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annotate lib/alib/to_lower.a @ 2521:cb2d70b917ea

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Added echo
author boisy
date Wed, 07 Apr 2010 14:10:22 +0000
parents 7d70b7e1cb21
children aaba193af04f
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1 ***************************************************
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2
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3 * Convert character in "B" to lowercase
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4
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5 * OTHER MODULES NEEDED: IS_UPPER
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6
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7 * ENTRY: B=ascii value of character to convert
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8
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9 * EXIT: B=ascii value of character in lowercase
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10
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11 * Note: control codes, etc. are not effected.
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14 nam Convert Char to Lowercase
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15 ttl Assembler Library Module
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18 psect TO_LOWER,0,0,0,0,0
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19
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20 TO_LOWER:
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21 pshs cc
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22 lbsr IS_UPPER only uppercase can be converted
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23 bne tolox no upper, exit
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24 addb #$20 make lowercase
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25
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26 tolox
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27 puls cc,pc
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29 endsect
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