Commodore Plus 4 - Page 248

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236

Machine

Language

the

Commodore

Plus/4

Example:

;

2000

The

monitor

asked

change

the

program

counter

$2000,

the

status

$00,

and

the

accumulator

$05.

The

remaining

registers

are

unchanged.

Performing

command

this

point

verifies

the

changes.

;

2000

00 P9

Saving

Cassette

Disk—The

Command

The

(Save)

command

used

save

section

memory

cassette

disk.

The

syntax

follows:

filename,device,start

address,end

address

The

filename

the

Plus/4

file

name

surrounded

quotation

marks.

The

device

the

Plus/4

device

number

(see

Chapter

6).

The

start

address

the

address

the

first

location

save.

The

end

address

the

address

FOLLOWING

the

last

location

save.

The

monitor

saves

the

specified

section

memory

program

file

with

the

specified

name.

automatically

saves

the

start

address

the

first

two

bytes

the

file,

that

loaded

into

the

proper

memory

location

the

(Load)

command.

important

note

carefully

that

the

memory

range

specified

NOT

saved

inclusively;

rather,

the

start

address

included

and

the

end

address

not.

Example:

S"TEST"

,8,8000,3000

SAVING

TEST

The

monitor

asked

save

the

contents

memory

from

$2000

through

$2FFF

the

program

"TEST"

the

disk

drive

(device

8).

reports

that

saving

the

file.

Example:

S"TEST",1,2000,2100

PRESS

PLAY

RECORD

TAPE

SAVING

TEST

The

monitor

asked

save

the

contents

memory

from

$2000

through

$20FF

the

program

"TEST"

the

cassette

(device

1).

Commodore Plus 4 - Page 248

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