Push ax pop bx
WebJun 23, 2024 · 我们先简单提一下栈的概念:栈是一种具有特殊访问形式的存储空间,特殊性在于数据后进先出。8086提供入栈(PUSH)和出栈(POP)指令:比如push ax表示将AX寄存 … Webpush dx mov bx, 0 ; bx <- 0 于是, es:bx = (BaseOfLoader - 100):00 add ax, SectorNoOfFAT1 ; 此句之后的 ax 就是 FATEntry 所在的扇区号 mov cl, 2 call ReadSector ; 读取 FATEntry 所在的扇区, 一次读两个, 避免在边界 ; 发生错误, 因为一个 FATEntry 可能跨越两个扇区 pop dx add bx, dx mov ax, [es:bx] cmp byte [bOdd], 1 jnz LABEL_EVEN_2 shr ax, 4 LABEL_EVEN_2 ...
Push ax pop bx
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Web题目. 已知 (SP)=2000H,指令PUSH AX 执行后(AX)=? 扫码下载作业帮. 搜索答疑一搜即得. 答案解析. 查看更多优质解析. 解答一. 举报. 执行PUSH指令时,先执行SP-2,然后把AX赋给SP, … WebMar 10, 2024 · 汇编语言pop和push的自我记录学习 一、 push ax 表示将寄存器ax中的数据送入栈中, pop ax 表示从栈顶取出数据送入ax 1.栈操作都是以一个字为单位进行的(1字 = …
WebMar 3, 2024 · compare_strs_si_bx: push si ; сохраняем все нужные в функции регистры на стеке push bx push ax comp: mov ah, [bx] ; напрямую регистры сравнить не получится, … WebApr 22, 2016 · 实验二 算术逻辑运算及移位操作 一.实验任务 1.实验程序段及结果表格如表: 标志位 CF ZF SF OF PF AF 程序段1: MOV AX, 1018H MOV SI, 230AH ADD AX, SI ADD …
WebDec 13, 2024 · 设堆栈指针sp的初值为7300h,ax=8538h,bx=1453h,试问 (1)执行指令pushax后,sp= (2)再执行PUSH BX及POP AX后;SP= AX= 1个回答 Web50: mov AX,100 51: mov BX,20 52: add AX,BX 53: 54: ; clear trap flag to end single stepping 55: pushf 56: pop AX ; copy flags into AX 57: and AX,0FEFFH ; clear trap flag bit (TF = 0) …
WebMar 3, 2024 · compare_strs_si_bx: push si ; сохраняем все нужные в функции регистры на стеке push bx push ax comp: mov ah, [bx] ; напрямую регистры сравнить не получится, cmp [si], ah ; поэтому переносим первый символ в ah jne not_equal ; если символы не совпадают, то ...
WebThis be regular where you store values while calling another function: you can't store values in the scratch registers, because the function could change them. Using the Stack in … hanging upside down sit up barWebApr 13, 2024 · data segment string1 db 's= $' data ends code segment start: mov ax,data mov ds,ax mov ax,2 mov bx,ax inc bx mov cx,15 mov dx,1 for: imul bl cmp al,200 ja outside add dx,ax mov ax,dx mov ax,bx inc bx loop for outside: mov ax,dx push ax lea dx,string1 mov ah,09h int 21h pop ax call print mov ax, 4c00h int 21h crlf: push ax push dx mov dl,0ah … hanging valley bbc bitesizehttp://www.iotword.com/9418.html hanging tv on fireplaceWebJun 6, 2009 · push ax后是把ax的值放入栈中,sp减一个字的长度也就是2个字节,变成1ffeh,ax,bx不变。 push bx也是同义,sp变为1ffch,ax,bx不变。 pop ax是把当前ss:sp … hanging up ethernet cablesWebSep 11, 2024 · code segment assume cs:code start:mov dx,283h mov al,80h out dx,al mov cx,16 mov al,00h word 文档 l1:movdx,280h out dx,al call delay inc al loop l1 mov ah,4ch int 21h delay proc near push cx mov bx,299h for1:mov cx,0ffffh for2:loop for2 dec bx jnz for1 pop cx ret delay endp code ends end start 实验 14 8253 编程测试实验 实验内容:8253 方 … hanging up the towel meaningWebprocessor organization. processor organization instruction formats (zero, one, two and three address instruction) computer perform task on the basis of hanging upside down exercise equipmentWebThis be regular where you store values while calling another function: you can't store values in the scratch registers, because the function could change them. Using the Stack in AArch64: Implemented Push the Pop. The easiest and most common ways to use and piles is with the dedicated "push" and "pop" instructions. hanging turkey craft