On 05/09/2014 10:35, Andreas Schwab wrote:
BSET is only uninterruptable at the instruction level (like all instruction, FWIW), but TAS uses an uninterruptable bus cycle, so that no other bus master can interfer.
Yes.So as long as no other bus master participates (other processor, blitter, DMA...) BSET is equivalent to TAS.
-- Vincent Rivière