NAME: Intr

     USE: Procedure to execute a specified software interrupt.  Before
          execution Intr saves the contents of the registers and loads
          them with the specified values.  After the interrupt is
          executed, these interrupts are restored to their normal
          values.

     DEPENDENCY:  The DOS unit must be used placed in the uses section.

     SYNTAX: Intr(InterruptNo : Byte; Var Regs : Register);