diff options
Diffstat (limited to 'home/sine.asm')
| -rw-r--r-- | home/sine.asm | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/home/sine.asm b/home/sine.asm new file mode 100644 index 00000000..e1552db2 --- /dev/null +++ b/home/sine.asm @@ -0,0 +1,21 @@ +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 |