Now I want to design a RISC cpu for study the cpu architecture, and I am puzzled about how to start? Whether should I start with a RISC 16 bit cpu, including just serveral instructions like add, substract, multiply and divide? And I wonder whether I should introduce the pipeline and superscalar into the architecture?
Try reading about the DLX and looking at the code for the OpenRISC.
This is usually a good starting point.
It's not really a RISC if it's not pipelined. I'd save superscalar for another day, if this is your first effort.
Cheers, Jon
The Lattice Mico8 is open source, & FPGA optimised, so makes a good starting point - and you are free to move it to any fabric, or extend it. It is also quite similar to the PicoBlaze. (which is not open source?)
-jg
Hi,
PicoBlaze is open source. MicroBlaze is not.
JaaC
Is There any recommended book which includes RISC cpu examples for me to start with? I think follow with samples is more efficient.
The best place for you to start is
Enjoy!!
Philip
Philip Freidin Fliptronics
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