FRAME_T2
FRAME_T2,
{ "t2", &ddb_regs.tf_regs[FRAME_T2], FCN_NULL },
regp->r_regs[R_T2] = framep->tf_regs[FRAME_T2];
framep->tf_regs[FRAME_T2] = regp->r_regs[R_T2];
FRAME_T2,
FRAME_V0, FRAME_T0, FRAME_T1, FRAME_T2,