Fred wrote:
> Clearing random bits by ANDing with random values, to be exact.
Ah yes, I missed that.
But when you repeat this code multiple times, wouldn't then all registers
end cleared completely?
BTW: When does the code get executed? During VSYNC? I wonder, what
happens when you clear return address bits while the code is in a
subroutine (which is quite unlikly for VSYNC). Since then your are
effectively
clearing bits of the PC.
> I did try messing with the 6502 registers. Randomizing the PC or SP often
> just crashed the system. Scrambling A, X, Y, and flags by themselves
> sometimes did interesting things but weren't good at replicating known
> behaviors. I didn't try this together with clearing random bits, nor did I
> mess with the timers.
Maybe you should just clear them too?
Have fun!
Thomas
_______________________________________________________
Thomas Jentzsch | *** Every bit is sacred ! ***
tjentzsch at web dot de |
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