I very much doubt it's a reference to anything. It doesn't appear to have a useful purpose besides demonstrating/exercising a few of the important components of

I very much doubt it's a reference to anything. It doesn't appear to have a useful purpose besides demonstrating/exercising a few of the important components of the processor: it performs operations using the registers, the stack (JSR/RTS), memory (INC), and the ALU (ADC). A quick search through GitHub shows that this code is unchanged since the initial commit of the original Visual6502: https://github.com/trebonian/visual6502/blob/4d8da5b680216dcbe5705ecb831821cd6b81e479/macros.js#L2 https://github.com/trebonian/visual6502/blob/4d8da5b680216dc...