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annotate lib/alib/fputs.as @ 3278:ea1afb494127

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defs: Add Bt.Sec for atari and corsham
author Tormod Volden <debian.tormod@gmail.com>
date Sat, 07 Mar 2020 23:52:40 +0100
parents 03f26e88b809
children
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1 **************************************
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2
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3 * FPUTS: print null terminated string to "A".
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4
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5 * OTHER MODULES REQUIRED: none
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6
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7 * ENTRY: X=start of string
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8 * A=path
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9
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10 * EXIT: CC carry set if error
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11 * B = OS9 error if any (from I$WritLn)
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12
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13 * NOTE: string is feed through I$WritLn for editing (adding LF, etc.)
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15 nam Output String
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16 ttl Assembler Library Module
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18
2782
aaba193af04f Updated code to use lwasm/lwlink
Boisy Pitre <boisy.pitre@nuance.com>
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19 section .text
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20
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21 FPUTS:
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22 pshs a,x,y,u
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23 tfr x,u start of 1st segment to print
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24
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25 loop
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26 pshs u start of this segment
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27 ldy #-1 size of this seg.
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28
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29 l1
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30 leay 1,y count size
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31 ldb ,u+ check for null/cr
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32 beq doit null=do last seg.
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33 cmpb #$0d cr=do this seg.
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34 bne l1
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35 leay 1,y count CR as one of the ones to print
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36
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37 doit
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38 puls x get start of this segment
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39 OS9 I$WritLn
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40 bcs exit
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41 tst -1,u at end?
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42 bne loop
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43
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44 exit
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45 puls a,x,y,u,pc return with status in CC,error code in B
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46
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47 endsect