On Thu, 25 Dec 2008, Charlie wrote:

> I've never done it that way but it looks like it should work.  Since it
> doesn't I would have to look at the bit opcode.  Somewhere in the back of my
> mind I think $C005 requires a write (someone else jump in if I'm wrong).
>
> Another remote possibility:  Are you in emulation mode (65816 emulation bit
> set)?  If not and the data bank register is set to $00 maybe that over-rides
> the $C005 softswitch.  Again my memory cells aren't what they used to be and
> I might be way off base.

I never exit 65C02 mode.  I entered the code with a CALL from BASIC and 
that's all pure 6502 (not even 'C02).

BIT does a read access, but nothing goes into any of the registers, I've 
seen BIT $C010 used a lot.

-uso.
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