mirror of
https://github.com/Ninjdai1/pokeemerald.git
synced 2024-09-28 16:54:29 +02:00
match ProcessDma3Requests
This commit is contained in:
camthesaxman
parent
601ec28721
commit
0fd6ae4791
|
|
@ -29,76 +29,92 @@ void ClearDma3Requests(void)
|
|||
gDma3ManagerLocked = FALSE;
|
||||
}
|
||||
|
||||
#ifdef NONMATCHING
|
||||
// Maximum amount of data will will transfer in one operation
|
||||
#define DMA_MAX_BLOCK_SIZE 0x1000
|
||||
|
||||
#define Dma3CopyLarge_(src, dest, size, bit) \
|
||||
{ \
|
||||
const void *_src = src; \
|
||||
void *_dest = dest; \
|
||||
u32 _size = size; \
|
||||
while (1) \
|
||||
{ \
|
||||
if (_size <= DMA_MAX_BLOCK_SIZE) \
|
||||
{ \
|
||||
DmaCopy##bit(3, _src, _dest, _size); \
|
||||
break; \
|
||||
} \
|
||||
DmaCopy##bit(3, _src, _dest, DMA_MAX_BLOCK_SIZE); \
|
||||
_src += DMA_MAX_BLOCK_SIZE; \
|
||||
_dest += DMA_MAX_BLOCK_SIZE; \
|
||||
_size -= DMA_MAX_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 <= DMA_MAX_BLOCK_SIZE) \
|
||||
{ \
|
||||
DmaFill##bit(3, value, _dest, _size); \
|
||||
break; \
|
||||
} \
|
||||
DmaFill##bit(3, value, _dest, DMA_MAX_BLOCK_SIZE); \
|
||||
_dest += DMA_MAX_BLOCK_SIZE; \
|
||||
_size -= DMA_MAX_BLOCK_SIZE; \
|
||||
} \
|
||||
}
|
||||
|
||||
#define Dma3FillLarge16_(value, dest, size) Dma3FillLarge_(value, dest, size, 16)
|
||||
#define Dma3FillLarge32_(value, dest, size) Dma3FillLarge_(value, dest, size, 32)
|
||||
|
||||
|
||||
void ProcessDma3Requests(void)
|
||||
{
|
||||
// NOTE: the fillerA member of the DMA struct is actually u32 value;
|
||||
u16 total_size;
|
||||
u16 totalSize;
|
||||
|
||||
if (gDma3ManagerLocked)
|
||||
return;
|
||||
|
||||
total_size = 0;
|
||||
totalSize = 0;
|
||||
|
||||
// as long as there are DMA requests to process (unless size or vblank is an issue), do not exit
|
||||
while (gDma3Requests[gDma3RequestCursor].size)
|
||||
while (gDma3Requests[gDma3RequestCursor].size != 0)
|
||||
{
|
||||
total_size += gDma3Requests[gDma3RequestCursor].size;
|
||||
totalSize += gDma3Requests[gDma3RequestCursor].size;
|
||||
|
||||
if (total_size > 0xA000)
|
||||
if (totalSize > 0xA000)
|
||||
return; // don't do too much at once
|
||||
|
||||
if (REG_VCOUNT > 224)
|
||||
return;// we're about to leave vblank, stop
|
||||
if (*(u8 *)REG_ADDR_VCOUNT > 224)
|
||||
return; // we're about to leave vblank, stop
|
||||
|
||||
switch (gDma3Requests[gDma3RequestCursor].mode)
|
||||
{
|
||||
case 1: // regular 32-bit copy
|
||||
// _08000C8C
|
||||
if(gDma3Requests[gDma3RequestCursor].size <= 0x1000)
|
||||
{
|
||||
DmaCopy32(3, gDma3Requests[gDma3RequestCursor].src, gDma3Requests[gDma3RequestCursor].dest, gDma3Requests[gDma3RequestCursor].size);
|
||||
break;
|
||||
}
|
||||
while (gDma3Requests[gDma3RequestCursor].size > 0x1000)
|
||||
{
|
||||
DmaCopy32(3, gDma3Requests[gDma3RequestCursor].src, gDma3Requests[gDma3RequestCursor].dest, 0x1000);
|
||||
gDma3Requests[gDma3RequestCursor].src += 0x1000;
|
||||
gDma3Requests[gDma3RequestCursor].dest += 0x1000;
|
||||
gDma3Requests[gDma3RequestCursor].size -= 0x1000;
|
||||
}
|
||||
DmaCopy32(3, gDma3Requests[gDma3RequestCursor].src, gDma3Requests[gDma3RequestCursor].dest, gDma3Requests[gDma3RequestCursor].size);
|
||||
Dma3CopyLarge32_(gDma3Requests[gDma3RequestCursor].src,
|
||||
gDma3Requests[gDma3RequestCursor].dest,
|
||||
gDma3Requests[gDma3RequestCursor].size);
|
||||
break;
|
||||
case 2: // repeat a single 32-bit value across RAM
|
||||
// _08000CD0
|
||||
while (gDma3Requests[gDma3RequestCursor].size > 0x1000)
|
||||
{
|
||||
DmaFill32(3, gDma3Requests[gDma3RequestCursor].value, gDma3Requests[gDma3RequestCursor].dest, 0x1000);
|
||||
gDma3Requests[gDma3RequestCursor].dest += 0x1000;
|
||||
gDma3Requests[gDma3RequestCursor].size -= 0x1000;
|
||||
}
|
||||
DmaFill32(3, gDma3Requests[gDma3RequestCursor].value, gDma3Requests[gDma3RequestCursor].dest, gDma3Requests[gDma3RequestCursor].size);
|
||||
Dma3FillLarge32_(gDma3Requests[gDma3RequestCursor].value,
|
||||
gDma3Requests[gDma3RequestCursor].dest,
|
||||
gDma3Requests[gDma3RequestCursor].size);
|
||||
break;
|
||||
case 3: // regular 16-bit copy
|
||||
// _08000D3C
|
||||
while (gDma3Requests[gDma3RequestCursor].size > 0x1000)
|
||||
{
|
||||
DmaCopy16(3, gDma3Requests[gDma3RequestCursor].src, gDma3Requests[gDma3RequestCursor].dest, 0x1000);
|
||||
gDma3Requests[gDma3RequestCursor].src += 0x1000;
|
||||
gDma3Requests[gDma3RequestCursor].dest += 0x1000;
|
||||
gDma3Requests[gDma3RequestCursor].size -= 0x1000;
|
||||
}
|
||||
DmaCopy16(3, gDma3Requests[gDma3RequestCursor].src, gDma3Requests[gDma3RequestCursor].dest, gDma3Requests[gDma3RequestCursor].size);
|
||||
Dma3CopyLarge16_(gDma3Requests[gDma3RequestCursor].src,
|
||||
gDma3Requests[gDma3RequestCursor].dest,
|
||||
gDma3Requests[gDma3RequestCursor].size);
|
||||
break;
|
||||
case 4: // repeat a single 16-bit value across RAM
|
||||
// _08000D88
|
||||
while (gDma3Requests[gDma3RequestCursor].size > 0x1000)
|
||||
{
|
||||
DmaFill16(3, gDma3Requests[gDma3RequestCursor].value, gDma3Requests[gDma3RequestCursor].dest, 0x1000);
|
||||
gDma3Requests[gDma3RequestCursor].dest += 0x1000;
|
||||
gDma3Requests[gDma3RequestCursor].size -= 0x1000;
|
||||
}
|
||||
DmaFill16(3, gDma3Requests[gDma3RequestCursor].value, gDma3Requests[gDma3RequestCursor].dest, gDma3Requests[gDma3RequestCursor].size);
|
||||
Dma3FillLarge16_(gDma3Requests[gDma3RequestCursor].value,
|
||||
gDma3Requests[gDma3RequestCursor].dest,
|
||||
gDma3Requests[gDma3RequestCursor].size);
|
||||
break;
|
||||
}
|
||||
gDma3Requests[gDma3RequestCursor].src = NULL;
|
||||
|
|
@ -112,322 +128,6 @@ void ProcessDma3Requests(void)
|
|||
gDma3RequestCursor = 0;
|
||||
}
|
||||
}
|
||||
#else
|
||||
__attribute__((naked))
|
||||
void ProcessDma3Requests(void)
|
||||
{
|
||||
asm(".syntax unified\n\
|
||||
push {r4-r7,lr}\n\
|
||||
mov r7, r10\n\
|
||||
mov r6, r9\n\
|
||||
mov r5, r8\n\
|
||||
push {r5-r7}\n\
|
||||
sub sp, 0xC\n\
|
||||
ldr r0, =gDma3ManagerLocked\n\
|
||||
ldrb r0, [r0]\n\
|
||||
cmp r0, 0\n\
|
||||
beq _08000C06\n\
|
||||
b _08000E46\n\
|
||||
_08000C06:\n\
|
||||
movs r0, 0\n\
|
||||
str r0, [sp, 0x8]\n\
|
||||
ldr r1, =gDma3Requests\n\
|
||||
ldr r2, =gDma3RequestCursor\n\
|
||||
ldrb r0, [r2]\n\
|
||||
lsls r0, 4\n\
|
||||
adds r0, r1\n\
|
||||
ldrh r0, [r0, 0x8]\n\
|
||||
mov r12, r2\n\
|
||||
cmp r0, 0\n\
|
||||
bne _08000C1E\n\
|
||||
b _08000E46\n\
|
||||
_08000C1E:\n\
|
||||
mov r8, r1\n\
|
||||
adds r1, 0x4\n\
|
||||
mov r10, r1\n\
|
||||
movs r6, 0x80\n\
|
||||
lsls r6, 5\n\
|
||||
ldr r7, =0x040000D4 @REG_DMA3\n\
|
||||
movs r2, 0\n\
|
||||
mov r9, r2\n\
|
||||
_08000C2E:\n\
|
||||
mov r3, r12 @ gDma3RequestCursor\n\
|
||||
ldrb r0, [r3]\n\
|
||||
lsls r5, r0, 4\n\
|
||||
mov r0, r8 @ gDma3Requests\n\
|
||||
adds r1, r5, r0 @ gDma3Requests[gDma3RequestCursor]\n\
|
||||
ldrh r0, [r1, 0x8] @ gDma3Requests[gDma3RequestCursor].size\n\
|
||||
ldr r2, [sp, 0x8]\n\
|
||||
adds r0, r2, r0\n\
|
||||
lsls r0, 16\n\
|
||||
lsrs r0, 16\n\
|
||||
str r0, [sp, 0x8]\n\
|
||||
movs r0, 0xA0\n\
|
||||
lsls r0, 8\n\
|
||||
ldr r3, [sp, 0x8]\n\
|
||||
cmp r3, r0\n\
|
||||
bls _08000C50\n\
|
||||
b _08000E46\n\
|
||||
_08000C50:\n\
|
||||
ldr r0, =0x04000006 @REG_VCOUNT\n\
|
||||
ldrb r0, [r0]\n\
|
||||
cmp r0, 0xE0\n\
|
||||
bls _08000C5A\n\
|
||||
b _08000E46\n\
|
||||
_08000C5A:\n\
|
||||
ldrh r0, [r1, 0xA]\n\
|
||||
cmp r0, 0x2\n\
|
||||
beq _08000CD0\n\
|
||||
cmp r0, 0x2\n\
|
||||
bgt _08000C80\n\
|
||||
cmp r0, 0x1\n\
|
||||
beq _08000C8C\n\
|
||||
b _08000DF0\n\
|
||||
.pool\n\
|
||||
_08000C80:\n\
|
||||
cmp r0, 0x3\n\
|
||||
beq _08000D3C\n\
|
||||
cmp r0, 0x4\n\
|
||||
bne _08000C8A\n\
|
||||
b _08000D88\n\
|
||||
_08000C8A:\n\
|
||||
b _08000DF0\n\
|
||||
_08000C8C:\n\
|
||||
ldr r3, [r1]\n\
|
||||
mov r2, r10\n\
|
||||
adds r0, r5, r2\n\
|
||||
ldr r2, [r0]\n\
|
||||
ldrh r1, [r1, 0x8]\n\
|
||||
cmp r1, r6\n\
|
||||
bhi _08000CA6\n\
|
||||
str r3, [r7]\n\
|
||||
str r2, [r7, 0x4]\n\
|
||||
lsrs r0, r1, 2\n\
|
||||
movs r1, 0x84\n\
|
||||
lsls r1, 24\n\
|
||||
b _08000DAA\n\
|
||||
_08000CA6:\n\
|
||||
ldr r4, =0x040000D4 @REG_DMA3\n\
|
||||
str r3, [r4]\n\
|
||||
str r2, [r4, 0x4]\n\
|
||||
ldr r0, =0x84000400\n\
|
||||
str r0, [r4, 0x8]\n\
|
||||
ldr r0, [r4, 0x8]\n\
|
||||
adds r3, r6\n\
|
||||
adds r2, r6\n\
|
||||
subs r1, r6\n\
|
||||
cmp r1, r6\n\
|
||||
bhi _08000CA6\n\
|
||||
str r3, [r4]\n\
|
||||
str r2, [r4, 0x4]\n\
|
||||
lsrs r0, r1, 2\n\
|
||||
movs r1, 0x84\n\
|
||||
lsls r1, 24\n\
|
||||
b _08000D76\n\
|
||||
.pool\n\
|
||||
_08000CD0:\n\
|
||||
mov r3, r10\n\
|
||||
adds r0, r5, r3\n\
|
||||
ldr r4, [r0]\n\
|
||||
ldrh r1, [r1, 0x8]\n\
|
||||
cmp r1, r6\n\
|
||||
bhi _08000CF4\n\
|
||||
mov r0, r8\n\
|
||||
adds r0, 0xC\n\
|
||||
adds r0, r5, r0\n\
|
||||
ldr r0, [r0]\n\
|
||||
str r0, [sp]\n\
|
||||
mov r5, sp\n\
|
||||
str r5, [r7]\n\
|
||||
str r4, [r7, 0x4]\n\
|
||||
lsrs r0, r1, 2\n\
|
||||
movs r1, 0x85\n\
|
||||
lsls r1, 24\n\
|
||||
b _08000DAA\n\
|
||||
_08000CF4:\n\
|
||||
mov r2, r12\n\
|
||||
ldrb r0, [r2]\n\
|
||||
lsls r0, 4\n\
|
||||
mov r5, r8\n\
|
||||
adds r5, 0xC\n\
|
||||
adds r0, r5\n\
|
||||
ldr r0, [r0]\n\
|
||||
str r0, [sp]\n\
|
||||
ldr r3, =0x040000D4 @REG_DMA3\n\
|
||||
mov r0, sp\n\
|
||||
str r0, [r3]\n\
|
||||
str r4, [r3, 0x4]\n\
|
||||
ldr r0, =0x85000400\n\
|
||||
str r0, [r3, 0x8]\n\
|
||||
ldr r0, [r3, 0x8]\n\
|
||||
adds r4, r6\n\
|
||||
subs r1, r6\n\
|
||||
cmp r1, r6\n\
|
||||
bhi _08000CF4\n\
|
||||
ldrb r0, [r2]\n\
|
||||
lsls r0, 4\n\
|
||||
adds r0, r5\n\
|
||||
ldr r0, [r0]\n\
|
||||
str r0, [sp]\n\
|
||||
mov r2, sp\n\
|
||||
str r2, [r3]\n\
|
||||
str r4, [r3, 0x4]\n\
|
||||
lsrs r0, r1, 2\n\
|
||||
movs r1, 0x85\n\
|
||||
lsls r1, 24\n\
|
||||
b _08000DEA\n\
|
||||
.pool\n\
|
||||
_08000D3C:\n\
|
||||
ldr r3, [r1]\n\
|
||||
mov r2, r10\n\
|
||||
adds r0, r5, r2\n\
|
||||
ldr r2, [r0]\n\
|
||||
ldrh r1, [r1, 0x8]\n\
|
||||
cmp r1, r6\n\
|
||||
bhi _08000D56\n\
|
||||
str r3, [r7]\n\
|
||||
str r2, [r7, 0x4]\n\
|
||||
lsrs r0, r1, 1\n\
|
||||
movs r1, 0x80\n\
|
||||
lsls r1, 24\n\
|
||||
b _08000DAA\n\
|
||||
_08000D56:\n\
|
||||
ldr r4, =0x040000D4 @REG_DMA3\n\
|
||||
str r3, [r4]\n\
|
||||
str r2, [r4, 0x4]\n\
|
||||
ldr r0, =0x80000800\n\
|
||||
str r0, [r4, 0x8]\n\
|
||||
ldr r0, [r4, 0x8]\n\
|
||||
adds r3, r6\n\
|
||||
adds r2, r6\n\
|
||||
subs r1, r6\n\
|
||||
cmp r1, r6\n\
|
||||
bhi _08000D56\n\
|
||||
str r3, [r4]\n\
|
||||
str r2, [r4, 0x4]\n\
|
||||
lsrs r0, r1, 1\n\
|
||||
movs r1, 0x80\n\
|
||||
lsls r1, 24\n\
|
||||
_08000D76:\n\
|
||||
orrs r0, r1\n\
|
||||
str r0, [r4, 0x8]\n\
|
||||
ldr r0, [r4, 0x8]\n\
|
||||
b _08000DF0\n\
|
||||
.pool\n\
|
||||
_08000D88:\n\
|
||||
mov r3, r10\n\
|
||||
adds r0, r5, r3\n\
|
||||
ldr r2, [r0]\n\
|
||||
ldrh r4, [r1, 0x8]\n\
|
||||
add r1, sp, 0x4\n\
|
||||
cmp r4, r6\n\
|
||||
bhi _08000DB2\n\
|
||||
mov r0, r8\n\
|
||||
adds r0, 0xC\n\
|
||||
adds r0, r5, r0\n\
|
||||
ldr r0, [r0]\n\
|
||||
strh r0, [r1]\n\
|
||||
str r1, [r7]\n\
|
||||
str r2, [r7, 0x4]\n\
|
||||
lsrs r0, r4, 1\n\
|
||||
movs r1, 0x81\n\
|
||||
lsls r1, 24\n\
|
||||
_08000DAA:\n\
|
||||
orrs r0, r1\n\
|
||||
str r0, [r7, 0x8]\n\
|
||||
ldr r0, [r7, 0x8]\n\
|
||||
b _08000DF0\n\
|
||||
_08000DB2:\n\
|
||||
mov r5, r12\n\
|
||||
ldrb r0, [r5]\n\
|
||||
lsls r0, 4\n\
|
||||
ldr r3, =gDma3Requests + 0x0C\n\
|
||||
adds r0, r3\n\
|
||||
ldr r0, [r0]\n\
|
||||
strh r0, [r1]\n\
|
||||
ldr r3, =0x040000D4 @REG_DMA3\n\
|
||||
str r1, [r3]\n\
|
||||
str r2, [r3, 0x4]\n\
|
||||
ldr r0, =0x81000800\n\
|
||||
str r0, [r3, 0x8]\n\
|
||||
ldr r0, [r3, 0x8]\n\
|
||||
adds r2, r6\n\
|
||||
subs r4, r6\n\
|
||||
cmp r4, r6\n\
|
||||
bhi _08000DB2\n\
|
||||
ldrb r0, [r5]\n\
|
||||
lsls r0, 4\n\
|
||||
ldr r5, =gDma3Requests + 0x0C\n\
|
||||
adds r0, r5\n\
|
||||
ldr r0, [r0]\n\
|
||||
strh r0, [r1]\n\
|
||||
str r1, [r3]\n\
|
||||
str r2, [r3, 0x4]\n\
|
||||
lsrs r0, r4, 1\n\
|
||||
movs r1, 0x81\n\
|
||||
lsls r1, 24\n\
|
||||
_08000DEA:\n\
|
||||
orrs r0, r1\n\
|
||||
str r0, [r3, 0x8]\n\
|
||||
ldr r0, [r3, 0x8]\n\
|
||||
_08000DF0:\n\
|
||||
ldr r1, =gDma3Requests\n\
|
||||
mov r3, r12\n\
|
||||
ldrb r0, [r3]\n\
|
||||
lsls r0, 4\n\
|
||||
adds r0, r1\n\
|
||||
mov r2, r9\n\
|
||||
str r2, [r0]\n\
|
||||
ldrb r0, [r3]\n\
|
||||
lsls r0, 4\n\
|
||||
add r0, r10\n\
|
||||
str r2, [r0]\n\
|
||||
ldrb r0, [r3]\n\
|
||||
lsls r0, 4\n\
|
||||
adds r0, r1\n\
|
||||
movs r4, 0\n\
|
||||
strh r2, [r0, 0x8]\n\
|
||||
ldrb r0, [r3]\n\
|
||||
lsls r0, 4\n\
|
||||
adds r0, r1\n\
|
||||
mov r5, r9\n\
|
||||
strh r5, [r0, 0xA]\n\
|
||||
ldrb r0, [r3]\n\
|
||||
lsls r0, 4\n\
|
||||
adds r1, 0xC\n\
|
||||
adds r0, r1\n\
|
||||
mov r1, r9\n\
|
||||
str r1, [r0]\n\
|
||||
ldrb r0, [r3]\n\
|
||||
adds r0, 0x1\n\
|
||||
strb r0, [r3]\n\
|
||||
lsls r0, 24\n\
|
||||
cmp r0, 0\n\
|
||||
bge _08000E34\n\
|
||||
strb r4, [r3]\n\
|
||||
_08000E34:\n\
|
||||
mov r2, r12\n\
|
||||
ldrb r0, [r2]\n\
|
||||
lsls r0, 4\n\
|
||||
ldr r3, =gDma3Requests\n\
|
||||
adds r0, r3\n\
|
||||
ldrh r0, [r0, 0x8]\n\
|
||||
cmp r0, 0\n\
|
||||
beq _08000E46\n\
|
||||
b _08000C2E\n\
|
||||
_08000E46:\n\
|
||||
add sp, 0xC\n\
|
||||
pop {r3-r5}\n\
|
||||
mov r8, r3\n\
|
||||
mov r9, r4\n\
|
||||
mov r10, r5\n\
|
||||
pop {r4-r7}\n\
|
||||
pop {r0}\n\
|
||||
bx r0\n\
|
||||
.pool\n\
|
||||
.syntax divided");
|
||||
}
|
||||
#endif
|
||||
|
||||
int RequestDma3Copy(const void *src, void *dest, u16 size, u8 mode)
|
||||
{
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user