On 06/04/2010 12:19 PM, Blue Swirl wrote: > Sparc32plus would match, though the ABI does not guarantee that higher > 32 bits are preserved.
Actually, it does for %g and %o registers. See section 2.1.1. I've thought before about how to adjust the __sparcv8plus__ TCG to use full 64-bit registers and operations when required, but have not yet gotten around to it. All of sparc, mips, ppc, and s390 have a mode with 32-bit pointers running on a machine with 64-bit registers and operations available. Unfortunately the hppa linux kernel doesn't save the full 64-bit register on interrupt, so we're strictly limited to pa1.1 there, even when running on a pa2 machine. Something for the future... r~
