Affirmed. See Mabry v. Johnson, — U.S. -, 104 S.Ct. 2543, 81 L.Ed.2d 437 (1984). Cf. State v. Borrego, 445 So.2d 666 (Fla. 3d DCA 1984) (in the absence of detrimental reliance on State’s agreement not to prosecute, defendant not entitled to specifically enforce the agreement).