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annotate lib/alib/is_alpha.as @ 3220:9ccec98c9897

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Updated IDE Driver makefile so it will have place holders for dsk, dskclean, and dskcopy so that make does not error out when chaining into the driver tree to build disk images where applicable.
author David Ladd <drencor-xeen@users.sourceforge.net>
date Wed, 20 Dec 2017 16:10:50 -0600
parents 03f26e88b809
children
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1 *****************************************
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2
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3 * See if character in "B" is a alpha letter a..z or A..Z
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5 * OTHER MODULES NEEDED: IS_LOWER, IS_UPPER
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7 * ENTRY: B=character to test
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8
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9 * EXIT: CC zero=1 if alpha, 0 if not
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11 nam Is Char Alphabetic?
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12 ttl Assembler Library Module
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2782
aaba193af04f Updated code to use lwasm/lwlink
Boisy Pitre <boisy.pitre@nuance.com>
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15 section .text
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18 IS_ALPHA:
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19 lbsr IS_UPPER
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20 BEQ yes uppercase letters are alpha
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21 lbsr IS_LOWER last chance to set flags.
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23 yes
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24 rts
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27 endsect
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