moonchildintel should have only made five condition codes then the physical register file entries would be 69 bits and at hayley @h ayleypatton @halley would be much happer
Harold Aptroot@moonchild idea: stick the SPAZO group on the register, but keep C separate (it's already renamed separately)
@harold lol why's it renamed separately
@moonchild because of inc/dec
so OK it's not *always* renamed separately, but on the CPUs that don't do it, inc/dec kinda suck
@harold oh is htere nothing else except inc/dec wrt c that preserves flags? should be at least adox treating o separately; i thought there were more like inc/dec in the 'old-but-still-used' instruction space but maybe misremembering
corsix@moonchild @harold bt/btc/similar modify CF, preserve ZF, and undefined other flags, so a valid implementation could preserve all but CF
@moonchild @harold And then arm64 came along, with sane and tasteful flag behaviour, but the infinite monkeys wanted to efficiently emulate x86 on arm64, and so rmif was invented.