txxclock.bdf

VHDL编写的数字钟

		(output)
		(text "y" (rect 0 0 7 12)(font "Arial" ))
		(text "y" (rect 27 68 39 75)(font "Arial" )(vertical))
		(line (pt 32 96)(pt 32 80)(line_width 1))
	)
	(drawing
		(rectangle (rect 16 16 80 80)(line_width 1))
	)
	(flipy_rotate90)
)
(symbol
	(rect 232 128 328 224)
	(text "selector" (rect 0 53 12 91)(font "Arial" )(vertical))
	(text "inst5" (rect 80 65 92 88)(font "Arial" )(vertical))
	(port
		(pt 32 96)
		(input)
		(text "a" (rect 0 0 5 12)(font "Arial" ))
		(text "a" (rect 27 70 39 75)(font "Arial" )(vertical))
		(line (pt 32 96)(pt 32 80)(line_width 1))
	)
	(port
		(pt 48 96)
		(input)
		(text "b" (rect 0 0 5 12)(font "Arial" ))
		(text "b" (rect 43 70 55 75)(font "Arial" )(vertical))
		(line (pt 48 96)(pt 48 80)(line_width 1))
	)
	(port
		(pt 64 96)
		(input)
		(text "s" (rect 0 0 5 12)(font "Arial" ))
		(text "s" (rect 59 70 71 75)(font "Arial" )(vertical))
		(line (pt 64 96)(pt 64 80)(line_width 1))
	)
	(port
		(pt 32 0)
		(output)
		(text "y" (rect 0 0 7 12)(font "Arial" ))
		(text "y" (rect 27 21 39 28)(font "Arial" )(vertical))
		(line (pt 32 0)(pt 32 16)(line_width 1))
	)
	(drawing
		(rectangle (rect 16 16 80 80)(line_width 1))
	)
	(rotate90)
)
(symbol
	(rect 600 120 696 216)
	(text "selector" (rect 0 53 12 91)(font "Arial" )(vertical))
	(text "inst8" (rect 80 65 92 88)(font "Arial" )(vertical))
	(port
		(pt 32 96)
		(input)
		(text "a" (rect 0 0 5 12)(font "Arial" ))
		(text "a" (rect 27 70 39 75)(font "Arial" )(vertical))
		(line (pt 32 96)(pt 32 80)(line_width 1))
	)
	(port
		(pt 48 96)
		(input)
		(text "b" (rect 0 0 5 12)(font "Arial" ))
		(text "b" (rect 43 70 55 75)(font "Arial" )(vertical))
		(line (pt 48 96)(pt 48 80)(line_width 1))
	)
	(port
		(pt 64 96)
		(input)
		(text "s" (rect 0 0 5 12)(font "Arial" ))
		(text "s" (rect 59 70 71 75)(font "Arial" )(vertical))
		(line (pt 64 96)(pt 64 80)(line_width 1))
	)
	(port
		(pt 32 0)
		(output)
		(text "y" (rect 0 0 7 12)(font "Arial" ))
		(text "y" (rect 27 21 39 28)(font "Arial" )(vertical))
		(line (pt 32 0)(pt 32 16)(line_width 1))
	)
	(drawing
		(rectangle (rect 16 16 80 80)(line_width 1))
	)
	(rotate90)
)
(symbol
	(rect 552 352 648 448)
	(text "selector12" (rect 5 0 55 12)(font "Arial" ))
	(text "inst12" (rect 8 80 37 92)(font "Arial" ))
	(port
		(pt 0 32)
		(input)
		(text "s" (rect 0 0 5 12)(font "Arial" ))
		(text "s" (rect 21 27 26 39)(font "Arial" ))
		(line (pt 0 32)(pt 16 32)(line_width 1))
	)
	(port
		(pt 0 48)
		(input)
		(text "a" (rect 0 0 5 12)(font "Arial" ))
		(text "a" (rect 21 43 26 55)(font "Arial" ))
		(line (pt 0 48)(pt 16 48)(line_width 1))
	)
	(port
		(pt 96 32)
		(output)
		(text "x" (rect 0 0 5 12)(font "Arial" ))
		(text "x" (rect 70 27 75 39)(font "Arial" ))
		(line (pt 96 32)(pt 80 32)(line_width 1))
	)
	(port
		(pt 96 48)
		(output)
		(text "y" (rect 0 0 7 12)(font "Arial" ))
		(text "y" (rect 68 43 75 55)(font "Arial" ))
		(line (pt 96 48)(pt 80 48)(line_width 1))
	)
	(drawing
		(rectangle (rect 16 16 80 80)(line_width 1))
	)
)
(symbol
	(rect 904 240 1000 336)
	(text "selector" (rect 5 84 43 96)(font "Arial" ))
	(text "inst11" (rect 8 4 37 16)(font "Arial" ))
	(port
		(pt 0 64)
		(input)
		(text "a" (rect 0 0 5 12)(font "Arial" ))
		(text "a" (rect 21 57 26 69)(font "Arial" ))
		(line (pt 0 64)(pt 16 64)(line_width 1))
	)
	(port
		(pt 0 48)
		(input)
		(text "b" (rect 0 0 5 12)(font "Arial" ))
		(text "b" (rect 21 41 26 53)(font "Arial" ))
		(line (pt 0 48)(pt 16 48)(line_width 1))
	)
	(port
		(pt 0 32)
		(input)
		(text "s" (rect 0 0 5 12)(font "Arial" ))
		(text "s" (rect 21 25 26 37)(font "Arial" ))
		(line (pt 0 32)(pt 16 32)(line_width 1))
	)
	(port
		(pt 96 64)
		(output)
		(text "y" (rect 0 0 7 12)(font "Arial" ))
		(text "y" (rect 68 57 75 69)(font "Arial" ))
		(line (pt 96 64)(pt 80 64)(line_width 1))
	)
	(drawing
		(rectangle (rect 16 16 80 80)(line_width 1))
	)
	(flipx)
)
(connector
	(pt 96 264)
	(pt 96 248)
)
(connector
	(pt 64 120)
	(pt 64 88)
	(bus)
)
(connector
	(pt 80 120)
	(pt 80 88)
	(bus)
)
(connector
	(pt 96 120)
	(pt 96 104)
)
(connector
	(pt 264 112)
	(pt 264 128)
)
(connector
	(pt 96 104)
	(pt 176 104)
)
(connector
	(pt 176 256)
	(pt 176 104)
)
(connector
	(pt 376 112)
	(pt 264 112)
)
(connector
	(pt 376 112)
	(pt 376 248)
)
(connector
	(pt 376 248)
	(pt 480 248)
)
(connector
	(pt 480 112)
	(pt 480 104)
)
(connector
	(pt 552 104)
	(pt 480 104)
)
(connector
	(pt 552 104)
	(pt 552 248)
)
(connector
	(pt 632 120)
	(pt 632 104)
)
(connector
	(pt 736 104)
	(pt 632 104)
)
(connector
	(pt 736 104)
	(pt 736 248)
)
(connector
	(pt 840 232)
	(pt 840 248)
)
(connector
	(pt 840 248)
	(pt 736 248)
)
(connector
	(pt 608 -80)
	(pt 664 -80)
	(bus)
)
(connector
	(text "time[15..0]" (rect 424 -80 477 -68)(font "Arial" ))
	(pt 480 -64)
	(pt 416 -64)
	(bus)
)
(connector
	(text "time[3..0]" (rect 446 73 458 120)(font "Arial" )(vertical))
	(pt 464 112)
	(pt 464 72)
	(bus)
)
(connector
	(text "time[7..4]" (rect 428 67 440 114)(font "Arial" )(vertical))
	(pt 448 112)
	(pt 448 56)
	(bus)
)
(connector
	(text "time[15..12]" (rect 788 62 800 121)(font "Arial" )(vertical))
	(pt 808 104)
	(pt 808 64)
	(bus)
)
(connector
	(text "time[11..8]" (rect 806 68 818 121)(font "Arial" )(vertical))
	(pt 824 104)
	(pt 824 72)
	(bus)
)
(connector
	(text "clock[15..0]" (rect 334 -64 391 -52)(font "Arial" ))
	(pt 480 -48)
	(pt 328 -48)
	(bus)
)
(connector
	(pt 912 72)
	(pt 960 72)
)
(connector
	(text "clk" (rect 928 52 940 66)(font "Arial" )(vertical))
	(pt 960 72)
	(pt 960 120)
)
(connector
	(text "time[15..0]" (rect 960 19 972 72)(font "Arial" )(vertical))
	(pt 976 120)
	(pt 976 8)
	(bus)
)
(connector
	(text "clk" (rect 39 248 53 260)(font "Arial" ))
	(pt 8 264)
	(pt 96 264)
)
(connector
	(pt 992 -64)
	(pt 1000 -64)
	(bus)
)
(connector
	(text "clock[15..0]" (rect 976 -65 988 -8)(font "Arial" )(vertical))
	(pt 992 120)
	(pt 992 -64)
	(bus)
)
(connector
	(pt 960 216)
	(pt 960 224)
)
(connector
	(pt 960 224)
	(pt 896 224)
)
(connector
	(pt 896 272)
	(pt 904 272)
)
(connector
	(text "clock[15..12]" (rect 886 352 949 364)(font "Arial" ))
	(pt 912 368)
	(pt 840 368)
	(bus)
)
(connector
	(text "clock[11..8]" (rect 848 368 905 380)(font "Arial" ))
	(pt 840 384)
	(pt 888 384)
	(bus)
)
(connector
	(text "clock[3..0]" (rect 464 384 515 396)(font "Arial" ))
	(pt 456 400)
	(pt 504 400)
	(bus)
)
(connector
	(text "clock[7..4]" (rect 464 368 515 380)(font "Arial" ))
	(pt 456 384)
	(pt 504 384)
	(bus)
)
(connector
	(pt -120 424)
	(pt -88 424)
)
(connector
	(pt 184 416)
	(pt 168 416)
)
(connector
	(pt 168 416)
	(pt 168 576)
)
(connector
	(pt 552 400)
	(pt 544 400)
)
(connector
	(pt 544 400)
	(pt 544 568)
)
(connector
	(text "con[4..0]" (rect 80 408 123 420)(font "Arial" ))
	(pt 72 424)
	(pt 120 424)
	(bus)
)
(connector
	(text "con[2]" (rect 152 384 182 396)(font "Arial" ))
	(pt 184 400)
	(pt 144 400)
)
(connector
	(text "con[0]" (rect 304 246 316 276)(font "Arial" )(vertical))
	(pt 296 224)
	(pt 296 288)
)
(connector
	(text "con[1]" (rect 672 238 684 268)(font "Arial" )(vertical))
	(pt 664 216)
	(pt 664 280)
)
(connector
	(pt 536 384)
	(pt 536 312)
)
(connector
	(text "con[3]" (rect 544 328 574 340)(font "Arial" ))
	(pt 552 384)
	(pt 536 384)
)
(connector
	(pt 280 256)
	(pt 176 256)
)
(connector
	(pt 280 256)
	(pt 280 224)
)
(connector
	(pt 264 224)
	(pt 264 336)
)
(connector
	(pt 648 248)
	(pt 552 248)
)
(connector
	(pt 648 248)
	(pt 648 216)
)
(connector
	(pt 632 216)
	(pt 632 320)
)
(connector
	(pt 304 336)
	(pt 264 336)
)
(connector
	(pt 304 336)
	(pt 304 416)
)
(connector
	(pt 280 416)
	(pt 304 416)
)
(connector
	(pt 320 400)
	(pt 280 400)
)
(connector
	(pt 320 400)
	(pt 320 416)
)
(connector
	(pt 664 320)
	(pt 632 320)
)
(connector
	(pt 664 320)
	(pt 664 400)
)
(connector
	(pt 648 400)
	(pt 664 400)
)
(connector
	(pt 648 384)
	(pt 712 384)
)
(connector
	(pt 712 384)
	(pt 712 400)
)
(connector
	(pt 312 -80)
	(pt 312 -88)
)
(connector
	(text "con[4]" (rect 320 -96 350 -84)(font "Arial" ))
	(pt 480 -80)
	(pt 312 -80)
)
(connector
	(pt 1000 304)
	(pt 1008 304)
)
(connector
	(pt 896 224)
	(pt 896 272)
)
(connector
	(pt 904 288)
	(pt 872 288)
)