annotate level1/modules/nildrv.asm @ 256:9e9648e17298

Additional source improvements
author boisy
date Sat, 20 Jul 2002 14:20:13 +0000
parents 668388823050
children 10957d54bf16
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1 ********************************************************************
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2 * NilDrv - Null device driver
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3 *
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4 * $Id$
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5 *
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6 * Ed. Comments Who YY/MM/DD
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7 * ------------------------------------------------------------------
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8 * 3 From Tandy OS-9 Level One VR 02.00.00
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10 nam NilDrv
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11 ttl Null device driver
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12
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13 * Disassembled 98/08/23 17:30:33 by Disasm v1.6 (C) 1988 by RML
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14
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15 ifp1
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16 use defsfile
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17 endc
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18
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19 tylg set Drivr+Objct
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20 atrv set ReEnt+rev
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21 rev set $01
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22 edition set 3
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24 mod eom,name,tylg,atrv,start,size
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25
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26 u0000 rmb 6
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27 size equ .
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28
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29 fcb UPDAT.
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30
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31 name fcs /NilDrv/
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32 fcb edition
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33
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34 start
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35 Init clrb
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36 rts
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37 nop
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38
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39 Read bra Read2
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40 nop
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41
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42 Write clrb
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43 rts
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44 nop
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45
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46 GetStat clrb
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47 rts
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48 nop
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49
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50 SetStat clrb
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51 rts
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52 nop
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53
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54 Term clrb
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55 rts
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56
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57 Read2 comb
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58 ldb #E$EOF
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59 rts
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61 emod
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62 eom equ *