;********************************************************************** ;by Nikolai Golovchenko ;8 bit SQARE ROOT ;ACCB0 input/output ;TEMPB0, TEMPB1 used for temporary storage ;3+16*4-2+5=70 cycles execution time ;20 words of program memory ;3 bytes of RAM ;********************************************************************** Sqrt8 mov W, #$40 mov TEMPB1, W clr TEMPB0 sqrt8a mov W, TEMPB1 or W, TEMPB0 mov W, ACCB0-w snb C mov ACCB0, W rr TEMPB0 mov W, TEMPB1 snb TEMPB0.7 or TEMPB0, W clrb TEMPB0.7 rr TEMPB1 rr TEMPB1 sb TEMPB1.7 jmp sqrt8a mov W, TEMPB0 mov ACCB0, W ret ;********************************************************************** ;Last updated 15Nov99
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