Backup quarterback Danny White, saying, "I'll do anything I can to help this team," became the Cowboys' $550,000 punter yesterday and old nemesis wide receiver Harold Carmichael joined the team he used to love to beat.

Dallas also signed wide receiver Waddell Smith, a former Canadian Football League star, and cut barefoot punter Jim Miller.

Carmichael signed a one-year contract and Smith, 29, signed a two-year deal with a one-year option. Money terms were not announced.

Carmichael, who'll be 36 later this month, was the all-time leading receiver for the Eagles and usually had notable games against Dallas. The Cowboys broke his NFL record streak of 127 consecutive games with a reception when cornerback Dennis Thurman knocked him out on Dec. 21, 1980 . . .

Franco Harris has signed a one-year contract with the Seattle Seahawks, and is expected to play in Sunday's game against the San Diego Chargers even though he has gone through only one workout.

Harris, 34, is 363 yards away from becoming the NFL's all-time rushing leader. He was chosen to replace injured running back Curt Warner . . .

Gary Kubiak, the other second-year quarterback with the Denver Broncos, will start against the Chicago Bears on Sunday, but a decision has not been made whether injured regular John Elway will play, Coach Dan Reeves said.