SHASM Conditional Assembly Directives

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The following table shows the conditional assembly directives.

Directive Syntax Description
.ASSIGNA 
<preprocessor variable>[:]
.ASSIGNA <value>
 Defines an integer preprocessor variable; the defined variable can be redefined.
.ASSIGNC 
<preprocessor variable>[:]
.ASSIGNCD<character string>
 Defines a character preprocessor variable; the defined variable can be redefined.
.AIF
.AELSIF
.AELSE
.AENDI		 
.AIF <condition1>
<Source statements assembled if condition1 is satisfied>
.AELSIF <condition2>
<Source statements assembled if condition1 is not satisfied,
but condition2 is satisfied>
.AELSE
<Source statements assembled if neither condition1
nor condition2 is satisfied>
.AENDI
 Determines whether or not to assemble a part of a source program according to the specified condition: When the condition is satisfied, the statements after the .AIF are assembled; When not satisfied, the statements after the .AELSE are assembled.
.ERROR or .AERROR 
.ERROR[<expression>[,<expression>...]]
 Reports error detected at assembly time by user code. The alternate spelling .AERROR is also supported
.AREPEAT
.AENDR		 
.AREPEATD<count>
<Source statements iteratively assembled>
.AENDR
 Repeats assembly of a part of a source program between .AREPEAT and .AENDR the specified number of times.
.AWHILE
.AENDW		 
.AWHILE <condition>
<Source statements iteratively assembled>
.AENDW
 Assembles a part of a source program between .AWHILE and .AENDW iteratively while the specified condition is satisfied.
.EXITM 
.EXITM
 Terminates .AREPEAT or .AWHILE iterated expansion.
.ALIMIT 
.ALIMITD<maximum count>
 Specifies the upper limit value for expansion of the AWHILE directive in the preprocessor.

See Also

SHx Series Assembler Directives | SHASM Section and Location Directives | SHASM Symbol Handling Directives | SHASM Data and Data Area Directives | SHASM Function-Definition Directives | SHASM Debug Information Directives | SHASM Listing Directives | SHASM Macro Directives

 Last updated on Thursday, April 08, 2004

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