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annotate lib/alib/to_upprs.a @ 2765:0bd16cca86b7

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Updated rules.mak for all the os9 format's to format the entire disk. People were having some issues with the disk images not being formatted to their full capacity and preventing some functions from working.
author drencor-xeen
date Thu, 17 Jan 2013 11:03:26 -0600
parents 7d70b7e1cb21
children aaba193af04f
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1 *******************************
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2
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3 * convert a null terminated string to all uppercase
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4
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5 * OTHER MODULES NEEDED: TO_UPPER
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6
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7 * ENTRY: X=start of string
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8
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9 * EXIT: all registers (except CC) preserved
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12 nam Convert String to Uppercase
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13 ttl Assembler Library Module
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16 psect TO_UPPRS,0,0,0,0,0
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18 TO_UPPRS:
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19 pshs cc,b,x
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21 loop
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22 ldb ,x get char to check
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23 beq exit exit if all done
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24 bsr TO_UPPER convert to upper
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25 stb ,x+ put back in string
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26 bra loop
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27
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28 exit
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29 puls cc,b,x,pc
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31 endsect
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