Trs 80 cassette software developers

While the software environment was stable and capable, the fiddly program loadsave process combined with keyboard bounce is. Radio shack introduces the exciting new computer for the 80s. Trs 80 documentation preservation pages last updated on october 8, 2000. Trs 80 cassette software showing 110 of 10 messages. The model 4 has a faster z80a 4 mhz cpu, larger video display of 80 columns by 24 rows, bigger keyboard, and can be upgraded to 128kb of ram. Connect the cassette transfer cable between the unit and your source.

I am using it to emulate a model iii with level ii basic. Its actually the sharp pc1211, sold by radio shack in the us. Thunder road adventure programmers guild diskcassette. It is compatible with model iii software and cpm application software. Please add me to your list of favorite sellers and visit often. The trs 80 maps keyboard switch states into a range of memory addresses which when read, have particular bits set for particular keys.

I originally wanted to release breakdown as a real packaged software product, with a paper manual and prerecorded cassette tape. The mire is a modern replacement for the trs 80 model i expansion interface. Trs80 in an fpga keyboard controller topten software blog. It was the best thing ever, and i was going to grow up to be a software developer starting immediately. Contribute to lkesteloottrs80 cassette reader development by creating an account on github. Trs 80 games are unique in their creative use of the semigraphics and low resolutions. Trs 80 was announced at 399 usd, or 599 with a 12 monitor and a radio shack tape recorder as data cassette storage, while its direct rivals, like commodore pet was announced at 795 usd, and apple ii was announced at 1298 usd. The trs80 cassette interface cable is comprised of 4 main parts. Designed in the great trs80 tradition, the model iii is beautiful, functional, expandable, and afforable. A collection of manuals, pamphlets, information leaflets and other materials regarding the tandy trs 80.

It spawned a career in programming that eventually led to becoming a vp of engineering at new relic. Mar 05, 2018 i originally wanted to release breakdown as a real packaged software product, with a paper manual and prerecorded cassette tape. Breakdown a new trs80 game pski software development. He brought over a couple of items that hed gotten at a clearance sale at radio shack. Tandy corporation introduced the trs80 model 4 in april 1983 as the successor to the trs80 model iii.

Feb 10, 2018 here we take a quick look at the trs 80 model 1 that i recently completed work on. The cassette gazette was a 1983 one issue advertising newsletter that was a joint production of lemons tech and kwik software. Ulcbas is the lower case driver for cassette basic. Big 80 is an implementation of a trs 80 model 1 in an fpga. This post describes the virtual cassette player that reads binary. As with the trs 80, when people first purchased their shiny system 80 it was usually as a cassette based 16 kilobyte ram machine. Zal was one of the most advanced assemblers ever written for the trs. Trs 80 was tandy corporations desktop microcomputer model line, sold through tandys radio shack stores in the late 1970s and early 1980s.

Later, it was discovered that the systems cassette tape interface could be. The lemonaid loader was a device which greatly improved the ability of the trs. If all i wanted to do was format floppies, or type in the occasional basic program, then i was golden. July radio shack introduces the trs 80 pocket computer.

The radio shacktandy corporation trs 80 color computer nicknamed coco was released in 1980, with subsequent hardware updates in 1983, and 1986. A cassette tape drive for program storage was included in the original base package, but it proved slow and fiddly in practice. The trs 80 model i with an expansion unit and a floppy disk. Bas files can be converted to cas or wav using an emulator. And as game developers embraced the trs80 and all of its technical. What development tools did game developers use in the 80s to. If the emulator can output the sound to the pc soundcard this can be connected to the model i, headphone output to the ear input.

Consequently, a lot of software was written for this vanilla. I have used the menu to insert the virtual cassette, and the emulator as expected creates a new, blank. Also included is the 250baud system tape for loading edtasm on a model 1 level 1 system. The radio shack editorassembler on cassette and william barden jrs book trs 80 assembly language programming. It also includes max 80, genie iii, lnw 80, system 80, and model 4 cpm, although those systems are incidental and are not really part of the archive. And as game developers embraced the trs80 and all of its technical limitations, hardware hacks and software tricks soon emerged to advance the. The input is a single wav file for the entire cassette both. The broad objective is to be able to use a cassette tape as inputoutput for an fpga, with the goal of working towards full compatibility with trs80 cassette tapes perhaps with a zilogcompatible softprocessor. This page is the main search page for trs 80 model i, iii, and 4 software. I was a great supporter of tandy machines, and ran the west herts trs 80 users group in the uk and am still amazed at the incredible quality of ldos operating system.

Tandy corporation introduced the trs 80 model 4 in april 1983 as the successor to the trs 80 model iii. All avoided using the trs 80 model 1 arrow keys thereby negating the missing rightarrow key problem. A quick video tutorial showing how to load software from cassette on the tandy radio shack trs 80 color computer coco in mess. It was designed by wayne lemons and sold through his company, lemons tech services. Hardware cassette ira goldklangs trs80 revived site. Indeed, adding disk drives and memory expansion often cost more than the base unit itself. This is the original trs80 first released in 1977, this machine consists of a main unit incorporating the keyboard, cpu, memory and supporting devices, and an monitor which was a rebadged rca tv from which the tuner had been removed program storage was originally by cassette tape, however a separate expansion unit was later produced which supported more. The trs 80 short for tandy radio shack z 80 was radio shacks entry into the consumer microcomputer market. The first units, ordered unseen, were delivered in november 1977, and rolled out to the stores the third week of december. This is not my own compilation, but the one from david keil. The trs80 pc1 is the firstever basicprogrammable pocketsized computer.

They are known as the model i, model ii, model iii, model 4, model 4p, model 4d, model 12, model 16 and model 6000. This is a java program that reads wav files of lowspeed 500 baud and highspeed 1500 baud trs 80 model i and model iii cassettes and generates a clean highspeed version that can be read by an emulator. How to use virtual cassettes with matthew reeds trs80 model. Ensure the emulator is configured as a 48k trs80 model 1 or system 80 machine with disk drives enabled.

Trs 80 model 100 cassette interface cable for pc kevins blog. Introduction to system 80 and trs 80 model 1 software. Nov 17, 2014 at the time when i was about to replace trs 80 model 100 nicad battery. The trs 80 micro computer system trs 80, later renamed the model i to distinguish it from successors is a desktop microcomputer launched in 1977 and sold by tandy corporation through their radioshack stores.

Connect your trs 80 cassette input to your pc soundcard. Use your pc as a cassette player for your trs 80 model iiii4 level i and ii ok, the long promised play cas fix, again. Floppydisk readers had been invented, but they were still expensive, so tandys choice for a data storage device for the trs 80 model 1 was a radioshack cassette tape playerrecorder. Its amazing what programmers have crammed into such a tiny memory. If you have the standard trs 80 cable plug the plug that normally goes into the ear output of a ccr8x into the pcs headphones output. Basic multi keyarray sort for model iv cmd microsystems software inc 1983 cobol106. It was too expensive to use an entire cassette for a single program, so youd just. Trs80 software was just as important as trs80 hardware, and at first, it had a wider selection than any other microcomputer.

This site is the result of an effort to preserve color computer software and documentation. Otherwise, i had no cheap and convenient means to get existing trs80 software transferred to a trs80 disk format so i can use it on the computer until recently. His site is gone, but most data is still present in the wayback machine. I dont have a null modem cable or any other means of saving the data. Most of the manuals available for download were then ocred and made into word 97 documents. By 1979, the trs 80 had the largest selection of software in the microcomputer market.

This driver can not be executed from basic, it must be converted to a cmd disk file using the tapediskcmd utility included in trsdos 2. I am amazed at how game developers in the 80 s managed to make highquality games such as super mario bros. System 80 trs80 emmulators trs80 clone mod i ht1080z features doc. Until 1982, the trs 80 was the bestselling pc line, outselling the apple ii series by a factor of 5 according to one analysis. Assembler source code converter for tape 124627, 1, cmd, autorun. I have used the menu to insert the virtual cassette, and the emulator as expected creates a. Howto load cassette trs80 coco games in mess youtube. As i continued to study examples in 80 micro, i showed some of these programs to my brother. The name is an abbreviation of tandyradioshack, z80 microprocessor. In spite of the trs80 s relatively cheap price, radio shacks reputation as purveyors of cheap junk for the masses did little to attract business users, and in a classic chickenortheegg scenario this lack of business users discouraged developers from porting their products from cpm to the little oddball tandy machine. Since memoy can range from 4 to 48k ram, model iii can fill a wide range of needs. I have some instant software releases id like to test and play on cassette for trs 80 model i. Radio shack tandy trs 80 micro marquee cassette software. Site contains emulators, programs, manuals, books, patches, games, hints, discussions, questions, forums, and tons more.

There arent any internal expansion capabilities, but two versions were eventually released. Please choose your search criteria from the boxes below. A quick video tutorial showing how to load software from cassette on the tandy radio shack trs 80 color computer coco in mess 64bit version. This was how many trs 80 games were sold back in the day. Does anyone know if there is a cassette based c compiler that run on trs 80 model i. The real goal is to learn as much as possible and have fun doing it. The history of the trs 80 by dale dobson radio shacks first computer was an underpowered but accessible and affordable unit and as with nearly any platform, quickly. Tandy vintage computers and mainframes for sale ebay. Software for the trs80 model iv from the trs80 archives. I have a few programs on it that i need to make a backup of before replacing the battery.

This page is a simplified version of david keils cassette software page. Welcome to the model i replacement expansion interface mire project. The gazette described the products sold by the two companies, mixed in with operational advice and interesting facts about using cassettes with your trs. This ad promoting a paltry launch selection of games and novelty programs is just as. Death dreadnaught adventure 125439, 1, cmd, the programmers guild, autorun. Im working on getting an input from a cassette for a trs 80 microcomputer of 70s vintage. Get the best deals on tandy vintage computers and mainframes and find everything youll need to improve your home office setup at.

Usage these are files which your computer or cell phone can play directly into your unit trs 80 model 100 audio software archive usage. On these pages youll find trs 80 software and hardware documentation that i have scanned. This page is the main search page for trs80 model i, iii, and 4 software. The trs80 micro computer system is a desktop microcomputer. Search the trs80 software archive ira goldklangs trs80. This is an annotated disassembly of the trs 80 level 1 rom. It is a second order high pass active filter with rolloff frequency of 2khz in a sallenkey topology with a unity passband gain, and ive used this as an input to a 555 timer with with appropriate threshold voltages. Looking for native c compiler for the trs80 model i. Despite its trs 80 heritage, the trs 80 color computer differed greatly from its predecessor with the implementation of a motorola 6890e, rather than a zilog z80 processor. Trs 80 revived site by ira goldklangs is an archive of everything related to the tandy radio shack trs 80 microcomputer lines. Software for the trs 80 model iv from the trs 80 archives. Im fooling around with matthew reeds trs 80 model 1iii4 emulator for windows trs32 and am have trouble using virtual cassettes. In mid1980, the broadly compatible trs 80 model iii was released. The tough thing about loading tapes on model i is that you need to know the loading commandfile name, particularly for games written in assmebly.

Welcome to the model i replacement expansion interface. Hardware network security cloud software development artificial. Net and windows mobile interpreter for scott adams adventure data files. It connects to the expansion port on the left rear of the model i keyboard unit. Here in the uk we also had a trs 80 model i clone called a video genie japanese which had a built in cassette recorderplayer. October radio shack begins shipping the trs 80 model ii to users. Some programmers wrote machinelanguage programs that. Radio shack customized it to the trs 80, added graphics, cassette data storage and floating point numbers. Now emulates diskbased model iii using phillips v1. A limited amount of software was available on cassette for the mc10, including lunar lander, checkers, and a machinelanguage pinball program.

Until 1982, the trs 80 was the bestselling pc line, outselling the apple ii series by a factor of five according to one analysis. Feb 01, 20 a look at the final member of the radio shack trs 80 series of computers, the tandy model 4d, sold from 1985 until at least 1990 possibly even later. Updated tuts tomb mark data products with the original cassette version with loader and fixed disk version title screen. Robot attack is a clone of the arcade game berzerk written by bill hogue and jeff konyu for the trs 80 and published by big five software in 1981. Search the trs80 software archive ira goldklangs trs. Breakdown is inspired by the classic video game breakout and to a lesser degree tetris. Due to the various trs 80 models, games were largely incompatible between systems, and as such there was no standard trs 80 game that could be played on every trs 80. As with the trs80, when people first purchased their shiny system 80 it was usually as a cassettebased 16 kilobyte ram machine. It should run on any trs80 model i, iii or 4 with 16k or more of ram. How to use virtual cassettes with matthew reeds trs80. These virtual cassettes can be run from many of the trs80 or system 80 emulators. It is generally easier to use ordinary digits for the model 1, model 2 and model 3. Consequently, a lot of software was written for this vanilla tapebased configuration. Looking at the trs 80 disk software page, theres a rather extensive selection of dos options that seem to work with the 4p and also claim high compatibility with the tandy trsdos option.

And not just any cassette one of the costly short ones designed to store. When prompted, insert the edtasm tape, set the baud rate to 500 and enter edtasm. However, as most programs written in basic for other trs 80 models were compatible with the mc10, many books with basic programs were available for the user who was willing to type in the code. Please message me if you have any questions or are looking for an item you dont see listed. This post describes the keyboard controller which processes keys through 4 simple but distinct stages. The first version offered, known as the model i, had a blackandwhite display with character mode graphics, and could not support a disk drive or more than 16k of memory without adding. There were a few programs commissioned by dick smith written specifically for the system 80.