Web2024-04-14 在单片机中djnz r2,s是什么意思 5 2012-10-15 单片机的DJNZ 指令和cy位是什么意思 14 2016-11-23 问大家一个单片机的问题,就是 DJNZ R0,LPO 是什么... 1 2014-10-22 请问单片机语句DJNZ R3,$是什么意思或者$是什么意思 17 2013-05-22 51单片机DJNZ指令循环次数问题 64 WebQuestion 1: Find the time delay for the delay subroutine shown below if the system has an 8051 with frequency of 12 MHz: delay: mov r3, #100 back: mov r2, #200 again: mov r5, #250 here: nop nop djnz r5, here djnz r2, again djnz 13, back ret Question 2: Find the number of times the following loop is performed: mov r6, #200 bck: mov r5, #100 here:djnz r5, here …
Solved Question 1: Find the time delay for the delay Chegg.com
Web- Lệnh DJNZ: Giảm và nhảy khi giá trị khác 0. Lệnh DJNZ thường dùng để tạo vòng lặp và có dạng sau: ... djnz R5,lap_delay_1 ret. Note: FFFF = 65535 D8F0h= 55536=-10000dec. Delay = 65536-55536 =10000 micro giay=10ms WebJan 27, 2024 · 文章标签: jnz和djnz. 版权. DJNZ是单片机汇编的一条指令,是循环转移指令。. eg: DJNZ R6, Loop 意思每转移到标号Loop一次R6就减1;直到R6=0时执行下一条 … mcgavin scotch
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WebAug 28, 2015 · 用一个djnz的循环。org0000hmovr0,#1fh;r0指向20h单元movr5,#04h;四个数loop:incr0mov@r0,#0f0h写入djnzr5,loop和m+1单元存有两个bcd数,将它们合并到m单元中,编写程序完成。 ... org 0000h mov r0,#2fh 指向前一个单元mov r5,#0ah ;循环 10 loop:inc r0 add a,@r0 djnz r5,loop mov 50h,a end6.假定8 位二 ... WebDescription: DJNZ decrements the value of register by 1. If the initial value of register is 0, decrementing the value will cause it to reset to 255 (0xFF Hex). If the new value of … mcgavin horvath