Re: [Qemu-devel] Bug report about x86 'bt' insn

2010-11-10 Thread malc
On Wed, 10 Nov 2010, malc wrote: > On Wed, 10 Nov 2010, Torbjorn Granlund wrote: > > > malc writes: > > > > All is the keyword here, i doubt that exhaustive search was performed > > furthermore, AMDs documentation (to the best of my knowledge still) > > still maintains that ZF is undefine

Re: [Qemu-devel] Bug report about x86 'bt' insn

2010-11-10 Thread malc
On Wed, 10 Nov 2010, Torbjorn Granlund wrote: > malc writes: > > All is the keyword here, i doubt that exhaustive search was performed > furthermore, AMDs documentation (to the best of my knowledge still) > still maintains that ZF is undefined. > > AMD indeed still says undefined in their

Re: [Qemu-devel] Bug report about x86 'bt' insn

2010-11-10 Thread Torbjorn Granlund
malc writes: All is the keyword here, i doubt that exhaustive search was performed furthermore, AMDs documentation (to the best of my knowledge still) still maintains that ZF is undefined. AMD indeed still says undefined in their documentation (as of two hours ago). I have asked AMD for a

Re: [Qemu-devel] Bug report about x86 'bt' insn

2010-11-10 Thread malc
On Wed, 10 Nov 2010, Torbjorn Granlund wrote: > malc writes: > > And this one was March 2009 (conveniently having the same file name > 253666), the September 2010 issue reads differently: > > Flags Affected > The CF flag contains the value of the selected bit. The ZF flag is > unaf

Re: [Qemu-devel] Bug report about x86 'bt' insn

2010-11-10 Thread Torbjorn Granlund
malc writes: And this one was March 2009 (conveniently having the same file name 253666), the September 2010 issue reads differently: Flags Affected The CF flag contains the value of the selected bit. The ZF flag is unaffected. The OF, SF, AF, and PF flags are undefined. Have the q

Re: [Qemu-devel] Bug report about x86 'bt' insn

2010-11-06 Thread malc
On Sat, 6 Nov 2010, malc wrote: > On Sat, 6 Nov 2010, Nathan Froyd wrote: > > > On Sat, Nov 06, 2010 at 07:24:39PM +0100, Torbjorn Granlund wrote: > > > malc writes: > > > > > > ZF is undefined according to AMD's 24594.pdf page 69. > > > > > > Ah, you're right. It seems that all existing

Re: [Qemu-devel] Bug report about x86 'bt' insn

2010-11-06 Thread malc
On Sat, 6 Nov 2010, Nathan Froyd wrote: > On Sat, Nov 06, 2010 at 07:24:39PM +0100, Torbjorn Granlund wrote: > > malc writes: > > > > ZF is undefined according to AMD's 24594.pdf page 69. > > > > Ah, you're right. It seems that all existing x86 implementations leave > > ZF alone, though.

Re: [Qemu-devel] Bug report about x86 'bt' insn

2010-11-06 Thread Nathan Froyd
On Sat, Nov 06, 2010 at 07:24:39PM +0100, Torbjorn Granlund wrote: > malc writes: > > ZF is undefined according to AMD's 24594.pdf page 69. > > Ah, you're right. It seems that all existing x86 implementations leave > ZF alone, though. (I am not arguing that qeum is broken, the bug is in >

Re: [Qemu-devel] Bug report about x86 'bt' insn

2010-11-06 Thread malc
On Sat, 6 Nov 2010, Torbjorn Granlund wrote: > malc writes: > > ZF is undefined according to AMD's 24594.pdf page 69. > > Ah, you're right. It seems that all existing x86 implementations leave > ZF alone, though. (I am not arguing that qeum is broken, the bug is in > my code.) > > I apol

Re: [Qemu-devel] Bug report about x86 'bt' insn

2010-11-06 Thread Torbjorn Granlund
malc writes: ZF is undefined according to AMD's 24594.pdf page 69. Ah, you're right. It seems that all existing x86 implementations leave ZF alone, though. (I am not arguing that qeum is broken, the bug is in my code.) I apologize for the false alarm! -- Torbjörn

Re: [Qemu-devel] Bug report about x86 'bt' insn

2010-11-06 Thread malc
On Sat, 6 Nov 2010, Torbjorn Granlund wrote: > [This is a bug report, reported here since I was redirected to some > corporate site when attempting to follow the recommended bug report > practice. If I am really required to register an account with a > corporation in order to report a qemu bug, a

[Qemu-devel] Bug report about x86 'bt' insn

2010-11-06 Thread Torbjorn Granlund
[This is a bug report, reported here since I was redirected to some corporate site when attempting to follow the recommended bug report practice. If I am really required to register an account with a corporation in order to report a qemu bug, and that bug reports are not accepted here, then please