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DMA support!

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This commit is contained in:
StapleButter
2017-01-18 01:33:06 +01:00
parent b10a0d64a2
commit 9808b73c6f
7 changed files with 324 additions and 35 deletions
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90
NDS.cpp
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@ -21,6 +21,7 @@
#include "NDS.h"
#include "ARM.h"
#include "CP15.h"
#include "DMA.h"
#include "FIFO.h"
#include "GPU2D.h"
#include "SPI.h"
@ -79,6 +80,9 @@ u16 PowerControl7;
Timer Timers[8];
DMA* DMAs[8];
u32 DMA9Fill[4];
u16 IPCSync9, IPCSync7;
u16 IPCFIFOCnt9, IPCFIFOCnt7;
FIFO* IPCFIFO9; // FIFO in which the ARM9 writes
@ -102,6 +106,15 @@ void Init()
ARM9 = new ARM(0);
ARM7 = new ARM(1);
DMAs[0] = new DMA(0, 0);
DMAs[1] = new DMA(0, 1);
DMAs[2] = new DMA(0, 2);
DMAs[3] = new DMA(0, 3);
DMAs[4] = new DMA(1, 0);
DMAs[5] = new DMA(1, 1);
DMAs[6] = new DMA(1, 2);
DMAs[7] = new DMA(1, 3);
IPCFIFO9 = new FIFO(16);
IPCFIFO7 = new FIFO(16);
@ -156,6 +169,7 @@ void LoadROM()
void Reset()
{
FILE* f;
u32 i;
f = fopen("bios9.bin", "rb");
if (!f)
@ -216,6 +230,9 @@ void Reset()
memset(Timers, 0, 8*sizeof(Timer));
for (i = 0; i < 8; i++) DMAs[i]->Reset();
memset(DMA9Fill, 0, 4*4);
GPU2D::Reset();
SPI::Reset();
Wifi::Reset();
@ -991,7 +1008,7 @@ u8 ARM7Read8(u32 addr)
return 0;
}
printf("unknown arm7 read8 %08X\n", addr);
printf("unknown arm7 read8 %08X %08X %08X/%08X\n", addr, ARM7->R[15], ARM7->R[0], ARM7->R[1]);
return 0;
}
@ -1229,6 +1246,15 @@ u16 ARM9IORead16(u32 addr)
case 0x04000004: return GPU2D::DispStat[0];
case 0x04000006: return GPU2D::VCount;
case 0x040000E0: return ((u16*)DMA9Fill)[0];
case 0x040000E2: return ((u16*)DMA9Fill)[1];
case 0x040000E4: return ((u16*)DMA9Fill)[2];
case 0x040000E6: return ((u16*)DMA9Fill)[3];
case 0x040000E8: return ((u16*)DMA9Fill)[4];
case 0x040000EA: return ((u16*)DMA9Fill)[5];
case 0x040000EC: return ((u16*)DMA9Fill)[6];
case 0x040000EE: return ((u16*)DMA9Fill)[7];
case 0x04000100: return Timers[0].Counter;
case 0x04000102: return Timers[0].Control;
case 0x04000104: return Timers[1].Counter;
@ -1268,6 +1294,24 @@ u32 ARM9IORead32(u32 addr)
{
case 0x04000004: return GPU2D::DispStat[0] | (GPU2D::VCount << 16);
case 0x040000B0: return DMAs[0]->SrcAddr;
case 0x040000B4: return DMAs[0]->DstAddr;
case 0x040000B8: return DMAs[0]->Cnt;
case 0x040000BC: return DMAs[1]->SrcAddr;
case 0x040000C0: return DMAs[1]->DstAddr;
case 0x040000C4: return DMAs[1]->Cnt;
case 0x040000C8: return DMAs[2]->SrcAddr;
case 0x040000CC: return DMAs[2]->DstAddr;
case 0x040000D0: return DMAs[2]->Cnt;
case 0x040000D4: return DMAs[3]->SrcAddr;
case 0x040000D8: return DMAs[3]->DstAddr;
case 0x040000DC: return DMAs[3]->Cnt;
case 0x040000E0: return DMA9Fill[0];
case 0x040000E4: return DMA9Fill[1];
case 0x040000E8: return DMA9Fill[2];
case 0x040000EC: return DMA9Fill[3];
case 0x04000100: return Timers[0].Counter | (Timers[0].Control << 16);
case 0x04000104: return Timers[1].Counter | (Timers[1].Control << 16);
case 0x04000108: return Timers[2].Counter | (Timers[2].Control << 16);
@ -1409,6 +1453,24 @@ void ARM9IOWrite32(u32 addr, u32 val)
{
switch (addr)
{
case 0x040000B0: DMAs[0]->SrcAddr = val; return;
case 0x040000B4: DMAs[0]->DstAddr = val; return;
case 0x040000B8: DMAs[0]->WriteCnt(val); return;
case 0x040000BC: DMAs[1]->SrcAddr = val; return;
case 0x040000C0: DMAs[1]->DstAddr = val; return;
case 0x040000C4: DMAs[1]->WriteCnt(val); return;
case 0x040000C8: DMAs[2]->SrcAddr = val; return;
case 0x040000CC: DMAs[2]->DstAddr = val; return;
case 0x040000D0: DMAs[2]->WriteCnt(val); return;
case 0x040000D4: DMAs[3]->SrcAddr = val; return;
case 0x040000D8: DMAs[3]->DstAddr = val; return;
case 0x040000DC: DMAs[3]->WriteCnt(val); return;
case 0x040000E0: DMA9Fill[0] = val; return;
case 0x040000E4: DMA9Fill[1] = val; return;
case 0x040000E8: DMA9Fill[2] = val; return;
case 0x040000EC: DMA9Fill[3] = val; return;
case 0x04000100:
Timers[0].Reload = val & 0xFFFF;
TimerStart(0, val>>16);
@ -1561,6 +1623,19 @@ u32 ARM7IORead32(u32 addr)
{
case 0x04000004: return GPU2D::DispStat[1] | (GPU2D::VCount << 16);
case 0x040000B0: return DMAs[4]->SrcAddr;
case 0x040000B4: return DMAs[4]->DstAddr;
case 0x040000B8: return DMAs[4]->Cnt;
case 0x040000BC: return DMAs[5]->SrcAddr;
case 0x040000C0: return DMAs[5]->DstAddr;
case 0x040000C4: return DMAs[5]->Cnt;
case 0x040000C8: return DMAs[6]->SrcAddr;
case 0x040000CC: return DMAs[6]->DstAddr;
case 0x040000D0: return DMAs[6]->Cnt;
case 0x040000D4: return DMAs[7]->SrcAddr;
case 0x040000D8: return DMAs[7]->DstAddr;
case 0x040000DC: return DMAs[7]->Cnt;
case 0x04000100: return Timers[4].Counter | (Timers[4].Control << 16);
case 0x04000104: return Timers[5].Counter | (Timers[5].Control << 16);
case 0x04000108: return Timers[6].Counter | (Timers[6].Control << 16);
@ -1713,6 +1788,19 @@ void ARM7IOWrite32(u32 addr, u32 val)
{
switch (addr)
{
case 0x040000B0: DMAs[4]->SrcAddr = val; return;
case 0x040000B4: DMAs[4]->DstAddr = val; return;
case 0x040000B8: DMAs[4]->WriteCnt(val); return;
case 0x040000BC: DMAs[5]->SrcAddr = val; return;
case 0x040000C0: DMAs[5]->DstAddr = val; return;
case 0x040000C4: DMAs[5]->WriteCnt(val); return;
case 0x040000C8: DMAs[6]->SrcAddr = val; return;
case 0x040000CC: DMAs[6]->DstAddr = val; return;
case 0x040000D0: DMAs[6]->WriteCnt(val); return;
case 0x040000D4: DMAs[7]->SrcAddr = val; return;
case 0x040000D8: DMAs[7]->DstAddr = val; return;
case 0x040000DC: DMAs[7]->WriteCnt(val); return;
case 0x04000100:
Timers[4].Reload = val & 0xFFFF;
TimerStart(4, val>>16);