Re: Robotron Tech: Lines at top of screen

jrok <jrokweb@xxxxxxxxxx> wrote:
: In this case it's caused by the game writing to the color RAM. As the original
: hardware didn't have vertical blanking the writes to the color RAM will show up
: on screen. During normal operation it's synchronized to the top of the 4msec
: interrupt so it's hidden way at the top of the screen and hidden.
: Complex fix.. add a blanking circuit (!!!) Easy fix adjust the monitor so it's
: hidden off the top of the screen ;)

Probably fixable by reprogramming the decoder ROMs too.

--
Mark Spaeth mspaeth@xxxxxxxxxxx
50 Vassar St., #38.265 mspaeth@xxxxxxx
Cambridge, MA 02139
(617) 452-2354 http://rgvac.978.org/~mspaeth

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