psuedo hires mode always starts off

[jeffythedragonslayer]

I've noticed that sometimes when the SNES comes out of reset, psuedo hires mode is on and I have to manually turn it off by clearing bit 3 of SETINI or else I get black vertical lines on the screen.

BSNES does not appear to accurately implement this behavior as I never get these black vertical lines when testing these ROMs that lack the STZ SETINI in it.

[jeffythedragonslayer]

Fullsnes states that the initial value of SETINI is "00h?" It sounds like we need to probe the hardware more to figure out when this port starts out nonzero