MT_RELJB | SMS.USJB - Release a Suspended Job

Release an existing job from suspension. (ok, how do I release a non-existing job then? LOL)

Call Parameters Return Register Return Parameter
D0.B $09 D0.L Error code.
D1.L Id of the job to be Released. D1.L Preserved.
A0.L Unused. A0.L Base address of released job.


Error Code Description
ERR_NJ Invalid job id.


  • All registers not shown above are not used on entry and are preserved on exit.
  • The flag byte (at the address held in JB_HOLD in the job header) will be cleared when the job is released.
  • This trap always exits via the job scheduler, so it is not atomic.


The following shows the use of this call.

        moveq   #mt_reljb,d0    ; Or MT_RELJB.
        moveq   #job_id,d1      ; Job_id is a known job id.
        trap    #1              ; Release the suspended job.