Carel UE011 User Manual download pdf (Page 9)

DI

SPl..AY

OUTPUT

THE

DISPL.AY

OUTPUT

ROUTINE

IS

DISTINCT

mOM

THE

"ECHO"

ROUTINE

DES-

CRIBED

IN

THE

OPERATOR

INPUT

ROUTINE

ABOVE

(ALTHOUGH,

IN

MANY

CASES,

THE

"ECHO"

FUNCTION

OF

THE

"RCV"

SUBROUTINE

MAY

SIMPL.Y

BE

OBTAINED

BY

CALL-

ING

THIS

DISPL.AY

OUTPUT

ROUTINE

AS

IT

IS

DEFINED

HEREI)

THE

DISPl..AY

OUTPUT

ROUTINE

WHEN

CALL.ED BY

THE

110NltOR

PROGRAM MUST

OUTPUT

THE

ASCII

ENCODED CHARACTER

CONTAINED

IN

THE

ACCUMULATOR

AT

THE

TIME

THE

ROUTINE

IS

CALl.ED

TO

THE

DISPLAY

DEVICE.

THE

ROUTINE

IS

mEE

TO

USE

CPU

REGIS-

TERS

"a"

THRU

"E"

FOR

PROCESSING.

THE

CALLING

ROUTINE

EXPECTS

THE

AC-

CUMULATOR AND

REGISTERS

"H"

AND

"I."

TO

CONTAIN

THE

ORGINAL

INFORMATION

IIliEN

THE

SUBROUTINE

IS

EXITED.

THE

DISPLAY

OUTPUT

SUBROUTINE

IS

REFER-

ENCED

IN

THE

MONITOR

PROGRAM

BY

A "CAL.

PRINT"

INSTRUCTION.

THERE

ARE

FIVE

ROUTINES

WHICH

USE

THE

"CAL

PRINT"

COMMAND.

THE

"ERRUR"

ROUTINE

USES

THE

"PRINT"

SUBROUTINE

TO

OUTPUT

ERRUR

MESSAGES

TO

THE

OPERATOR.

THE

DISPl..AY

OUTPUT

ROUTINE

IS

ALSO

CALLED

BY

THE

SUBROUTINES

LABELED

"Msa"

(TO

PRINT

VARIOUS

MESSAGES>.

"OCTOUT"

(FUR

PRINTING

3

DIGIT

UCTAL

NUMtlERS>,

"COLON"

(TO

PRINT

A

:)

AND

"SPAC"

(TO

PRINT

A

SPACE).

BULK

STORAGE

INPUT

THE

BULK

STORAGE

INPUT

ROUTINE

WHEN

CALLED

MUST

INPUT

DATA

FROM

THE

BULK

STORAGE

DEVICE.

THE

FORMAT FOR

READING

THE

DATA AND

DETERMINING

'\IHERt:

THE

DATA

IS

TO

BE

STORED

IS

ENTIRELY

LEFT

UP TO

THE

USER

PROVIDED

EULK

INPUT

ROUTINE.

THE

ONL.Y

FUNCTION

OF

THE

MONITOR

PROGRAM FOR

THIS

COMMAND

IS

TO ALLOY

THE

INITIATION

OF

A BULK

INPUT

VIA

THE

KEYBOARD AND

TO

RETURN

TO

THE

MONITOR

PRO(iRAM UPON

COMPLETION

OF

THE

INPUT

SEQUEIIlCE.

THEREFORE..

THE

BULK

STORAGE

INPUT

ROUTINE

IS

FREE

TO

USE

Al.L

THE

CPU

RE-

GISTERS

VHILE

PERFORMING

ITS

DATA

INPUT.

THE

BULK

STORAGE

INPUT

ROUTINE

IS

REFERENCED

BY

THE

INSTRUCTION

"CAL

READ"

WHICH

IS

LOCATED

IN

THE

BULK

READ

ROUTINE

OF

THE

MONITOR

PROGRAM.

BULK

STORAGE

OUTPUT

THE

EULK

STORAGE

OUTPUT

ROUTINE

WHEN

CALLED

MUST

OUTPUT

THE

DATA

INDICATED

TO

THE

BULK

STORAGE

DEVICE.

THE

DATA

TO

BE

STORED

IS

DELINE-

ATED

BY

REGISTERS

..

1..

..

AND

"H"

FOR

THE

1..0'\1

AND

PAGE

ADDRESS.

RESPECTIVE-

LY.

FOR

THE

START

ADDRESS

AND

REGISTERS

"E"

AND

"0"

FOR

THE

LOW

AND

PAGE

ADDRESS,

RESPECTIVELY.

FOR

THE

ENDING

ADDRESS

OF

THE

BLOCK

OF

DATA

TO

EE

OUTPUT.

AS

VITH

THE

BULK

INPUT

ROUTINE..

THE

ACTUAL

FORMAT AND

PROCEDURE

FOR

OUTPUTTING

THE

DATA

IS

ENTIRELY

CONTROLLED

BY

THIS

ROUTINE.

THE

MON-

ITOR

PROGRAM

SIMPLY

SETS

UP

THE

REGISTERS

DESI

GNATING

THE

LIMITS

OF

THE

BLOCK TO

BE

OUTPUT.

THIS

BULK

STORAGE

OUTPUT

ROUTINE

IS

CALLED

EY

THE

BULK

.TRITE

ROUTINE

BY

THE

INSTRUCTION

"CAL

PUNCH,"

I/O

INTEGRITY

CONSIDERATIONS

THE

OPTION

OF

PERFORMING

ERROR

CHECKS

ON

THE

TRANSMISSION

OF

DATA

TO

AND

FROM

THE

PERIPHERAL

DEVICES

IS

LEFT

TO

THE

USER.

THIS

IS

DONE

BECAUSE

THERE

ARE

AVARI

ETY

OF

ERROR

CHECKING

TECHNIQUES

POSSIBLE..

DEPEN-

DING

ON

THE

TYPE

OF

DEVICE

EEING

USED

IN

THE

SYSTEM.

FOR

EXAMPLE.

A

. USER

WITH

A

PAPER

TAPE

READER

SYSTEM

MAY

ELECT

TO

P!'!OVIDE

FOR

PARITY

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