diff options
| author | Bryan Bishop <kanzure@gmail.com> | 2013-09-09 15:56:49 -0500 |
|---|---|---|
| committer | Bryan Bishop <kanzure@gmail.com> | 2013-09-09 15:56:49 -0500 |
| commit | 37e1aa4e8ec2400ba97db4c767bd3a9fcd43a1ac (patch) | |
| tree | 68cb6273ed885d69512c4ba099298aad1534c6e4 /common/sine.asm | |
| parent | 35324ae43f845f4ce8346ef05fdf1bed8bed1e28 (diff) | |
| parent | 705e6824687ed247a28cfbaedd47bf33bd1da32a (diff) | |
Merge branch 'yenatch/split-predefs-specials-stds' into fix-split-predefs-specials-stds
https://github.com/kanzure/pokecrystal/pull/198
Diffstat (limited to 'common/sine.asm')
| -rw-r--r-- | common/sine.asm | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/common/sine.asm b/common/sine.asm new file mode 100644 index 000000000..09d06ca89 --- /dev/null +++ b/common/sine.asm @@ -0,0 +1,22 @@ +Cosine: ; 1b0f +; Return d * cos(a) in hl + add $10 ; 90 degrees + +Sine: ; 1b11 +; Return d * sin(a) in hl +; a is a signed 6-bit value. + + ld e, a + + ld a, [hROMBank] + push af + ld a, BANK(_Sine) + rst Bankswitch + + call _Sine + + pop af + rst Bankswitch + ret +; 1b1e + |