Category : Miscellaneous Language Source Code
Archive   : BDISK10.ZIP
Filename : BDISK.INC

.XLIST
;========================================================================
; BDISK Library Assembler Interface
;
; Declares all necessary information for easily interfacing with the
; BDISK library routines. Just include the following line in the
; assember source code:
;
; INCLUDE bdisk.inc
;
; AX always returns an error code (0 if no error). All other registers
; are preserved. Note: BP may not be used to pass parameters using
; the macros (it is used in loading the stack). MASM version 5.00 is
; required.

INCLUDE stddef.inc

; Tell linker what library to include.

INCLUDELIB bdisk

; Declare the external routines and data.

.DATA
EXTRN _BootSec:BYTE
.CODE
EXTRN _SetBase:FAR, _ResBase:FAR
EXTRN _SecRed:FAR, _SecVer:FAR, _SecWrt:FAR, _TrkFrm:FAR

; Reset the floppy disk data. Should be used before the other disk
; routines. Data is restored with ResBase.

setbase MACRO trksize, secsize
push bp
ldargs
call _SetBase
pop bp
ENDM

; Restore the floppy disk data. Should be used after SetBase and any
; other BDISK routines, but before disk accesses by DOS or other programs.

resbase MACRO
call _ResBase
ENDM

; Read an absolute sector.

secred MACRO drive, head, track, sector, count, segment, offset
push bp
ldargs
call _SecRed
pop bp
ENDM

; Verify an absolute sector.

secver MACRO drive, head, track, sector, count
push bp
ldargs
call _SecVer
pop bp
ENDM

; Write an absolute sector.

secwrt MACRO drive, head, track, sector, count, segment, offset
push bp
ldargs
call _SecWrt
pop bp
ENDM

; Format a track. The track size and sector size (normal is 9 sec/trk
; and 512 bytes/sec) should be the same as set by SetBase.

trkfrm MACRO drive, head, track, trksize, secsize
push bp
ldargs
call _TrkFrm
pop bp
ENDM
.LIST