T_UNIMP_INSTR
trap(rp, NULL, T_UNIMP_INSTR, 0);
fpu_trap(rp, pfpsd->fp_trapaddr, T_UNIMP_INSTR, 0);
case T_UNIMP_INSTR + T_USER: /* illegal instruction fault */
(type == T_UNIMP_INSTR));
case T_UNIMP_INSTR: /* priv illegal instruction fault */
case T_UNIMP_INSTR + T_USER: /* illegal instruction fault */
case T_UNIMP_INSTR:
case T_UNIMP_INSTR: