FPLWP
STPTR %l2, [%l1 + %lo(FPLWP)]; /* Restore old fproc */ \
sethi %hi(FPLWP), %l1; \
LDPTR [%l1 + %lo(FPLWP)], %l2; /* Load fplwp */ \
STPTR %l5, [%l1 + %lo(FPLWP)]; /* Set new fplwp */ \