Intel® 64 and IA-32 Architectures Software Developer’s Manual Volume 2 (2A, 2B, 2C & 2D): Instruction Set Reference, A-Z NOTE: The Intel 64 and IA-32 Architectures Software Developer's Manual consists of three volumes: Basic Architecture, Order Number 253665; Instruction Set Reference A-Z, Order Number 325383;

Intel Instruction Set (gas) •These slides provide the gas format for a subset of the Intel processor instruction set, including: –Operation Mnemonic –Name of Operation –Syntax –Operation –Legal Operands –Examples –Description –Effect on Flag Bits

Instruction Set Extensions Introduction in Intel 64 and IA-32 Processors”. Added Section 1.5 “Detection of Intel® Memory Encryption Technologies (Intel® MKTME) Instructions”. • CPUID instruction updated with PCONFIG and WBNOINVD details. • CPUID instruction updated with additional details on leaf 07H: Intel® Xeon Phi™ only features identified and listed.

Intel Architecture Software Developer’s Manual Volume 2: Instruction Set Reference NOTE: The Intel Architecture Software Developer’s Manual consists of three volumes: Basic Architecture, Order Number 243190; Instruction Set Reference, Order Number 243191; and the System Programming Guide, Order Number 243192.

i~e McS@-51PROGRAMMER’SGUIDEAND INSTRUCTION SET Table 10.8051 InetruotionSat Summary (Continued) Mnemonic Deaoription ~we o:acw~r tRITNWTIC OPERATIONS(Continued) NC DPTR IncrementDate 1 24 Pointer dUL AB MultiPiyA& B 1 48)IV AB Ditie AbyB 1 48)A A DecimelAdjuet 1 12 Accumulator.OGICALOPERATtONS \NL A,Rn ANDRegieterto 1 12 …

Instruction Set Summary 30 This chapter lists all the instructions in the Intel Architecture instruction set, divided into three functional groups: integer, floating-point, and system. It also briefly describes each of the integer instructions. Brief descriptions of the floating-point instructions are given in “Floating-Point Unit”; brief

The Sign flag is set when the destination operand is negative The flag is clear when the destination is 0 negative. The flag is clear when the destination is positive. mov cx, sub cx,1 ; CX = -1, SF = 1 add cx 2add cx,2 ;CX=1 SF=0; CX = 1, SF = 0 Thfl fhd hhbhe sign flag is a copy of the destination's highest bit: mov al,0

x86 Instruction Set Architecture (ISA) .....1 Glossary of Terms......................................................................................................................2 32-/64-bit x86 Instruction Set Architecture Specification...................................................2