INT 62 u - FGDRIVER v4.02 - "FG_SHEAR" - SHEAR UNPACKED BITMAP
	AX = 00B7h
	ES:BX -> variable pointer record (see #03502)
	CX = bitmap width (0 < width <= 1024)
	DX = bitmap height (0 < height <= 1024)
	SI = size of resulting image (width for horiz. shear, height for vert.)
	DI = shear type
	    0000h horizontal shear to left
	    0001h horizontal shear to right
	    0002h vertical shear to left (left edge stretched up)
	    0003h vertical shear to right (right edge stretched up)
Return: nothing
Note:	the FGDRIVER functions are rearranged with each major release, but
	  their parameters do not change (see #03474)
SeeAlso: AX=00A3h


Format of FGDRIVER SHEAR variable pointer record:
Offset	Size	Description	(Table 03502)
 00h	WORD	segment of source bitmap
 02h	WORD	offset of source bitmap
 04h	WORD	segment of buffer for resulting bitmap
 06h	WORD	offset of buffer for resulting bitmap