Using ca65 with foreign source

DASM

Incomplete DASM compatibility settings:

dasm.s
.feature	labels_without_colons
.feature	leading_dot_in_identifiers
.macro		processor	type
	.p02
.endmacro
.define		org		.org
.define		.asm
.macro		include		file
	.include	.concat(.string(file), ".asm")
.endmacro