Vector Graphic Extended Systems Monitor Manual de usuario descargar pdf (Pagina 11)

Vector

RAID

Reference

Manual

I.

PERSPECrIVE

1.1

The

value

of

RAID

Vector

Graphic's

rrem:)l:Y

rrapped

systems,

such

as

the

System

B,

offer

p:JWerful

capabili

ties

for

the

assembly

lan:Juage

pro;jtdlllUer,

capabili

ties'

not

available

on

other

small

general

purpose

computers.

SCOPE,

Vector's

sophisticated

screen-oriented

prcxjram

editor

is

a

lmiquely

efficient

teol.

With

the

addition

of

RAID -

the

Rapid

Interactive

Cebugger

-,

Vector

IS

nerot:y

mapped systems

reach

a

level

of

sophistication

for

assembly

language

software

development

that

rivals

true

micrcprocessor

develcprrent

systems.

The

program

to

be

deblgged

is

called

the

"target

program".

RAID

can

deblg

a

target

consisting

of

any

valid

Z-80

operations.

The

use

of

MID

allcws

the

programmer

to

execute

the

target

program

instruction-by-instruction,

while

viewing

the

effect

on

the

CPU

and

memory.

The

status

of

the

CPU

and

significant

parts

of

remory

are

displayed

constantly

on

the

screen.

This

process

is

called

"simulation'"

because

RAID

takes

each

instruction

out

of

the

target

program

in

order,

executes

it,

and

then

displays

the

result

of

the

operation

in

the

status

display

on

the

screen.

RAID

is

actually

in

control

of

the

systan,

but

the

user

only

sees

on

the

screen

what

~uld

l:e

happening

if

the

target

program

were

running

by

itself

in

the

system.

During

simulation

The

presence

of

RAID

in

the

system

is

transparent

to

the

cperator,

except

for

the

t::eriodic

refresh~

of

the

status

display

on

the

screen.

S:i.Irulation

is

the

heart

of

RAID.,

All

RAID

operations

revolve

aromd

the

use

of

simulation

to

debug

progams.

By

seeing

the

state

of

the

CPU

and m:nory

after

each

instruction

is

executed,

the

PLOgtdlllUer

can

firo

the

instruction

or

routine

which

causes

unexpected

effects.

There

are

also

RAID

commands

for

changing

small

sections

of

PLCYldlll"

memory

in

general"

or

CPU

registers,

in

order

to

determine

the

effect·,

but

simulation

is

the

main

purpose

for

using

RAID.

The

fast

menoz:y-rtapped

screen

used-

in

Vector

Graphic

systems

enables

RAIDI

s

tmique

fom

of

full-screen

status

display.

After

the

exeOltion

of

each

target

instruction

is

simulated,

the

current

state

of

all

registers,

alternate

register,

flags,

alternate

flags,

index

registers,

the

stack,

the

stack

pointer,

six

selectable

blocks

of

rnenory,

the

last

b.o

instructions

silnulated,

the

instruction

abcut

to

be

simulated,

and

the

four

following

ins

tructions.

The

user

can

re-define

the

location

of

each

of

the

six

selected

blocks

of

merrcry

at

any

tilre,

and can

also

cause each

of

them

to

appear

in

either

hex

or

ASCII

representation.

The

portion

of

the

stack

displayed

can

also

be

selected.

Further,

instructions

are

disassembled

as

they

are

displayed,

using

Vector's

8080-superset

Z-80 mnerronics. The ASCII

equivalent

of

each

opcode

and

q;:erand

also

appears,

in

case

the

codes

in

fact-

represent

ASCII

characters.

Rev.

l.l-A

5/30/80

1-1

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 38 39

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