On 2015-10-15, at 09:26, John McKown wrote: > > Going beyond that, I have often wanted a "execute next instruction on > condition". I.e. check the CC value, like a branch does, if the condition > is TRUE, then execute the next instruction, otherwise skip it. ... > Data General NOVA. The CC was not saved in the PSW, but every RR instruction contained a CC mask governing skipping the next instruction. Plus one flag bit suppressing loading the destination register when the programmer intended only to test CC. Any RR instruction with Don't Store, Never Skip could be used as a no-op.
-- gil
