600000 && !USBConnected) break;
}
#endif
// if USB is unplugged, serve the vectrex bus
PrepareLoader(DataRam_GetScratchRAM());
xprintf("\nLOADER.BIN ROMBase=%x\n", ROMBase);
void *loader = ROMBase;
SelectROM(DataRam_GetScratchRAM(), 1);
xprintf("1 ROMBase=%x\nServing...", ROMBase);
ROMBase = loader;
NVIC_DisableIRQ(UART0_IRQn);
UART0_UnInit();
VectrexBusInit();
//SelectROM(DataRam_GetScratchRAM(), 1); -- this works
int romIndex = VectrexBusSlave();
//VectrexBusHold();
SelectROM(DataRam_GetScratchRAM(), romIndex);
//VectrexBusUnhold();
//VectrexNMI();
for(;;)
VectrexBusSlave();
}
int __fastcall _clio_Poke(unsigned int addr, unsigned int val)
{
int base;
int i;
//if(addr==0x200 || addr==0x204 || addr==0x208 || addr==0x20c || (addr>=0x100 && addr<=0x17c) || addr==0x220)io_interface(EXT_DEBUG_PRINT,(void*)str.print("CLIO Write[0x%X] = 0x%8.8X",addr,val).CStr());
//if(addr==0x34 || addr==0x30)io_interface(EXT_DEBUG_PRINT,(void*)str.print("CLIO Write[0x%X] = 0x%8.8X",addr,val).CStr());
if( (addr& ~0x2C) == 0x40 ) // 0x40..0x4C, 0x60..0x6C case
{
if(addr==0x40)
{
cregs[0x40]|=val;
if(cregs[0x60]) cregs[0x40]|=0x80000000;
//if(cregs[0x40]&cregs[0x48]) _arm_SetFIQ();
return 0;
}
else if(addr==0x44)
{
cregs[0x40]&=~val;
if(!cregs[0x60]) cregs[0x40]&=~0x80000000;
return 0;
}
else if(addr==0x48)
{
cregs[0x48]|=val;
//if(cregs[0x40]&cregs[0x48]) _arm_SetFIQ();
return 0;
}
else if(addr==0x4c)
{
cregs[0x48]&=~val;
cregs[0x48]|=0x80000000; // always one for irq31
return 0;
}
/*else if(addr==0x50)
{
cregs[0x50]|=val&0x3fff0000;
return 0;
}
else if(addr==0x54)
{
cregs[0x50]&=~val;
return 0;
} */
else if(addr==0x60)
{
cregs[0x60]|=val;
if(cregs[0x60]) cregs[0x40]|=0x80000000;
//if(cregs[0x60]&cregs[0x68]) _arm_SetFIQ();
return 0;
}
else if(addr==0x64)
{
cregs[0x60]&=~val;
if(!cregs[0x60]) cregs[0x40]&=~0x80000000;
return 0;
}
else if(addr==0x68)
{
cregs[0x68]|=val;
//if(cregs[0x60]&cregs[0x68]) _arm_SetFIQ();
return 0;
}
else if(addr==0x6c)
{
cregs[0x68]&=~val;
return 0;
}
}
else if(addr==0x84)
{
//temp=val&0xf0;
//temp=temp>>4;
//val&=0x0f;
//cregs[0x84]&=~temp;
//cregs[0x84]|=val;
cregs[0x84]=val&0xf;
SelectROM((val&4)? 1:0 );
return 0;
}else if(addr==0x300)
{ //clear down the fifos and stop them
base=0;
cregs[0x304]&=~val;
for(i=0;i<13;i++)
{
if(val&(1<<i))
{
base=0x400+(i<<4);
RLDADR=CURADR=0;
RLDLEN=CURLEN=0;
_clio_SetFIFO(base,0);
_clio_SetFIFO(base+4,0);
_clio_SetFIFO(base+8,0);
_clio_SetFIFO(base+0xc,0);
val&=~(1<<i);
PTRI[i]=0;
}
}
{
for(i=0;i<4;i++)
{
if(val&(1<<(i+16)))
{
base=0x500+(i<<4);
RLDADR=CURADR=0;
RLDLEN=CURLEN=0;
_clio_SetFIFO(base,0);
_clio_SetFIFO(base+4,0);
_clio_SetFIFO(base+8,0);
_clio_SetFIFO(base+0xc,0);
val&=~(1<<(i+16));
PTRO[i]=0;
}
}
}
return 0;
}
else if(addr==0x304) // Dma Starter!!!!! P/A !!!! need to create Handler.
{
//if(val&0x00100000)
//{
HandleDMA(val);
// cregs[0x304]&=~0x00100000;
//}
return 0;
}
else if(addr==0x308) //Dma Stopper!!!!
{
cregs[0x304]&=~val;
return 0;
}
else if(addr==0x400) //XBUS direction
{
if(val&0x800)
return 0;
else
{
cregs[0x400]=val;
return 0;
}
}
else if((addr>=0x500) && (addr<0x540))
{
_xbus_SetSEL(val);
return 0;
}
else if((addr>=0x540) && (addr<0x580))
{
#ifdef DBGXBUS
sprintf(str,"XBPC : 0x%8.8x :",RegRead(15));
CDebug::DPrint(str);
#endif
_xbus_SetPoll(val);
return 0;
}
else if((addr>=0x580) && (addr<0x5c0))
{
_xbus_SetCommandFIFO(val); // on FIFO Filled execute the command
return 0;
}
else if((addr>=0x5c0) && (addr<0x600))
{
_xbus_SetDataFIFO(val); // on FIFO Filled execute the command
return 0;
}
else if(addr==0x28)
{
cregs[addr]=val;
if(val==0x30)
return 1;
else
return 0;
}else if((addr>=0x1800)&&(addr<=0x1fff))//0x0340 1800 … 0x0340 1BFF && 0x0340 1C00 … 0x0340 1FFF
{
addr&=~0x400; //mirrors
DSPW1=val>>16;
DSPW2=val&0xffff;
DSPA=(addr-0x1800)>>1;
//sprintf(str,"0x%8.8X : 2x1NWRITE 0x%3.3X 0x%4.4X\n",GetPC(),DSPA,DSPW1);
//CDebug::DPrint(str);
//sprintf(str,"0x%8.8X : 2x2NWRITE 0x%3.3X 0x%4.4X\n",GetPC(),DSPA+1,DSPW2);
//CDebug::DPrint(str);
_dsp_WriteMemory(DSPA,DSPW1);
_dsp_WriteMemory(DSPA+1,DSPW2);
return 0;
//DSPNRAMWrite 2 DSPW per 1ARMW
}else if((addr>=0x2000)&&(addr<=0x2fff))