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Sonic CD shows Sega logo

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@18 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-01-13 21:57:26 +00:00
parent c459aefdad
commit cb4a513a96
6 changed files with 116 additions and 45 deletions
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23
Pico/cd/LC89510.c
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@ -65,15 +65,14 @@ void LC89510_Reset(void)
CDD_Reset();
CDC_Reset();
Pico_mcd->cdc.Host_Data = 0;
Pico_mcd->cdc.DMA_Adr = 0;
Pico_mcd->cdc.Stop_Watch = 0;
// clear DMA_Adr & Stop_Watch
memset(Pico_mcd->s68k_regs + 0xA, 0, 4);
}
void Update_CDC_TRansfer(int which)
{
unsigned int dep, length, len;
unsigned int DMA_Adr, dep, length, len;
unsigned short *dest;
unsigned char *src;
@ -101,17 +100,17 @@ void Update_CDC_TRansfer(int which)
// TODO: dst bounds checking? DAC.N alignment?
src = Pico_mcd->cdc.Buffer + Pico_mcd->cdc.DAC.N;
DMA_Adr = (Pico_mcd->s68k_regs[0xA]<<8) | Pico_mcd->s68k_regs[0xB];
if (which == 7) // WORD RAM
{
if (Pico_mcd->s68k_regs[3] & 4)
{
dep = ((Pico_mcd->cdc.DMA_Adr & 0x3FFF) << 3);
dep = ((DMA_Adr & 0x3FFF) << 3);
cdprintf("CD DMA # %04x -> word_ram1M # %06x, len=%i",
Pico_mcd->cdc.DAC.N, dep, length);
dep = ((Pico_mcd->cdc.DMA_Adr & 0x3FFF) << 4);
dep = ((DMA_Adr & 0x3FFF) << 4);
if (!(Pico_mcd->s68k_regs[3]&1)) dep += 2;
dest = (unsigned short *) (Pico_mcd->word_ram + dep);
@ -120,7 +119,7 @@ void Update_CDC_TRansfer(int which)
}
else
{
dep = ((Pico_mcd->cdc.DMA_Adr & 0x7FFF) << 3);
dep = ((DMA_Adr & 0x7FFF) << 3);
cdprintf("CD DMA # %04x -> word_ram2M # %06x, len=%i",
Pico_mcd->cdc.DAC.N, dep, length);
dest = (unsigned short *) (Pico_mcd->word_ram + dep);
@ -133,14 +132,14 @@ void Update_CDC_TRansfer(int which)
{
#if 0
dest = (unsigned char *) Ram_PCM;
dep = ((Pico_mcd->cdc.DMA_Adr & 0x03FF) << 2) + PCM_Chip.Bank;
dep = ((DMA_Adr & 0x03FF) << 2) + PCM_Chip.Bank;
#else
cdprintf("TODO: PCM Dma");
cdprintf("CD DMA # %04x -> PCD TODO", Pico_mcd->cdc.DAC.N);
#endif
}
else if (which == 5) // PRG RAM
{
dep = (Pico_mcd->cdc.DMA_Adr & 0xFFFF) << 3;
dep = DMA_Adr << 3;
dest = (unsigned short *) (Pico_mcd->prg_ram + dep);
cdprintf("CD DMA # %04x -> prg_ram # %06x, len=%i",
Pico_mcd->cdc.DAC.N, dep, length);
@ -425,7 +424,7 @@ void CDC_Write_Reg(unsigned char Data)
cdprintf("************** Starting Data Transfer ***********");
cdprintf("RS0 = %.4X DAC = %.4X DBC = %.4X DMA adr = %.4X\n\n", Pico_mcd->s68k_regs[4]<<8,
Pico_mcd->cdc.DAC.N, Pico_mcd->cdc.DBC.N, Pico_mcd->cdc.DMA_Adr);
Pico_mcd->cdc.DAC.N, Pico_mcd->cdc.DBC.N, (Pico_mcd->s68k_regs[0xA]<<8) | Pico_mcd->s68k_regs[0xB]);
}
break;