ha! Vertical Blank Interrupts! This sounds so very 68000ish. Remember the times when we altered the 10 Bit Palette in VBlank Interrupts only to get a few more than 16 Colors onscreen! Coding bloody asm interrupts for a hand full of colors.
Hmm - this kind of surprises me, wasn't it the way there ain't no proper VBlank Interrupts on x86 machines, because they need to be polled? Well maybe I'm wrong. But I remember the developer of the MenuetOS asked me(!) how to implement a VBlank Hardware Interrupt on the x86. Seems like it's not as easy as on a Atari ST...
oops, back on topic.
EDIT - uh, wait a minute, that palette interrupt used the horizontal blank interrupt. Color cycling used the vertical.
Hmm - this kind of surprises me, wasn't it the way there ain't no proper VBlank Interrupts on x86 machines, because they need to be polled? Well maybe I'm wrong. But I remember the developer of the MenuetOS asked me(!) how to implement a VBlank Hardware Interrupt on the x86. Seems like it's not as easy as on a Atari ST...
oops, back on topic.
EDIT - uh, wait a minute, that palette interrupt used the horizontal blank interrupt. Color cycling used the vertical.