ref: bf074f359886707d2ffb2e0b525b03dc7af0fe29 dir: /home/sine.asm/
Cosine:: ; 1b0f ; Return d * cos(a) in hl add %010000 ; 90 degrees Sine:: ; 1b11 ; Return d * sin(a) in hl ; a is a signed 6-bit value. ld e, a homecall _Sine ret ; 1b1e