Things are starting to get very complicated now! This is why your Altair project is so amazing: you show hands-on, with one machine, the transformation from a useless blinking-light gizmo to a fully-capable machine running an operating system with increasingly modern features. It's amazing how far you can trace the evolution of the microcomputer world, just with this one early computer.
I spent a lot of time using amber screen CRT's in college and my first few jobs afterwards. I've often thought of picking up a VT-320 off eBay for old time sake.
I have implemented CP/M 3 on @JohnsBasement 's Z80 board, and RSX is such a useful mechanic. I wrote an RSX for access to the extended memory, and currently am working on a generic Disk tool for CPM 3 that is fully hardware independent.
Great video - really well explained and demonstrated. One slight wrinkle though, MAC would normally be thought of as the replacement for ASM, with RMAC being an extension of MAC.
Interestingly MAC was never a big hit in the day other than when macro support was a requirement. One of the biggest complaints is that the listing files from MAC were in all caps independent of the upper/lower case usage in the source file. ASM continued to be the assembler provided by Digital Research with CP/M 2.x releases until CP/M 3.0 was released.
@@deramp5113 That is interesting. I had never noticed this because I always write assembler in uppercase apart from strings which MAC does list in their original case. I wonder why they kept MAC producing uppercase listings for everything apart from strings while RMAC kept the original case.
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Things are starting to get very complicated now!
This is why your Altair project is so amazing: you show hands-on, with one machine, the transformation from a useless blinking-light gizmo to a fully-capable machine running an operating system with increasingly modern features. It's amazing how far you can trace the evolution of the microcomputer world, just with this one early computer.
This has been a great day for me, and I get to end this wonderful day by watching another captivating deramp video on the venerable Altair 8800.
The purity before all those blinky, shiny GUIs - somewhat calming
I spent a lot of time using amber screen CRT's in college and my first few jobs afterwards. I've often thought of picking up a VT-320 off eBay for old time sake.
I have implemented CP/M 3 on @JohnsBasement 's Z80 board, and RSX is such a useful mechanic.
I wrote an RSX for access to the extended memory, and currently am working on a generic Disk tool for CPM 3 that is fully hardware independent.
Really great series on CP/M ! Thank you very much!
Great video - really well explained and demonstrated. One slight wrinkle though, MAC would normally be thought of as the replacement for ASM, with RMAC being an extension of MAC.
Interestingly MAC was never a big hit in the day other than when macro support was a requirement. One of the biggest complaints is that the listing files from MAC were in all caps independent of the upper/lower case usage in the source file. ASM continued to be the assembler provided by Digital Research with CP/M 2.x releases until CP/M 3.0 was released.
@@deramp5113 That is interesting. I had never noticed this because I always write assembler in uppercase apart from strings which MAC does list in their original case. I wonder why they kept MAC producing uppercase listings for everything apart from strings while RMAC kept the original case.
oh yeah a beautiful amber terminal. My fav!
Never had the chance of using CPM3; And CPM 2.2 and MSDOS is getting stale. Good video on RSX.