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| author | pikalaxalt <PikalaxALT@gmail.com> | 2016-05-15 21:50:31 -0400 |
|---|---|---|
| committer | pikalaxalt <PikalaxALT@gmail.com> | 2016-05-15 22:00:17 -0400 |
| commit | 87b733994bdcb85e544f99899e50193c407909c6 (patch) | |
| tree | 11007cad7c5405c26c34488899c1deabd3f7cad0 /macros.asm | |
| parent | a5f5418faeb2ded9ddd898851ea0716e2d6ecf09 (diff) | |
SPRITE_ANIM_FRAME_IDX constants
Diffstat (limited to 'macros.asm')
| -rw-r--r-- | macros.asm | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/macros.asm b/macros.asm index 6656ca038..4d67d5f5c 100644 --- a/macros.asm +++ b/macros.asm @@ -270,3 +270,22 @@ jumptable: MACRO ld l, a jp [hl] endm + +maskbits: macro +; returns to x +; usage in rejection sampling +; .loop +; call Random +; maskbits 30 +; and x +; cp 30 +; jr nc, .loop + +x = 1 +rept 8 +IF \1 > x +x = (x + 1) * 2 +- 1 +ENDC +endr +endm + |