Viewing profile — samsoniuk

The project goal is identify some missing pins from the Storey Peak Stratix V FPGA board, but can be used widely with other recycled FPGA boards! The concept is very easy: build an…

The available implementation of the OpenSPARC is too complex: a single core with 4 threads requires 59350 LUTs and runs at 62.5MHz in a Virtex FPGA (according to [1], slide 21). Al…

Almost! For most of time I work only in the simulator (Xilinx ISIM), but luckily I have lots of FPGA boards available at work too!

After two weeks, I hope most critical problems are already solved, as long more complex software is working without problems, thanks to the clear and simple RV32I instruction set! …

Yeah, I know about it! But unfortunately the 68080 is too large for my FPGA applications, which are cost driven. Other open source 680x0 projects does not work too, by the same rea…

in fact: 50% enthusiasm for the project, 50% dangerous overwork! hehehe

Well, I tested three different configurations for memory: darkriscv@75MHz cache=off 0-wait-states 2-stage pipeline 2-phase clock: 6.40us darkriscv@75MHz cache=on 3-wait-states 3-st…

I am not sure is recommendable integrate this design in a ASIC because is not so stable yet, but the synthesis tool pointed 133MHz in a Xilinx Artix-7 FPGA, running at 1 clock/inst…

hmmm... I promise investigate this topic in the future!

I think the best feature of the RISC-V instruction set is that is very clear and very simple. The RV32I instruction set is composed by ~40 different instructions and, depending of …

Good point, but unfortunately the focus of the project is only the RISC-V core running in a FPGA. Everything else is already widely available in the internet and can be easily inte…

It is not even the first RISC-V with BSD license, but I love make some GPL friends cry! ;D

I fully agree with you about the missing features! However, as long my objective is replace some legacy 680x0/683xx/coldfire processors running small toy programs, I see no need fo…

wow! I didn't expect to get so many comments and questions about my weird project! thank you all! :)