INT 49 - SYSTEM DATA - NON-KEYBOARD SCAN-CODE TRANSLATION TABLE (PCjr)

Format of translation table:
Offset  Size    Description
 00h    BYTE    number of nonkeyboard scancodes in the table
 01h  N WORDs   high byte 00h (NUL) byte scancode with low order byte
                representing the scancode mapped values relative to their
                input values within the range of 56h through 7Eh