CS/A65: A 6502 computer with USB, Ethernet and co-processors

#1

Post by amrcnimgrnt » Fri, Aug 20, 2021, 5:06 PM UTC

CS/A65: A 6502 computer with USB, Ethernet and co-processors
6502.org

Re: CS/A65: A 6502 computer with USB, Ethernet and co-processors

#2

Post by amrcnimgrnt » Fri, Aug 20, 2021, 6:04 PM UTC

Andre Fachat also wrote a pre-emptive multitasking kernel for the 6502:

http://www.6502.org/users/andre/osa/oa1.html

This is basically the same CPU as in the NES.

Re: CS/A65: A 6502 computer with USB, Ethernet and co-processors

#3

Post by the-dude » Fri, Aug 20, 2021, 6:10 PM UTC

amrcnimgrnt wrote: post #2

Andre Fachat also wrote a pre-emptive multitasking kernel for the 6502: http://www.6502.org/users/andre/osa/oa1.html This is basically the same CPU as in the NES.

And in the BBC B, Electron and Commodore 64.

Re: CS/A65: A 6502 computer with USB, Ethernet and co-processors

#4

Post by salamandersauce » Fri, Aug 20, 2021, 6:34 PM UTC

the-dude wrote: post #3

amrcnimgrnt wrote: post #2

Andre Fachat also wrote a pre-emptive multitasking kernel for the 6502: http://www.6502.org/users/andre/osa/oa1.html This is basically the same CPU as in the NES.

And in the BBC B, Electron and Commodore 64.

And Apple II and Atari 2600 and 8 bit computers.

Re: CS/A65: A 6502 computer with USB, Ethernet and co-processors

#5

Post by glonq » Fri, Aug 20, 2021, 6:49 PM UTC

Pros and cons of this versus Commander X16 ?

Re: CS/A65: A 6502 computer with USB, Ethernet and co-processors

#6

Post by skyde » Fri, Aug 20, 2021, 6:54 PM UTC

Noob her! why use a 6502 versus another 8bit cpu like Atmel AVR? Is there any advantage? Does it consume less electricity while running at similar speed ?

Re: CS/A65: A 6502 computer with USB, Ethernet and co-processors

#7

Post by vidarh » Fri, Aug 20, 2021, 6:57 PM UTC

skyde wrote: post #6

Noob her! why use a 6502 versus another 8bit cpu like Atmel AVR? Is there any advantage? Does it consume less electricity while running at similar speed ?

Nostalgia and/or familiarity.

Lots of us grew up with 6502 based machines.

Re: CS/A65: A 6502 computer with USB, Ethernet and co-processors

#8

Post by wvenable » Fri, Aug 20, 2021, 6:59 PM UTC

glonq wrote: post #5

Pros and cons of this versus Commander X16 ?

This is a home built hobby project, if you want one you're going to have to source the parts yourself, create the PCBs, and build it. And it will mostly be one of a kind. It's a fun project if that's what you're into. I'm building a 6502 computer much less involved than this one.

The Commander X16 will be more of completed commercial project where the appeal is more using the computer to write software than building the computer itself.

Re: CS/A65: A 6502 computer with USB, Ethernet and co-processors

#9

Post by wvenable » Fri, Aug 20, 2021, 7:02 PM UTC

skyde wrote: post #6

Noob her! why use a 6502 versus another 8bit cpu like Atmel AVR? Is there any advantage? Does it consume less electricity while running at similar speed ?

More fun/interesting and more potential to be actual computer.

Probably the main advantage of a 6502 is more RAM/EEPROM (as 8bit microcontrollers are pretty limited that way) and more of a hardware/software ecosystem to work with.

Re: CS/A65: A 6502 computer with USB, Ethernet and co-processors

#10

Post by the-dude » Fri, Aug 20, 2021, 7:04 PM UTC

skyde wrote: post #6

Noob her! why use a 6502 versus another 8bit cpu like Atmel AVR? Is there any advantage? Does it consume less electricity while running at similar speed ?

I assume memory lanes.