mapesdhs wrote:
Pity it isn't possible to respin the tech in a modern shrunk process, stick it on a single chip card (but with the same I/O ports), allow
for Max + many options. Oh well.
off course possible but it costs human resources, the time is one of them. Developing things in fpga takes time to debug them, a lot of time, and the hardware takes more times and money.
e.g. we (a friend of mine and I) have been developing a MIPS3 softcore for 4 years, it is working, but ... it needs more effort to be "validated". I can, in the theory, synthesize the whole MIPS cpu, adding an FPU, adding peripherals, and then I might build a "system on chip" able to run "nuttx" (similar to linux but real time OS), or I can quote the OpenMIPS project and their new RISC ecosystem, but ... that RISC soft core can obtain some 150 MIPS in a Cyclone V FPGA, while the SoC version (hard CPU core, ASIC) achieves some 4000 MIPS. That's a pretty good FPGA vs. ASIC speed illustration. It makes sense when you have custom tasks, and a customer that refunds your effort.
Hobby is completely different, and practically .... it requires organization, motivation, specialization, e.g. someone has to do testbench and it's a boring activity, nobody wants for her/his hobby
cybercow wrote:
The other way would be possibly to translate GIO64 to something else
possible, but difficult, e.g. the RiscPC has a simpler bus than GIO32 (indy) and GIO64 (indigo2), it has a cheap connector, better signal integrity constraints (also because slower), but it required a lot of effort (and money) in order to interface the AGP bus. The final kit is still listed at 300 euro (with a 32Mbyte AGP card, only a few models are supported, and they must be flashed), just to plug-in a 30 euro AGP card. PCBs are expensive when the request is not in term of thousand of units, and on the software side it was difficult too, and we have sources about RiscOS (OpenRiscOS, v5/v6), while Irix is closed, it means reversing, which implies more effort, more motivation, …
uunix wrote:
and probably stuff you could get on a PI
In an imaginary "
celebrity deathmatch
" in computer science, computer against computer,
Risc PC/700
against
Raspberry PI
they both run
RiscOS
, but the PI wins 1:10, it's 10 times faster, and it costs 1:10
but … the PI misses the
voodoo
inside the
Gemini
chip inside the
Guest PC Card
so, the
fastDOSbox
(~dosBox) can't compete with the magic of "
!PC/Pro
"