Directives Reference

x64

.ALLOCSTACK	.ENDPROLOG	PROC
.PUSHFRAME	.PUSHREG	.SAVEREG
.SAVEXMM128	.SETFRAME

Code Labels

ALIGN	EVEN
LABEL	ORG

Conditional Assembly

ELSE	ELSEIF	ELSEIF2
IF	IF2	IFB/IFNB
IFDEF/IFNDEF	IFDIF/IFDIF[[I]]	IFE
IFIDN/IFIDN[[I]]

Conditional Control Flow

.BREAK	.CONTINUE	.ELSE
.ELSEIF	.ENDIF	.ENDW
.IF	.REPEAT	.UNTIL
.UNTILCXZ	.WHILE

Conditional Error

.ERR	.ERR2	.ERRB
.ERRDEF	.ERRDIF/.ERRDIF[[I]]]	.ERRE
.ERRIDN/.ERRIDN[[I]]	.ERRNB	.ERRNDEF
.ERRNZ

Data Allocation

ALIGN	BYTE/SBYTE	DWORD/SDWORD
EVEN	FWORD	LABEL
ORG	QWORD	REAL4
REAL8	REAL10	TBYTE
WORD/SWORD

Equates

Listing Control

.CREF	.LIST	.LISTALL
.LISTIF	.LISTMACRO	.LISTMACROALL
.NOCREF	.NOLIST	.NOLISTIF
.NOLISTMACRO	PAGE	SUBTITLE
.TFCOND	TITLE

Macros

ENDM	EXITM	GOTO
LOCAL	MACRO	PURGE

Miscellaneous

ALIAS (MASM)	ASSUME	COMMENT
ECHO	END	.FPO
INCLUDE	INCLUDELIB	MMWORD
OPTION	POPCONTEXT	PUSHCONTEXT
.RADIX	.SAFESEH	XMMWORD

Procedures

ENDP	INVOKE	PROC
PROTO

Processor

.186	.286	.286P
.287	.386	.386P
.387	.486	.486P
.586	.586P	.686
.686P	.K3D	.MMX
.XMM	.8086	.8087
.NO87

Repeat Blocks

ENDM	FOR	FORC
GOTO	REPEAT	WHILE

Scope

COMM	EXTERN	EXTERNDEF
INCLUDELIB	PUBLIC

Segment

.ALPHA	ASSUME	.DOSSEG
END	ENDS	GROUP
SEGMENT	.SEQ

Simplified Segment

.CODE	.CONST	.DATA
.DATA?	.DOSSEG	.EXIT
.FARDATA	.FARDATA?	.MODEL
.STACK	.STARTUP

String

CATSTR	INSTR
SIZESTR	SUBSTR

Structure and Record

ENDS	RECORD	STRUCT
TYPEDEF	UNION

See Also

Concepts

Microsoft Macro Assembler Reference

Last updated on 2007-12-17