view lib/alib/is_print.a @ 2512:3dcda506604b

added pretty indexer to dskcopy process
author aaronwolfe
date Tue, 06 Apr 2010 01:20:16 +0000
parents 7d70b7e1cb21
children aaba193af04f
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*****************************************

* See if character in "B" is a printable character
* controls are defined as $00..$1F and $7F+ -- all others are printable

* OTHER MODULES NEEDED: IS_CNTRL

* ENTRY: B=character to test

* EXIT: CC zero=1 if printable, 0 if not


 nam Is Char Printable?
 ttl Assembler Library Module


 psect IS_PRINT,0,0,0,0,0

IS_PRINT:
 lbsr IS_CNTRL
 beq no
 orcc #%00000100 set zero
 rts

no
 andcc #%11111011 clear zero
 rts

 endsect