More Goodies For Your

TRSLINK is the new disk-based magazine dedicated to providing continuing information for the TRS-80. A new issue is published monthly, featuring Public Domain programs, Shareware, articles, hints & tips, nationwide ads, letters, and more. TRSLINK can be obtained from your local TRS-80 BBS, or download it directly from 8 n l 4 (215) 848-5728 (Philadelphia, PA.) Sysop Luis Garcia-Barrio

An Introduction To Zbasic

Compiled programming languages have been around for years on large computer systems, but got off to a rocky start in the early days of micro computing. Now they are becoming very inexpensive, easy to use, and practical on MS DOS computers. I wonder how many TRS-80 owners realize such a thing exists for us also It is the ZBASIC compiler from Zedcor. I have been using it on my Model 4 (in both Model III and Model 4 modes ) for over 3 years now with great success and enjoyment. In this article I...

Info

This line is useless in Assembly language. We don't need it. Basic line 820 PRINT LO,STRING (34.95) the cursor location is already set in register HL by the caller. We save it on the stack and proceed to draw a line of chr (95)'s with the same type of DJNZ loop we used to erase the fields above. The difference, of course, is that now we store 95 in the location pointed to by HL. Finally, we restore the cursor position by POPping it back into HL. 03140 Basic line 830 L 0 this is the character...

Mulxid O S

I first heard about MULTIDOS back in '81. At the time, I had a TRS-80 model I and had just bought a bare expansion interface, that extra black box with all the goodies. Being an experimenter, I decided that, in addition to adding memory chips, I should buy a couple of disk drives and so I wound up looking for a friendly DOS to operate them. Back then, there were quite a few DOSes on the market and I started reading any system reviews I could find. What I discovered was that MULTIDOS had three...

Hardware

The drive I am using began life as a universal package by Xebec with a SCSI Small Computer System Interface. The bubble is a Quantum Q540 with 8 heads, 512 tracks and an ST506 interface. The power supply is a linear unit. The original hard disk controller HDC was a Xebec S141 OA. All of the above was contained in a neat package about 6-1 2 wide, 5 high, and about 15 long. An internal fan takes care of the cooling. A power cable and a 50 line ribbon cable come out the rear, and that's it. Since...