91–100 of 103 posts
The Z80 will always have a place in my heart. Mostly because we used it in college to build a computer from scratch on a wire board. That was an awesome project, and one of the classes that I remember fondly from nearly 18 years ago.
Oh wow, I'm getting Amstrad craving all over again.
They're still around. I've put one together over the course of years, a) for nostalgia value, and b) for my children to at least be able to use the system I learned to program on. Mine is a 464 w/ DDI interface, 64KiB RAM expansion, SDcard based "floppy" drive, mouse, and RS232 serial port. Still only a green screen, though, and I've yet to make a ROM box. Also see: https://github.com/Octoate/cpc-sdcc-rom/
Symbos is pretty cool but it's a crying shame that it's closed source. A lot of people in the z80 community don't understand the value of open source, but will give away binaries for free.
Z80 OS for a 1980s micro... wouldn't be surprised if the assembly is the source.
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A lot of people in the z80 community don't understand Don't be so patronizing. Of course they understand it, but what they want is something different from what you want: status in the demo scene. If they open source it they're likely to end up as a footnote in their own projects rather than basking on difficult-to-scale peaks among their peers. It's not like open-sourcing it is going to enrich them in some more conc…
status in the demo scene ...and since the demoscene is closely associated with the cracking/warez scene, the implicit message is always "if you want to know how it works, get a disassembler and figure it out yourself."
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Do you have any links/pointers to systems that did this?
Wrote my own for 68xx and 65xx chips in ancient times. https://en.wikipedia.org/wiki/Relocation_(computing) If you have access to the symbol table it is an easy problem to solve, if you don't it can get quite difficult all the way to impossible if the original code makes use of tricks such as jumping into the middle of an instruction. But if the code is 'well behaved' then it can usually be done. Many games used tric…
https://github.com/KnightOS/kernel/blob/master/src/00/restar...
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They're still around. I've put one together over the course of years, a) for nostalgia value, and b) for my children to at least be able to use the system I learned to program on. Mine is a 464 w/ DDI interface, 64KiB RAM expansion, SDcard based "floppy" drive, mouse, and RS232 serial port. Still only a green screen, though, and I've yet to make a ROM box. Also see: https://github.com/Octoate/cpc-sdcc-rom/
I had one of those Amstrad with green screen in the US. Sold mainly as a word processing system. My dad bought it since we couldn't afford a PC at that time. It did its job as a word processor well plus I had a great time digging into the guts of the CP/M operating system. What I really hated was that it had a 3" floppy which were hard to find.
https://blog.twitter.com/official/en_us/topics/company/2017/...
Don't let the 3" drives put you off. These days SDcard based "floppy drives" make life a lot easier:
https://hackaday.com/2016/02/28/floppy-drive-hides-sd-card-r...
I have one for my CPC. Note that in the particular case of the CPC464 (not the 664 or 6128) you'll still need the Amstrad DDI disk interface unit, as the base 464 has no disk controller built in.
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I had one of those Amstrad with green screen in the US. Sold mainly as a word processing system. My dad bought it since we couldn't afford a PC at that time. It did its job as a word processor well plus I had a great time digging into the guts of the CP/M operating system. What I really hated was that it had a 3" floppy which were hard to find.
Ah, you probably had a PCW: https://blog.twitter.com/official/en_us/topics/company/2017/... Don't let the 3" drives put you off. These days SDcard based "floppy drives" make life a lot easier: https://hackaday.com/2016/02/28/floppy-drive-hides-sd-card-r... I have one for my CPC. Note that in the particular case of the CPC464 (not the 664 or 6128) you'll still need the Amstrad DDI disk interface unit, as the base 464…
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If you need to have pictures, take landscapes.
Is this really where we are at now? Don't demonstrate any software using pictures of people, even in a niche hobbyist OS for a retro CPU architecture, just in case someone gets offended.
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I had one of those Amstrad with green screen in the US. Sold mainly as a word processing system. My dad bought it since we couldn't afford a PC at that time. It did its job as a word processor well plus I had a great time digging into the guts of the CP/M operating system. What I really hated was that it had a 3" floppy which were hard to find.
Ah, you probably had a PCW: https://blog.twitter.com/official/en_us/topics/company/2017/... Don't let the 3" drives put you off. These days SDcard based "floppy drives" make life a lot easier: https://hackaday.com/2016/02/28/floppy-drive-hides-sd-card-r... I have one for my CPC. Note that in the particular case of the CPC464 (not the 664 or 6128) you'll still need the Amstrad DDI disk interface unit, as the base 464…