Proceed command

    Purpose:  Causes the execution of a subroutine call, a loop instruc-
              tion, an interrupt, or a repeat string instruction to stop
              at the next instruction.

    Format:   P [=address][value]

    Remarks:  When at a subroutine call, a loop instruction, an interrupt,
              or a repeat string instruction, issue the Proceed command to
              execute the instruction (as an atomic operation), and return
              control at the next instruction. The Proceed command has the
              same syntax as the Trace command. Specifying P0, is the same
              as specifying T0.

    Example:  If the following instructions are executed:

              0100  CALL  1000
              0103  JC    2000
              .
              .
              .
              1000  XOR   AX,AX
              .
              .
              .
              1xxx  RET

              and CS:IP was pointing to the CALL 1000h instruction, typing
              P causes the execution of the subroutine and returns control
              to DEBUG at the JC instruction.