萬用表的課程設(shè)計(編輯修改稿)
2025-02-12 09:07 本頁面
【文章內(nèi)容簡介】 r1 mov @r1,00h inc r1 mov @r1,00h inc r1 mov @r1,0FFh call DIVD4 。除以255 mov r1,38h mov @r1,00h inc r1 mov @r1,00h inc r1 mov @r1,00h inc r1 mov @r1,0Ah call DIVD4 mov 43h,33h call DIVD4 mov 42h,33h call DIVD4 mov 41h,33h mov r0,40h mov @r0,00h inc r0 mov A,41h mov DPTR,SEGMENT7 movc A,@A+DPTR orl A,80h mov @r0,A inc r0 mov A,42h mov DPTR,SEGMENT7 movc A,@A+DPTR mov @r0,A inc r0 mov A,43h mov DPTR,SEGMENT7 movc A,@A+DPTR mov @r0,A retADAT: mov B,A mov A,0B6h clr C 。以下根據(jù)范圍設(shè)置數(shù)值以防溢出 subb A,B jc LARGERA mov A,B subb A,16h jc LESSA ajmp MIDDLEALARGERA: mov A,0B6h ajmp CALCULATEALESSA: mov A,16h ajmp CALCULATEAMIDDLEA: mov A,BCALCULATEA: mov r2,0C3h mov r3,50h mov r6,00h mov r7,A call MULD2 。乘以50000 clr C mov A,r5 subb A,70h 。以下減去102000 mov r5,A mov 37h,A mov A,r4 subb A,8Eh mov r4,A mov 36h,A mov A,r3 subb A,01h mov r3,A mov 35h,A mov A,r2 subb A,00h mov r2,A mov 34h,A mov r0,30h mov r1,38h mov @r1,00h inc r1 mov @r1,01h inc r1 mov @r1,5Eh inc r1 mov @r1,0A0h call DIVD4 。除以89760 mov r1,38h mov @r1,00h inc r1 mov @r1,00h inc r1 mov @r1,00h inc r1 mov @r1,0Ah mov DPTR,SEGMENT7 call DIVD4 mov A,33h movc A,@A+DPTR mov 43h,A call DIVD4 mov A,33h movc A,@A+DPTR mov 42h,A call DIVD4 mov A,33h movc A,@A+DPTR cjne A,3Fh,NOTEQU mov A,00hNOTEQU: mov 41h,A mov 40h,00h RETrdat: mov R2,00h mov R3,A mov R6,03h mov R7,0E8h call MULD2 。乘以1000 mov r0,30h mov r1,34h mov A,R2 mov @r1,A inc r1 mov A,R3 mov @r1,A inc r1 mov A,R4 mov @r1,A inc r1 mov A,R5 mov @r1,A inc r1 mov @r1,00h inc r1 mov @r1,00h inc r1 mov @r1,00h inc r1 mov @r1,0FFh call DIVD4 。除以255 mov r1,38h mov @r1,00h inc r1 mo
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