In Firefox, the "Preprocessor Test" example puts all the numbers in a single line if assembled when UART is disabled

[FlatAssembler]

In Firefox (I haven't tested it in other browsers), if the "Preprocessor Test" example is being assembled while UART is disabled, its output looks like this:

And if it is being assembled while UART is enabled, its output looks like this:

This appears to be causing the problem:

PicoBlaze_Simulator_in_JS/preprocessor.js

Line 169 in 4c01066

document.getElementById("UART_OUTPUT")

However, I haven't succeeded to produce a minimal reproducible example (not due to a lack of trying).

[FlatAssembler]

I have started a thread about this on AtheistForums.

[FlatAssembler]

I have started a thread about this on Reddit.