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Chapter 12

LINK TECHNICAL REFERENCE

You

can

link

files totaling one megabyte. The

output

file from

the

linker (a

run

file) is not bound to specific memory addresses

and, therefore,

can

be loaded and executed

any convenient

address. The relocation information is a

list

of long addresses

that

must

change when

the

executable image is relocated

memory. See "Long References"

later

this

chapter

for

explanation.

Definitions

The following

terms

describe some of

the

functions of

the

linker.

For definitions of segment, group,

and

class, see

the

"Basic Infor-

mation" section

Chapter

11.

•

Alignment

refers to byte, word or

paragraph

segment

boundaries.

You

specify

the

alignment

assembly'

language program.

The

byte alignment tells

the

linker

can

start

a seg-

ment on any byte boundary (one segment can immedi-

ately

another).

Word

alignment tells

the

linker to

start

segments only on even addresses. Paragraph align-

ment

tells

the

linker to

start

segments only on 16-byte

boundaries.

• Combine

Type

attribute

of a segment.

tells

the

linker how to combine segments

that

have

the

same

name or

relays other information about

the

properties

of a segment. Combine types are: stack, public, private,

and

common

(see

"How

the

Linker

Combines

and

Arranges

Segments").

•

Canonical

Frame is

the

starting

address of

the

first

segment

a group of segments. Offsets

are

calculated

from

this

address.

249

Brand	Tandy
Model	1000 MS-DOS
Category	Desktop
Language	English

Tandy 1000 MS-DOS User Manual

Table of Contents

Questions and Answers:

Tandy 1000 MS-DOS Specifications

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