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Detect potential misalignment in modern

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This commit is contained in:
Martin Griffin
2023-07-24 19:04:23 +01:00
parent b53cca1a06
commit 31a3ada7de
30 changed files with 142 additions and 45 deletions
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include/gba/syscall.h
+22
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@@ -27,10 +27,32 @@ u16 ArcTan2(s16 x, s16 y);
void CpuSet(const void *src, void *dest, u32 control);
#if MODERN
// NOTE: Assumes 16-bit CpuSets unless control is a constant and has
// CPU_SET_32BIT set.
#define CpuSet(src, dest, control) \
do \
{ \
_Static_assert(_Alignof(src) >= __builtin_choose_expr(__builtin_constant_p(control), ((control) & CPU_SET_32BIT) ? 4 : 2, 2), "source potentially unaligned"); \
_Static_assert(_Alignof(dest) >= __builtin_choose_expr(__builtin_constant_p(control), ((control) & CPU_SET_32BIT) ? 4 : 2, 2), "destination potentially unaligned"); \
CpuSet(src, dest, control); \
} while (0)
#endif
#define CPU_FAST_SET_SRC_FIXED 0x01000000
void CpuFastSet(const void *src, void *dest, u32 control);
#if MODERN
#define CpuFastSet(src, dest, control) \
do \
{ \
_Static_assert(_Alignof(src) >= 4, "source potentially unaligned"); \
_Static_assert(_Alignof(dest) >= 4, "destination potentially unaligned"); \
CpuFastSet(src, dest, control); \
} while (0)
#endif
void BgAffineSet(struct BgAffineSrcData *src, struct BgAffineDstData *dest, s32 count);
void ObjAffineSet(struct ObjAffineSrcData *src, void *dest, s32 count, s32 offset);