SPARC: 64-bit integers?

[David Jones]

Does the SPARC-10 CPU support 64-bit integers in a single hardware register?
If not, will the next SPARC rev?

Gcc seems to implement 64-bit ints as a pair of registers.

(Please reply directly to djo...@lightning.mcrcim.mcgill.edu)

thanks,
dj

-------------------------
long long xor(a,b)
long long a, b;
{
return a^b;
}
-------------------------
gcc2_compiled.:
.text
.align 4
.global _xor
.proc 05
_xor:
xor %o0,%o2,%o0
xor %o1,%o3,%o1
retl
sub %sp,-0,%sp % <-- Is this really necessary???