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authorentrpntr <entrpntr@gmail.com>2020-03-17 16:20:00 -0400
committerentrpntr <entrpntr@gmail.com>2020-03-17 16:20:00 -0400
commite67786a7a26ae7531301e928870b204043fb8a6a (patch)
tree579c9e876fa2cd46c13ecceed0e8f0358e347131 /engine/sine.asm
parentc248b30aa7487b51a9182a833b1db29f14a7267c (diff)
Cleanup of files for banks $02 and $03 for main.asm.
Diffstat (limited to 'engine/sine.asm')
-rw-r--r--engine/sine.asm40
1 files changed, 0 insertions, 40 deletions
diff --git a/engine/sine.asm b/engine/sine.asm
deleted file mode 100644
index e22d785a..00000000
--- a/engine/sine.asm
+++ /dev/null
@@ -1,40 +0,0 @@
-_Sine:: ; 8ac9 (2:4ac9)
- ld a, e
- and $3f
- cp $20
- jr nc, .negative
- call .GetSine
- ld a, h
- ret
-.negative
- and $1f
- call .GetSine
- ld a, h
- xor $ff
- inc a
- ret
-
-.GetSine: ; 8adf (2:4adf)
- ld e, a
- ld a, d
- ld d, $0
- ld hl, .SineWave
- add hl, de
- add hl, de
- ld e, [hl]
- inc hl
- ld d, [hl]
- ld hl, $0
-.loop
- srl a
- jr nc, .no_add
- add hl, de
-.no_add
- sla e
- rl d
- and a
- jr nz, .loop
- ret
-
-.SineWave:
- sine_table $100