Alpha VS 100 - Machine Language Programming

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9. Machine

language

programming

••This

section

is

only

for

machine

language

programmers.

To

add

VS48

or VS32

with

machine

language

software,

you

must do

the

following:

•Create

a

three

byte

pointer

to

a

string

containing

the

words

to

be spoken,

(first

byte

is

the

length;

second

and

third

bytes

are

string

location).

•Store

the

location

of

this

pointer

in

4121H.

•CALL

OEDOOK

for

VS48

or

OADOOH

for

VS32

(

CALL

OBDOOH

for

1SK

tape

users)

.

•The

VS-100

will

speak

&nd

the

phomeme

codes

will

be

stored

m

string.

The

location

of

the

pointer

to this

string

will

be

in

4121H.

Example

:

You

want

the

computer

to

say

:

"Good

norn

ing"

.

The

string

"Good

morning"

is

stored

at SOOOH

-

800BH.

I'our

pointer

would

be

OC,

00,80.

Let's say

you stored

this

pointer

at

7F00H

.

Store

7F00H

in

4121H and use

the

command

^ALL

0ED00H

;

for

VS48,

or

:ALL

OADOOH

;

for

VS32

or

:ALL

06D00H

;

for

16K tape

users

That's

all

that

you have

to do

. All

registers

are

saved

snd

restored

.

Page

28

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