Vax 613 0S Instruction Manual download pdf (Page 67)

USER

GROUP

NEWS

Issue 3 - Vol 2

PRODUCT

PERFOR~1ANCE

NATIVE

PROG.

TOOLS

AND

TRAP-l

PRODUCT

8560, 8561

TNIX

operating system

and

trap-1

CONFIG

URATION

8560

TNIX

V2.0

Native

Language Package

PROBLEM

A trap-1 brings down tlie

operating

system when a less radical action would be

better;

ie. a program

that

accidentally writes off

the

end of

the

dimensioned array. A trap-1

is

appropriate

when invalid instructions are

encountered,

but

should

not

crash a MULTI-user system (it can

just

kill the process).

68000

MOVEC

INSTRUCTION

ERROR

PRODUCT

68000 assembler

and

bad

code for

MOYEe

instruction

CONFIGURATION

8560

TNIX

version 2.0

and

68000 assembler version 2.01-08

PROBLEM

The 68000 assembler produces

bad

code for the following instruction MOYEC with VBR

or

USP

as

the

operand.

For

example, MOYEC AQ, VBR generates 4E7B 8B01

and

should produce 4E7B 8801.

The

Motorola spec

sheet

is

wrong. This caused the assembler to produce

bad

code.

ACE

EDIT

OF

READ

ONLY

FILES

PRODUCT

ACE

editing read only

files

CONFIGURATION

8560

TNIX

V2.0,

ACE

V3.00

PROBLEM

Version 3.0 of

ACE

will

not

let a user read a

file

(with read only capability)

into

the

current

edit

session. A brief

error message (system function error

#-

13)

is

generated.

The

workaround

is

to

chmod to

rw

capability before

entering

ACE.

The

previous version of

ACE

did allow this.

COMMENTS

Workaround--chmod

to

rw capability all files before editing.

December 1983

TEKTRONIX

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