2 replies to this topic

[jbanes]

Does anyone know if accumulator mode addressing is supported by DASM? A simple example program like the following doesn't assemble due to "unresolved symbol" 'a':

	processor 6502
	org $0000

	asl a

Yet according to all the documentation I can find (example: here), accumulator addressing is supposed to be available on the ASL instruction. The LSR, ROL, and ROR instructions appear to be similarly affected. I'm using a recent Mac compile of DASM. (Whichever version that is; I can't find a reliable version number on it.) I've also tried it on Windows with the most recent version, and DASM simply fails to assemble it with the message, "More than 10 passes, something *must* be wrong!"

Any insight?

[Cybergoth]

Just remove the "a"

[jbanes]

Cybergoth, on Thu Mar 30, 2006 3:20 PM, said:

Just remove the "a"

Aaaaah, I see.

The darn 'A' is redundant, but it didn't occur to me that the DASM authors might have taken that into account. Thanks!