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***                                     ***
***     COPYRIGHT 1988 BURKE & BURKE    ***
***     ALL RIGHTS RESERVED             ***
***                                     ***
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        nam     BBHD

*
*   CoCo XT Hard Disk Driver  Version 2.0
*   (with formatting capability)
*
*
*   For Western Digital WD1002-WX2 (or WX1) Controller.
*
*   This version is optimized for ONE hard drive having 4
*   heads and 32 sectors per track.  There is no formatting
*   capability and no write verification.
*
*   The number of tracks is taken from the device descriptor,
*   so this driver can be used with ST-506, ST-412, ST-225 or 
*   ST-238 drives.  This version DOES include the read cache.
*   It has the cruddy error messages.

*
*   Chris Burke  Schaumburg, IL  02/22/88
*

 page
*
*  Conditional assembly control
*

Drives  equ     1           ;Number of drives supported

irqflg  equ     0           ;non-zero to mask interrupts during HD access
trsflg  equ     1           ;non-zero if optimized for 4 heads, 32 SPT
cchflg  equ     1           ;non-zero if read cache supported
vrfflg  equ     0           ;non-zero if write verification supported
tboflg  equ     0           ;non-zero if jump to 2 MHz for block moves
fstflg  equ     1           ;non-zero if fast transfers supported
sysram  equ     1           ;non-zero to use system RAM for verf buffer
sizflg  equ     0           ;non-zero to allow drives of different sizes

fmtflg  equ     0           ;non-zero if hard formatting supported
errflg  equ     0           ;non-zero for good error messages
icdflg  equ     0           ;non-zero to ignore C/D status bit
timflg  equ     0           ;non-zero to support access timer

XLEVEL  equ     2           ;Bogus level 2 flag

testing equ     0           ;non-zero to call driver "XD", not "HD"

*
*   Include the main line
*

        use     xtos9.src