Ex parte Parker

*768OPINION

PHILLIPS, Judge.

This is a post-conviction habeas corpus proceeding brought under the provisions of Art. 11.07, V.A.C.C.P.

Petitioner was convicted of the offense of robbery by assault under the Old Penal Code in Cause No. 198259 using a prior conviction alleged for enhancement under Art. 62, V.A.P.C. and was sentenced to a mandatory life term in the Department of Corrections. The appeal in that conviction was affirmed in an unpublished per curiam opinion. See Parker v. State, No. 49,736 (Tex.Cr.App.1975).

Petitioner filed an application for writ of habeas corpus in the trial court,…