20-03-2024, 07:08 PM
Thanks for the encouragement guys.
Mr Lurch - good to see you here too. Hope you are doing well.
Chesh - The Dragonball is actually a part on the board rather than a softcore within the FPGA. I was initially trying to use a MC68000 compatible core within the FPGA, but I wasn't happy with the
performance, and more than that, it made it more complicated for the [FPGA] logic design to pass [meet] timing constraints - the 2 problems actually go hand in hand.
I initially looked at putting a coldfire processor on it (like on the Premium Plus coreboard), but the instruction set (even though it came out of the M68K set) is not compatible, so software is not as easy to
come by, so an M68k Softcore or the Dragonball Super VZ (physical part) processors were the options I went with. CP/M 68K shouldn't be hard to get going on it, and there are some other OS's that I'll
be investigating as well.
Mr Lurch - good to see you here too. Hope you are doing well.
Chesh - The Dragonball is actually a part on the board rather than a softcore within the FPGA. I was initially trying to use a MC68000 compatible core within the FPGA, but I wasn't happy with the
performance, and more than that, it made it more complicated for the [FPGA] logic design to pass [meet] timing constraints - the 2 problems actually go hand in hand.
I initially looked at putting a coldfire processor on it (like on the Premium Plus coreboard), but the instruction set (even though it came out of the M68K set) is not compatible, so software is not as easy to
come by, so an M68k Softcore or the Dragonball Super VZ (physical part) processors were the options I went with. CP/M 68K shouldn't be hard to get going on it, and there are some other OS's that I'll
be investigating as well.