.PS .nr VS \n(.v .nr PQ \n(.f .nr PS \n(.s .vs 6 .ft CW .ps 6 scale = 16/0.125 line from (192,-144) to (280,-144) "rclk<00:15>" ljust above at (24,-104) "HOLD1" rjust at (192,-88) "RCLK" ljust at (112,-104) line from (0,-104) to (112,-104) line from (0,-32) to (0,-104) line from (384,-96) to (384,-32) line from (192,-88) to (288,-88) line from (368,-96) to (384,-96) line from (192,-104) to (288,-104) "HOLD2" rjust at (192,-104) "int<00:15>-" rjust above at (280,-176) line from (192,-176) to (280,-176) "INT-" rjust at (192,-176) "bd<0:7>" ljust above at (0,-136) "A0" ljust at (112,-152) line from (112,-152) to (0,-152) "RD-" ljust at (112,-184) line from (112,-184) to (0,-184) "WR-" ljust at (112,-168) line from (112,-168) to (0,-168) "CLK" ljust at (112,-216) line from (112,-216) to (0,-216) "D?" ljust at (112,-136) line from (112,-136) to (0,-136) "opm<00:15>" center above at (152,-64) "opm" center above at (152,-72) box ht 176 wid 80 with .nw at (112,-48) line from (112,-200) to (0,-200) "CS-" ljust at (112,-200) "ba0" ljust above at (0,-152) "bwe-" ljust above at (0,-168) "bre-" ljust above at (0,-184) line from (112,-120) to (0,-120) "OE-" ljust at (112,-120) "opmdecode<00:15>-" ljust above at (0,-120) "ops<00:15>-" ljust above at (0,-200) "OUT??" rjust at (192,-144) "opmout<00:15>" rjust above at (280,-144) "hold1<00:15>" ljust above at (200,-88) "hold2<00:15>" ljust above at (200,-104) "colorburst" ljust above at (0,-216) line from (0,-32) to (384,-32) box ht 48 wid 80 with .nw at (288,-64) "A?" ljust at (288,-88) "B?" ljust at (288,-104) "Y?" rjust at (368,-96) "nor<0:3>" center above at (328,-80) "74F02" center above at (328,-88) .vs \n(VSu .ft \n(PQ .ps \n(PS .PE