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core: 

- small fix in VRAM mapping control;
This commit is contained in:
mtabachenko 2008-11-30 23:54:05 +00:00
parent e5a0463b14
commit e00fc1b849
1 changed files with 1 additions and 9 deletions
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10
desmume/src/MMU.cpp
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@ -394,7 +394,7 @@ void MMU_clearMem()
for (int i =0; i < 9; i++)
{
MMU.LCD_VRAM_ADDR[i] = 0xFFFFFFFF;
MMU.LCD_VRAM_ADDR[i] = 0;
for (int t = 0; t < 32; t++)
MMU.VRAM_MAP[i][t] = 7;
}
@ -412,8 +412,6 @@ u8 *MMU_RenderMapToLCD(u32 vram_addr)
u8 engine_offset = (vram_addr >> 14);
u8 block = MMU.VRAM_MAP[engine][engine_offset];
if (block == 7) return NULL;
if (!MMU.LCDCenable[block]) return NULL;
if (MMU.LCD_VRAM_ADDR[block] == 0xFFFFFFFF) return NULL;
vram_addr -= MMU.LCD_VRAM_ADDR[block];
u8 *tmp_addr = LCDdst[block] + vram_addr;
return (tmp_addr);
@ -433,9 +431,6 @@ static INLINE BOOL MMU_LCDmap(u32 *addr)
u8 engine_offset = (vram_addr >> 14);
u8 block = MMU.VRAM_MAP[engine][engine_offset];
if (block == 7) return TRUE;
if (!MMU.LCDCenable[block]) return TRUE;
if (MMU.LCD_VRAM_ADDR[block] == 0xFFFFFFFF) return TRUE;
//INFO("VRAM %i: engine=%i (offset=%i), map address = 0x%X, MMU address = 0x%X\n", block, engine, engine_offset, vram_addr, *addr);
vram_addr -= MMU.LCD_VRAM_ADDR[block];
vram_addr += LCDdata[block][0];
@ -446,9 +441,6 @@ static INLINE BOOL MMU_LCDmap(u32 *addr)
static INLINE void MMU_VRAMmapControl(u8 block, u8 VRAMBankCnt)
{
if (!(VRAMBankCnt & 0x80)) return;
if (!(VRAMBankCnt & 0x07)) return;
u32 vram_map_addr = 0xFFFFFFFF;
BOOL isMapped = FALSE;
u8 *LCD_addr = LCDdst[block];