_R_T2
#define TF_T2 _R_T2
{ "t2", (long *)&ddb_regs.r_regs[_R_T2], DB_SETF_REGS, NULL },
{ "t2", (long *)&ddb_regs.r_regs[_R_T2], DB_SETF_REGS, NULL },
gdb_regs[14] = regs->r_regs[_R_T2]; /* T2 */
gdb_regs[10] = regs->r_regs[_R_T2]; /* T2 */
tf->tf_regs[_R_T1], tf->tf_regs[_R_T2], tf->tf_regs[_R_T3]);
tf->tf_regs[_R_T2], tf->tf_regs[_R_T3], tf->tf_regs[_R_T4]);