437_Easycoder_for_the_Tape Resident_Mod_1_Operating_System_ _Software_Bulletin 437 Easycoder For The Tape Resident Mod 1 Operating System Software Bulletin

437_Easycoder_for_the_Tape-Resident_Mod_1_Operating_System_-_Software_Bulletin 437_Easycoder_for_the_Tape-Resident_Mod_1_Operating_System_-_Software_Bulletin

User Manual: 437_Easycoder_for_the_Tape-Resident_Mod_1_Operating_System_-_Software_Bulletin

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EASYCODER

FOR

THE

'-'TAPE-RESiDENT

MOD

1

OPERATING

SYSTEM

Easycoder, a powerful data processing tool for the

Series

200

computers, is designed to provide a maximum

of flexibility and power

in

programming while retaining

simplicity in manipulation. With Easycoder, the user

can

easily and efficiently prepare a wide variety of programs

for operation.

There are two versions of Easycoder for the Tape-

Resident

Mod

1 Operating System.

Each

version consists

of three elements - a symbolic language, a library proc-

essor,

and

an

assembler. Source programs written in the

symbolic language are supplemented with precoded sym-

bolic routines

by

the library processor

and

assembled

into machine-language object programs

by

the assembler.

The Easycoder symbolic language incorporates several

types of symbolic statements, using easily remembered

mnemonic operation codes

and

symbolic tags to facili-

tate actual coding of programs. The library processors

permit the user to retrieve routines from a library of

already prepared coding

by

simply issuing a call to the I

library, thereby eliminating repetitious steps in program

preparation. The assemblers, which perform the actual

translation from source to machine language, take full

advantage of large tape-storage configurations to provide

.........,

speed in operation. Various file updating functions

can

also

be

performed

by

the assemblers.

EASYCODER

SYMBOLIC

LANGUAGE

Specif!cati,ons

remain

subject

to

change

in

order

to

allow

the

introduction

~

of

deSign

Improvements.

122.110S.001C.O-437

8666

Printed

in

U.S.A.

When

ordering

this

publication

please

specify

Title

and

Under-

scored

portion

of

File

Number.

I

,

,

!

SERIES

200

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library causes a whole routine to

be

inserted

in

a sym-

bolic program .

Another means for facilitating programming is the

use

of literals. Binary, decimal, octal and alphanumeric liter-

als enable the programmer to write

in

the operands field

of a symbolic instruction the actual

data

(as

opposed to

the

address

of the field containing the data) to

be

op-

~rated

on

by

the instruction. Area-defining

and

address

!Iterals may

a.lso

be

employed.

An

area-defining literal

IS

used

to define and reserve a working area in memory

without using a separate data formatting statement.

An

ad~ress

Iiteral.enables the programmer to specify a sym-

bolic address

In

the operands field of

an

instruction in

such a way that the assembler will

use

the address

as

an

operand.

Both indexed and indirect addressing

can

be

indicated

in

Easyc.oder

symbolic language. Symbolic tags of from

two to

SIX

characters

can

be

used

with both versions of

Easycoder.

In

addition, Easycoder D allows the

use

of

ten-character tags for increased flexibility.

LIBRARY

PROCESSING

. The library processors facilitate programming

by

allow-

Ing the programmer to utilize precoded program

seg-

men.ts

(macro routines) in his program. These macro

routines,

w~ich

are stored

in

a library file for

easy

refer-

~nce,.

consist of .frequently

used

sequences of instruc-

tions

In

a

gene.rallz~d

form. The library processors accept

macro calls written

In

a source program, obtain the macro

routin.es called, specialize them according to parameters

submitted

by

the programmer, and insert them into

an

(Continued

on reverse

side)

o.AeYlrVell

'IV

ELECTRONIC

DATA

PROCESSING

Easycoder symbolic program. The library processors

can

be

used

to specialize Honeywell-supplied library routines

and/or generalized routines written

by

the user. All levels

of nested macro routines

can

be

specialized.

Another function of the library processors is the

re-

specialization of macro routines

in

an

assembled pro-

gram

on

a symbolic program tape file.

On

a subsequent

assembly run, the assembler replaces the old macro

coding with the respecialized routines generated

by

the

library processors. .

A third function of the library processors

is

the punch-

ing of symbolic decks containing entire routines

on

the

library file.

Library Processor C is

used

prior to the assembly of a

source program

by

Easycoder Assembler

C;

Library Proc-

essor D processes input to Easycoder Assembler

D.

EASYCODER

ASSEMBLERS

The user may operate the assembler in

one

of four

modes, enabling him

to

tailor his machine operation to

his exact programming

needs.

1.

Assembly. The assembly mode is

used

when a

new

symbolic program tape file

is

desired. Programs are

translated from symbolic language to machine lan-

guage and stored

on

a symbolic program tape

(SPT)

in both symbolic

and

binary form.

An

assembly

listing and a directory listing are produced. The

assembly listing shows the program in source

and

octal codes; each programming error is flagged

and

diagnosed. The directory listing shows the order of

all programs

on

the

SPT.

Both listings

can

be

re-

corded

on

tape for off-line printing

if

desired.

The binary run tape (BRT), another output of the

assembly

mode,

contains the assembled program

in machine-language format only. Programs may

be

loaded from the

BRT

Tape Loader-Monitor C or

Floating

Tape

Loader-Monitor C and executed di-

rectly, or this tape may serve

as

the input to Update

and Select C or

D.

Optionally the assembled program may

be

punched

on

a binary run deck (BRD) and loaded

for execution by

Card

Loader-Monitor

B.

2.

Selection. The selection mode makes

it

possible to

select previously assembled programs from

an

SPT

file and place them

on

a

BRT

or

BRD

in prep-

aration for execution. The selection process is con-

trolled

by

a director deck.

3.

Assembly

and

Updating. The assembly and updat-

ing mode

is

used

to keep the master

SPT

current.

In this mode, several operations

can

be

performed

on

the master

SPT

file.

New

programs can be as-

sembled

and

added to the

SPT;

obsolete programs

can

be

deleted from the file; and corrections can

be

made to individual programs

on

the tape. Assem-

"-"

bly and updating operation is controlled

by

a direc-

tor deck. Besides the updated

SPT

file, assembly

and

directory listings are produced in this mode.

Optionally, a

BRT

or

BRD

is also created.

4.

Assembly, Updating, and Selection. This mode com-

bines the functions of the first three modes in a

single run, allowing the user to assemble and add

new programs to the master

SPT

file, delete obso-

lete programs, form the tape and make corrections

to individual programs in the file.

In

addition, speci-

fied programs are selected from the file and placed

on

a

BRT

or

BRD

for execution. Both assembly and

directory listings are produced in this mode.

ADDITIONAL ROUTINES

The following utility routines, supplied

by

Honeywell,

enhance the capabilities of Easycoder.

1.

Analyzer C produces a handy cross-reference listing

of all symbolic tags, macro calls, references to index

registers, and references to absolute addresses

used

in a symbolic program.

2.

BRT

Punch

C,

a routine which converts

BRT

object

programs to cards punched in binary-run format, is

particularly useful in configurations with a small num-

ber of tape drives.

3.

Through the

use

of

SPT

Merge

C,

assembled programs

....J

from several SPT's

can

be

consolidated

on

one mas-

ter

SPT

file to permit faster and easier handling of

programs.

4.

The Update and Select programs, which are

used

to

maintain tape files of binary executable programs and

to select programs from these files for execution, en-

able the user to combine in a single run programs

originally prepared in Easycoder, Fortran, and

COBOL

languages.

EQUIPMENT REQUIREMENTS

Easycoder Assembly operates in

an

equipment con-

figuration which includes three tape drives, a card reader,

a printer, and the advanced programming instructions.

Memory requirements are

12,288

characters for Library

Processor C and Easycoder Assembler

C,

and

16,384

char-

acters for Library Processor D and Easycoder Assembler

D.

Up

to four additional tape drives

can

be

included to

allow several operations during a single run. Paper tape

equipment is optional.