mult_99.bdf

是一些很好的FPGA设计实例

	(pt 800 488)
	(pt 800 464)
)
(connector
	(pt 944 488)
	(pt 944 464)
)
(connector
	(pt 224 464)
	(pt 368 464)
)
(connector
	(pt 368 464)
	(pt 512 464)
)
(connector
	(pt 512 464)
	(pt 656 464)
)
(connector
	(pt 656 464)
	(pt 800 464)
)
(connector
	(pt 800 464)
	(pt 944 464)
)
(connector
	(pt -24 464)
	(pt -24 680)
)
(connector
	(pt -24 464)
	(pt 80 464)
)
(connector
	(pt 80 464)
	(pt 224 464)
)
(connector
	(pt 96 488)
	(pt 96 472)
)
(connector
	(pt 240 488)
	(pt 240 472)
)
(connector
	(pt 384 488)
	(pt 384 472)
)
(connector
	(pt 528 488)
	(pt 528 472)
)
(connector
	(pt 672 488)
	(pt 672 472)
)
(connector
	(pt 816 488)
	(pt 816 472)
)
(connector
	(pt 960 488)
	(pt 960 472)
)
(connector
	(pt 240 472)
	(pt 384 472)
)
(connector
	(pt 384 472)
	(pt 528 472)
)
(connector
	(pt 528 472)
	(pt 672 472)
)
(connector
	(pt -16 472)
	(pt 96 472)
)
(connector
	(pt 96 472)
	(pt 240 472)
)
(connector
	(pt -16 472)
	(pt -16 696)
)
(connector
	(pt -48 696)
	(pt -16 696)
)
(connector
	(pt 672 472)
	(pt 816 472)
)
(connector
	(pt 816 472)
	(pt 960 472)
)
(connector
	(text "QLA" (rect 818 -24 839 -12)(font "Arial" ))
	(pt 808 -8)
	(pt 840 -8)
)
(connector
	(text "QLA" (rect 1008 460 1020 481)(font "Arial" )(vertical))
	(pt 1024 488)
	(pt 1024 440)
)
(connector
	(pt 176 424)
	(pt 176 488)
)
(connector
	(pt 320 424)
	(pt 320 488)
)
(connector
	(pt 464 424)
	(pt 464 488)
)
(connector
	(pt 608 424)
	(pt 608 488)
)
(connector
	(pt 752 424)
	(pt 752 488)
)
(connector
	(pt 896 424)
	(pt 896 488)
)
(connector
	(pt 1040 424)
	(pt 1040 488)
)
(connector
	(pt 752 424)
	(pt 896 424)
)
(connector
	(pt 176 424)
	(pt 320 424)
)
(connector
	(pt 320 424)
	(pt 464 424)
)
(connector
	(pt 464 424)
	(pt 608 424)
)
(connector
	(pt 608 424)
	(pt 752 424)
)
(connector
	(pt 896 424)
	(pt 1040 424)
)
(connector
	(pt 1040 424)
	(pt 1104 424)
)
(connector
	(pt -80 840)
	(pt 32 840)
)
(connector
	(text "QHA" (rect 992 458 1004 481)(font "Arial" )(vertical))
	(pt 1008 488)
	(pt 1008 440)
)
(connector
	(text "ALA" (rect 976 461 988 481)(font "Arial" )(vertical))
	(pt 992 488)
	(pt 992 440)
)
(connector
	(text "AHA" (rect 960 459 972 481)(font "Arial" )(vertical))
	(pt 976 488)
	(pt 976 440)
)
(connector
	(text "QLB" (rect 864 460 876 481)(font "Arial" )(vertical))
	(pt 880 488)
	(pt 880 440)
)
(connector
	(text "QHB" (rect 848 458 860 481)(font "Arial" )(vertical))
	(pt 864 488)
	(pt 864 440)
)
(connector
	(text "ALB" (rect 832 461 844 481)(font "Arial" )(vertical))
	(pt 848 488)
	(pt 848 440)
)
(connector
	(text "AHB" (rect 816 459 828 481)(font "Arial" )(vertical))
	(pt 832 488)
	(pt 832 440)
)
(connector
	(text "QLC" (rect 720 459 732 481)(font "Arial" )(vertical))
	(pt 736 488)
	(pt 736 440)
)
(connector
	(text "QHC" (rect 704 457 716 481)(font "Arial" )(vertical))
	(pt 720 488)
	(pt 720 440)
)
(connector
	(text "ALC" (rect 688 460 700 481)(font "Arial" )(vertical))
	(pt 704 488)
	(pt 704 440)
)
(connector
	(text "AHC" (rect 672 458 684 481)(font "Arial" )(vertical))
	(pt 688 488)
	(pt 688 440)
)
(connector
	(text "QLD" (rect 576 459 588 481)(font "Arial" )(vertical))
	(pt 592 488)
	(pt 592 440)
)
(connector
	(text "QHD" (rect 560 457 572 481)(font "Arial" )(vertical))
	(pt 576 488)
	(pt 576 440)
)
(connector
	(text "ALD" (rect 544 460 556 481)(font "Arial" )(vertical))
	(pt 560 488)
	(pt 560 440)
)
(connector
	(text "AHD" (rect 528 458 540 481)(font "Arial" )(vertical))
	(pt 544 488)
	(pt 544 440)
)
(connector
	(text "QLE" (rect 432 460 444 481)(font "Arial" )(vertical))
	(pt 448 488)
	(pt 448 440)
)
(connector
	(text "QHE" (rect 416 458 428 481)(font "Arial" )(vertical))
	(pt 432 488)
	(pt 432 440)
)
(connector
	(text "ALE" (rect 400 461 412 481)(font "Arial" )(vertical))
	(pt 416 488)
	(pt 416 440)
)
(connector
	(text "AHE" (rect 384 459 396 481)(font "Arial" )(vertical))
	(pt 400 488)
	(pt 400 440)
)
(connector
	(text "QLF" (rect 288 460 300 481)(font "Arial" )(vertical))
	(pt 304 488)
	(pt 304 440)
)
(connector
	(text "QHF" (rect 272 458 284 481)(font "Arial" )(vertical))
	(pt 288 488)
	(pt 288 440)
)
(connector
	(text "ALF" (rect 256 461 268 481)(font "Arial" )(vertical))
	(pt 272 488)
	(pt 272 440)
)
(connector
	(text "AHF" (rect 240 459 252 481)(font "Arial" )(vertical))
	(pt 256 488)
	(pt 256 440)
)
(connector
	(text "QLG" (rect 144 459 156 481)(font "Arial" )(vertical))
	(pt 160 488)
	(pt 160 440)
)
(connector
	(text "QHG" (rect 128 457 140 481)(font "Arial" )(vertical))
	(pt 144 488)
	(pt 144 440)
)
(connector
	(text "ALG" (rect 112 460 124 481)(font "Arial" )(vertical))
	(pt 128 488)
	(pt 128 440)
)
(connector
	(text "AHG" (rect 96 458 108 481)(font "Arial" )(vertical))
	(pt 112 488)
	(pt 112 440)
)
(connector
	(text "ALA" (rect -142 120 -122 132)(font "Arial" ))
	(pt -104 136)
	(pt -144 136)
)
(connector
	(text "ALB" (rect -142 136 -122 148)(font "Arial" ))
	(pt -104 152)
	(pt -144 152)
)
(connector
	(text "ALC" (rect -142 152 -121 164)(font "Arial" ))
	(pt -104 168)
	(pt -144 168)
)
(connector
	(text "ALD" (rect -142 168 -121 180)(font "Arial" ))
	(pt -144 184)
	(pt -104 184)
)
(connector
	(text "ALE" (rect -142 184 -122 196)(font "Arial" ))
	(pt -104 200)
	(pt -144 200)
)
(connector
	(text "ALF" (rect -142 200 -122 212)(font "Arial" ))
	(pt -104 216)
	(pt -144 216)
)
(connector
	(text "ALG" (rect -142 216 -121 228)(font "Arial" ))
	(pt -104 232)
	(pt -144 232)
)
(connector
	(text "AHA" (rect -134 288 -112 300)(font "Arial" ))
	(pt -104 304)
	(pt -136 304)
)
(connector
	(text "AHB" (rect -134 304 -112 316)(font "Arial" ))
	(pt -104 320)
	(pt -136 320)
)
(connector
	(text "AHC" (rect -134 320 -111 332)(font "Arial" ))
	(pt -104 336)
	(pt -136 336)
)
(connector
	(text "AHD" (rect -134 336 -111 348)(font "Arial" ))
	(pt -104 352)
	(pt -136 352)
)
(connector
	(text "AHE" (rect -134 352 -112 364)(font "Arial" ))
	(pt -104 368)
	(pt -136 368)
)
(connector
	(text "AHF" (rect -134 368 -112 380)(font "Arial" ))
	(pt -104 384)
	(pt -136 384)
)
(connector
	(text "AHG" (rect -134 384 -111 396)(font "Arial" ))
	(pt -104 400)
	(pt -136 400)
)
(connector
	(text "QHA" (rect 818 144 841 156)(font "Arial" ))
	(pt 808 160)
	(pt 840 160)
)
(connector
	(text "QLB" (rect 818 -8 839 4)(font "Arial" ))
	(pt 808 8)
	(pt 840 8)
)
(connector
	(text "QLC" (rect 818 8 840 20)(font "Arial" ))
	(pt 808 24)
	(pt 840 24)
)
(connector
	(text "QLD" (rect 818 24 840 36)(font "Arial" ))
	(pt 808 40)
	(pt 840 40)
)
(connector
	(text "QLE" (rect 818 40 839 52)(font "Arial" ))
	(pt 808 56)
	(pt 840 56)
)
(connector
	(text "QLF" (rect 818 56 839 68)(font "Arial" ))
	(pt 808 72)
	(pt 840 72)
)
(connector
	(text "QLG" (rect 818 72 840 84)(font "Arial" ))
	(pt 808 88)
	(pt 840 88)
)
(connector
	(text "QHB" (rect 818 160 841 172)(font "Arial" ))
	(pt 808 176)
	(pt 840 176)
)
(connector
	(text "QHC" (rect 818 176 842 188)(font "Arial" ))
	(pt 808 192)
	(pt 840 192)
)
(connector
	(text "QHD" (rect 818 192 842 204)(font "Arial" ))
	(pt 808 208)
	(pt 840 208)
)
(connector
	(text "QHE" (rect 818 208 841 220)(font "Arial" ))
	(pt 808 224)
	(pt 840 224)
)
(connector
	(text "QHF" (rect 818 224 841 236)(font "Arial" ))
	(pt 808 240)
	(pt 840 240)
)
(connector
	(text "QHG" (rect 818 240 842 252)(font "Arial" ))
	(pt 808 256)
	(pt 840 256)
)
(connector
	(pt 344 32)
	(pt 344 24)
	(bus)
)
(connector
	(pt 248 32)
	(pt 272 32)
	(bus)
)
(connector
	(pt 272 32)
	(pt 344 32)
	(bus)
)
(connector
	(pt 344 48)
	(pt 344 40)
)
(connector
	(text "clk" (rect -334 712 -320 724)(font "Arial" ))
	(pt -336 728)
	(pt -272 728)
)
(connector
	(text "clk" (rect 258 32 272 44)(font "Arial" ))
	(pt 344 48)
	(pt 248 48)
)
(connector
	(text "q[3]" (rect 514 8 532 20)(font "Arial" ))
	(pt 472 24)
	(pt 696 24)
)
(connector
	(pt 472 8)
	(pt 472 24)
	(bus)
)
(connector
	(pt 472 24)
	(pt 472 48)
	(bus)
)
(connector
	(pt 472 144)
	(pt 472 160)
	(bus)
)
(connector
	(pt 472 160)
	(pt 472 176)
	(bus)
)
(connector
	(text "q[5]" (rect 514 144 532 156)(font "Arial" ))
	(pt 472 160)
	(pt 696 160)
)
(connector
	(text "q[4]" (rect 514 128 532 140)(font "Arial" ))
	(pt 472 144)
	(pt 696 144)
)
(connector
	(text "q[7]" (rect 514 176 532 188)(font "Arial" ))
	(pt 472 192)
	(pt 696 192)
)
(connector
	(text "q[1]" (rect 514 -24 532 -12)(font "Arial" ))
	(pt 472 -8)
	(pt 696 -8)
)
(connector
	(text "q[0]" (rect 514 -40 532 -28)(font "Arial" ))
	(pt 472 -24)
	(pt 696 -24)
)
(junction (pt 272 32))
(junction (pt 560 384))
(junction (pt 272 288))
(junction (pt 24 200))
(junction (pt 24 368))
(junction (pt 24 384))
(junction (pt 24 216))
(junction (pt 24 352))
(junction (pt 272 120))
(junction (pt 680 56))
(junction (pt 680 72))
(junction (pt 680 208))
(junction (pt 680 224))
(junction (pt 680 240))
(junction (pt 472 48))
(junction (pt 472 -8))
(junction (pt 472 8))
(junction (pt 472 24))
(junction (pt 472 144))
(junction (pt 472 160))
(junction (pt 472 176))
(junction (pt 272 304))
(junction (pt 272 320))
(junction (pt 272 136))
(junction (pt 272 152))
(junction (pt 272 168))
(junction (pt -320 680))
(junction (pt -48 696))
(junction (pt -80 680))
(junction (pt -56 680))
(junction (pt 224 464))
(junction (pt 368 464))
(junction (pt 512 464))
(junction (pt 656 464))
(junction (pt 800 464))
(junction (pt 80 464))
(junction (pt 528 472))
(junction (pt 672 472))
(junction (pt 816 472))
(junction (pt 240 472))
(junction (pt 384 472))
(junction (pt 96 472))
(junction (pt 752 424))
(junction (pt 896 424))
(junction (pt 320 424))
(junction (pt 464 424))
(junction (pt 608 424))
(junction (pt 1040 424))