发布时间 : 星期二 文章倒车雷达的设计最完整的毕业设计更新完毕开始阅读
倒车雷达的设计
MOV A, R7
ADDC A, #00H MOV R7, A
MULLOOP2: DJNZ 46H, MULLOOP1 RET ;
;**************************************************** ;* 四字节/两字节无符号数除法程序 *
;**************************************************** ;R7R6R5R4/R3R2=R7R6R5R4(商)...R1R0(余数) ;
DIV4BY2: MOV 46H, #20H MOV R0, #00H MOV R1, #00H DIVLOOP1: MOV A, R4 RLC A MOV R4, A MOV A, R5 RLC A MOV R5, A MOV A, R6 RLC A MOV R6, A MOV A, R7 RLC A MOV R7, A MOV A, R0 RLC A MOV R0, A MOV A, R1 RLC A MOV R1, A CLR C
MOV A, R0 SUBB A, R2 MOV B, A MOV A, R1
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沈阳工程学院毕业设计(论文)
SUBB A, R3 JC DIVLOOP2 MOV R0, B MOV R1, A DIVLOOP2: CPL C
DJNZ 46H, DIVLOOP1 MOV A, R4 RLC A MOV R4, A MOV A, R5 RLC A MOV R5, A MOV A, R6 RLC A MOV R6, A MOV A, R7 RLC A MOV R7, A RET ;
delay_250:
push psw push 07h mov r7,#0ffh delay_250_1: nop nop nop nop
djnz r7,delay_250_1 pop 07h pop psw ret
;----------------------- END
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