annotate lib/alib/is_lower.as @ 3054:22ddd48b4ec2

level1 krn: Fix scheduler bug that only affected 6309 The original 6809 binary was correct, but it was disassembled and interpreted wrongly, so that reassembly went wrong on 6309.
author Tormod Volden <debian.tormod@gmail.com>
date Sun, 25 Jan 2015 22:36:02 +0100
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 lowercase letter
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4
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5 * OTHER MODULES NEEDED: none
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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 lowercase, 0 if not
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11 nam Is Char. Lowercase?
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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_LOWER:
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19 cmpb #'a
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20 blo no not lowercase, zero cleared
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21 cmpb #'z if equal, zero set
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22 bhi no not lowc, zero cleared
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23 orcc #%00000100 set zero
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25 no
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26 rts
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28 endsect
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