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#ifndef GUARD_GBA_MACRO_H
#define GUARD_GBA_MACRO_H
#define CPU_FILL(value, dest, size, bit) \
{ \
vu##bit tmp = (vu##bit)(value); \
CpuSet((void *)&tmp, \
dest, \
CPU_SET_##bit##BIT | CPU_SET_SRC_FIXED | ((size)/(bit/8) & 0x1FFFFF)); \
}
#define CpuFill16(value, dest, size) CPU_FILL(value, dest, size, 16)
#define CpuFill32(value, dest, size) CPU_FILL(value, dest, size, 32)
#define CPU_COPY(src, dest, size, bit) CpuSet(src, dest, CPU_SET_##bit##BIT | ((size)/(bit/8) & 0x1FFFFF))
#define CpuCopy16(src, dest, size) CPU_COPY(src, dest, size, 16)
#define CpuCopy32(src, dest, size) CPU_COPY(src, dest, size, 32)
#define CpuFastFill(value, dest, size) \
{ \
vu32 tmp = (vu32)(value); \
CpuFastSet((void *)&tmp, \
dest, \
CPU_FAST_SET_SRC_FIXED | ((size)/(32/8) & 0x1FFFFF)); \
}
#define CpuFastFill16(value, dest, size) CpuFastFill(((value) << 16) | (value), (dest), (size))
#define CpuFastCopy(src, dest, size) CpuFastSet(src, dest, ((size)/(32/8) & 0x1FFFFF))
#define DmaSet(dmaNum, src, dest, control) \
{ \
vu32 *dmaRegs = (vu32 *)REG_ADDR_DMA##dmaNum; \
dmaRegs[0] = (vu32)(src); \
dmaRegs[1] = (vu32)(dest); \
dmaRegs[2] = (vu32)(control); \
dmaRegs[2]; \
}
#define DMA_FILL(dmaNum, value, dest, size, bit) \
{ \
vu##bit tmp = (vu##bit)(value); \
DmaSet(dmaNum, \
&tmp, \
dest, \
(DMA_ENABLE | DMA_START_NOW | DMA_##bit##BIT | DMA_SRC_FIXED | DMA_DEST_INC) << 16 \
| ((size)/(bit/8))); \
}
#define DmaFill16(dmaNum, value, dest, size) DMA_FILL(dmaNum, value, dest, size, 16)
#define DmaFill32(dmaNum, value, dest, size) DMA_FILL(dmaNum, value, dest, size, 32)
// Note that the DMA clear macros cause the DMA control value to be calculated
// at runtime rather than compile time. The size is divided by the DMA transfer
// unit size (2 or 4 bytes) and then combined with the DMA control flags using a
// bitwise OR operation.
#define DMA_CLEAR(dmaNum, dest, size, bit) \
{ \
vu##bit *_dest = (vu##bit *)(dest); \
u32 _size = size; \
DmaFill##bit(dmaNum, 0, _dest, _size); \
}
#define DmaClear16(dmaNum, dest, size) DMA_CLEAR(dmaNum, dest, size, 16)
#define DmaClear32(dmaNum, dest, size) DMA_CLEAR(dmaNum, dest, size, 32)
#define DMA_COPY(dmaNum, src, dest, size, bit) \
DmaSet(dmaNum, \
src, \
dest, \
(DMA_ENABLE | DMA_START_NOW | DMA_##bit##BIT | DMA_SRC_INC | DMA_DEST_INC) << 16 \
| ((size)/(bit/8)))
#define DmaCopy16(dmaNum, src, dest, size) DMA_COPY(dmaNum, src, dest, size, 16)
#define DmaCopy32(dmaNum, src, dest, size) DMA_COPY(dmaNum, src, dest, size, 32)
#define DmaStop(dmaNum) \
{ \
vu16 *dmaRegs = (vu16 *)REG_ADDR_DMA##dmaNum; \
dmaRegs[5] &= ~(DMA_START_MASK | DMA_DREQ_ON | DMA_REPEAT); \
dmaRegs[5] &= ~DMA_ENABLE; \
dmaRegs[5]; \
}
#define DmaCopyLarge(dmaNum, src, dest, size, block, bit) \
{ \
const void *_src = src; \
void *_dest = (void *)(dest); \
u32 _size = size; \
while (1) \
{ \
DmaCopy##bit(dmaNum, _src, _dest, (block)); \
_src += (block); \
_dest += (block); \
_size -= (block); \
if (_size <= (block)) \
{ \
DmaCopy##bit(dmaNum, _src, _dest, _size); \
break; \
} \
} \
}
#define DmaClearLarge(dmaNum, dest, size, block, bit) \
{ \
void *_dest = dest; \
u32 _size = size; \
while (1) \
{ \
DmaFill##bit(dmaNum, 0, _dest, (block)); \
_dest += (block); \
_size -= (block); \
if (_size <= (block)) \
{ \
DmaFill##bit(dmaNum, 0, _dest, _size); \
break; \
} \
} \
}
#define DmaCopyLarge16(dmaNum, src, dest, size, block) DmaCopyLarge(dmaNum, src, dest, size, block, 16)
#define DmaCopyLarge32(dmaNum, src, dest, size, block) DmaCopyLarge(dmaNum, src, dest, size, block, 32)
#define DmaClearLarge16(dmaNum, dest, size, block) DmaClearLarge(dmaNum, dest, size, block, 16)
#define DmaClearLarge32(dmaNum, dest, size, block) DmaClearLarge(dmaNum, dest, size, block, 32)
#define DmaCopyDefvars(dmaNum, src, dest, size, bit) \
{ \
const void *_src = src; \
void *_dest = (void *)(dest); \
u32 _size = size; \
DmaCopy##bit(dmaNum, _src, _dest, _size); \
}
#define DmaCopy16Defvars(dmaNum, src, dest, size) DmaCopyDefvars(dmaNum, src, dest, size, 16)
#define DmaCopy32Defvars(dmaNum, src, dest, size) DmaCopyDefvars(dmaNum, src, dest, size, 32)
#define DmaFillLarge(dmaNum, fillval, dest, size, block, bit) \
{ \
void *_dest = (void *)(dest); \
u32 _size = (u32)(size); \
while (1) \
{ \
DmaFill##bit(dmaNum, fillval, _dest, (block)); \
_dest += (block); \
_size -= (block); \
if (_size <= (block)) \
{ \
DmaFill##bit(dmaNum, fillval, _dest, _size); \
break; \
} \
} \
}
#define DmaFill16Large(dmaNum, fillval, dest, size, block) DmaFillLarge(dmaNum, fillval, dest, size, block, 16)
#define DmaFill32Large(dmaNum, fillval, dest, size, block) DmaFillLarge(dmaNum, fillval, dest, size, block, 32)
#define DmaFillDefvars(dmaNum, fillval, dest, size, bit) \
{ \
void *_dest = (void *)(dest); \
u32 _size = (u##bit)(size); \
DmaFill##bit(dmaNum, fillval, _dest, _size); \
}
#define DmaFill16Defvars(dmaNum, fillval, dest, size) DmaFillDefvars(dmaNum, fillval, dest, size, 16)
#define DmaFill32Defvars(dmaNum, fillval, dest, size) DmaFillDefvars(dmaNum, fillval, dest, size, 32)
// from pokeemerald
// Maximum amount of data we will transfer in one operation
#define MAX_DMA_BLOCK_SIZE 0x1000
#define MAX_DMA_REQUESTS 128
#define DMA_REQUEST_COPY32 1
#define DMA_REQUEST_FILL32 2
#define DMA_REQUEST_COPY16 3
#define DMA_REQUEST_FILL16 4
#define Dma3CopyLarge_(src, dest, size, bit) \
{ \
const void *_src = src; \
void *_dest = dest; \
u32 _size = size; \
while (1) \
{ \
if (_size <= MAX_DMA_BLOCK_SIZE) \
{ \
DmaCopy##bit(3, _src, _dest, _size); \
break; \
} \
DmaCopy##bit(3, _src, _dest, MAX_DMA_BLOCK_SIZE); \
_src += MAX_DMA_BLOCK_SIZE; \
_dest += MAX_DMA_BLOCK_SIZE; \
_size -= MAX_DMA_BLOCK_SIZE; \
} \
}
#define Dma3CopyLarge16_(src, dest, size) Dma3CopyLarge_(src, dest, size, 16)
#define Dma3CopyLarge32_(src, dest, size) Dma3CopyLarge_(src, dest, size, 32)
#define Dma3FillLarge_(value, dest, size, bit) \
{ \
void *_dest = dest; \
u32 _size = size; \
while (1) \
{ \
if (_size <= MAX_DMA_BLOCK_SIZE) \
{ \
DmaFill##bit(3, value, _dest, _size); \
break; \
} \
DmaFill##bit(3, value, _dest, MAX_DMA_BLOCK_SIZE); \
_dest += MAX_DMA_BLOCK_SIZE; \
_size -= MAX_DMA_BLOCK_SIZE; \
} \
}
#define Dma3FillLarge16_(value, dest, size) Dma3FillLarge_(value, dest, size, 16)
#define Dma3FillLarge32_(value, dest, size) Dma3FillLarge_(value, dest, size, 32)
#endif // GUARD_GBA_MACRO_H
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