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Document pokemon_animations sprite ptr bug

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This commit is contained in:
PikalaxALT 2019-06-30 19:19:26 -04:00
parent 04c9793429
commit 92f17e8812
1 changed files with 5 additions and 0 deletions
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5
src/pokemon_animation.c
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@ -867,6 +867,11 @@ u8 GetSpeciesBackAnimSet(u16 species)
#define tSaved0 data[4]
#define tSaved2 data[5]
// BUG: In vanilla, tPtrLo is read as an s16, so if bit 15 of the
// address were to be set it would cause the pointer to be read
// as 0xFFFFXXXX instead of the desired 0x02YYXXXX.
// By dumb luck, this is not an issue in vanilla. However,
// changing the link order revealed this bug.
#if MODERN
#define ANIM_SPRITE(taskId) ((struct Sprite *)((gTasks[taskId].tPtrHi << 16) | ((u16)gTasks[taskId].tPtrLo)))
#else