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make flash source volatile (ported from emerald)

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This commit is contained in:
Kurausukun 2021-06-26 22:53:49 -04:00
parent 88bd618496
commit cf64f77349
1 changed files with 5 additions and 3 deletions
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8
src/agb_flash.c
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@ -127,7 +127,9 @@ void SetReadFlash1(u16 *dest)
}
}
void ReadFlash_Core(u8 *src, u8 *dest, u32 size)
// Using volatile here to make sure the flash memory will ONLY be read as bytes, to prevent any compiler optimizations.
void ReadFlash_Core(vu8 *src, u8 *dest, u32 size)
{
while (size-- != 0)
{
@ -142,7 +144,7 @@ void ReadFlash(u16 sectorNum, u32 offset, void *dest, u32 size)
vu16 readFlash_Core_Buffer[0x40];
vu16 *funcSrc;
vu16 *funcDest;
void (*readFlash_Core)(u8 *, u8 *, u32);
void (*readFlash_Core)(vu8 *, u8 *, u32);
REG_WAITCNT = (REG_WAITCNT & ~WAITCNT_SRAM_MASK) | WAITCNT_SRAM_8;
@ -164,7 +166,7 @@ void ReadFlash(u16 sectorNum, u32 offset, void *dest, u32 size)
i--;
}
readFlash_Core = (void (*)(u8 *, u8 *, u32))((s32)readFlash_Core_Buffer + 1);
readFlash_Core = (void (*)(vu8 *, u8 *, u32))((s32)readFlash_Core_Buffer + 1);
src = FLASH_BASE + (sectorNum << gFlash->sector.shift) + offset;