mips-dasm-filter is a MIPS disassembler filter process for GTKWave written in C. It takes 32-bit hexadecimal values on stdin and generates their MIPS mnemonic on stdout.
Example: 213104d2 -> addi $s1, $t1, 1234
It is based on Orvar Segerström's more-capable mips-disasm (which also works on files), with small tweaks to make the output more compact for waveform-based debugging.
Before
After
gcc or clang
Build using make:
make
Load the waveform with MIPS instructions in GTKWave. Right-click on the signal you want to disassemble and select "Data Format > Translate Filter Process > Enable and Select". Select the compiled mips-disasm-filter program from the chooser.
This repository also contains a collection of static filter files for the various fields of a MIPS instruction. To use those, follow the same process as above but choose "Translate Filter File".
A test suite is included to verify the correctness of the disassembler. To run it, do:
make tests
Almost all instructions except for floating point are supported.
See instructions_test.c for a complete list of supported instructions.
The code is licensed under GPLv3 - see LICENSE.txt