FRAME_A3
tf->tf_regs[FRAME_PC], tf->tf_regs[FRAME_A3]);
DBREG(a3, FRAME_A3),
FRAME_A3,
gdb_regs[KGDB_REG_A3 ] = regs->tf_regs[FRAME_A3];
regs->tf_regs[FRAME_A3 ] = gdb_regs[KGDB_REG_A3];
copyargs[3] = framep->tf_regs[FRAME_A3];
framep->tf_regs[FRAME_A3] = 0;
framep->tf_regs[FRAME_A3] = 1;
copyargs[3] = framep->tf_regs[FRAME_A3];
framep->tf_regs[FRAME_A3] = 0;
framep->tf_regs[FRAME_A3] = 1;
regp->r_regs[R_A3] = framep->tf_regs[FRAME_A3];
framep->tf_regs[FRAME_A3] = regp->r_regs[R_A3];
tf->tf_regs[FRAME_PC], tf->tf_regs[FRAME_A3]);
tfp->tf_regs[FRAME_A3] = l->l_proc->p_psstrp; /* a3 = ps_strings */
copyargs[3] = tf->tf_regs[FRAME_A3];
tf->tf_regs[FRAME_A3] = 0;
tf->tf_regs[FRAME_A3] = 1;
FRAME_A0, FRAME_A1, FRAME_A2, FRAME_A3,
l2tf->tf_regs[FRAME_A3] = 0; /* no error */
tf->tf_regs[FRAME_PC], tf->tf_regs[FRAME_A3]);