ACT apricot - Page 239

328 pages

Save Page as PDF

To Next Page

To Next Page

To Previous Page

To Previous Page

Loading...

INTRODUCTION

The

Apricot BIOS

has

been

written

by

ACT

to

make

maximum

use

of

the

hardware

facilities provided by

the

Apricot. It

incorporates

a

number

of

unique

facilities

which

are

not

provided by

other

microcomputers.

The

following

sections describe

how

various

aspects of

the

BIOS

can

be

changed or accessed

from

within

applications software.

Where necessary

programming

examples are given.

These

are

in

MicroSoft Basic,

which

is

included

with

all Apricots.

For

other

languages,

the

routines

will

have to be changed

accordingly.

Bios Internal Structure - Memory Map

All

the

BIOS,

disk

operating

system

and

allocation

of

memory

for graphics,

disk

cache,

character

fonts

and

keyboard tables

exist

in

the

first 128K bytes of RAM. Table

1 is a detailed

Memory

Map

showing

locations of

the

relevant parts of

the

lower

128k.

Table of Contents

Other manuals for ACT apricot

Service Manual305 pages