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#assembly

10 posts10 participants0 posts today

Me: 6502 is a pain, it adds some spurious memory reads, it must be used with care when operating on addresses where reads have side effects. That makes NES programming a pain. I prefer 68000 for that, it doesn't have any of those glitches.

Me: 68000 has a spurious memory read on its CLR instruction. ACIA 6850 has side-effects on reading its data register.

A little spoiler: the next part of my #commodore #assembly series melted my brain.

I try to understand where goes what between CPU and memory (including forbidden registries) and I finally learn what a databus is.

This alone makes me understand how computer go brrrr much deeper.

Release: most likely tomorrow night.