Memory decoding, WIP IO decoding

pat80-computer/hardware/schematics/pat80/pat80-cache.lib

@@ -37,6 +37,37 @@ X GND 7 0 -500 200 U 50 50 7 0 W
 ENDDRAW
 ENDDEF
 #
+# 74xx_74LS138
+#
+DEF 74xx_74LS138 U 0 40 Y Y 1 L N
+F0 "U" -300 450 50 H V C CNN
+F1 "74xx_74LS138" -300 -550 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ DIP?16*
+$ENDFPLIST
+DRAW
+S -300 400 300 -500 1 1 10 f
+X A0 1 -500 300 200 R 50 50 1 0 I
+X O5 10 500 -200 200 L 50 50 1 0 O V
+X O4 11 500 -100 200 L 50 50 1 0 O V
+X O3 12 500 0 200 L 50 50 1 0 O V
+X O2 13 500 100 200 L 50 50 1 0 O V
+X O1 14 500 200 200 L 50 50 1 0 O V
+X O0 15 500 300 200 L 50 50 1 0 O V
+X VCC 16 0 600 200 D 50 50 1 0 W
+X A1 2 -500 200 200 R 50 50 1 0 I
+X A2 3 -500 100 200 R 50 50 1 0 I
+X E1 4 -500 -400 200 R 50 50 1 0 I L
+X E2 5 -500 -300 200 R 50 50 1 0 I L
+X E3 6 -500 -200 200 R 50 50 1 0 I
+X O7 7 500 -400 200 L 50 50 1 0 O V
+X GND 8 0 -700 200 U 50 50 1 0 W
+X O6 9 500 -300 200 L 50 50 1 0 O V
+ENDDRAW
+ENDDEF
+#
 # 74xx_74LS32
 #
 DEF 74xx_74LS32 U 0 40 Y Y 5 L N