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annotate lib/alib/strncpy.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 * STRNCPY: copy N bytes of a null terminated string
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4 * User must ensure there is room in buffer!!!
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5 * If N>string length only N bytes will be moved
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6
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7 * OTHER MODULES NEEDED: STRLEN, MEMMOVE
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8
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9 * ENTRY: X=start of string to move
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10 * Y=buffer for copy of string
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12 * EXIT: D = actual number of bytes moved
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13 * all other regs preserved (except cc)
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16 nam Copy partial String
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17 ttl Assembler Library Module
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20 psect STRNCPY,0,0,0,0,0
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22 STRNCPY:
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23 pshs d bytes wanted to move
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24 lbsr STRLEN find length of string
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25 addd #1 move NULL also
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26 cmpd ,s get smaller of passed/actual size
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27 bls skip use actual leng
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28 ldd ,s use passed leng²²
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29 skip
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30 lbsr MEMMOVE move it
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31 leas 2,s
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32 rts
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34 endsect
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