ref: d75a66cf7719a71c035155f6b531ded73f875e38 dir: /home/sine.asm/
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 homecall _Sine ret ; 1b1e