I honestly had no idea what this instruction is just by reading the title. While reading I had the „aha“ moment of: „wait a minute that sounds like decimal mode

I honestly had no idea what this instruction is just by reading the title. While reading I had the „aha“ moment of: „wait a minute that sounds like decimal mode on the 6502“. I had to wrap my had around this once I tried to write an emulator for it (I didn’t end the project but I wasn‘t far off). I wondered about the use-cases but was too far down the well on how to implement it correctly to check for the history. Interesting to know that Intel etc had to keep a two step solution unlike the 6502 with its decimal mode flag. The posts example code makes more sense then the 6502 docs did back then. But it could also be cause I have an understanding about the problem it solves. Decimal mode didn’t click for me in the beginning because my brain tried to overcomplicate the idea of decimal mode :)