Re: Steal RAM -- Question

["sicklittlemonkey" <Nick.Westgate@gmail.com>]

mmphosis wrote:
> The STA instruction on a 6502 will access the memory location twice.

Sorry, but that's wrong. STA ABS performs _one_ write. The common
misapprehension comes from the 6502 instruction used by the Applesoft
or Integer Basic POKE commands: STA (ZP),Y which  does strobe twice.

> Or, using a single store instruction, should accomplish the same thing:
>     STA $C081 ; LC Card RAM bank2, Read ROM instead of RAM, WR-enable

Nope. Check out Understanding The Apple II, page 5-28.
You'll be surprised how tricky this area really is. ;-)

Cheers,
Nick.