Version 4 SHEET 1 2196 936 WIRE 576 -224 384 -224 WIRE 384 -208 384 -224 WIRE 384 -208 352 -208 WIRE 704 -208 656 -208 WIRE 576 -192 416 -192 WIRE 384 -96 384 -208 WIRE 464 -96 384 -96 WIRE 592 -96 528 -96 WIRE 416 -80 416 -192 WIRE 416 -80 352 -80 WIRE 704 -80 656 -80 WIRE 416 -64 416 -80 WIRE 592 -64 416 -64 WIRE 592 16 384 16 WIRE 384 32 384 16 WIRE 384 32 352 32 WIRE 704 32 656 32 WIRE 592 48 416 48 WIRE 384 128 384 32 WIRE 576 128 384 128 WIRE 416 144 416 48 WIRE 416 144 352 144 WIRE 704 144 656 144 WIRE -320 160 -320 80 WIRE -240 160 -240 80 WIRE -160 160 -160 80 WIRE 416 160 416 144 WIRE 576 160 416 160 WIRE 480 224 384 224 WIRE 384 240 384 224 WIRE 384 240 352 240 WIRE 480 256 400 256 WIRE 560 256 560 240 WIRE 704 256 560 256 WIRE 832 272 784 272 WIRE 704 288 368 288 WIRE -320 304 -320 240 WIRE -240 304 -240 240 WIRE -160 304 -160 240 WIRE 560 320 560 256 WIRE 576 320 560 320 WIRE 400 336 400 256 WIRE 400 336 352 336 WIRE 656 336 640 336 WIRE 368 352 368 288 WIRE 448 352 368 352 WIRE 576 352 512 352 WIRE 656 384 656 336 WIRE 704 384 656 384 WIRE 832 400 768 400 WIRE 704 416 656 416 WIRE 384 432 384 240 WIRE 448 432 384 432 WIRE 544 432 512 432 WIRE 368 448 368 352 WIRE 368 448 352 448 WIRE 656 448 656 416 WIRE 656 448 608 448 WIRE 400 464 400 336 WIRE 544 464 400 464 WIRE 448 544 352 544 WIRE 480 544 448 544 WIRE 576 560 560 560 WIRE 480 576 384 576 WIRE 576 576 576 560 WIRE 704 576 576 576 WIRE 832 592 784 592 WIRE 704 608 416 608 WIRE 384 640 384 576 WIRE 384 640 352 640 WIRE 576 672 576 576 WIRE 608 672 576 672 WIRE 688 688 672 688 WIRE 416 704 416 608 WIRE 608 704 416 704 WIRE 688 720 688 688 WIRE 720 720 688 720 WIRE 416 736 416 704 WIRE 416 736 352 736 WIRE 832 736 784 736 WIRE 720 752 688 752 WIRE 384 768 384 640 WIRE 496 768 384 768 WIRE 688 784 688 752 WIRE 688 784 560 784 WIRE 448 800 448 544 WIRE 496 800 448 800 FLAG -320 304 0 FLAG -240 304 0 FLAG -160 304 0 FLAG 352 240 A IOPIN 352 240 In FLAG 352 336 B IOPIN 352 336 In FLAG 352 448 C IOPIN 352 448 In FLAG -320 80 A IOPIN -320 80 Out FLAG -240 80 B IOPIN -240 80 Out FLAG -160 80 C IOPIN -160 80 Out FLAG 832 272 SUM-Full-Subtractor IOPIN 832 272 Out FLAG 832 400 CARRY-Full-Subtractor IOPIN 832 400 Out FLAG 352 544 A IOPIN 352 544 In FLAG 352 640 B IOPIN 352 640 In FLAG 352 736 C IOPIN 352 736 In FLAG 832 592 SUM-Full-Adder IOPIN 832 592 Out FLAG 832 736 CARRY-Full-Adder IOPIN 832 736 Out FLAG 352 -208 A IOPIN 352 -208 In FLAG 352 32 A IOPIN 352 32 In FLAG 352 -80 B IOPIN 352 -80 In FLAG 352 144 B IOPIN 352 144 In FLAG 704 -80 SUM-Half-Subtractor IOPIN 704 -80 Out FLAG 704 32 SUM-Half-Adder IOPIN 704 32 Out FLAG 704 -208 CARRY-Half-Subtractator IOPIN 704 -208 Out FLAG 704 144 CARRY-Half-Adder IOPIN 704 144 Out SYMBOL voltage -320 144 R0 WINDOW 3 -32 208 Left 2 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR Value PULSE(0 5 0 1n 1n 1m 2m) SYMATTR InstName V1 SYMBOL voltage -240 144 R0 WINDOW 3 -111 241 Left 2 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR Value PULSE(0 5 0 1n 1n 2m 4m) SYMATTR InstName V2 SYMBOL voltage -160 144 R0 WINDOW 3 -192 274 Left 2 WINDOW 123 0 0 Left 0 WINDOW 39 0 0 Left 0 SYMATTR Value PULSE(0 5 0 1n 1n 4m 8m) SYMATTR InstName V3 SYMBOL DigitalLogic\\XOR_2 528 240 R0 SYMATTR InstName U1 SYMBOL DigitalLogic\\XOR_2 752 272 R0 SYMATTR InstName U2 SYMBOL DigitalLogic\\AND_2 608 336 R0 SYMATTR InstName U3 SYMBOL DigitalLogic\\AND_2 576 448 R0 SYMATTR InstName U4 SYMBOL DigitalLogic\\OR_2 736 400 R0 SYMATTR InstName U5 SYMBOL DigitalLogic\\INV_1 464 432 R0 SYMATTR InstName U6 SYMBOL DigitalLogic\\INV_1 464 352 R0 SYMATTR InstName U7 SYMBOL DigitalLogic\\XOR_2 528 560 R0 SYMATTR InstName U8 SYMBOL DigitalLogic\\XOR_2 752 592 R0 SYMATTR InstName U9 SYMBOL DigitalLogic\\AND_2 640 688 R0 SYMATTR InstName U10 SYMBOL DigitalLogic\\AND_2 528 784 R0 SYMATTR InstName U11 SYMBOL DigitalLogic\\OR_2 752 736 R0 SYMATTR InstName U12 SYMBOL DigitalLogic\\XOR_2 624 -208 R0 SYMATTR InstName U14 SYMBOL DigitalLogic\\XOR_2 624 144 R0 SYMATTR InstName U15 SYMBOL DigitalLogic\\AND_2 624 32 R0 SYMATTR InstName U16 SYMBOL DigitalLogic\\INV_1 480 -96 R0 SYMATTR InstName U17 SYMBOL DigitalLogic\\AND_2 624 -80 R0 SYMATTR InstName U13 TEXT 8 336 Left 2 ;FULL SUBTRACTOR TEXT 24 616 Left 2 ;FULL ADDER TEXT 32 -144 Left 2 ;HALF SUBTRACTOR TEXT 32 88 Left 2 ;HALF ADDER TEXT -272 504 Left 2 !.tran 10m