Re: [Qemu-devel] Commit b2a575a1c652 broke i486 support.

2017-05-31 Thread Paolo Bonzini
On 30/05/2017 21:05, Rob Landley wrote: > On 05/29/2017 05:14 AM, Richard W.M. Jones wrote: >> I see in the disassembly use of cmovne (new in Pentium Pro) and >> bswap (new in 486). >> [http://cse.unl.edu/~goddard/Courses/CSCE351/IntelArchitecture/InstructionSetSummary.pdf] >> >> The cmovne instr

Re: [Qemu-devel] Commit b2a575a1c652 broke i486 support.

2017-05-31 Thread Richard W.M. Jones
On Tue, May 30, 2017 at 02:05:15PM -0500, Rob Landley wrote: > On 05/29/2017 05:14 AM, Richard W.M. Jones wrote: > > I see in the disassembly use of cmovne (new in Pentium Pro) and > > bswap (new in 486). > > [http://cse.unl.edu/~goddard/Courses/CSCE351/IntelArchitecture/InstructionSetSummary.pdf]

Re: [Qemu-devel] Commit b2a575a1c652 broke i486 support.

2017-05-31 Thread Thomas Huth
On 30.05.2017 21:05, Rob Landley wrote: > On 05/29/2017 05:14 AM, Richard W.M. Jones wrote: >> I see in the disassembly use of cmovne (new in Pentium Pro) and >> bswap (new in 486). >> [http://cse.unl.edu/~goddard/Courses/CSCE351/IntelArchitecture/InstructionSetSummary.pdf] >> >> The cmovne instruc

Re: [Qemu-devel] Commit b2a575a1c652 broke i486 support.

2017-05-30 Thread Rob Landley
On 05/29/2017 05:14 AM, Richard W.M. Jones wrote: > I see in the disassembly use of cmovne (new in Pentium Pro) and > bswap (new in 486). > [http://cse.unl.edu/~goddard/Courses/CSCE351/IntelArchitecture/InstructionSetSummary.pdf] > > The cmovne instruction is generated by the compiler (GCC in my c

Re: [Qemu-devel] Commit b2a575a1c652 broke i486 support.

2017-05-29 Thread Thomas Huth
On 29.05.2017 12:14, Richard W.M. Jones wrote: > On Mon, May 29, 2017 at 11:22:14AM +0200, Thomas Huth wrote: >> On 28.05.2017 07:18, Rob Landley wrote: >>> You can't boot a kernel under -cpu 486 since that commit (hangs >>> producing no output) because it added a bios image that won't run on >>> a

Re: [Qemu-devel] Commit b2a575a1c652 broke i486 support.

2017-05-29 Thread Richard W.M. Jones
On Mon, May 29, 2017 at 11:22:14AM +0200, Thomas Huth wrote: > On 28.05.2017 07:18, Rob Landley wrote: > > You can't boot a kernel under -cpu 486 since that commit (hangs > > producing no output) because it added a bios image that won't run on > > anything short of pentium II. > > > > You can try

Re: [Qemu-devel] Commit b2a575a1c652 broke i486 support.

2017-05-29 Thread Thomas Huth
On 28.05.2017 07:18, Rob Landley wrote: > You can't boot a kernel under -cpu 486 since that commit (hangs > producing no output) because it added a bios image that won't run on > anything short of pentium II. > > You can try the run-emulator.sh script in > http://landley.net/aboriginal/downloads/b

[Qemu-devel] Commit b2a575a1c652 broke i486 support.

2017-05-27 Thread Rob Landley
You can't boot a kernel under -cpu 486 since that commit (hangs producing no output) because it added a bios image that won't run on anything short of pentium II. You can try the run-emulator.sh script in http://landley.net/aboriginal/downloads/binaries/system-image-i486.tar.gz before and after th