Hi, recently when I run fft program of splash2 benchmark on gem5 x86 full system, I found fft cannot work right. According to the trace file, because of some instruction unimplemented, fft stuck in infinite loop test loop, part of trace as follows: * * *fprem1 (unimplemented)* *fnstsw (unimplemented)* *test eax, 0x400* *jnz 0xfffffffffffffff5* *fprem1 (unimplemented)* *fnstsw (unimplemented)* *test eax, 0x400* *jnz 0xfffffffffffffff5* *fprem1 (unimplemented)* *fnstsw (unimplemented)* ...
and gem5 also shows: **** REAL SIMULATION **** info: Entering event queue @ 0. Starting simulation... warn: Don't know what interrupt to clear for console. warn: instruction 'fxsave' unimplemented warn: Tried to clear PCI interrupt 14 warn: Unknown mouse command 0xe1. warn: instruction 'wbinvd' unimplemented hack: be nice to actually delete the event here Writing checkpoint info: Entering event queue @ 5113183552500. Starting simulation... warn: instruction 'fnstcw_Mw' unimplemented warn: instruction 'fldcw_Mw' unimplemented warn: instruction 'fsincos' unimplemented warn: instruction 'fnstsw' unimplemented warn: instruction 'fldpi' unimplemented warn: instruction 'fadd' unimplemented warn: instruction 'fxch' unimplemented warn: instruction 'fprem1' unimplemented Is it possible to solve this problem?
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