Back in the day, Rockwell had a dual 6502 variant in their datebook. Two cores, each basically interleaving memory access.
The fun part about 6502 and many friends from that era was memory was direct access, bytes moving in and out every CPU cycle. In fact the CPU was slow enough that often did not happen, allowing for things like transparent DMA.
Clock a 6502 at some Ghz frequency and would there even be RAM fast enough?
Would be a crazy interesting system though.
I have a 16Mhz one in my Apple and it is really fast! Someone made a 100Mhz one with an FPGA.
Most 6502 ops took 3 to 5, maybe 7 cycles to perform.
At 1Mhz it is roughly 250 to 300k instructions per second.
1ghz would be the same assuming fast enough RAM, yielding 300M instructions per second.
I have always thought of it as adds and bit ops per second, and that is all a 6502 can really do.
The fun part about 6502 and many friends from that era was memory was direct access, bytes moving in and out every CPU cycle. In fact the CPU was slow enough that often did not happen, allowing for things like transparent DMA.
Clock a 6502 at some Ghz frequency and would there even be RAM fast enough?
Would be a crazy interesting system though.
I have a 16Mhz one in my Apple and it is really fast! Someone made a 100Mhz one with an FPGA.
Most 6502 ops took 3 to 5, maybe 7 cycles to perform.
At 1Mhz it is roughly 250 to 300k instructions per second.
1ghz would be the same assuming fast enough RAM, yielding 300M instructions per second.
I have always thought of it as adds and bit ops per second, and that is all a 6502 can really do.