[stella] Platform Game - VSYNC

Subject: [stella] Platform Game - VSYNC
From: David Conrad Schweinsberg <david@xxxxxxxxxxxxxxxxxxx>
Date: Sat, 11 Oct 1997 10:45:43 +0100

My VSYNC code looks like this:

start_vblank        subroutine
    ldy    #$02
    lda    #$00

    sty    WSYNC
    sty    VSYNC

    sty    WSYNC
    sty    WSYNC
    sty    WSYNC

    sta    VSYNC

    sty    VBLANK

Which is correct, yes?  What else makes the picture roll?  I know that the
frame is a few lines to tall - but this wouldn't matter on a PAL television
would it?


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