MCS-51单片机应用子程序：4.3.5双字节十六进制小数转换成双字节BCD码小数

HBD2: MOV R4,#4 HBD3: MOV A,R3 MOV B,#10 MUL AB MOV R3,A MOV R5,B MOV A,R2 MOV B,#10 MUL AB ADD A,R5 MOV R2,A CLR A ADDC A,B PUSH ACC DJNZ R4,HBD3 POP ACC MOV R3,A POP ACC SWAP A ORL A,R3 MOV R3,A POP ACC MOV R2,A POP ACC SWAP A ORL A,R2 MOV R2,A RET