Vector Graphic Extended Systems Monitor Manual de usuario descargar pdf (Pagina 7)

Extended Systems

Monitor

User·

s Manual

GmmRAL DESCRIPrICN

The

Version

4.0

Monitor

is

a

complete

systems

Monitor,

able

to

support

the

Flashwriter

II

(80 X

24)

board,

and

the

Vector

Graphic

Keyboard. Thus

it

is

recommended for·

use

with

the

Mindless

Terminal.

All

keyboard and

video

I/O

can

be

done

through

the

Monitor's

I/O

routines,

freeing

higher

level

software

from

carrying

a

variety

of

versions

for

different

hardware

configurations.

since

version

4.

(21

does

not

~rk

wi

th

serial

terminals,

use

the

2.1

version

for

this

purpose.

Version

4.0

differs

from

3.1

in

the

f?llowing

key ways:

1)

Improved

video

driver,

with

a number

of

additional

commands

that

software

can

use

to

manipulate

the

screen,

and

easier

X-Y

positioning.

2)

A

breakpoint

executive

command,

for

quick

debugging.

3) A communications program

that

allows

you

to

use

a

Vector

Graphic

system

as

a

dumb

terminaL

(Executive

command

"E").

4)

Space

to

include

up

to

15

keyboard

conversions

for

foreign

language

keyboards.

5)

Much

easier

to

use

Executive

commands.

6)

Control-Q

no

lon;er

can

be used

to

return

to

the

Monitor

Executive.

In

addition

to

I/O,

the

Monitor

includes

an

extensive

command

executive,

a

compactly

written

program

designed

to

facilitate

manipulation

and

display

of

memory

data.

The "prompt" which

indicates

that

the

Moni

tor

Executive

is

waitin;

for

operator

entry

is

an

asterisk

(*).

There

are

24

commands

which

are

entered

as

a

single

letter

followed by up

to

four

hexadecimal

data

fields.

After

each

field

is

entered,

a

space

is

automatically

ouput

as

a

prompt.

Either

upper

or

lower

case

alpha

characters

may

be

used,

but

lower

case

characters

will

be

converted

to

upper

case,

and any non-hex

characters

will

be

ignored.

Allowable hex

characters

are

0-9,

A-F.

Address

fields

are

four

digits

long;

other

fields

are

two

digits

lon;.

The

executive

is

useful

in

debugging

hardware

and

software,

particularly

assembly

language

softare,

because

it

is

resident

in

the

system.

If

a

space

is

typed

at

any

time

during

field

entry,

a

default

value

of

zero

is

assumed

for

all

leading

zeroes.

This

applies

to

an

entire

field

as

well

as

one

that

has

been

partially

entered,

and

the

cursor

will

advance

to

the

next

field

if

required.

For example,

typing

(SP)

will

have

the

same

effect

as

typing

0000;

typing

1(21(21

(SP)

will

have

the

same

effect

as

0100.

Any

command

that

generates

a

display

can

be

temporarily

halted

with

a

space

and

continued

with

another

space.

The

ESCape

key

will

abort

a

display

or

command

entry.

Rev.

4.0-A

10/15/79

1

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