Separator characters
The separator characters are spaces, tabs, and commas.
The separator characters are spaces, tabs, and commas. Commas separate operands. Spaces or tabs separate the other parts of a statement. A tab can be used wherever a space is shown in this book.
The spaces shown in the syntax of an instruction or pseudo-op are required.
Branch Conditional instructions need a separator character (space or tab) between the mnemonic and operands for unambiguous processing by the assembler.
Optionally, you can put one or more spaces after a comma, before a pound sign (#), and after a #.