[Qemu-devel] Changing QEMU to emulate a Pentium or better a 486 (for booting Windows NT 3)

[Natalia Portillo]

Is it possible to compile QEMU to emulate only a Pentium (not a Pentium 
Pro) or better, to emulate a 486?

I've tried to emulate Windows NT (3.1, 3.5 and 3.51) and all do the 
first two steps good (create a boot floppy and copying files from cd, 
boot from floppy and prepare NT installer), but the third step fails in 
VirtualPC and QEMU with a message from NT saying that it does not 
support the processor (and in Bochs, it simply hangs when going to boot 
from the hard disk, but not when going to boot from the floppy), so I 
need to get QEMU emulating a Pentium (or a 486) and not a Pentium Pro.

Any solution?

Thanks