PORTIBM PC Portable (uses same BIOS as XT) 9EE8-9EE9 - 8514/A and compatible - SHORT STROKE VECTORS
Desc:	specify two short-stroke vectors to be drawn one after the other
Notes:	supported by ATI Mach8 and Mach32 chipsets
	supported by S3 chipsets when PORTIBM PC Portable (uses same BIOS as XT) 03D4h register 40h bit 0 is set
	bit 12 of the command register (see PORTIBM PC Portable (uses same BIOS as XT) 9AE8h,#P1036) specifies which
	  vector is drawn first

9EE8w -W  short line vector transfer (see #P1040)


Bitfields for 8514/A short-stroke vector:
Bit(s)	Description	(Table P1040)
 15-13	second vector: drawing direction
 12	second vector: draw/move
 11-0	second vector: length in pixels (less 1)
 7-5	first vector: drawing direction
	000  zero degrees = right
	001  45 degress = up and right
	010  90 degrees = up
	...
	111 315 degrees = down and right
 4	first vector: draw/move (=0 move only, =1 draw and move)
 3-0	first vector: length in pixels (less 1)