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Re: sewage - bug fix for second sight



tsetse (tsetse@trance.helix.net) wrote:

: i wish i knew enough to identify exactly why the change was necessary.
: i am puzzled myself.
: my code uses a  LDA #$C1
:                 STA $E1C029
: to turn on super-hires mode. but as to why the second sight card was
: not seeing the softswitch access, i do not know. by typing the same
: thing directly into the monitor (ok, STA C029), second sight WOULD
: display the expected sgr screen. changing the code to do the
: LDA/STA twice in a row did however generate the desired results.
: but i don't understand why!!!! note, i initially changed all
: softswitch references from absolute to absolute long just in case
: it had to do with bank 0 being shadowed to bank e0/e1 but that
: change had no effect.

  I know why this is occurring, and we'll fix the problem for the 
next ROM/GAL release. The problem causes other odd behavior as well.

: also, i have seen so far that the second sight shadowing isn't
: perfect. i see the odd anomoly, usually as a run of pixels that are
: not correct.

  This is a bug in handling multiple palettes on a scanline, and has
been fixed and will be in the next ROM/GAL release as well. :-)

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