Fixed video, kbd and buzzer

cpu/bus/address_mux.bsf

@@ -0,0 +1,62 @@
+/*
+WARNING: Do NOT edit the input and output ports in this file in a text
+editor if you plan to continue editing the block that represents it in
+the Block Editor! File corruption is VERY likely to occur.
+*/
+/*
+Copyright (C) 1991-2013 Altera Corporation
+Your use of Altera Corporation's design tools, logic functions 
+and other software and tools, and its AMPP partner logic 
+functions, and any output files from any of the foregoing 
+(including device programming or simulation files), and any 
+associated documentation or information are expressly subject 
+to the terms and conditions of the Altera Program License 
+Subscription Agreement, Altera MegaCore Function License 
+Agreement, or other applicable license agreement, including, 
+without limitation, that your use is for the sole purpose of 
+programming logic devices manufactured by Altera and sold by 
+Altera or its authorized distributors.  Please refer to the 
+applicable agreement for further details.
+*/
+(header "symbol" (version "1.2"))
+(symbol
+	(rect 64 64 152 208)
+	(text "address_mux" (rect 5 0 82 14)(font "Arial" (font_size 8)))
+	(text "inst" (rect 0 128 17 140)(font "Arial" ))
+	(port
+		(pt 0 32)
+		(input)
+		(text "in1[15..0]" (rect 0 0 51 14)(font "Arial" (font_size 8)))
+		(text "in1[15..0]" (rect 21 27 72 41)(font "Arial" (font_size 8)))
+		(line (pt 0 32)(pt 16 32)(line_width 3))
+	)
+	(port
+		(pt 0 72)
+		(input)
+		(text "in0[15..0]" (rect 0 0 51 14)(font "Arial" (font_size 8)))
+		(text "in0[15..0]" (rect 21 67 72 81)(font "Arial" (font_size 8)))
+		(line (pt 0 72)(pt 16 72)(line_width 3))
+	)
+	(port
+		(pt 0 120)
+		(input)
+		(text "select" (rect 0 0 34 14)(font "Arial" (font_size 8)))
+		(text "select" (rect 5 99 39 113)(font "Arial" (font_size 8)))
+		(line (pt 0 120)(pt 16 120))
+	)
+	(port
+		(pt 88 56)
+		(output)
+		(text "out[15..0]" (rect -72 0 -19 14)(font "Arial" (font_size 8)))
+		(text "out[15..0]" (rect 24 48 77 62)(font "Arial" (font_size 8)))
+		(line (pt 88 56)(pt 72 56)(line_width 3))
+	)
+	(drawing
+		(line (pt 8 16)(pt 80 40))
+		(line (pt 8 120)(pt 48 120))
+		(line (pt 80 40)(pt 80 72))
+		(line (pt 8 16)(pt 8 96))
+		(line (pt 80 72)(pt 8 96))
+		(line (pt 48 120)(pt 48 80))
+	)
+)