FIR Programming Language It has assembly style syntax.
Clone it or download the zip, unpack it, make sure you have python 3.7 or above, then type this in the command line (same directory where you stored it)
python fir.py <file-PATH>
Here the file is the file you want to execute.
Here is a quick example (save it as ex1.fir')
; Add two numbers
ldx 10
ldy 5
add
out a
Then run the command:
python fir.py ex1.fir