Xadd x86 instruction encoding

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Sep 26, 2017 - Exchange And Add (xadd) [486] 97. Exchange x86” in this manual, translates source files that are in assembly language format into object files Chapter 2 describes the instruction set mappings for the SunOS x86 processor. Chapter 3Apr 11, 2014 - An x86-64 instruction may be at most 15 bytes in length. It consists of the following components in the given order, where the prefixes are at the least-significant The x86 instruction set refers to the set of instructions that x86-compatible microprocessors POP, Pop data from stack, r/m = *SP++; POP CS (opcode 0x0F) works only on 8086/8088. XADD, eXchange and ADD, Exchanges the first operand with the second operand, then loads the sum of the two values into the Sep 28, 2019 - The destination operand can be a register or a memory location; the source operand is a register. In 64-bit mode, the instruction's default operation size is 32 bits. Using a REX prefix in the form of REX. This instruction can be used with a LOCK prefix to allow the instruction to be executed atomically. Encoding Real x86 Instructions; x86 Instructions Overview; x86 Instruction Format Reference; x86 Opcode Sizes; x86 ADD Instruction Opcode; Encoding x86 coder32 edition of X86 Opcode and Instruction Reference. 0F, C1, r, 04+, L, XADD, r/m16/32, r16/32, o..szapc, o..szapc, Exchange and Add