Megatel Quark/100 Specifications download pdf (Page 60)

Changing

Character

Set

Loaded

at

Cold-boot

-------,

The

following

procedure shows

how

to

change

the

character

font

loaded

at

cold-boot

time.

A>DDT4

QCPM.SYS

IIICHR.DAT

IIR4DOO

IIGO

A>SAVE

85

TQCPM.SYS

A>QSYSGEN

11lCPM.SYS

DESTINATION

DISK

ON

DRIVE

A

A>

CHRED.COM

-

The

Character

Set

Editor

The

Character

Set

Editor

utility

CHRED~OM

is

included

on

the

Distribution

Diskettes.

It

can be used

to

modify

existing

character

sets,

or

to

create

new

ones.

The

Editor

dispLays

the

eight-by-eight

matrix

of

dots

forming

the

character

pattern

in

an

eight-by-eight

edit

frame

on

the

CRT.

With

a given

set

of

controL keys,

the

user

may

move

a "dot

cursor"

around

within

the

grid,

stopping

on

any dot and

turning

the

dot

on

or

off.

The

8-bit

ASCII

code which

is

to

represent

the

character

may

be

entered,

and

the

set

of

characters

may

be scanned

in

ascending

or

des cend i

ng

order

of

codes.

The

caLling syntax of

the

Character

Set

Editor

is

as foLLows:

A

>CHRED

dr:fi

lename.ext

where

"dr:"

is

the

opt iona L

Logi

ca l

dri

ve

on

whi

ch

the

character

set

fi

Le

can be found, and

"fi

lename.ext"

is

the

name

of

the

character

set

fi

Le

to

be

edited.

After

CHRLD

has been loaded,

it

wiLL

prompt

the

user

for

the

hexidecimaL

ASCII

code

for

the

character

to

be

edited.

When

a code

is

entered,

the

pattern

for

that

character

in

the

character

set

file

wiLL

be

displayed

in a

the

large

8-by-B

edit

frame,

as

weLL

as

in

a

small

single-character

cell

below

the

grid.

Also

displayed

is

a

"painting

cursor". Control keys "E,

"X,

"S,

and

"D

wi

Ll

move

the

cursor

up,

down,

Left,

or

right

within

the

edit

frame.

Positioning

the

cursor

on

any

cell

of

the

frame and

typing

a "space"

wi

Ll

cause

that

ceLL

to

be

inverted,

ie.,

the

dot

will

be

switched

on

or

off.

Also,

the

corresponding

pixel

in

the

single-character

cell

below

the

edit

frame

wi

II

change

to

show

the

actual

appearance

of

the

character.

Typing

control-C

or

control-R

wi

Ll

move

the

edit

frame onto

the

next

or

previous

ASCII

character.

Typing a

carriage

return

a llows a

new

code

for

the

character

to

be

edited

to

be

entered.

If

"00"

is

entered

as

the

new

code,

CHRLD

wi

L l ask

if

the

edited

character

set

is

to

be

saved.

If

the

response

to

this

prompt

is

ny", then

it

wi

Ll

save

the

edited

fi

le

under

the

fi

Lename

given

when

CHRED

was

caLLed.

A

fiLe

CHR.DAT

is

incLuded

on

the

Distribution

Diskettes.

This

fiLe

contains

a

character

set

identical

to

the

set

imbedded

within

the

distributed

copy

of

CHRLD.COM,

and can be used

as

a

starting

point

when

creating

new

character

sets.

Megatel Computer TechnoLogies

CP/M

2.23 Software

Section

Page S/W-

2.9

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