The //e doesn't have an MMU. There are just soft switches, addresses in the $C03x range you hit to switch banks of RAM. Works the same as the Language Card on the Apple][.
Click…
68kMLADevelopmentby Dog CowSun, 13 Sep 2009 - 18:36
Anyone heard of LUnix? Unix on a C64 - page seems a bit old though. And uCLinux ideas might be helpful about getting around lack of MMU.
EDIT: Doh...didn't remember that LUnix ha…
The //e doesn't have an MMU. There are just soft switches, addresses in the $C03x range you hit to switch banks of RAM. Works the same as the Language Card on the Apple][.
About t…
Anyone heard of LUnix? Unix on a C64 - page seems a bit old though. And uCLinux ideas might be helpful about getting around lack of MMU.
EDIT: Doh...didn't remember that LUnix h…
At a minimum, the pinouts have to be remapped. The first 20 pins of the Disk II & Disk III seem to be identical in function, suggesting that the 6 remaining Disk III pins a…
I am pretty sure that the Disk ][ connects to a set of pins on the back of the ///.The blue port all the way on the left is where it would go.
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Um, nope. That…
I waited before I replied in case I was wrong, but I am pretty sure that the Disk ][ connects to a set of pins on the back of the ///.
See this pic: http://www.digibarn.com/collec…
68kMLADevelopmentby Dog CowMon, 31 Aug 2009 - 22:40
There is a little bit of info on the Disk III and its use on a III+ here:
http://www.vintagemacworld.com/drives.html
but as for the Disk II, vintage photos show Apple employees w…
68kMLADevelopmentby david__schmidtMon, 31 Aug 2009 - 22:12
No, it was 16bit but could address 256Mb of memory with 18 address lines. A 6502 has 16 address lines but that doesn't make it a 16bit computer. If you went by that argument an 808…
68kMLADevelopmentby ChristTrekkerFri, 21 Aug 2009 - 18:04
The PDP-7 was an 18-bit machine.
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No, it was 16bit but could address 256Mb of memory with 18 address lines. A 6502 has 16 address lines but that doesn't make …
68kMLADevelopmentby porterFri, 21 Aug 2009 - 00:57
The PDP-7 was an 18-bit machine. Has a "real Unix" ever been developed for any 8- or 16-bit machine? Doesn't seem a big stretch to run in 16 bits.
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The orig…
68kMLADevelopmentby porterThu, 20 Aug 2009 - 23:35
isnt the GS 16 bit?
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The WDC 65816 (also: 65C816), a 16-bit microprocessor CPU developed by the Western Design Center (WDC), is an expanded and compatible suc…
68kMLADevelopmentby ChristTrekkerMon, 17 Aug 2009 - 22:22
Ah, but that would be the easy route, plus there's already GNO/ME.
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Bah, that's like MachTen or Mac06 on the Mac. Doesn't count!
Targetting the GS first…
68kMLADevelopmentby ChristTrekkerMon, 17 Aug 2009 - 21:01
csa2p
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Took me a bit to figure out what that meant.
Sounds to me like targetting the IIgs, because it has the most resources, including a built-in source…
68kMLADevelopmentby ChristTrekkerFri, 14 Aug 2009 - 22:31
I think you might be underestimating the requirements for a UNIX like OS. An 8Mhz 68000 struggles, so how a 6502 is supposed to cope I'm not sure.
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Is it more…
Might want to investigate Minix. It's designed for teaching OS design, so even if a porting effort failed, it would be an educational fail . It is to some extent unix-like.
…
Might want to investigate Minix. It's designed for teaching OS design, so even if a porting effort failed, it would be an educational fail . It is to some extent unix-like.
OK, maybe I'm just talking to myself by now, but I found this site in Linux Journal magazine: http://www.freertos.org/
There's no port for the 6502/Apple yet, but I'm going to tak…
68kMLADevelopmentby Dog CowMon, 27 Jul 2009 - 02:34