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<title>Kevin Boone: Z80</title>
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<h1>Z80</h1>
<div class="article-desc"><img class="article-list-image" src="img/terminal.png"/><a href="collapseos.html">Is Collapse OS really a practical proposition?</a><p>Is it really possible to design an operating system for a computer built from scavenged parts after civilization has failed?</p><p style="font-size: smaller">Categories: <a href="retrocomputing-groupindex.html">retrocomputing</a>, <a href="Z80-groupindex.html">Z80</a></p>
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<div class="article-desc"><img class="article-list-image" src="img/terminal.png"/><a href="cpicom.html">Running CP/M on the Raspberry Pi Pico microcontroller</a><p>This article introduces CPICOM -- an emulator for CP/M 2.2 on the Raspberry Pi microcontroller.</p><p style="font-size: smaller">Categories: <a href="retrocomputing-groupindex.html">retrocomputing</a>, <a href="Pico-groupindex.html">Pico</a>, <a href="C-groupindex.html">C</a>, <a href="Z80-groupindex.html">Z80</a></p>
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<div class="article-desc"><img class="article-list-image" src="img/terminal.png"/><a href="cpm-c.html">Getting back into C programming for CP/M</a><p>This article is about how programming for CP/M, usng a 40-year-old C compiler, differs from modern C development, even for console applications.</p><p style="font-size: smaller">Categories: <a href="retrocomputing-groupindex.html">retrocomputing</a>, <a href="C-groupindex.html">C</a>, <a href="Z80-groupindex.html">Z80</a></p>
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<div class="article-desc"><img class="article-list-image" src="img/terminal.png"/><a href="cpm-c2.html">Getting back into C programming for CP/M -- part 2</a><p>Using the 1989 HI-TECH C compiler on CP/M, and some general observations about CP/M programming with real hardware.</p><p style="font-size: smaller">Categories: <a href="retrocomputing-groupindex.html">retrocomputing</a>, <a href="C-groupindex.html">C</a>, <a href="Z80-groupindex.html">Z80</a></p>
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<div class="article-desc"><img class="article-list-image" src="img/terminal.png"/><a href="cpm-delays.html">The vexed problem of generating delays in a CP/M program</a><p>CP/M has no timing or delay functions, because CP/M never stipulated that compatible hardware have any kind of clock. So how do we implement short (fractions of a second) delays in a CP/M program?</p><p style="font-size: smaller">Categories: <a href="retrocomputing-groupindex.html">retrocomputing</a>, <a href="Z80-groupindex.html">Z80</a></p>
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<div class="article-desc"><img class="article-list-image" src="img/z80.jpg"/><a href="cpm.html">CP/M resources</a><p>A landing page for my various CP/M articles and utilities.</p><p style="font-size: smaller">Categories: <a href="Z80-groupindex.html">Z80</a>, <a href="retrocomputing-groupindex.html">retrocomputing</a></p>
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<div class="article-desc"><img class="article-list-image" src="img/z80.jpg"/><a href="cpm40.html">CP/M forty years on -- what it was, and why it still matters</a><p>Why was the CP/M operating system so successful? Forty years on, why should we care?</p><p style="font-size: smaller">Categories: <a href="retrocomputing-groupindex.html">retrocomputing</a>, <a href="Z80-groupindex.html">Z80</a></p>
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<div class="article-desc"><img class="article-list-image" src="img/terminal.png"/><a href="cpmserial.html">Serial device mapping in CP/M</a><p>CP/M only recognized four serial devices. How did application cope when more than four serial ports were installed?</p><p style="font-size: smaller">Categories: <a href="retrocomputing-groupindex.html">retrocomputing</a>, <a href="Z80-groupindex.html">Z80</a></p>
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<div class="article-desc"><img class="article-list-image" src="img/z80.jpg"/><a href="cpmzork.html">Playing Zork 1 on a CP/M emulator on Linux</a><p>In the last few years there has been a revival of interest in 8-bit microcomputers from the 70s and 80s. Many of these were based on the Zilog Z80, and many ran CP/M. This article about getting started with CP/M using an emulator on Linux.</p><p style="font-size: smaller">Categories: <a href="general_computing-groupindex.html">general computing</a>, <a href="retrocomputing-groupindex.html">retrocomputing</a>, <a href="Z80-groupindex.html">Z80</a></p>
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<div class="article-desc"><img class="article-list-image" src="img/terminal.png"/><a href="cwordle.html">cwordle -- A Wordle-like word-guessing game for CP/M</a><p>Building a CP/M implementation of the notorious Wordle game.</p><p style="font-size: smaller">Categories: <a href="retrocomputing-groupindex.html">retrocomputing</a>, <a href="C-groupindex.html">C</a>, <a href="Z80-groupindex.html">Z80</a></p>
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<div class="article-desc"><img class="article-list-image" src="img/terminal.png"/><a href="kcalc-cpm.html">Developing KCalc-CPM -- a scientific calculator utility for CP/M</a><p>My first CP/M program for nearly 40 years -- how, and why, I wrote it.</p><p style="font-size: smaller">Categories: <a href="retrocomputing-groupindex.html">retrocomputing</a>, <a href="C-groupindex.html">C</a>, <a href="Z80-groupindex.html">Z80</a></p>
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<div class="article-desc"><img class="article-list-image" src="img/terminal.png"/><a href="kermit.html">Using a CP/M machine to log into a Linux server using an RS232 connection</a><p>Because -- why not?</p><p style="font-size: smaller">Categories: <a href="retrocomputing-groupindex.html">retrocomputing</a>, <a href="Z80-groupindex.html">Z80</a></p>
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<div class="article-desc"><img class="article-list-image" src="img/z80.jpg"/><a href="punycpm.html">Writing new interactive fiction games for CP/M using PunyInform and Linux</a><p>It's still possible to write text adventure games for CP/M and other small, vintage computers. Here is one approach, using Linux as the development platform.</p><p style="font-size: smaller">Categories: <a href="retrocomputing-groupindex.html">retrocomputing</a>, <a href="Z80-groupindex.html">Z80</a></p>
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<div class="article-desc"><img class="article-list-image" src="img/chip.png"/><a href="rc2014-fdc.html">Adding a floppy disk controller to my RC2014 Z80 system</a><p>No 80s computer is complete without the chucka-chucka-chucka sound of a floppy disk drive doing its thing.</p><p style="font-size: smaller">Categories: <a href="electronics-groupindex.html">electronics</a>, <a href="Z80-groupindex.html">Z80</a>, <a href="retrocomputing-groupindex.html">retrocomputing</a></p>
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<div class="article-desc"><img class="article-list-image" src="img/chip.png"/><a href="rc2014-rs232.html">Designing a dual 5V-to-RS232 serial level converter for the RC2014</a><p>Using an RC2014-based retrocomputer with genuine RS232 peripherals requires support for voltage level conversion. Although converter modules are inexpensive and widely available, I wanted to design something that would plug into an RC2014 backplane, just for neatness.</p><p style="font-size: smaller">Categories: <a href="electronics-groupindex.html">electronics</a>, <a href="Z80-groupindex.html">Z80</a>, <a href="retrocomputing-groupindex.html">retrocomputing</a></p>
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<div class="article-desc"><img class="article-list-image" src="img/chip.png"/><a href="rc2014-rtc.html">Some thoughts on a DS1302 real-time clock board for RC2014/Z80 and CP/M</a><p>Constructing and programming a real-time clock board for my Z80 CP/M system</p><p style="font-size: smaller">Categories: <a href="C-groupindex.html">C</a>, <a href="electronics-groupindex.html">electronics</a>, <a href="Z80-groupindex.html">Z80</a>, <a href="retrocomputing-groupindex.html">retrocomputing</a></p>
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<div class="article-desc"><img class="article-list-image" src="img/chip.png"/><a href="rc2014-ym2149.html">Constructing and programming a YM2149 sound board my RC2014 Z80 system</a><p>An 80's-style 8-bit computer has to be cable of making 80's 8-bit sound. In this article I describe adding a sound board to my RC2014 system.</p><p style="font-size: smaller">Categories: <a href="electronics-groupindex.html">electronics</a>, <a href="Z80-groupindex.html">Z80</a>, <a href="retrocomputing-groupindex.html">retrocomputing</a></p>
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<div class="article-desc"><img class="article-list-image" src="img/chip.png"/><a href="rc2014.html">Adventures with RC2014, Z80, and CP/M</a><p>This is a landing page for my various articles on building a period-appropriate CP/M system using the RC2014 bus.</p><p style="font-size: smaller">Categories: <a href="Z80-groupindex.html">Z80</a>, <a href="retrocomputing-groupindex.html">retrocomputing</a></p>
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<div class="article-desc"><img class="article-list-image" src="img/chip.png"/><a href="rc2014_files_linux.html">Exchanging files between an SC130 CP/M board and a Linux system</a><p>This article describes a couple of methods for sharing data and code between a CP/M system with RomWBW BIOS and a Linux system.</p><p style="font-size: smaller">Categories: <a href="C-groupindex.html">C</a>, <a href="electronics-groupindex.html">electronics</a>, <a href="Z80-groupindex.html">Z80</a>, <a href="retrocomputing-groupindex.html">retrocomputing</a></p>
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<div class="article-desc"><img class="article-list-image" src="img/chip.png"/><a href="rc2014_romwbw_flash.html">Updating, building, and flashing RomWBW on an SC130 CP/M system</a><p>A step-by-step guide to building and installing a modified version of the RomWBW firmware on a CP/M Z80 board.</p><p style="font-size: smaller">Categories: <a href="Z80-groupindex.html">Z80</a>, <a href="retrocomputing-groupindex.html">retrocomputing</a></p>
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<div class="article-desc"><img class="article-list-image" src="img/z80.jpg"/><a href="z80asmtest.html">Multi-source Z80 assembly programming for CP/M</a><p>How to use Microsoft's Macro80 and Link80 utilities on CP/M, to build a program consisting of multiple assembly-language files.</p><p style="font-size: smaller">Categories: <a href="retrocomputing-groupindex.html">retrocomputing</a>, <a href="Z80-groupindex.html">Z80</a>, <a href="assembly-groupindex.html">assembly</a></p>
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<div class="article-desc"><img class="article-list-image" src="img/pi.png"/><a href="z80pg.html">A self-contained CP/M computer based on the Z80 Playground</a><p>This article describes how to create a self-contained CP/M-based microcomputer using a Z80 single-board computer, a Raspberry Pi Zero, and some assorted electrical parts.</p><p style="font-size: smaller">Categories: <a href="Z80-groupindex.html">Z80</a>, <a href="retrocomputing-groupindex.html">retrocomputing</a></p>
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<span class="last-updated">Last update Jan 08 2025
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