On 06/24/2018 06:46 AM, Programmingkid wrote: >> Even in your referenced PDF, table 3-13, it says that frD is unmodified. > > Actually it says when FPSCR[ZE] is set is when frD is unmodified. When > FPSCR[ZE] is not set it frD's sign is determined by an XOR of the signs of > the operands. I have verified that this is what happens on real PowerPC 750 > and 950 CPUs.
Of course. When ZE is not set, 1 / 0 -> inf (and -1 / 0 -> -inf, etc). But ZE not set is not the topic of discussion, or the subject of your patch. > I was just wondering are you able to run a PowerPC operating system in QEMU > in KVM mode on this Power7 computer? Sadly not. KVM is not enabled in this setup. r~
