3.4.3多字节除法.txt

里面有好多的原码,大家都来下载.用asm编写的

MBCDD:
MOV	R0,#11H			
MOV	R7,#08H			
LOOP1:
MOV	@R0,#00H
INC		R0
DJNZ	R7,LOOP1
MOV	R0,#25H
MOV	R7,#04H
LOOP2:
MOV	@R0,#00H
INC		R0
DJNZ	LOOP2
MOV	R3,#10H				
LOOP0:
MOV	R4,#04H				
LOOP3:
MOV	R0,#21H			
MOV	R7,#08H				
CLR		C
LOOP4:
MOV	A,@R0
RLC		A
MOV	@R0,A
INC		R0
DJNZ	R7,LOOP4
DEC		R4
MOV	A,R4
JNZ		A,LOOP3
LOOP5:
MOV	R1,#25H			
MOV	R0,#2AH			
MOV	R7,#04H
CLR		C
LOOP6:
MOV	A,#9AH				
SUBB	A,@R0
ADD		A,@R1
DA		A					
MOV	@R1,A
INC		R0
INC		R1
CPL		C
DJNZ	R7, LOOP6 			
JC		C,LOOP6			
MOV	R0,#	11H				
INC		@R0,
SJMP	LOOP5
LOOP7:
MOV	R1,#25H				
MOV	R0,#2AH				
MOV	R7,#04H			
CLR		C
LOOP8:
MOV	A,@R1
ADDC	A,@R0
DA		A				
MOV	@R1,A
INC		R0
INC		R1
DJNZ	R7,LOOP8
DEC		R3
MOV	A,R3
JZ		A,LOOP11
MOV	R2,#04H				
LOOP9:
MOV	R0,#11H				
MOV	R7,#08H				
CLR		C
LOOP10:
MOV	A,@R0
RLC		A
MOV	@R0,A
INC		R0
DJNZ	R7,LOOP10
DEC		R2
MOV	A,R2
JNZ		A,LOOP9
SJMP	LOOP0
LOOP11:
RET