IBM 5100 User Manual

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The following bytes are for BASIC only:
Hex
Displacement
12-13
14-15
16
Length
2
2
Form
Address
Binary
Description
Current buffer pointer.
Not used.
Flags:
Hex
80
Hex 40
Hex 20
Hex 10
Hex 08
Hex 04
Hex 02
Hex 01
Device supports input
Device supports
output
Device is tape
Reserved
File
is open
File
is open for output
File is in use for PUT or MAT PUT
File
is a PRINT or MAT PRINT file
TAPE IOCB (FLO-FL9 - specified by user in
the OPEN statement)
Hex
Displacement
o
2
Length
1
Form
Binary
Binary
Binary
Description
Defines the device assigned
to the 10CB:
Hex
OE - Tape
Specifies subdevice:
Hex 80
Hex 40
I/O codes:
X'OO'
X'01'
X'02'
X'03'
X'04'
X'05'
X'06'
x'or
X'08'
X'09'
X'OA'
X'OB'
Built-in tape unit
Auxiliary tape unit
- Sense
- Read
- Write
- Write last
Find
Mark
Initialize and mark
Rewind
Forward space record
Backspace record
Find next header
- Write header
Language Support 6-21

IBM 5100 Specifications

General

Brand	IBM
Model	5100
Category	Laptop
Language	English