Microdex Bookshelf

MOD-4 by CHRIS for TRS LS-DOS 6.3 24.95 MOD-III by CHRIS for LDOS 5.3 24.95 MOD-III by CHRIS for TRSDOS 1.3 24.95 Beautifully designed owner's manuals completely replace obsolete Tandy and LDOS documentation. Better organized, with more examples, written in plain English, these books are a must for every TRS-80 user. JCL by CHRIS Job Control Language 7.95 Surprise, surprise We've got rid of the jargon and JCL turns out to be simple, easy, useful and fun. Complete tutorial with examples and...

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The first byte, '5E', contains the file type, its visibility and protection level. In binary this is 01011110 and we'll write it as 0 1 0 1 1 110 to make it easier to break it down. Bits 0-2 are the protection level. In this case, it is 6 (EXECute only). Bit 3 is the visibility bit. A '1' means that the file is invisible, as in this case. If bit 4 is a '1', the file is an active file and has a corresponding HIT entry. Bit 5 is usually '0', but if it should be a '1', it means that the file has a...

Pd

CMDJDEMO BAS, CMDJDEMO DOC - learn how to use cmdJ - newdos. COPYCATD ASM, COPYCATD CMD, COPYCATD DOC - unprotect copycat - and move it to a cmd file. DATECOMP ASM, DATECOMP CMD - compress the date format in your programs. DBLPREC BAS, DBLPREC DOC - double precision demo. SCRPRT BAS, SCRPRT CMD, SCRPRT DOC, SCRPRT1 CMD - screen printer for Model l lll. SZAP80 ASM, SZAP80 CMD, SZAP80 DOC - patch superzap to work in 80 column mode - newdos 80. VARLST ASM, VARLST CMD, VARLST DOC - list variables...

Boot

This letter is for Adam Rubin, if he is tuned in, of if he cannot be reached, for you, Lance, and your readers. I am sure there are others interested in this subject. BOOT5 CMD is written by Adam Rubin, and published in the Misosys Quarterly V.iv, p.29. In Computer News 80, December '91 issue 4,12 , the Open Forum, p.91, Arthur McAninch made the same appeal. I have seen no response in the CN80 since. Art says that Adam Rubin's address on COMPUSERVE is CIS 71320.1052. I am using LS-DOS 6.3.1 and...

So Whats

The LDOS amp LS-DOS Reference Manual It was a little better than a year ago that Roy Soltoff of Misosys, Inc. brought us the long awaited upgrade to our Model 4 DOS, now becoming LS-DOS 6.3.1. A short time thereafter, to make Model l l 11 and 4 machines as compatible as possible, Mr. Soltoff also brought out upgrades to Model I and III LDOS, each becoming version 5.3.1. While these, without a doubt, are the finest DOSes our machines have ever worked with, a problem crept up. Actually, this...

Fileosophy

To me, the MS-DOS world seems to discourage most users from programming. That's because virtually everything we need to do has already been done. This may be good for people who use computers only for a specific task, or for those hobbyists who only like to work with specific applications on their machines. However, for COMPUTER hobbyists from the golden age of computing, ie., the beginning - or whenever we decide when the golden age was or will be , the inevitably sorry condition we have...

The Trsdos Directory

This article will describe and explain the important features of the Model III TRSDOS directory. It is quite similar in most respects to the Model I directory, except for the way in which the DOS SYSTEM files are handled. As in the Model I, the directory is located on Track 17 11H , and occupies the entire track. Because of the Model Ill's double density format, this amounts to 18, 256 byte sectors. The first sector 0 contains the Granule Allocation Table GAT , the diskette Master Password...