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问 请问大虾，如何在MSP430中实现除法？ 答 1: 转摘可能是小龙网站的32位除16位,软件仿真通过
;---------------------------------------------------------------------------
DIVIDE ; Unsigned 32/16 divide R13 | R12 / R11 = R14
; Input: R13, R12, R10 is a working register
; Output: R14
;---------------------------------------------------------------------------
clr R14 ; Clear Accumulator Low
mov #17,R10 ; Initalize Loop Counter
DIV1 cmp R11,R13 ;
jlo DIV2 ;
sub R11,R13 ;
DIV2 rlc R14 ;
jc DIV4 ; Error: result > 16 bits
dec R10 ; Decrement loop counter
jz DIV4 ; Is 0: terminate w/o err
rla R12 ;
rlc R13 ;
jnc DIV1 ;
sub R11,R13 ;
setc ;
jmp DIV2 ;
DIV4 ret ; Error indication in C 答 2: 调用430的浮点库,很方便的!
网上有浮点库的下载!