Expects: AX    001cH
BX    interrupt rate code: 1=none; 2=30 per sec, 4=50 per sec
8=100 per sec; 16=200 per second
                                                                  
Returns: none
                                                                  
Info: This sets the rate at which the mouse hardware will interrupt
with updated mouse positions and status.

This call is only meaningful for the Inport mouse.  Use
INT 33H 0024H to see if an Inport mouse is installed.

Increasing the number of interrupts per second provides more
accuracy for the mouse, but makes the foreground application slow
down.

- -

INT 33H 001cH: Set Inport Mouse Interrupt Rate