Quote from: andycadley on Yesterday at 21:11Ok, so it's the Rhino in Sabre Wulf, as well as issues with Ghost and Goblins and speed lock games, but the principle is the same: emulating this stuff actually makes a difference some times.Quote from: Prodatron on Yesterday at 21:06Is there any reason why you should know about these undocumented bits in the F-register beside to develop a 100% correct Z80 emulator?On the Spectrum, at least, the werewolf goes in the wrong direction if you don't emulate them correctly. Apparently a programmer accidentally took advantage of them.
I never understood why this was necessary to know. Does it have any advantages for making code better/faster/shorter? Does anyone have an example for this? Or is this just for fun (which includes detecting, if a Z80 emu is cool or not).
Quote from: Prodatron on Yesterday at 21:06Is there any reason why you should know about these undocumented bits in the F-register beside to develop a 100% correct Z80 emulator?On the Spectrum, at least, the werewolf goes in the wrong direction if you don't emulate them correctly. Apparently a programmer accidentally took advantage of them.
I never understood why this was necessary to know. Does it have any advantages for making code better/faster/shorter? Does anyone have an example for this? Or is this just for fun (which includes detecting, if a Z80 emu is cool or not).
bit 7 6 5 4 3 2 1 0
flag SF ZF YF HF XF PF NF CF
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