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| author | Bryan Bishop <kanzure@gmail.com> | 2013-09-05 11:30:12 -0700 |
|---|---|---|
| committer | Bryan Bishop <kanzure@gmail.com> | 2013-09-05 11:30:12 -0700 |
| commit | 40b4c87db7e9472d99186b67bdec3d48a2132e73 (patch) | |
| tree | b0ea0d40187c103dbb9f8bd185ee5f40770b5b53 /engine/delay.asm | |
| parent | 4e36d85ee966f8f22531183679549061263b2166 (diff) | |
| parent | 60dde1d03ed43de1e7ef777e4198963620c73958 (diff) | |
Merge pull request #188 from yenatch/split-common
recomment and split out a ton of common asm (bank 0)
Diffstat (limited to 'engine/delay.asm')
| -rw-r--r-- | engine/delay.asm | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/engine/delay.asm b/engine/delay.asm new file mode 100644 index 000000000..4e8b2147c --- /dev/null +++ b/engine/delay.asm @@ -0,0 +1,23 @@ +DelayFrame: ; 45a +; Wait for one frame + ld a, 1 + ld [VBlankOccurred], a + +; Wait for the next VBlank, halting to conserve battery +.halt + halt ; rgbasm adds a nop after this instruction by default + ld a, [VBlankOccurred] + and a + jr nz, .halt + ret +; 468 + + +DelayFrames: ; 468 +; Wait c frames + call DelayFrame + dec c + jr nz, DelayFrames + ret +; 46f + |