Vax 613 0S Manuel d'instructions télécharger pdf (Page 80)

80/DS

FOR

TEKTRONIX

8560/61 Ul\1)ER TNIX

LPD 5660-DS8/0

The

80/PL

language contains a number of extensions

PL/M-86, including:

• Relaxation of restrictions

the ordering and factoring of items in DECLARE statements;

• Introduction of structures within structures;

• Introduction of explicitly based references;

•

Use

of the HIGH and

LOvV

builtins as assignment targets;

• Introduction of a fully-delimited IF block construct;

• Introduction of an UNDO

statement

for premature loop exits; and

• Introduction of a new scope for external

data

and procedures so

that

external items declared

included

file

may be redeclared within a module.

Compiler

Output

the

80/PC

compiler consists of a relocatable object module in either the Tektronix LAS Object

Module

Format

or the Intel

~fCS-80/85

Relocatable Object Module

Format

and, possibly, one or more error

messages. The compiler also produces source listings and symbol table listings.

Run-Time

Support

Library

Object modules produced

the compiler may call out-of-line routines to perform word and string opera-

tions. These routines reside in a library which

distributed with the

80/PC

compiler.

Avallable

DocumentatIon

A detailed description of the

80/PL

language and the

80/PC

compiler

contained in

"80/PL

Language and

80/PC

Compiler Reference Guide",

CFG

Order

No.

9201-1.

THE

SO/AS

ASSEMBLER

The

80/AS assembler assembles source modules written in the SO/AS language (generally compatible with

that

of the Intel 8080/8085 Assembly Language) into object modules for execution

the Intel 8080 and 8085

and the Zilog

Z80

microprocessors. Object modules are produced in the Intel MCS-BO/85 Relocatable Object

Module

Format.

General

Features

and

Capabllitiea

The

80/

language

sufficiently similar

Intel's 8080/8085 Assembly Language

that

most programs writ-

ten for

that

assembler should assemble correctly under

80/

with little or

modification

the source.

The

most significant area of change

the handling of assembler controls. Instead of using special control

lines beginning with a '$',

80/

uses assembler directives

that

appear in the operation field of statements.

The

80/

extensions include:

• Optional use of names up to

characters

length;

• Support of both blank and named

CO~n.10N

segments;

• Support of symbols with limited scope (local symbols); and

• Recognition of a limited set of

Z80

instructions.

Assembler

Output

The

output

of an

80/

assembly consists of:

• Possible error messages;

• A relocatable object module

the Intel MCS-80/85 Relocatable Object Module Format;

•

optional assembly listing; and

•

optional symbol table and cross-reference listing.

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Vax 613 0S Manuel d'instructions Page 80

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