INT 5D C - TI Professional PCIBM PC - KEYBOARD BREAK KEY VECTOR
	CF clear
	AX = 0000h
Return: CF clear
	    AX = keystroke to place into keyboard buffer
	CF set
	    AX ignored
Desc:	invoked by the keyboard ISR when Shift-BrkPause is pressed
Note:	the default handler is a simple IRET instruction
SeeAlso: INT 09"IRQ1",INT 4A/AH=00h"TI",INT 59"TI Professional"
SeeAlso: INT 5B"TI Professional",INT 5C"TI Professional"
SeeAlso: INT 5E"TI Professional",INT 5F"TI Professional"