Random Retro
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In this episode, I will show unpacking and decompressing files, using the ZDE screen editor as an example. The conclusion is a small 'Hello World!' program. After editing the video, I actually found the source for the ZMAC I have been using. It comes with its own linker and documentation, but the original is packed in such a way that it would be very annoying to upload to a real CP/M system. So I repacked the files into a single .LBR for your convenience. It unpacks with DELBR, just as shown in the video. Here is the repacked ZMAC17.LBR: [1] https://github.com/Stefanie80/CodingOnCPM/blob/main/Repacked/ZMAC17.LBR [2] Tim Olmstead Memorial Library: http://www.cpm.z80.de/drilib.html [3] Z80 CPU User Manual: https://www.zilog.com/docs/z80/um0080.pdf [4] ZDE Manual: https://web.archive.org/web/20201011200840/http://sites.google.com/site/vdeeditor/Home/vde-files/zde-1-0-manual
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In this first Episode, I present some prerequisites for working effectively with a CP/M system. I assume you already have a Z80 based system running a version of CP/M. If you want to do any more than run Zork or CatChum, this series might be of interest to you. Links mentioned: [1] Z80 Retro by John's Basement on Youtube: https://www.youtube.com/playlist?list=PL3by7evD3F51Cf9QnsAEdgSQ4cz7HQZX5 [2] Xmodem for CP/M: https://github.com/Z80-Retro/xmodem80 [3] TeraTerm: https://github.com/TeraTermProject/osdn-download/releases [4] int10h Oldschool Fonts: https://int10h.org/oldschool-pc-fonts/fontlist/ [5] Humungous CP/M Archive: http://cpmarchives.classiccmp.org/
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Den Portfolio kann man relativ leicht von 4,9 MHz auf 6,5 MHz übertakten, indem man nur einen anderen Quarz einlötet. Man muss aber unbedingt einen in der Bauform "HC49U-S" nehmen, damit er ins Gehäuse passt. MHZ.COM zum ermitteln der aktuellen Taktfrequenz: https://drive.google.com/open?id=1BKg_wzjhz850f3bD-sEQpR7G_9geLAfY English version: https://makertube.net/w/eSfnJquSFRbwsWDaeFqPrR Epic Unease von Kevin MacLeod ist unter der Lizenz "Creative Commons Attribution" (https://creativecommons.org/licenses/by/4.0/) lizenziert. Quelle: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100406 Künstler: http://incompetech.com/
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The Portfolio can easily be overclocked from 4,9 MHz to 6,5 MHz by simply replacing the Quarz. You just have to make sure you have the "HC49U-S" variant, or else it won't fit in the case. MHZ.COM for measuring the CPU clock: https://drive.google.com/open?id=1BKg_wzjhz850f3bD-sEQpR7G_9geLAfY German version: https://makertube.net/w/dqUCVZh9u15UDuQMKLnQ6G Epic Unease by Kevin MacLeod is licensed under "Creative Commons Attribution" (https://creativecommons.org/licenses/by/4.0/) Source: http://incompetech.com/music/royalty-free/index.html?isrc=USUAN1100406 Artist: http://incompetech.com/
