AMD 4.4.5 user manual General Purpose Instructions, 189

	AMD Confidential
User Manual	November 21st, 2008

∙+i – Specifies an x87 floating-point stack operand, ST(i). The value is used only with x87 floating-point instructions. It is added to the hexadecimal byte on the left, forming a one-byte opcode. Valid values range from 0 to 7.

A.6.2 General Purpose Instructions

This chapter describes the function, mnemonic syntax, and opcodes that the simulator simulates. General-purpose instructions are used in basic software execution. Most of these instructions load, store, or operate on data location in the general-purpose registers (GPRs), in memory, or in both. The remaining instructions are used to alter the sequential flow of the program by branching to other locations within the program, or to entirely different programs.

				Instruction
										Supported
	Mnemonic			Opcode			Description
AAA		37			Create an unpacked BCD number.
AAD			D5		Adjust two BCD digits in AL and AH.
AAM			D4		Create	a pair	of unpacked BCD values
					in AH and AL.
AAS			3F		Create	an unpacked		BCD	number from
					the contents of the AL register.
ADC AL,imm8		14		ib	Add imm8 to AL + CF.
ADC AL,imm16		14		iw	Add imm16 to AX + CF.
ADC EAX,imm32		15		id	Add imm32 to EAX + CF.
ADC RAX,imm32		15		id	Add sign-ext. imm32 to RAX + CF.
ADC reg/mem8,imm8		80		/2 ib	Add imm8 to reg/mem8 + CF.
ADC reg/mem16,imm16		81		/2 iw	Add imm16 to reg/mem16 + CF.
ADC reg/mem32,imm32		81		/2 id	Add imm32 to reg/mem32 + CF.
ADC reg/mem64,imm32		81		/2 id	Add sign-ext.		imm32	to	reg/mem64 +
					CF.
ADC reg/mem16,imm8		83		/2 ib	Add sign-ext. imm8 to reg/mem16 + CF.
ADC reg/mem32,imm8		83		/2 ib	Add sign-ext. imm8 to reg/mem32 + CF.
ADC reg/mem64,imm8		83		/2 ib	Add sign-ext. imm8 to reg/mem64 + CF.
ADC reg/mem8,reg8		10		/r	Add reg8 to reg/mem8 + CF.
ADC reg/mem16,reg16		11		/r	Add reg16 to reg/mem16 + CF.
ADC reg/mem32,reg32		11		/r	Add reg32 to reg/mem32 + CF.
ADC reg/mem64,reg64		11		/r	Add reg64 to reg/mem64 + CF.
ADC reg8,reg/mem8		12		/r	Add reg/mem8 to reg8 + CF.
ADC reg16,reg/mem16		13		/r	Add reg/mem16 to reg16 + CF.
ADC reg32,reg/mem32		13		/r	Add reg/mem32 to reg32 + CF.
ADC reg64,reg/mem64		13		/r	Add reg/mem64 to reg64 + CF.
ADD AL,imm8		04		ib	Add imm8 to AL.
ADD AX,imm16		05		iw	Add imm16 to AX.
ADD EAX,imm32		05		id	ADD imm32 to EAX.
ADD RAX,imm64		05		id	ADD imm64 to RAX.
ADD reg/mem8,imm8		80		/0 ib	Add imm8 to reg/mem8.
ADD reg/mem16,imm16		81		/0 iw	Add imm16 to reg/mem16.
ADD reg/mem32,imm32		81		/0 id	Add imm32 to reg/mem32.
ADD reg/mem64,imm32		81		/0 id	Add sign-ext. imm32 to reg/mem64.
ADD reg/mem16,imm8		83		/0 ib	Add sign-ext. imm8 to reg/mem16.
ADD reg/mem32,imm8		83		/0 ib	Add sign-ext. imm8 to reg/mem32.
ADD reg/mem64,imm8		83		/0 ib	Add sign-ext. imm8 to reg/mem64.
ADD reg/mem8,reg8		00		/r	Add reg8 to reg/mem8.
ADD reg/mem16,reg16		01		/r	Add reg16 to reg/mem16.

Appendix A 189