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annotate lib/alib/bin2hex.a @ 2782:aaba193af04f lwtools-port

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Updated code to use lwasm/lwlink
author Boisy Pitre <boisy.pitre@nuance.com>
date Sat, 26 Jan 2013 08:26:31 -0600
parents 7d70b7e1cb21
children
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1 ****************************************
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2
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3 * Convert hex byte to 2 hex digits
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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: B= value to convert
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8
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9 * EXIT: D=2 byte hex digits
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12 nam Convert Byte to Hex
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13 ttl Assembler Library Module
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aaba193af04f Updated code to use lwasm/lwlink
Boisy Pitre <boisy.pitre@nuance.com>
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15 section .text
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16
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17 BIN2HEX:
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18 pshs b
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19 lsrb get msn
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20 lsrb
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21 lsrb
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22 lsrb fall through to convert msn and return
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23 bsr ToHex
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24 tfr b,a 1st digit in A
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25 puls b get lsn
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26 andb #%00001111 keep msn
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27
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28 ToHex
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29 addb #'0 convert to ascii
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30 cmpb #'9
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31 bls ToHex1
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32 addb #7 convert plus 9 to A..F
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33 ToHex1
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34 rts
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36 endsect
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