Latest version of PNut?

lostcauz

My current copy of PNut.exe is from over five years ago. Where can I find the latest version?

David Betz

You may not want the absolute newest version of PNut because that might be for the Rev B silicon. You need the version that corresponds to the Rev A silicon unless you're using an FPGA image for Rev B.

I'd also like to know where the FPGA image is that matches the Rev A silicon. Is it the most recent image in the FPGA thread? It should probably be marked to indicate that it matches Rev A before more updates are posted for Rev B.

jmg

David Betz wrote: »

You may not want the absolute newest version of PNut because that might be for the Rev B silicon. You need the version that corresponds to the Rev A silicon unless you're using an FPGA image for Rev B.

I'd also like to know where the FPGA image is that matches the Rev A silicon. Is it the most recent image in the FPGA thread? It should probably be marked to indicate that it matches Rev A before more updates are posted for Rev B.

No Rev B FPGA has been released, and I'd expect that to be clearly marked.

Any assembler needs to be able to generate both Rev A and Rev B binaries, there was talk of a variant switch in pnut, but I think in the end it managed to be (mostly?) super-set compatible ?

There were I think 2 new opcodes, for Chip's new scope ADC modes, so maybe a variant switch would help those generate errors on rev A ?

Likewise for any expanded opcodes, any Rev A miss-use should generate an error (in case someone pastes in Rev B ASM )

Dave Hein

The latest version of PNut is in the zipfile at https://forums.parallax.com/discussion/162298/prop2-fpga-files-updated-2-june-2018-final-version-32i/p1 . This is version 32i, and was posted in June before all the Rev B stuff was discussed. The previous zipfile contains version 32b, which is the one I use. I never updated to 32i, and I'm not sure why 32c through 32h were skipped.

Tubular

I think 32c through 32h were iterations of the ROM that Peter and Cluso were working on

32i is the current one

Cluso99

32i matches final silicon and extended the support for more labels - a problem we ran into when compiling v32i ROM code.

ersmith

Instead of PNut you could also use Dave Hein's p2asm or my fastspin. Both are designed to have a simple command line interface for easier integration with external tools (like IDEs).