diff options
Diffstat (limited to 'sys/powerpc/aim/trap.c')
| -rw-r--r-- | sys/powerpc/aim/trap.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/sys/powerpc/aim/trap.c b/sys/powerpc/aim/trap.c index 6130eab..db48e7b 100644 --- a/sys/powerpc/aim/trap.c +++ b/sys/powerpc/aim/trap.c @@ -203,9 +203,19 @@ trap(struct trapframe *frame) enable_vec(td); break; - case EXC_VECAST: - printf("Vector assist exception!\n"); - sig = SIGILL; + case EXC_VECAST_G4: + case EXC_VECAST_G5: + /* + * We get a VPU assist exception for IEEE mode + * vector operations on denormalized floats. + * Emulating this is a giant pain, so for now, + * just switch off IEEE mode and treat them as + * zero. + */ + + save_vec(td); + td->td_pcb->pcb_vec.vscr |= ALTIVEC_VSCR_NJ; + enable_vec(td); break; case EXC_ALI: |
