Z80 Routines:Math:Square root - WikiTISize Optimization This version is size optimized, it compares every perfect square against HL until a square that is larger is found. Obviously slower, but does get the job done in only 12 bytes. ;------------------------------- ;Square Root ;Inputs: ;HL = number to be square rooted ;Outputs: ;A = square root sqrt: ld a,$ff ld de,1 sqrtloop: inc a dec e dec de add hl,de jr c,sqrtloop ret Small and
