diff options
| -rw-r--r-- | main.asm | 27 |
1 files changed, 26 insertions, 1 deletions
@@ -195,7 +195,32 @@ GetFarHalfword: ; 0x305d ret ; 0x306b -INCBIN "baserom.gbc",$306b,$30fe-$306b +INCBIN "baserom.gbc",$306b,$30e1-$306b + +IsInArray: ; 30e1 +; searches an array at hl for the value in a. +; skips (de - 1) bytes between reads, so to check every byte, de should be 1. +; if found, returns count in b and sets carry. + ld b,0 + ld c,a +.loop\@ + ld a,[hl] + cp a,$FF + jr z,.NotInArray\@ + cp c + jr z,.InArray\@ + inc b + add hl,de + jr .loop\@ +.NotInArray\@ + and a + ret +.InArray\@ + scf + ret +; 0x30f4 + +INCBIN "baserom.gbc",$30f4,$30fe - $30f4 AddNTimes: ; 0x30fe and a |