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Demacro-ize dma_transfer_expand

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This commit is contained in:
twinaphex 2014-12-11 03:38:57 +01:00
parent 60e670f35b
commit 9a468a0f3b
1 changed files with 72 additions and 54 deletions
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126
gba_memory.c
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@ -2943,58 +2943,6 @@ dma_region_type dma_region_map[16] =
break; \
} \
#define dma_transfer_expand(transfer_size) \
switch((dma->dest_direction << 2) | dma->source_direction) \
{ \
case 0x00: \
dma_transfer_loop(inc, inc, transfer_size, writeback); \
\
case 0x01: \
dma_transfer_loop(dec, inc, transfer_size, writeback); \
\
case 0x02: \
dma_transfer_loop(fix, inc, transfer_size, writeback); \
\
case 0x03: \
break; \
\
case 0x04: \
dma_transfer_loop(inc, dec, transfer_size, writeback); \
\
case 0x05: \
dma_transfer_loop(dec, dec, transfer_size, writeback); \
\
case 0x06: \
dma_transfer_loop(fix, dec, transfer_size, writeback); \
\
case 0x07: \
break; \
\
case 0x08: \
dma_transfer_loop(inc, fix, transfer_size, writeback); \
\
case 0x09: \
dma_transfer_loop(dec, fix, transfer_size, writeback); \
\
case 0x0A: \
dma_transfer_loop(fix, fix, transfer_size, writeback); \
\
case 0x0B: \
break; \
\
case 0x0C: \
dma_transfer_loop(inc, inc, transfer_size, reload); \
\
case 0x0D: \
dma_transfer_loop(dec, inc, transfer_size, reload); \
\
case 0x0E: \
dma_transfer_loop(fix, inc, transfer_size, reload); \
\
case 0x0F: \
break; \
} \
cpu_alert_type dma_transfer(dma_transfer_type *dma)
{
u32 i;
@ -3027,14 +2975,84 @@ cpu_alert_type dma_transfer(dma_transfer_type *dma)
src_ptr &= ~0x01;
dest_ptr &= ~0x01;
cycle_dma16_words += length;
dma_transfer_expand(16);
switch((dma->dest_direction << 2) | dma->source_direction)
{
case 0x00:
dma_transfer_loop(inc, inc, 16, writeback);
case 0x01:
dma_transfer_loop(dec, inc, 16, writeback);
case 0x02:
dma_transfer_loop(fix, inc, 16, writeback);
case 0x03:
break;
case 0x04:
dma_transfer_loop(inc, dec, 16, writeback);
case 0x05:
dma_transfer_loop(dec, dec, 16, writeback);
case 0x06:
dma_transfer_loop(fix, dec, 16, writeback);
case 0x07:
break;
case 0x08:
dma_transfer_loop(inc, fix, 16, writeback);
case 0x09:
dma_transfer_loop(dec, fix, 16, writeback);
case 0x0A:
dma_transfer_loop(fix, fix, 16, writeback);
case 0x0B:
break;
case 0x0C:
dma_transfer_loop(inc, inc, 16, reload);
case 0x0D:
dma_transfer_loop(dec, inc, 16, reload);
case 0x0E:
dma_transfer_loop(fix, inc, 16, reload);
case 0x0F:
break;
}
}
else
{
src_ptr &= ~0x03;
dest_ptr &= ~0x03;
cycle_dma32_words += length;
dma_transfer_expand(32);
switch((dma->dest_direction << 2) | dma->source_direction)
{
case 0x00:
dma_transfer_loop(inc, inc, 32, writeback);
case 0x01:
dma_transfer_loop(dec, inc, 32, writeback);
case 0x02:
dma_transfer_loop(fix, inc, 32, writeback);
case 0x03:
break;
case 0x04:
dma_transfer_loop(inc, dec, 32, writeback);
case 0x05:
dma_transfer_loop(dec, dec, 32, writeback);
case 0x06:
dma_transfer_loop(fix, dec, 32, writeback);
case 0x07:
break;
case 0x08:
dma_transfer_loop(inc, fix, 32, writeback);
case 0x09:
dma_transfer_loop(dec, fix, 32, writeback);
case 0x0A:
dma_transfer_loop(fix, fix, 32, writeback);
case 0x0B:
break;
case 0x0C:
dma_transfer_loop(inc, inc, 32, reload);
case 0x0D:
dma_transfer_loop(dec, inc, 32, reload);
case 0x0E:
dma_transfer_loop(fix, inc, 32, reload);
case 0x0F:
break;
}
}
if((dma->repeat_type == DMA_NO_REPEAT) ||