2.3.1双字节无符号数乘法.txt

里面有好多的原码,大家都来下载.用asm编写的

MULD: 
MOV 	A,R3 				
MOV 	B,R7 
MUL 	AB 
MOV 	R4,B 				
MOV 	R5,A 
MOV	A,R3 				
MOV 	B,R6 
MUL 	AB 
ADD 	A,R4 				
MOV 	R4,A 
CLR 	A 
ADDC 	A,B 
MOV 	R3,A 
MOV 	A,R2 				
MOV 	B,R7 
MUL 	AB 
ADD 	A,R4 				
MOV 	R4,A 
MOV 	A,R3 
ADDC 	A,B 
MOV 	R3,A 
CLR 	A 
RLC 	A 
XCH 	A,R2 				
MOV 	B,R6 
MUL 	AB 
ADD 	A,R3 				
MOV 	R3,A 
MOV 	A,R2 
ADDC 	A,B 
MOV 	R2,A 
RET