> You shouldn't need to add any new operands to just change the width, > you can use the type prefix. I think the way it's supposed to work is > that all instructions in MIPS64 use the wide integer registers, and it's > set up so it just works out for the 32 bit instructions. You -would- > need to do something special for 64 vs. 32 bit FP registers since those > might need to be combined/expanded differently. You could build that > intelligence into filterDoubles. >
If I'm not mistaken, Matt is talking about a special circumstance where a MIPS32 program would be using a 64-bit FPU (or are we talking MIPS64 the whole time?). If that is the case, you would need something special since as you noted above right? If it's a MIPS64 program I would assume that your FPU would be 64-bit as well so no problem there... -- - Korey
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