Table of Contents
Advertisement
Section B:
Hardware interface
************************************************************************
*
*
*
11 - Set Sector Number
*
*
*
************************************************************************
On entry:
BC
=
Sector Number, beginning from 0
On exit :
The
number
passed in BC is stored as sector number for the
next
disk
access.
The sector numbers count from 0 upwards. In most cases, this is
not
the
physical sector but a "logical
11
block of 128 bytes within
the
track defined by hardware function 10.
Under certain circumstances, the
associated sector is internally buffered.
Before calling this function,
late the logical sector number
EOS
calls hardware function 16 to trans-
to the physical.
Example:
Set sector 20 for next disk access
LD
c,s0
EOS function code
LO
DE,PARAMS
Parameters
CALL
5
Call EOS
PARAMS:
DB
l l
Hardware function No.
DB
0
DW
20
Sector number
DW
0
DW
0
EOS System manual
Daeumling & Zimmermann
Page 14 7
Advertisement
Chapters
Table of Contents
