I'm retired, so I have time for various vintage computer projects.

The IBM System/360 (1964) had instructions to convert a character string to packed decimal, and to convert packed decimal to binary. This was motivated by the large amount of punch-card data that was handled back then, with all the numbers in decimal. But I guess Intel figured that string conversion wasn't common enough in modern systems to merit adding it to the instruction set.

Prime minicomputers had decimal arithmetic in microcode & hardware in the early 80's to support PL/I and COBOL "picture" data types and packed decimal. They also had sophisticated editing to pictures like ZZZ,ZZ9.99 which would display 1024 as 1,024.00

These instructions were also implemented in PMA, the Prime Macro Assembler, in the OS so that if a machine didn't have these instructions, a UII fault occurred and the instruction was simulated in software. I implemented a lot of the easier instructions in C in the Prime emulator, but for the more complex things like decimal math, I let those fault so the Prime OS would handle them.

I think the Fairchild Microflame works better for barbecue :-)

https://en.wikipedia.org/wiki/Fairchild_9440

AAD is lower on the list since it is both complicated and kind of obscure. Also, it depends on multiplication and division, so I want to cover them first.