3 Commits

Author	SHA1	Message	Date
Jake Burkholder	8c93421144	Emulate ldq and stq (load/store long double) instructions. GCC has started ... using these to load long doubles, but they aren't implemented in hardware on (at least) UltraSPARC I and II machines. Emulate popc in the user trap handler as well. Re-arrange slightly to make support functions more accessible. Reviewed by: tmm	2002-04-27 21:56:28 +00:00
Jake Burkholder	d1497824f0	Add space for %fsr and %tstate to utrapframe. Save them in the generic ... user trap entry code. Restore %asi and %ccr from the saved %tstate before returning to the trapping user code. Submitted by: tmm	2002-02-23 19:00:30 +00:00
Jake Burkholder	6ce4e876a7	Add libc side of user trap handling. ... Add support for handling floating point disabled traps mostly in userland for the simple single threaded case. Not yet enabled by default. Implement __sparc_utrap_install as specified by the sparc abi.	2002-01-01 21:58:32 +00:00