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DriveWire routines for Atari SIO
author Boisy Pitre <boisy.pitre@nuance.com>
date Sat, 25 Feb 2012 18:21:54 -0600
parents 7d70b7e1cb21
children aaba193af04f
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**********************************

* Advance X to 1st space character

* OTHER MODULES NEEDED: none

* ENTRY: X=somewhere in a string

* EXIT: X=1st space character in string


 nam Advance to space
 ttl Assembler Library Module

 psect TO_SP,0,0,0,0,0

TO_SP:
 pshs b
spl
 ldb ,x+
 cmpb #$20 is it space?
 bne spl no, loop
 leax -1,x point to space
 puls b,pc

 endsect