IDIV — Signed Divide - felixcloutier.com
IDIV is an instruction that divides a signed value by another value and stores the quotient and remainder in registers. Learn the syntax, operands, results, flags, and exceptions of IDIV in different modes and sizes.
xHelp for qEditor.exe - The MASM Forum
2012年8月2日 · Here is a plugin for qEditor, based on the xHelp app described here. Basically, you can select text in qEditor, e.g. invoke SendMessage, hEdit, ... then press Alt IX and, voilà, a list of matches pops up. Other example: Select string array, press Alt IX and see 14 entries from 5 different *.chm files that contain both the words string and array.
What is signed division (idiv) instruction? - Stack Overflow
2019年1月2日 · idiv divides edx:eax by the explicit source operand. See Intel's instruction manual entry. Since edx is 0, edx:eax is a positive number. You are dividing 4294901760 by -61184, giving -70196 with a remainder of 29696.
X86 assembly - Handling the IDIV instruction - Stack Overflow
As you have signed variables, you need to sign extend rax to rdx:rax. There is a specific instruction for this, cqto (convert quad to oct) in AT&T and cqo in Intel syntax. AFAIK newer versions of gas accept both names.
CS:APP example uses idivq with two operands? - Stack Overflow
The only machine encoding of idiv is idiv r/m (felixcloutier.com/x86/idiv), with the RDX:RAX operand implicit. Interesting (and weird) that GAS / AT&T syntax allows you to optionally specify part of the implicit operand.
X86汇编MUL、IMUL、DIV、IDIV、CBW、CWD、CDQ指令简介
IDIV指令，有符号数除法. 有符号数除法和无符号除法几乎一样，唯一不同点就是在执行除法之前，必须对被除数进行符号扩展。 符号扩展指令CBW、CWD、CDQ. cbw、cwd、cdq指令分别将al、ax、eax扩展到ax、dx:ax、edx:eax;
[Assembly x86] How does idiv work? : r/learnprogramming
idiv divides rdx:rax by the specified divisor. The rdx:rax is fixed, idiv always uses that pair of registers for the dividend. Your lines 26 and 27 are already setting up rdx:rax correctly.
X86-assembly/Instructions/idiv - aldeid
2015年11月28日 · The idiv instruction divides the contents of the 64-bit integer EDX:EAX by the specified operand value. The quotient result of the division is stored into EAX; The remainder is placed in EDX. Syntax idiv <reg32> idiv <mem> Examples
Into the Void: x86 Instruction Set Reference - GitHub Pages
Divides (signed) the value in the AX, DX:AX, or EDX:EAX registers (dividend) by the source operand (divisor) and stores the result in the AX (AH:AL), DX:AX, or EDX:EAX registers. The source operand can be a general-purpose register or a memory location.
x86汇编_DIV / IDIV除法指令_笔记53 - CSDN博客
2022年9月24日 · 本文介绍了x86汇编中的DIV和IDIV指令，用于执行无符号和有符号的32位和64位除法，以及相关的符号扩展指令。给出了多个示例代码和运行结果，说明了除法指令的格式和用法。
- 某些结果已被删除