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GBA DMA: Enhanced logging (closes #2454)

This commit is contained in:
Vicki Pfau 2022-02-18 20:31:05 -08:00
parent a1945cb57a
commit cf06497456
3 changed files with 19 additions and 6 deletions
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1
CHANGES
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@ -44,6 +44,7 @@ Misc:
- Core: Suspend runloop when a core crashes
- GB Video: Add default SGB border
- GBA: Automatically skip BIOS if ROM has invalid logo
- GBA DMA: Enhanced logging (closes mgba.io/i/2454)
- mGUI: Add margin to right-aligned menu text (fixes mgba.io/i/871)
- Qt: Rearrange menus some
- Qt: Clean up cheats dialog

4
include/mgba/internal/gba/dma.h
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@ -10,6 +10,8 @@
CXX_GUARD_START
#include <mgba/core/log.h>
enum GBADMAControl {
GBA_DMA_INCREMENT = 0,
GBA_DMA_DECREMENT = 1,
@ -34,6 +36,8 @@ DECL_BITS(GBADMARegister, Timing, 12, 2);
DECL_BIT(GBADMARegister, DoIRQ, 14);
DECL_BIT(GBADMARegister, Enable, 15);
mLOG_DECLARE_CATEGORY(GBA_DMA);
struct GBADMA {
GBADMARegister reg;

20
src/gba/dma.c
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@ -8,6 +8,8 @@
#include <mgba/internal/gba/gba.h>
#include <mgba/internal/gba/io.h>
mLOG_DEFINE_CATEGORY(GBA_DMA, "GBA DMA", "gba.dma");
static void _dmaEvent(struct mTiming* timing, void* context, uint32_t cyclesLate);
static void GBADMAService(struct GBA* gba, int number, struct GBADMA* info);
@ -43,10 +45,10 @@ static bool _isValidDMADAD(int dma, uint32_t address) {
uint32_t GBADMAWriteSAD(struct GBA* gba, int dma, uint32_t address) {
struct GBAMemory* memory = &gba->memory;
address &= 0x0FFFFFFE;
if (_isValidDMASAD(dma, address)) {
memory->dma[dma].source = address;
memory->dma[dma].source = address & 0x0FFFFFFE;
} else {
mLOG(GBA_DMA, GAME_ERROR, "Invalid DMA source address: 0x%08X", address);
memory->dma[dma].source = 0;
}
return memory->dma[dma].source;
@ -57,6 +59,8 @@ uint32_t GBADMAWriteDAD(struct GBA* gba, int dma, uint32_t address) {
address &= 0x0FFFFFFE;
if (_isValidDMADAD(dma, address)) {
memory->dma[dma].dest = address;
} else {
mLOG(GBA_DMA, GAME_ERROR, "Invalid DMA destination address: 0x%08X", address);
}
return memory->dma[dma].dest;
}
@ -78,7 +82,7 @@ uint16_t GBADMAWriteCNT_HI(struct GBA* gba, int dma, uint16_t control) {
currentDma->reg = control;
if (GBADMARegisterIsDRQ(currentDma->reg)) {
mLOG(GBA_MEM, STUB, "DRQ not implemented");
mLOG(GBA_DMA, STUB, "DRQ not implemented");
}
if (!wasEnabled && GBADMARegisterIsEnable(currentDma->reg)) {
@ -87,11 +91,15 @@ uint16_t GBADMAWriteCNT_HI(struct GBA* gba, int dma, uint16_t control) {
uint32_t width = 2 << GBADMARegisterGetWidth(currentDma->reg);
if (currentDma->nextSource & (width - 1)) {
mLOG(GBA_MEM, GAME_ERROR, "Misaligned DMA source address: 0x%08X", currentDma->nextSource);
mLOG(GBA_DMA, GAME_ERROR, "Misaligned DMA source address: 0x%08X", currentDma->nextSource);
}
if (currentDma->nextDest & (width - 1)) {
mLOG(GBA_MEM, GAME_ERROR, "Misaligned DMA destination address: 0x%08X", currentDma->nextDest);
mLOG(GBA_DMA, GAME_ERROR, "Misaligned DMA destination address: 0x%08X", currentDma->nextDest);
}
mLOG(GBA_DMA, INFO, "Starting DMA %i 0x%08X -> 0x%08X (%04X:%04X)", dma,
currentDma->nextSource, currentDma->nextDest,
currentDma->reg, currentDma->count & 0xFFFF);
currentDma->nextSource &= -width;
currentDma->nextDest &= -width;
@ -114,7 +122,7 @@ void GBADMASchedule(struct GBA* gba, int number, struct GBADMA* info) {
case GBA_DMA_TIMING_CUSTOM:
switch (number) {
case 0:
mLOG(GBA_MEM, WARN, "Discarding invalid DMA0 scheduling");
mLOG(GBA_DMA, WARN, "Discarding invalid DMA0 scheduling");
return;
case 1:
case 2: