Thank you, sir:-) I got it:-) Um... May I ask one more question? Does MIPS have macro instructions?
On 19 October 2011 23:40, Ali Saidi <[email protected]> wrote: > Some ISAs (Alpha, ARM) encode special information in the lowest bits of the > current instruction address. You don't want these bits to be used to > calculate the address, but it's important that they're there for > instructions that might consume them. > > > > Ali > > > > > > On Wed, 19 Oct 2011 22:49:52 +0800, Xuehan Xu <[email protected]> > wrote: > > Dear Sirs: > I saw the following line in the preExecute() function of the > SimpleCPU model: > > //If more fetch data is needed, pass it in. > Addr fetchPC = (pcState.instAddr() & PCMask) + fetchOffset; > > I'm a little confused, isn't pcState.instAddr() returns the address > where the instruction will be fetched? Why does it AND the PCMask? > > > > _______________________________________________ > gem5-users mailing list > [email protected] > http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >
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