#0002: GR1: 0 = #0000 = 0000000000000000
#0002: GR2: 0 = #0000 = 0000000000000000
#0002: GR3: 0 = #0000 = 0000000000000000
-#0002: GR4: 124 = #007C = 0000000001111100
+#0002: GR4: 124 = #007C = 0000000001111100 = '|'
#0002: GR5: 0 = #0000 = 0000000000000000
#0002: GR6: 0 = #0000 = 0000000000000000
#0002: GR7: 0 = #0000 = 0000000000000000