Mercurial > hg > Members > kono > nitros9-code

annotate 3rdparty/drivers/burke/bbhd.asm @ 2434:eab6b9e18832

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update defs for RFM
author aaronwolfe
date Sun, 21 Feb 2010 06:24:47 +0000
parents c10820aa211b
children
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1 *******************************************
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2 *** ***
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3 *** COPYRIGHT 1988 BURKE & BURKE ***
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4 *** ALL RIGHTS RESERVED ***
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5 *** ***
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6 *******************************************
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7
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8 nam BBHD
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9
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10 *
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11 * CoCo XT Hard Disk Driver Version 2.0
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12 * (with formatting capability)
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13 *
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14 *
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15 * For Western Digital WD1002-WX2 (or WX1) Controller.
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16 *
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17 * This version is optimized for ONE hard drive having 4
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18 * heads and 32 sectors per track. There is no formatting
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19 * capability and no write verification.
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20 *
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21 * The number of tracks is taken from the device descriptor,
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22 * so this driver can be used with ST-506, ST-412, ST-225 or
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23 * ST-238 drives. This version DOES include the read cache.
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24 * It has the cruddy error messages.
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25
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26 *
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27 * Chris Burke Schaumburg, IL 02/22/88
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28 *
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29
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30 page
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31 *
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32 * Conditional assembly control
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33 *
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34
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35 Drives equ 1 ;Number of drives supported
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36
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37 irqflg equ 0 ;non-zero to mask interrupts during HD access
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38 trsflg equ 1 ;non-zero if optimized for 4 heads, 32 SPT
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39 cchflg equ 1 ;non-zero if read cache supported
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40 vrfflg equ 0 ;non-zero if write verification supported
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41 tboflg equ 0 ;non-zero if jump to 2 MHz for block moves
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42 fstflg equ 1 ;non-zero if fast transfers supported
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43 sysram equ 1 ;non-zero to use system RAM for verf buffer
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44 sizflg equ 0 ;non-zero to allow drives of different sizes
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45
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46 fmtflg equ 0 ;non-zero if hard formatting supported
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47 errflg equ 0 ;non-zero for good error messages
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48 icdflg equ 0 ;non-zero to ignore C/D status bit
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49 timflg equ 0 ;non-zero to support access timer
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50
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51 XLEVEL equ 2 ;Bogus level 2 flag
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52
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53 testing equ 0 ;non-zero to call driver "XD", not "HD"
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54
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55 *
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56 * Include the main line
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57 *
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58
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59 use xtos9.src
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60