Chapter 5
THE
SYSTEM INTERFACE
...........................
· ..
····
.. ·· ..
5-1
5.1
The
CP
1M
Configuration
.............................................
5-1
5.2 The IOBYTE
..............................................................
5-2
5.3 The File Control Block (FCB)
................................
········
5-3
5.4 BDOS Function Calls
...................................................
5-4
5.5 Zero Page Locations
....................................................
5-8
5.6 The BIOS Interface
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············
.........
5-9
5.7 The Entry Address
of
the BIOS Subroutines
.....................
5-10
Appendix A PX-8 CONSOLE ESCAPE SEQUENCES
Appendix B DRIVE NAME ASSIGNMENTS
Appendix C
THE
BATTERIES
Appendix D KEYBOARD LAYOUTS
BY
COUNTRY
Appendix E ASCII CODE TABLE AND INTERNATIONAL
CHARACTER SETS
Appendix F MEMORY MAPS
Appendix G HARDWARE SPECIFICATIONS
Appendix H SOME
EXAMPLE
PROGRAMS
Appendix I
CP
1M
ERRORS AND MESSAGES
Index
Chapter
1
OVERVIEW
II
Chapter
2
STARTING
UP
AND
OPERATING
THE
PX·8
Chapter
3
OPERATING
THE
COMPUTER
UNDER
CPIM
Chapter
4
INPUT
AND
OUTPUT
DEVICES
AND
OPTIONAL
ADDITIONS
TO
THE
PX
8
Chapter
5
THE
SYSTEM
INTERFACE
Appendices
I
I
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•