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annotate lib/alib/parsnstr.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 * Parse sign bit terminated string to convert it to a
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2 * null terminated string. Note: if X and Y are the same
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3 * the existing string will be overwritten -- don't do this
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4 * with psects...
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5
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6 * OTHER MODULES NEEDED: none
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7
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8 * ENTRY: X=start of sign bit terminated string
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9 * Y=buffer for null terminated string
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10
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11 * EXIT: D=string size (not including null)
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12 * All other regs (except cc) preserved
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14
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15 nam Parse sign-bit terminated string
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16 ttl Assembler Library Module
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18
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19 psect PARSNSTR,0,0,0,0,0
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20
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21
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22 PARSNSTR:
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23 pshs x
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24 lbsr STRHCPY copy string
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25 tfr y,x point to moved string
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26 lbsr STRHLEN find length of string
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27 pshs d size
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28 leax d,x
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29 lda ,-x get final byte
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30 anda #%01111111 clear sign bit
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31 clrb add null terminator
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32 std ,x
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33 puls d,x,pc
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36 endsect
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