On Fri, May 18, 2012 at 07:38:39PM +0800, Zhi-zhou Zhang wrote: > Hi Aurelien, > > I found that when qemu-system-mips64el executed 'movz' with -M mips, it > would raise a reserved instruction exception. > The mips spec describes movz as below: > > Mnemonic Instructio Defined in MIPS ISA > MOVZ Move Conditional on Zero MIPS32 > > I think ISA-64 should support MIPS32 instructions for compatible. am I > right? >
MIPS64 does support MIPS32 instructions. That said, the default CPU of the mips machine with qemu-system-mips64el is an R4000 CPU which doesn't support this instruction. You should try for example with a 5Kc, 5Kf or 20Kc CPU. -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurel...@aurel32.net http://www.aurel32.net
