;********************************************************************** ;SMALL 8 BIT SQUARE ROOT ; ;Author: Nikolai Golovchenko <golovchenko at mail.ru> ;Idea: Scott Dattalo <www.dattalo.com> ;"Hint: n^2 = sum of the first n odd integers.(e.g 9 = 3*3 = 1 + 3 + 5)" ;Date: February 16, 2000 ; ;Input: x ;Output: y ;ROM - 10 ;RAM - 2 ;Timing, including call and return ;Best case: 6+9=15 cycles ;Worst case: 6+2+8*16-2+1=135 cycles ;********************************************************************** Sqrt8s mov W, #-1 mov y, W Sqrt8s1 inc y inc y mov W, y sub x, W snb C jmp Sqrt8s1 rr y ret ;**********************************************************************
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file: /Techref/scenix/lib/math/sqrt/sqrt8ngsd_sx.htm, 1KB, , updated: 2004/6/10 13:40, local time: 2024/11/8 19:41,
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