Preface
The CPIM-86 Operating System Guide for the
APC
presents the system
program-
ming aspects
of
CP/M-86,
a single-user operating system for the
Jl
PD8086 16-bit
microprocessor, used by
NEC
for the Advanced Personal
Computer
(APC). The
discussion assumes
that
the reader
is
familiar with
CP/M,
the Digital Research 8-bit
operating system.
To
clarify specific differences with CP/M-86, this document
refers to the 8-bit version
of
CP/M
as CP/M-80. Elements common
to
both
systems
are simply called
CP/M
features.
This Operating System Guide presents an overview
of
the
CP/M-86
programming
interface conventions.
It
also describes procedures for adapting
CP
/M-86
to a
custom hardware environment.
Chapter 1 gives
an
overview
of
CP/M-86
and
summarizes how it differs from
CP/M-80.
Chapter
2 describes the general execution environment while
Chapter
3
tells how
to
generate
command
files.
Chapter
4 defines the programming interfaces
to the Basic Disk Operating System (BDOS). Chapters 5
and
6 define the
standard
and
customized features
of
the Basic
Input/
Output
System (BIOS). (Chapter 5
includes
CP/M-86
disk operations for
both
floppy diskette
and
hard
disk media.)
Chapter
7 discusses alteration
of
the BIOS to
support
custom disk configurations.
Chapter
8 describes the loading
operation
and
the organization
of
the
CP
/M-86
system file. Chapter 9 describes GSX-86, the graphics extension for the APC.
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