WebViewed 483 times 2 The goal here is to find GCD for two 16-bit numbers stored in little-endian notation. The numbers are stored in the following memory cells: first number: 0x3000-0x3001 seconds number: 0x4000-0x4001 the result should go into: 0x5000-0x5001 The following example works for 8-bit numbers: WebJan 14, 2024 · Instead of first counting in a couple of registers and then storing those to memory, you can directly count in memory. The JMP after will use 2 cycles, but you can replace it by a compensating DEC 40h that will only use 1 cycle.
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WebMay 20, 2024 · inc r1 inc r2 inc r3 jnc go inc r4 go: djnz r0,loop mov a,r4 inc dptr movx @dptr,a sjmp $ end. 8051 assembly program for multiplication of two 8 bit numbers; org 0000h sjmp 30h org 30h mov r0,#40h mov a,@r0 inc r0 mov b,@r0 mul ab inc r0 mov @r0,a inc r0 mov @r0,b sjmp $ end. 8051 assembly program for division of two 8 bit numbers; … http://www.qacn.net/viewchapter.aspx?topicid=142&chapterid=2704 fishyfins.com
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WebMar 13, 2024 · 已知40h、41h和50h、51h单元中存有两个16位无符号数1234h、5678h(低位在前)。 逐条分析每条指令的作用与执行结果。 MOV R0,#40H MOV R1,#50H … Webinc b djnz r1,zj3 ;再显示下一个 lcall beep keyend: call keyin cpl a anl a, #07h cjne a, #00h, keyend mov dptr,#tab2 mov a,b movc a,@a+dptr mov @r0,a lcall display ;调用显示子程序 inc b djnz r1,பைடு நூலகம்j1 lcall beep ljmp keyend hc3: mov b,#0 mov r1,#05h zj3: mov r0,#led0 mov dptr,#tab3 sjmp main keyin:movp0,#0 ... WebDec 22, 2010 · START_ADDR EQU 40H END_ADDR EQU 49H DEST EQU 50H ORG 0000H MAIN: MOV RO, #START LOOP: MOV A, R0, MOV R1, A INC R1 MOV A, @R0 CLR C SUBB A, @R1 JC NEXT NEXT: SJMP OVERFLY MOV A, @R0 MOV @R1, A OVERFLY: INC R0 CJNE R0, #END_ADDR - START_ADDR + 1, LOOP MOV A, @END_ADDR MOV @DEST, A Note:The … candy stores in plymouth mi