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/* Pcsx - Pc Psx Emulator
* Copyright (C) 1999-2002 Pcsx Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "PsxCommon.h"
// Dma0/1 in Mdec.c
// Dma3 in CdRom.c
void psxDma4(u32 madr, u32 bcr, u32 chcr) { // SPU
switch (chcr) {
case 0x01000201: //cpu to spu transfer
#ifdef PSXDMA_LOG
PSXDMA_LOG("*** DMA 4 - SPU mem2spu *** %lx addr = %lx size = %lx\n", chcr, madr, bcr);
#endif
SPU_writeDMAMem((u16 *)PSXM(madr), (bcr >> 16) * (bcr & 0xffff) * 2);
break;
case 0x01000200: //spu to cpu transfer
#ifdef PSXDMA_LOG
PSXDMA_LOG("*** DMA 4 - SPU spu2mem *** %lx addr = %lx size = %lx\n", chcr, madr, bcr);
#endif
SPU_readDMAMem ((u16 *)PSXM(madr), (bcr >> 16) * (bcr & 0xffff) * 2);
break;
#ifdef PSXDMA_LOG
default:
PSXDMA_LOG("*** DMA 4 - SPU unknown *** %lx addr = %lx size = %lx\n", chcr, madr, bcr);
break;
#endif
}
}
void psxDma2(u32 madr, u32 bcr, u32 chcr) { // GPU
switch(chcr) {
case 0x01000200: // vram2mem
#ifdef PSXDMA_LOG
PSXDMA_LOG("*** DMA 2 - GPU vram2mem *** %lx addr = %lx size = %lx\n", chcr, madr, bcr);
#endif
GPU_readDataMem((u32 *)PSXM(madr), (bcr >> 16) * (bcr & 0xffff));
psxCpu->Clear(madr, ((bcr >> 16) * (bcr & 0xffff)) / 4);
break;
case 0x01000201: // mem2vram
#ifdef PSXDMA_LOG
PSXDMA_LOG("*** DMA 2 - GPU mem2vram *** %lx addr = %lx size = %lx\n", chcr, madr, bcr);
#endif
GPU_writeDataMem((u32 *)PSXM(madr), (bcr >> 16) * (bcr & 0xffff));
break;
case 0x01000401: // dma chain
#ifdef PSXDMA_LOG
PSXDMA_LOG("*** DMA 2 - GPU dma chain *** %lx addr = %lx size = %lx\n", chcr, madr, bcr);
#endif
GPU_dmaChain((u32 *)psxM, madr & 0x1fffff);
break;
#ifdef PSXDMA_LOG
default:
PSXDMA_LOG("*** DMA 2 - GPU unknown *** %lx addr = %lx size = %lx\n", chcr, madr, bcr);
break;
#endif
}
}
void psxDma6(u32 madr, u32 bcr, u32 chcr) {
u32 *mem = (u32 *)PSXM(madr);
#ifdef PSXDMA_LOG
PSXDMA_LOG("*** DMA 6 - OT *** %lx addr = %lx size = %lx\n", chcr, madr, bcr);
#endif
if (chcr == 0x11000002) {
while (bcr--) {
*mem-- = (madr - 4) & 0xffffff;
madr -= 4;
}
mem++; *mem = 0xffffff;
} else {
// Unknown option
#ifdef PSXDMA_LOG
PSXDMA_LOG("*** DMA 6 - OT unknown *** %lx addr = %lx size = %lx\n", chcr, madr, bcr);
#endif
}
}
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