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annotate lib/alib/to_lowrs.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 lowercase
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4
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5 * OTHER MODULES NEEDED: TO_LOWER
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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 preserved
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10
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11 nam Convert String to Lowercase
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12 ttl Assembler Library Module
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13
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14 psect TO_LOWRS,0,0,0,0,0
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16 TO_LOWRS:
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17 pshs cc,b,x
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19 loop
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20 ldb ,x get char to check
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21 beq exit exit if all done
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22 bsr TO_LOWER convert to upper
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23 stb ,x+ put back in string
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24 bra loop loop till done
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25
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26 exit
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27 puls cc,b,x,pc
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29 endsect
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