MOV A,AD-NUM-BCD-H-0 ANL A,#0F0H SWAP A MOV B,#10 MUL AB.功能,

MOV A,AD_NUM_BCD_H_0 ANL A,#0F0H SWAP A MOV B,#10 MUL AB.功能,为什么是这样写,为什么乘以10mov a,AD_NUM_BCD_H_0anl a,#0F0Hswap amov b,#10mul abmov r0,amov a,AD_NUM_BCD_H_0anl a,#0FHadd a,r0mov r0,amov a,AD_NUM_BCD_H_1anl a,#0F0Hswap amov b,#10mul abmov r1,amov a,AD_NUM_BCD_H_1anl a,#0FHadd a,r1add a,r0mov r2,aadd a,AD_NUM_BCD_H_1mov r2,a