XOP instruction set extension

Instructions

Mnemonics with at least one form in XOP. Each page lists all forms of the mnemonic, including those of other extensions.

Mnemonic	Summary	Forms
VFRCZPD	Extracts the fractional part of each packed double of an XMM or YMM operand, exactly; XOP.	4
VFRCZPS	Extracts the fractional part of each packed single of an XMM or YMM operand, exactly; XOP.	4
VFRCZSD	Extracts the fractional part of the low double of an XMM register or memory, exactly; XOP.	2
VFRCZSS	Extracts the fractional part of the low single of an XMM register or memory, exactly; XOP.	2
VPCMOV	Takes each bit from the first or the second source as the matching bit of a third source is set or clear; XOP.	6
VPCOMB	Compares packed signed bytes by the predicate an immediate selects, such as less than (VPCOMLTB), into all-ones or all-zeros bytes; XOP.	2
VPCOMD	Compares packed signed doublewords by the predicate an immediate selects, into all-ones or all-zeros doublewords; XOP.	2
VPCOMQ	Compares packed signed quadwords by the predicate an immediate selects, into all-ones or all-zeros quadwords; XOP.	2
VPCOMUB	Compares packed unsigned bytes by the predicate an immediate selects, into all-ones or all-zeros bytes; XOP.	2
VPCOMUD	Compares packed unsigned doublewords by the predicate an immediate selects, into all-ones or all-zeros doublewords; XOP.	2
VPCOMUQ	Compares packed unsigned quadwords by the predicate an immediate selects, into all-ones or all-zeros quadwords; XOP.	2
VPCOMUW	Compares packed unsigned words by the predicate an immediate selects, into all-ones or all-zeros words; XOP.	2
VPCOMW	Compares packed signed words by the predicate an immediate selects, into all-ones or all-zeros words; XOP.	2
VPERMIL2PD	Picks each double from either of two sources, or zero, by selectors in a third source and an immediate; XOP.	6
VPERMIL2PS	Picks each single from either of two sources, or zero, by selectors in a third source and an immediate; XOP.	6
VPHADDBD	Adds each group of four signed bytes into a signed doubleword; XOP.	2
VPHADDBQ	Adds each group of eight signed bytes into a signed quadword; XOP.	2
VPHADDBW	Adds each pair of adjacent signed bytes into a signed word; XOP.	2
VPHADDDQ	Adds each pair of adjacent signed doublewords into a signed quadword; XOP.	2
VPHADDUBD	Adds each group of four unsigned bytes into a doubleword; XOP.	2
VPHADDUBQ	Adds each group of eight unsigned bytes into a quadword; XOP.	2
VPHADDUBW	Adds each pair of adjacent unsigned bytes into a word; XOP.	2
VPHADDUDQ	Adds each pair of adjacent unsigned doublewords into a quadword; XOP.	2
VPHADDUWD	Adds each pair of adjacent unsigned words into a doubleword; XOP.	2
VPHADDUWQ	Adds each group of four unsigned words into a quadword; XOP.	2
VPHADDWD	Adds each pair of adjacent signed words into a signed doubleword; XOP.	2
VPHADDWQ	Adds each group of four signed words into a signed quadword; XOP.	2
VPHSUBBW	Subtracts the high signed byte from the low one of each word, into signed words; XOP.	2
VPHSUBDQ	Subtracts the high signed doubleword from the low one of each quadword, into signed quadwords; XOP.	2
VPHSUBWD	Subtracts the high signed word from the low one of each doubleword, into signed doublewords; XOP.	2
VPMACSDD	Multiplies packed signed doublewords and adds a third source to the products, keeping the low 32 bits without saturation; XOP.	2
VPMACSDQH	Multiplies the odd signed doublewords of two sources into quadwords and adds the quadwords of a third source; XOP.	2
VPMACSDQL	Multiplies the even signed doublewords of two sources into quadwords and adds the quadwords of a third source; XOP.	2
VPMACSSDD	Multiplies packed signed doublewords and adds a third source to the products, with signed saturation to doublewords; XOP.	2
VPMACSSDQH	Multiplies the odd signed doublewords of two sources and adds a third source's quadwords, with signed saturation; XOP.	2
VPMACSSDQL	Multiplies the even signed doublewords of two sources and adds a third source's quadwords, with signed saturation; XOP.	2
VPMACSSWD	Multiplies the odd signed words of two sources and adds a third source's doublewords, with signed saturation; XOP.	2
VPMACSSWW	Multiplies packed signed words and adds a third source's words to the products, with signed saturation; XOP.	2
VPMACSWD	Multiplies the odd signed words of two sources and adds a third source's doublewords, without saturation; XOP.	2
VPMACSWW	Multiplies packed signed words and adds a third source's words to the products, keeping the low 16 bits; XOP.	2
VPMADCSSWD	Multiplies packed signed words, adds adjacent products and a third source's doublewords, with signed saturation; XOP.	2
VPMADCSWD	Multiplies packed signed words, adds adjacent products and a third source's doublewords, without saturation; XOP.	2
VPPERM	Picks each byte of the result from 32 bytes of two sources and optionally inverts, reverses or replaces it, by selectors in a third; XOP.	3
VPROTB	Rotates each byte left or right by a signed count from an immediate or the matching byte of a register or memory; XOP.	5
VPROTD	Rotates each doubleword left or right by a signed count from an immediate or a register or memory; XOP.	5
VPROTQ	Rotates each quadword left or right by a signed count from an immediate or a register or memory; XOP.	5
VPROTW	Rotates each word left or right by a signed count from an immediate or a register or memory; XOP.	5
VPSHAB	Shifts each signed byte arithmetically left or right by the signed count in the matching byte of a second source; XOP.	3
VPSHAD	Shifts each signed doubleword arithmetically left or right by a signed count per element; XOP.	3
VPSHAQ	Shifts each signed quadword arithmetically left or right by a signed count per element; XOP.	3
VPSHAW	Shifts each signed word arithmetically left or right by a signed count per element; XOP.	3
VPSHLB	Shifts each byte logically left or right by the signed count in the matching byte of a second source; XOP.	3
VPSHLD	Shifts each doubleword logically left or right by a signed count per element; XOP.	3
VPSHLQ	Shifts each quadword logically left or right by a signed count per element; XOP.	3
VPSHLW	Shifts each word logically left or right by a signed count per element; XOP.	3

CPUID and processors

XED splits XOP into 1 ISA set. Software can use a form when the processor reports every CPUID bit of one alternative of the form's ISA set.

XED ISA sets of XOP. Alternatives are separated by “or”; processors follow XED’s chip model, whose AMD processors end with Zen 2, and the CPU data of this site for Zen 3 to Zen 6.

ISA set	CPUID	Processors
`XOP` XOP	XOP `CPUID.80000001H:ECX[11]` XOP	Bulldozer, Piledriver

Instructions

CPUID and processors

Sources