NOTE
All magazines on this page are downloadable, thanks to Roy Soltoff and Tim Mann.
LDOS Quarterly – Volume 1, Issue 1
Issue Information:
(Logical-Systems-Inc)[Jul-1981].jpg)
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Publisher:
Logical Systems Inc
Table of Contents
1
Announcing Percom Doubler Support
3
Update News – LDOS 5.0.2
3
Items Of General Interest
4
On The Trail Of The Elusive Parity Error
5
Data Address Marks by Roy Soltoff
7
The 800 Number – Attention All Users
12
Linking To LDOS In Assembly
13
Using Clock Speedup Kits With LDOS
20
User Contributed Programs
22
PENCTL/FLT – Keyboard filter program will allow Electric Pencil owners to use the LDOS keyboard driver and the original Pencil control key. This program was contributed by Tim Mann.
22
MX80/FLT – Printer filter program will allow the MX-80 printer to directly print TRS-80 graphics with the JKL,GRAPHIC parameter. It was contributed by Ken Roser.
22
BEEP/FLT – Keyboard filter will output a “beep” tone to the cassette port each time a key is pressed. It was contributed by Tim Mann.
23
UPDATE/BAS – LBasic program will allow you to update your LDOS working disks after you have sent in your Master disk for an update. It will copy only those programs which already exist on the working disk. It was contributed by Tim Mann.
24
FAST/CMD – Program to allow LX-80 interface owners to use a fast clock modification without hardware modification of the LX-80 interface. It was contributed by Tim Mann.
24
USRFREE/CMD – Short utility that can be called as a USR routine from LBasic, and will return the amount of free K on a disk. An empty or missing disk will return a zero. To make a program module, use the DEBUG command to enter the program into memory at the desired location, and then use the dump command to save it to disk. Do not use the BINHEX/BAS program on this module! To call this USR routine, use the syntax “X=USR1(drivespec)”. This routine was contributed by Chuck Jensen.
24
UPCASE /FLT – General filter for use with any device (*KI, *DO, *PR, *CL, etc.). It will convert all characters to upper case. This should be useful for those without lower case conversions. It was contributed by Tim Mann.
24
PDUBL/CMD – Percom Doubler Driver to allow you to use the Percom Doubler II double density modification with LDOS.
26
DCAL/BAS – Program to allow you to check your disk drive motor speed. It runs only on the Radio Shack expansion interface. Contributed by Tim Mann.
LDOS Quarterly – Volume 1 Number 2
Issue Information:
(Logical-Systems-Inc)[Oct-1981].jpg)
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Title:
LDOS Quarterly Volume 1 Number 2
Publisher:
Logical Systems Inc
LDOS Quarterly – Volume 1 Number 3
Issue Information:
(Logical-Systems-Inc)[Jan-1982].jpg)
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Title:
LDOS Quarterly Volume 1 Number 3
Publisher:
Logical Systems Inc
LDOS Quarterly – Volume 1 Number 4
Issue Information:
(Logical-Systems-Inc)[Apr-1982].jpg)
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Title:
LDOS Quarterly Volume 1 Number 4
Publisher:
Logical Systems Inc
LDOS Quarterly – Volume 1 Number 5
Issue Information:
(Logical-Systems-Inc)[Jul-1982].jpg)
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Title:
LDOS Quarterly Volume 1 Number 5
Publisher:
Logical Systems Inc
LDOS Quarterly – Volume 1 Number 6
Issue Information:
(Logical-Systems-Inc)[Oct-1982].jpg)
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Title:
LDOS Quarterly Volume 1 Number 6
Publisher:
Logical Systems Inc
LDOS Quarterly – Volume 2 Number 1
Issue Information:
(Logical-Systems-Inc)[Jan-1983].jpg)
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Title:
LDOS Quarterly Volume 2 Number 1
Publisher:
Logical Systems Inc
LDOS Quarterly – Volume 2 Number 2
Issue Information:
(Logical-Systems-Inc)[Apr-1983].jpg)
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Title:
LDOS Quarterly Volume 2 Number 2
Publisher:
Logical Systems Inc
LDOS Quarterly – Volume 2 Number 3
Issue Information:
(Logical-Systems-Inc)[Jul-1983].jpg)
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Title:
LDOS Quarterly Volume 2 Number 3
Publisher:
Logical Systems Inc
LSI Journal – Volume 2 Number 4
Issue Information:
(Logical-Systems-Inc)[Oct-1983].jpg)
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Title:
LSI Journal Vol 2 No 4
Publisher:
Logical Systems Inc
LSI Journal – Volume 2 Number 5
Issue Information:
(Logical-Systems-Inc)[Jan-1984].jpg)
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Title:
LSI Journal Vol 2 No 5
Publisher:
Logical Systems Inc
LSI Journal – Volume 2 Number 6
Issue Information:
(Logical-Systems-Inc)[Apr-1984].jpg)
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Title:
LSI Journal Vol 2 No 6
Publisher:
Logical Systems Inc