Tiny basic z80. Here's a long video showing the details.

Tiny basic z80. Visual Z80 Remix. Tiny BASIC works for DOS. May 22, 2020 · Back in the early 80s I ported and repurposed Dr Dobbs Tiny Basic for the 6800 to the 6809 for a smart debug monitor (on a RS Rainbow computer) that had decimal floating point (emulation of course I recently came across Stefan Tramm’s online 8080 emulator, and I’ve modified 1K Tiny BASIC to run on it. I'm amazed in consideration of how many things *could* fail that this thing still works at all, let alone worked for 5 hours while I loaded every game I could from digital group's Tiny BASIC game collection. g. Enhanced Basic (6502) Lee Davison: 6502: 11K: Full-featured Basic for 6502 platform. zip: 5k: 04-05-13: Any Size Sprite Routines (z80) Aug 26, 2018 · Tiny BASIC Games: Volume 3 is a Released 1977 on Zilog Z80, Intel 8080 Tiny BASIC Games: Volume 6 Released 1977 on Intel 8080, Zilog Z80 アセンブラの書き方 jp. 512k. Visual 6502 Remix. Oct 11, 2013 · EMK_Z80_SYSTEM001C. The Z80 can access either RAM (memory) or IO devices (e. sprite. This is a less powerful version of TI-BASIC, but is still fairly versatile. This ZIP file contains the DOS executable, the sample games, and a text file containing the manual. KC85/3. Jun 29, 2021 · While Altair Basic was selling for $150, Tom Pittman wrote Tiny Basic for the 6800 and sold it for only $5 (don’t worry, Tom has since made it free to use). It is not a clone of anything specific, but there are suggestions of the ZX81, UK101, S100, Superboard II and Apple I in there. com and a Tiny BASIC interpreter on an EPROM. GOTO, STOP, and RETURN commands must be the last command in any given statement. zip This will create the tbdos104 directory and extract the Tiny There are currently 4 different operating systems supplied for the RC2014; BASIC, CP/M, RomWBW or Small Computer Monitor. keyboard), and this selection is made by driving MREQ or IORQ low (0V). plain - 17. I wanted to investigate writing a BASIC interpreter in assembly language and decided to fit a BASIC interpreter into 1K. This is slow enough that you can see the activity of the computer system buses if you have the computer bus display attached. Advantages of Tiny Basic Jan 2, 2024 · This project is a birthday present for the Intel 8080. The Monitor and Basic fitted into one 4 KB ROM, replacing the 2 KB monitor-only ROM. Z80 Simulator IDE is powerful application that supplies Z80 microprocessor users and educators with user-friendly graphical development environment for Windows with integrated simulator (emulator), z80 basic compiler, assembler, disassembler and debugger for the Zilog Z80 8-bit microprocessor. md Tapeout with ChipIgnite in QFN64 package, create a PCB adapter from QFN64 to DIP40 Add thorough tests for all Z80 instructions including the 'illegal' ones ZEXALL to a testbench Z80 CP/M Tiny BASIC Source code. Tiny BASIC machine code has been loaded onto a 2K EPROM for use in the CPUville Z80 computer. The computers here are simple, and presented in a way that I hope will make them easy to understand. File metadata and controls. Top. Including release dates, countries, product codes, publishers, developers and other credited companies. Sep 8, 2016 · TI BASIC was super slow because the computer first translated BASIC to GPL (Graphics Programming Language) for the VDP to run from its 16K. Programs written in ‘Tiny’ Pascal run at least four times faster than the same programs in BASIC! ‘Tiny’ Pascal is also a great way to learn Pascal programming and fun too. Aug 9, 2024 · Tiny BASIC Games: Volume 1 is a compilation featuring the following games written in Tiny BASIC Extended: Released 1977 on Zilog Z80, Intel 8080 Setting up Tiny BASIC on the CPUville Z80 computer Tiny BASIC machine code has been loaded onto a 2K EPROM for use in the CPUville Z80 computer. Z80 CPU; 8k ROM with Microsoft BASIC and SCM Monitor ROM Here you can download your own copy of the TinyBasic Programming Manual Jul 8, 2016 · My first computer was a Sinclair ZX-81 kit that was $99 in 1982. 2), including R/W SP/M disk images from Z80-MBC2. Space Battle is a Star Trek variant. The update was done so that I can add Tiny Basic to my 'BMON' monitor for the TEC-1F. Cut and paste. . Tiny BASIC with constant strings. PROGRAM A Tiny BASIC program consists of one or more statements. I've assembled the Z80 assembling listing and p Setting up Tiny BASIC on the CPUville Z80 computer Tiny BASIC machine code has been loaded onto a 2K EPROM for use in the CPUville Z80 computer. If you simply want to build an RC2014 as easily as possible, plug it in and start programming in BASIC, then the RC2014 Mini Z80 SBC would certainly be the way to go. Scanned manual This small assembler has some nice gadgets: it is a quite fast tokenizing single-pass assembler with backpatching. 2 or later); it has been designed to be as compatible as possible with Version 4 of the 6502 BBC BASIC resident in the BBC Micro Master series. This is the Tiny Basic port done by Doug Gabbard for the Z80. Then I modified a Tiny BASIC hexfile to use the new ports, and voila! got BASIC running on the Z80 :) I'll upload the circuit diagrams and Arduino code to the Files section of this project. Apr 7, 2024 · Detailed release information for Tiny BASIC Games: Volume 1. Z80 SRAM This page shows how it is possible to connect a SRAM and an EPROM in series (?) for a Z80 processor system. 1 so that means I can run Tiny Basic and save and load programs. This will set up a virtual paper tape reader, and the hex file can be read in using r ptr: Run the program using g 0 This extension provides syntax highlighting, snippets (provided by Hamburger317), and importing / exporting for the (e)Z80 TI-BASIC language (using an Emscripten build of tivars_lib_cpp courtesy of Adriweb). A good resource for the SuperSoft Tiny Pascal is Pascal, a book written by David L. Specification. tiny_basic_instructions. By ‘constant strings’, I mean strings that are defined in the BASIC program code. Contribute to bchiha/Tiny-Basic-Z80 development by creating an account on GitHub. BBC BASIC (Z80) is available in four versions: a 'generic' CP/M version, a special version for the Mar 15, 2020 · An optional EPROM with Palo Alto Tiny BASIC is available. We got a kick out of browsing the Z80 CPU; 8k ROM with Microsoft BASIC; SCM Z80 Assembler on ROM; 32k RAM; 7. if anyone can link me to a tutorial on how, or give me directions that while push me in the right direction, it'd A monitor program for basic Z80 systems, including Camel Forth and Microsoft NASCOM BASIC. Contribute to Tamakichi/ttbasic_arduino_stm32 development by creating an account on GitHub. I have corrected some minor errors and now it will work properly. Tiny Emus HALP! github ide mastodon twitter blog. Barebone - Includes 5 basic PCBs only; CPU, ROM, RAM, Clock/Reset and Serial I/O. Starter Kit - Includes 5 basic PCBs (CPU, ROM, RAM, Clock/Reset and Serial I/O), 36 strip by 30 holes, 5 x 40 pin sockets, 4 x 40 pin header and a 64k PROM with Microsoft BASIC in the first 8k bank BBC BASIC (Z80) v5 is an implementation of the BBC BASIC programming language for the Z80 CPU. --T BBC BASIC (Z80) is an implementation of BBC BASIC for Z80-based CP/M™ computers (CP/M version 2. Works perfect: Z80 Tiny Basic . PROGRAM-----A Tiny BASIC program consists of one or more statements. 7 EPROM. Assembles but untested. It’s not the only sub-1K BASIC that I’ve come across, but as far as I can see it is the most feature rich and also uses RAM efficiently. To keep prices (and the profile!) down, chip sockets, 40 pin expansion connector and 8 bank ROM selector jumpers are not included in the standard kit. Incluye muchas gráficas y links de interés. An example is this post by Gordon Henderson who made a serial interfaced Commodore Basic by creating a new variant and tweaking some conditionals, replacing the screen editor with the line editing interface of older versions. My 8080 CPU board will only see up to 4K of ROM. In very good condition, with Tiny Basic built-in. A BASIC program can be views on a terminal by listing it with the LIST command, as illustrated below. however, i cannot find a tutorial anywhere with a diagram on how to wire the necessary components to a breadboard to make a computer for this. 757 KB. Later [when?] Multitech introduced a Tiny-Basic for the MPF-1. 1 for the KIM-1 with 9 digits precision. 9-0 build 1625 (scp created Feb 10 2013 at 09:37:45 with gcc 4. Jul 3, 2020 · Latest version of this project: https://youtu. For details on using the serial interface, please consult the Serial Interface Instruction Tiny Basic. KC85/2. Contribute to BlameTroi/tinybasic-z80 development by creating an account on GitHub. Complete in original box, Monitor source listing, Multitect powersupply, German handbook, alas no Basic template. It was the extended version with an extra Z80 PIO, CTC and Tiny BASIC ROM. The TI-BASIC that comes with the TI-83, TI-83+, TI-83+ Silver Edition, TI-84+ and TI-84+ Silver Edition calculators. Software-compatible with the Intel 8080, it offered a compelling alternative due to its better integration and increased performance. %PDF-1. It was 4 chips (technically 5 if you count the 7805), that would now cost $246, for a computer with 1k of RAM, soon expanded to 32k BBC BASIC+ for Z80 This is modified source code based on BBC BASIC (Z80) by R. Z80 snapshot files; TXT files; The Z80 snapshot files usually start automatically after dropping them into the emulator. A Z80 based SBC. In 1981 Multitech released the Micro-Professor MPF-I, a Zilog Z80 microprocessor development board enclosed in a vacuum formed plastic bookcase for storage on a bookshelf. Tiny BASIC was written for the Intel 8080 processor, and 8080 machine code will almost always run on the Z80. Contribute to dpotop/Z80-hobby development by creating an account on GitHub. I created these kits in response to requests by site visitors for an simple way to Contribute to Obijuan/Z80-FPGA development by creating an account on GitHub. 7. Added full Z80-MBC2 emulation mode (inluding CP/M 2. pdf. If you have CP/M then a better version of BASIC is BASIC-80 (or MBASIC). Here's a long video showing the details. The Tiny BASIC manual is here. Tiny Z80 includes a USB to Serial converter IC on board connected to one of the SIO ports, for ease of use with modern computers. Commands in the same statement are separated by a semi-colon. Tiny Basic was developed by Palo Alto, written by Li-Chen Wang in 1976. [3] May 1, 2024 · The Z80 clone will use Tiny Tapeout 07, which leverages Skywater’s 130nm node to produce venerable chips like this one. This is the more powerful version of TI-BASIC. Heiserman and published by TAB Books in 1980. The Z80 syntax is documented in the Zilog documentation. 3728 Mhz ; 6 pin FTDI compatible header; Connect over TTL serial at 115,200bps; Add an optional Pi Zero for HDMI video output / USB keyboard input. I've also added DIR and ERASE so I can man It is a modular Z80 based retro computer kit which evokes the spirit of home computers in the late 70s and computer revolution of the early 80s. The fast clock runs at 2 MHz, which is the more TI-BASIC 83,TI-BASIC Z80 or simply TI-BASIC, is the built-in programming language for the Texas Instruments programmable calculators in the TI-83 series. Aug 19, 2023 · If you're interested in a comprehensive study of the Z80, consider the books: Build your own Z80 computer - design guidelines and application notes by Steve Ciarcia (you can also grab the PDF here or here) and Programming the Z80 by Rodnay Zaks (you can also grab PDFs here, or here or here or here). As it is quite small, and through removing the call-return overhead, it adds only a In September 2011 I somehow got the feeling that I just HAD to build a small Z80 based computer again. 2. Apr 7, 2024 · The First Book of Tiny BASIC Programs is a book containing listings of various programs in Tiny BASIC, a variant of BASIC designed specifically to use little memory on bare-bones microcomputers. UI. May 12, 2022 · The TI-BASIC that comes with the TI-89, TI 89 Titanium, TI-92, TI-92 Plus and Voyage 200 calculators. 0" at http Jun 7, 2024 · Tiny BASIC Games: Volume 6 is a compilation featuring various arithmetic drill programs and one educational game written in Tiny BASIC Extended. Apr 30, 2020 · I bought the MPF-1 in the Autumn term of my second year at college in 1984, on a weekend trip to Edinburgh. stevens • 01/02/2024 at 10:25 BASIC for the 8080 and Z80, fits in 1K of memory, runs BASIC games on a 2K system. My last homebrew Z80 was built when I was still in school (more than 20 years ago) and somehow I felt a bit nostalgic and missed the (truly) good old times when computers were small, rather simple, easy to understand and program. Jun 4, 2003 · A Tiny BASIC statement must consist of a statement number between 1 and 32767, followed by one or more commands. Tiny BASIC was intended to be a completely free version of BASIC that would run on the same early microcomputers. For details on using the serial interface, please consult the Serial Interface Instruction Tiny Basic for the Z80 Microprocessor. Jul 7, 2020 · The Z80 CPU is arguably the world's most famous CPU (central processing unit) having been used in a wide range of computers from the 1970s to the 1990s. ASM Monitor Source Code Z80 BASIC. Visual 2A03 Remix. Jan 4, 2024 · A 6502 version. A small Z80 based Single Board Computer (SBC) that can boot straight in to BASIC, FORTH or a Z80 assembler. Line 13 is the first instruction that the Z80 will execute and has the label main. Besides a data logger, spreadsheet calculator and a disassembler, a number of games are also included: An overview of the CPUville Z80 kits. 0; by li-chen wang;; modified and translated; to intel mnemonics Write basic documentation for Tiny Tapeout 07: docs/info. If MREQ is low then the Z80 is trying to access RAM and if IORQ is low then the Z80 is trying to access an IO device. be/MaolTlk7XKMI found the source code for Tiny Basic from 1976. When a direct command Aug 7, 2018 · ive been working on building a computer that runs tiny BASIC with my arduino leonardo. [ESPAÑOL] Un guía muy completa para aquellos que quieren aprender a programar en Ti-Basic para los modelos 89, 92 y v200. The slow clock runs at a few cycles per second. One kilobyte Tiny BASIC for the 8080 and Z80 Gallery created by will. Z80 Systems without alterable Memory explains how to make it more efficient than most Memory Systems. Commands in the same statement are separated by a semi-colon (";"). Z80 Source Code for Interfacing 4Mb Drams, Development System About 15 years of Z80 code ramblings including Z80 Tiny Basic. You can find a download link at his page https://retrodep SBASIC stands for "structured BASIC" and was (at least) sold with Kaypro machines. Jul 28, 2018 · One that is taking that final trajectory is [Just4Fun]’s Z80-MBC, a single board computer with only 4 ICs, using an Atmel microcontroller to simulate the Z80 support chips. It is largely compatible with Acorn's ARM BASIC V but with a few language extensions based on features of 'BBC BASIC for Windows' and 'BBC BASIC for SDL 2. Microsoft Basic for 6502: Microsoft: Apple 2, Commodore, KIM-1, OSI, and others: 8K: Basic used on several early 6502 TOYOSHIKI Tiny BASIC for Arduino STM32. This BASIC interpreter runs in 2K of ROM, and 2K of RAM is more than adequate for writing and running small programs. CPUville is dedicated to the computer electronics hobby. zip Source and binary for command line utility to upload a HEX file to the Z80 system. KB-9 stands for Microsoft Basic V1. If you simply want to build an RC2014 as easily as possible, plug it in and start programming in BASIC or Z80 assembly, then the Micro would certainly be an excellent way to go. pdf Z80 Board schematic (updated 6/21/2023) Z80MON08. A Dec 8, 2015 · TinyBASIC についての vintagechips の投稿 I used an Arduino Nano and several discrete chips to make a 4-port interface between the Z80 and a KB/display. It also supports reading FAT16 file systems (only from root directory as of now, though). I know of a couple of different Tiny BASIC versions, but they use Z80 code. Oct 22, 2007 · I know it's possible, cause my homebrewn 6802-based mochine has only 2K of RAM, and 4K EPROM, containing a very tiny BASIC, which loads into RAM at boot-time. The player flies the Mar 23, 2019 · We would like to show you a description here but the site won’t allow us. Footer Tiny Basic for the Z80 Microprocessor. Tiny Basic for the Z80 Microprocessor. With the optional new RC2014 Mini II CP/M Upgrade Kit it can run CP/M from compact flash cards. . It is not likely that 1K Tiny BASIC will fit in 1K when ported to the 6502, but it will probably fit in less than 2K, and there is currently no other 6502 Tiny BASIC that fits in less than 2K. Tiny BASIC was published in a first version with source It is mostly compatible with Easy Z80, and offers similar capabilities, including 512 KiB of battery-backed SRAM, 512 KiB Flash ROM, Z80 SIO and Z80 CTC (integrated in Z80 EIPC). ; tiny basic for zilog z80; version 2. This was because Tiny BASIC used 2-byte signed integers with a maximum value of 32,767. This computer has two clock speeds. hex file from GitHub, and drag it into the terminal window of Stefan’s emulator. 12 kB - 11/06/2021 at 01:30 Download: Basic Interpreter-8085 Tiny Basic for the Z80 Microprocessor. Donn Stewart 13917 Deviar Dr Centreville, VA 20120 dstew@cpuville. David published the sources as part of his cpmish project. This version of BASIC has SAVE and LOAD functions. (Backwards compatibility with the original CP/M Upgrade Kit has been maintained) Nov 8, 2017 · These lines are not code that the Z80 will see, but configuration data for the assembler. It knows all official Z80 opcodes and some undocumented opcodes (mainly with ''IX'' and ''IY''). "Li-Chen Wang's Tiny Basic Source Code for Intel 8080 Version 1. 4) はじめにソフトウェアー基礎コース Tiny BASIC TI-Basic Programming Guide / Manual de Programación Ti-Basic [ENGLISH] TI-Basic programming guide, only in Spanish. Perfect trainer. It's similar to COMAL (which looks like BASIC married with PASCAL), and it dislikes line numbers. ive looked up multiple tutorials on how to do this. (with BASIC and RAM modules Dec 10, 2019 · The Z80 cores themselves are a tiny amount of logic (probably ~3% of available LUTs), but the 1MB of SRAM (64KB x 16 CPUs) is pretty hard to come by unless you have a monster FPGA. The book includes the instructions for the Palo Alto Tiny BASIC, the 8080 assembly language source code and the 8080 object code. Both books have out of print for decades and Z80 SIMULATOR IDE (with z80 basic compiler) HOMEPAGE. ELF II Tiny BASIC (included games) is a cassette tape containing the Tiny BASIC language for the COSMAC ELF II. T. Tiny BASIC was released as a specification, not an implementation, published in the September 1975 issue of the PPC newsletter. (Note 2023; All software for the KIM-1 is free nowadays!) The following article some advantages and disadvantages wil be described followed by some tips for improvements and ease of use. Sep 5, 2017 · These pins are RD, WR, MREQ, and IORQ with all of these pins being outputs. The result was a request for floating-point math for the production version. When loading TAP files, after the first short loading phase, when Found [Game Name] is displayed, you can press Space to proceed to the next phase Sep 16, 2017 · Z80 RD connects to memory OE pin; Z80 WR connects to memory WE pin; Z80 MREQ connects to memory CE pin; Z80 Address pins connect to memory Ax pins; Z80 Data pins connect to memory Dx pins; RAM and ROM While the Z80 can be directly connected to a memory IC it is not entirely desirable for one reason; RAM and ROM! When the Z80 first turns on it Love this old machine - digital group computers had such a unique personality. Russell, who kindly agreed to release the original sources under the zlib license at the request of David Given. Added the CP/M drives from Z80-MBC2 and an extra drive H: that contains some old CP/M programs I had like Sargon Chess, an Aventure game and Zork. Give it a try by downloading it from >here<. Oct 21, 2016 · If you really get stuck, I converted the Z80 Tiny BASIC from a NASCOM to a CRAY-1 (in assembler)! It didn't actually take that long - and it is not really a 'tiny' BASIC anymore with 64-bit integer arithmetic and access to plenty of memory Jul 18, 2020 · Also bought a few “Superbrains” from USA, dual z80 cpu white fibreglass desktops with b/w screens dual floppy to run Pascal mt+, basic and Osborne accounting packages for clients. Included are two games written in Tiny BASIC. C64: The C64 emulation currently supports PRG and TAP files. Tic-Tack-Toe - The classic pen and paper game in which two players place marks in a three-by-three gird in an attempt to get three in a row. Nov 30, 2015 · Simple TinyBASIC computer by Z80 board (AKI-80). The included game is Chief, previously compiled in 101 BASIC Computer Games. ・basic ・tiny basic ・game80ic ・vtlz80 #lコマンドで、収容されているソフトウェアを確認することが出来ます。 basicからは、monitorコマンドでモニタに戻ります。 tiny basicからは、byeコマンドでモニタに戻ります。 game80インタプリタからは、>=3でモニタに戻ります。 Aug 26, 2018 · Tiny BASIC Games: Volume 5 is a compilation featuring the following games written in Tiny BASIC Extended: Bomber; Lunar Lander; Spacebattle; Matador; Dice; All games were previously printed in 101 BASIC Computer Games or What to do After You Hit Return, with the exception of Spacebattle. Optional 2x20 pin socket and 2x20 pin headers to connecto to Pi Zero; 40 pin expansion header. Palo Alto Tiny BASIC, Version 3 was published by People's Computer Company in their Reference Book of Personal and Home Computing. The ROM codes for these are R, K, 1, 2, 4, 6, 9, 88 or 1. 0'. - bernd-ulmann/Z The Zilog Z80 is an 8-bit microprocessor designed by Zilog that played an important role in the evolution of early computing. It is intended for use in the computer with the serial interface attached, as a substitute for the v. Jul 31, 2015 · A Z80 Tiny Basic (asm source code) Poly-88 Basic (8080 source code for a TinyBASIC) GE TeleBasic in GE-235 Assembly - Source code for one of the very first implementations of Basic for the Dartmouth Time Sharing System, 1965 Nov 24, 2021 · Full-featured Basic for 68K platform: Tiny Basic for the 68000: Gordon Brandly: 68000: 4K: Derived from and similar to Palo Alto Tiny Basic. 0番地から始まりnopを2回行った後にmain(0x0010)番地に飛んでhaltする A Tiny BASIC statement must consist of a state­ ment number between 1 and 32767 followed by one or more commands. To install the program, go to the root directory of your C: drive (or wherever you keep your applications, if elsewhere), and type: PKUNZIP -d tbdos104. It was in an end of line sale at an electronics shop that I had attended as a kid in the mid-1970s when I was at primary school in Edinburgh. Oct 19, 2019 · In this video, I will demonstrate my z80 computer running tiny basic by DOUG GABBARD. TI Extended BASIC (and various 3rd party BASICs) was Nov 24, 2023 · Complete rewrite of the Z80 emulator code, it now also supports all the undocumented features. 7 %µµµµ 1 0 obj >/OutputIntents[>] /Metadata 3254 0 R/ViewerPreferences 3255 0 R>> endobj 2 0 obj > endobj 3 0 obj >/ExtGState >/ProcSet[/PDF/Text/ImageB Aug 24, 2012 · Altair 8800 (Z80) simulator V3. See book by Rolf-Dieter Klein. To get even more power out of your RC2014 Mini, consider the RC2014 Mini CP/M Upgrade Kit . 7 - (C) 1978 Microsoft - feilipu/NASCOM_BASIC_4. When a Z80 8085 MS BASIC Version 4. AKI-80 has an integrated version of Z80 (TOSHIBA TMPZ84C015) containing Z80-SIO, PIO, CTC, and CGC just in o Oct 12, 2020 · I've got a CH376S module on the Z80 playground v1. The instruction here is in a, (0) and this causes the Z80 to select IO device 0 (the tactile switches), read the databus, and put the value seen on the databus into register A. The first MPW run is set to begin production in June 2024, with delivery This leaves only cut and paste as a means of saving and loading BASIC programs. The projects and kits here reflect my interest in basic computer hardware. The TRS-80 has a full-stroke QWERTY keyboard, the Zilog Z80 processor, 4 KB dynamic random-access memory (DRAM) standard memory, small size and desk area, floating-point Level I BASIC language interpreter in read-only memory (ROM), 64-character-per-line video monitor, and a starting price of US$600 [1] (equivalent to US$3,000 in 2023). These microcomputer kits are based on designs made popular by Steve Ciarcia in his book Build Your Own Z80 Computer, Byte Books, 1981. To run it, download the basic8080. [1] Calculators that implement TI-BASIC have a built in editor for writing programs. ASM BASIC Source Code Z80pgmr. It is probably fast compared to other Tiny BASICs because programs are Jul 31, 2023 · Although [Karl] started off with the Palo Alto Tiny BASIC-like code by [Scott Lawrence], Run time was a 16 K Z80 SBC we made, in a rack mounted Optima cabinet, Burnt Orange panels and Beige Z80 Microcomputer Kits I have for sale educational 8-bit computer kits which use the Z80 for the central processing unit (CPU). Tiny Basic deserves more appreciation as programming language than the low price makes us wonder. xdz sdap rgxmd zhwfwct cdqfy kbes ghzbgw sttsk zqejb uvj