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annotate level2/modules/r0.asm @ 2937:e881994bfe30

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rbdesc/superdesc: Raise default SAS from $8 to $10 Shortens FD.SEG usage for longer files.
author Gene Heskett <gheskett@wdtv.com>
date Fri, 24 Jan 2014 20:56:07 +0100
parents 5a916a52f415
children
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339845ea3507 Backported rammer.asm from NitrOS-9 to OS-9 Level Two
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1 ********************************************************************
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2 * R0 - RAMMER Device Descriptor
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3 *
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4 * $Id$
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5 *
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8e804211cb25 Fixed sources to have new style change logs at top
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6 * Edt/Rev YYYY/MM/DD Modified by
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7 * Comment
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8 * ------------------------------------------------------------------
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9
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10 nam R0
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11 ttl RAMMER Device Descriptor
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12
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13 ifp1
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14 use defsfile
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15 endc
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16
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17 tylg set Devic+Objct
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18 atrv set ReEnt+rev
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d13864ef3317 Changed to rev 0
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19 rev set $00
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20
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5a916a52f415 r0.asm: Fix RAM disk size setting through makefile
Tormod Volden <debian.tormod@gmail.com>
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21 IFNDEF RAMSize
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22 RAMSize set 128
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Tormod Volden <debian.tormod@gmail.com>
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23 ENDC
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24 IFNDEF SAS
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25 SAS set 4
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26 ENDC
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28 mod eom,name,tylg,atrv,mgrnam,drvnam
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29
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30 fcb DIR.+SHARE.+PREAD.+PWRIT.+PEXEC.+READ.+WRITE.+EXEC. mode byte
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31 fcb HW.Page extended controller address
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32 fdb $FFE0 physical controller address
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33 fcb initsize-*-1 initilization table size
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34 fcb DT.RBF device type:0=scf,1=rbf,2=pipe,3=scf
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35 fcb $00 drive number
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36 fcb $00 step rate
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37 fcb $20 drive device type
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38 fcb $01 media density:0=single,1=double
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39 fdb RAMSize
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40 fcb $01 number of sides
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41 fcb $01 verify disk writes:0=on
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42 fdb 4 # of sectors per track
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43 fdb 4 # of sectors per track (track 0)
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44 fcb $01 sector interleave factor
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45 fcb SAS minimum size of sector allocation
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46 initsize equ *
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47
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48 IFNE DD
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49 name fcs /DD/
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50 ELSE
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51 name fcs /R0/
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52 ENDC
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53 mgrnam fcs /RBF/
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54 drvnam fcs /Rammer/
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55
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56 emod
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57 eom equ *
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58 end