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  Arguments
 
    interrupt_number    Integer expression representing an interrupt
                        number in the range $0..$FF (decimal 0..255)
 
    register_values     Record variable of type Registers
 
  Description
 
    The Intr procedure initiates a specified software interrupt and
    loads the registers with specified values.
 
    The interrupt_number argument specifies the software interrupt to
    be executed. Consult a DOS technical reference for information
    about interrupt numbers.
 
    The register_values argument passes and returns the values of
    hardware registers in a record of type Registers, defined in the
    Dos unit.
 
    Intr loads the values passed by register_values into the machine
    registers and generates the interrupt. It then runs the software
    interrupt handler associated with interrupt_number. After the
    interrupt handler ends, Intr copies the final register values into
    register_values.
 
    Intr cannot be used with interrupt handlers that return values in
    SP or SS on exit.
 
    The MsDos procedure operates in the same way as a call to Intr
    with an interrupt number $21.