Duplicate Source Lines. Freescale Semiconductor sc100

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Assembler Directives

Descriptions

DUP Duplicate Source Lines

Duplicates the following source lines the specified number of times; the ENDM directive marks the last line to be duplicated.

[label] DUP times

.

.

ENDM

Parameters

label

Optional label that receives the value of the runtime location counter at the start of directive processing.

times

Number of times to duplicate source lines: an expression that evaluates to an absolute integer. This expression can have any memory-space attribute, but must not contain any forward references. If the times value is less than or equal to zero, the assembler output does not include the sequence of lines.

Remarks

You may nest the DUP directive to any level. If the times value is less than or equal to zero, the assembler output does not include the sequence of lines.

To immediately halt source-line duplication, for example, upon detection of an error, use the EXITM directive and conditional-assembly directives.

Related Directives

DUPA , DUPC , DUPF , DUPA , EXITM, MACRO

Example

If MD and MEX options are enabled, and if input includes these lines:

COUNT SET 3

DUP COUNT

ASR D0

ENDM

; ASR BY COUNT

The source listing includes the line ASR

D0

three times.

114 SC100 Assembler User Guide

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