>(Here, for the “illegal” opcodes, we use the mnemonics used by the DASM and ACME assemblers, with the exception of “USBC” for instruction code $EB, where these use plain “SBC”.)
6502 assembly code is more sleek and beautiful and perfectly justified than most other assembly code, because all the opcode mnemonics are exactly three letters.
In comparison, assembly code in other CPU instruction sets looks so rough and messy, like the code was torn off along the right edge.
Kudos to the authors of that guide for respecting the lovely three letter convention for the illegal opcode mnemonics.
6502 assembly code is more sleek and beautiful and perfectly justified than most other assembly code, because all the opcode mnemonics are exactly three letters.
In comparison, assembly code in other CPU instruction sets looks so rough and messy, like the code was torn off along the right edge.
Kudos to the authors of that guide for respecting the lovely three letter convention for the illegal opcode mnemonics.