8x8multiplier.sp

用spice描述的8x8改进Booth码加wallance压缩的乘法器

xbuffer11 b2  b2_f buffer M=1  N=4
xbuffer12 b3  b3_f buffer M=1  N=4
xbuffer13 b4  b4_f buffer M=1  N=4
xbuffer14 b5  b5_f buffer M=1  N=4
xbuffer15 b6  b6_f buffer M=1  N=4
xbuffer16 b7  b7_f buffer M=1  N=4
xbuffer17 b8  b8_f buffer M=1  N=4
 

xbuffer18 p1_f  p1 buffer M=19  N=75
xbuffer19 p2_f  p2 buffer M=19  N=75
xbuffer20 p3_f  p3 buffer M=19  N=75
xbuffer21 p4_f  p4 buffer M=19  N=75
xbuffer22 p5_f  p5 buffer M=19  N=75
xbuffer23 p6_f  p6 buffer M=19  N=75
xbuffer24 p7_f  p7 buffer M=19  N=75
xbuffer25 p8_f  p8 buffer M=19  N=75
xbuffer26 p9_f  p9 buffer M=19  N=75
xbuffer27 p10_f  p10 buffer   M=19  N=75
xbuffer28 p11_f  p11 buffer   M=19  N=75
xbuffer29 p12_f  p12 buffer   M=19  N=75
xbuffer30 p13_f  p13 buffer   M=19  N=75
xbuffer31 p14_f  p14 buffer   M=19  N=75
xbuffer32 p15_f  p15 buffer   M=19  N=75
xbuffer33 p16_f  p16 buffer   M=19  N=75

***********gernerate booth code*************
vb0 b0 0 0.0
xBoothCoding1  b2_f   b1_f   b0  M1 Y2_1  Y1  BoothCoding  M=4
xBoothCoding2  b4_f   b3_f   b2_f  M2 Y2_2  Y2  BoothCoding  M=4
xBoothCoding3  b6_f   b5_f   b4_f  M3 Y2_3  Y3  BoothCoding  M=4
xBoothCoding4  b8_f   b7_f   b6_f  M4 Y2_4  Y4  BoothCoding  M=4

***********gernerate part product***********
va0 a0 0 0.0
xBoothSelector1  a1_f a0 Y1 Y2_1 M1 PP11  BoothSelector    M=2
xBoothSelector2  a2_f a1_f Y1 Y2_1 M1 PP12  BoothSelector    M=2
xBoothSelector3  a3_f a2_f Y1 Y2_1 M1 PP13  BoothSelector    M=2
xBoothSelector4  a4_f a3_f Y1 Y2_1 M1 PP14  BoothSelector    M=2
xBoothSelector5  a5_f a4_f Y1 Y2_1 M1 PP15  BoothSelector    M=2
xBoothSelector6  a6_f a5_f Y1 Y2_1 M1 PP16  BoothSelector    M=2
xBoothSelector7  a7_f a6_f Y1 Y2_1 M1 PP17  BoothSelector    M=2
xBoothSelector8  a8_f a7_f Y1 Y2_1 M1 PP18  BoothSelector    M=2
xBoothSelector9  a8_f a8_f Y1 Y2_1 M1 PP19  BoothSelector    M=2
xBoothSelector10 a8_f a8_f Y1 Y2_1 M1 e1    BoothSelector    M=2
xnot1  e1  e1_   not  M=1


xBoothSelector11 a1_f a0 Y2 Y2_2 M2 PP21   BoothSelector     M=2
xBoothSelector12 a2_f a1_f Y2 Y2_2 M2 PP22   BoothSelector   M=2
xBoothSelector13 a3_f a2_f Y2 Y2_2 M2 PP23   BoothSelector   M=2
xBoothSelector14 a4_f a3_f Y2 Y2_2 M2 PP24   BoothSelector   M=2
xBoothSelector15 a5_f a4_f Y2 Y2_2 M2 PP25   BoothSelector   M=2 
xBoothSelector16 a6_f a5_f Y2 Y2_2 M2 PP26   BoothSelector   M=2
xBoothSelector17 a7_f a6_f Y2 Y2_2 M2 PP27   BoothSelector   M=2
xBoothSelector18 a8_f a7_f Y2 Y2_2 M2 PP28   BoothSelector   M=2
xBoothSelector19 a8_f a8_f Y2 Y2_2 M2 PP29   BoothSelector   M=2
xBoothSelector20 a8_f a8_f Y2 Y2_2 M2 e2     BoothSelector   M=2
xnot2  e2  e2_   not  M=1


xBoothSelector21 a1_f a0 Y3 Y2_3 M3 PP31   BoothSelector     M=2
xBoothSelector22 a2_f a1_f Y3 Y2_3 M3 PP32   BoothSelector   M=2
xBoothSelector23 a3_f a2_f Y3 Y2_3 M3 PP33   BoothSelector   M=2
xBoothSelector24 a4_f a3_f Y3 Y2_3 M3 PP34   BoothSelector   M=2
xBoothSelector25 a5_f a4_f Y3 Y2_3 M3 PP35   BoothSelector   M=2
xBoothSelector26 a6_f a5_f Y3 Y2_3 M3 PP36   BoothSelector   M=2
xBoothSelector27 a7_f a6_f Y3 Y2_3 M3 PP37   BoothSelector   M=2
xBoothSelector28 a8_f a7_f Y3 Y2_3 M3 PP38   BoothSelector   M=2
xBoothSelector29 a8_f a8_f Y3 Y2_3 M3 PP39   BoothSelector   M=2
xBoothSelector30 a8_f a8_f Y3 Y2_3 M3 e3     BoothSelector   M=2
xnot3  e3  e3_   not  M=1

xBoothSelector31 a1_f a0 Y4 Y2_4 M4 PP41   BoothSelector     M=2
xBoothSelector32 a2_f a1_f Y4 Y2_4 M4 PP42   BoothSelector   M=2
xBoothSelector33 a3_f a2_f Y4 Y2_4 M4 PP43   BoothSelector   M=2
xBoothSelector34 a4_f a3_f Y4 Y2_4 M4 PP44   BoothSelector   M=2
xBoothSelector35 a5_f a4_f Y4 Y2_4 M4 PP45   BoothSelector   M=2
xBoothSelector36 a6_f a5_f Y4 Y2_4 M4 PP46   BoothSelector   M=2
xBoothSelector37 a7_f a6_f Y4 Y2_4 M4 PP47   BoothSelector   M=2
xBoothSelector38 a8_f a7_f Y4 Y2_4 M4 PP48   BoothSelector   M=2
xBoothSelector39 a8_f a8_f Y4 Y2_4 M4 PP49   BoothSelector   M=2
xBoothSelector40 a8_f a8_f Y4 Y2_4 M4 e4     BoothSelector   M=2
xnot4  e4  e4_   not  M=1



vpower1  power   0    2.5

***********  wallace  generate  product ************
xhalf_adder1    PP11         M1        p1_f           p2_1   half_adder   M=4

xhalf_adder2    p2_1         PP12      p2_f           p3_1   half_adder   M=9

xfull_adder3_1  PP13   PP21  M2            p3_2     p4_2   full_adder     M=1
xhalf_adder3_1  p3_1   p3_2            p3_f           p4_1   half_adder   M=21

xhalf_adder4_1  PP14   PP22                p4_3     p5_3   half_adder     M=1
xfull_adder4_1  p4_1   p4_2  p4_3      p4_f           p5_1   full_adder   M=16

xfull_adder5_1  PP15   PP23  PP31          p5_4     P6_4   full_adder     M=1
xfull_adder5_2  M3     p5_4  p5_3          p5_2     p6_2   full_adder     M=1
xhalf_adder5_1  p5_1   p5_2            p5_f           p6_1   half_adder   M=35

xfull_adder6_1  PP16   PP24  PP32          p6_5     p7_4   full_adder     M=1
xhalf_adder6_1  p6_4   p6_5                p6_3     p7_2   half_adder     M=1
xfull_adder6_2  p6_1   p6_2  p6_3      p6_f           p7_1   full_adder   M=27

xfull_adder7_1  PP17   PP25  PP33       	p7_6    p8_6     full_adder     M=1
xhalf_adder7_1  PP41   M4                 p7_5    p8_4     half_adder     M=1
xfull_adder7_2  p7_4   p7_5  p7_6         p7_3    p8_3     full_adder     M=1
xfull_adder7_3  p7_1   p7_2  p7_3       p7_f         p8_1     full_adder  M=20

xfull_adder8_1  PP18   PP26  PP34         p8_7    p9_6     full_adder     M=1
xfull_adder8_2  PP42   p8_7  p8_6         p8_5    p9_4     full_adder     M=1
xfull_adder8_3  p8_3   p8_4  p8_5         p8_2    p9_2     full_adder     M=1
xhalf_adder8_1  p8_1   p8_2            p8_f         p9_1     half_adder   M=45


xfull_adder9_1  PP19   PP27  PP35         p9_7    p10_6    full_adder     M=1
xfull_adder9_2  PP43   p9_6  p9_7         p9_5    p10_4    full_adder     M=1
xhalf_adder9_1  p9_4   p9_5               p9_3    p10_2    half_adder     M=1
xfull_adder9_3  p9_1   p9_2  p9_3      p9_f         p10_1    full_adder   M=34

xfull_adder10_1  e1     PP28   PP36       p10_7    p11_6   full_adder     M=1
xfull_adder10_2  p10_6  p10_7  PP44       p10_5    p11_4   full_adder     M=1
xhalf_adder10_1  p10_4  p10_5             p10_3    p11_2   half_adder     M=1
xfull_adder10_3  p10_1  p10_2  p10_3   p10_f         p11_1   full_adder   M=26

xfull_adder11_1  e1     PP29   PP37        p11_7    p12_6   full_adder    M=1
xfull_adder11_2  PP45   p11_6  p11_7       p11_5    p12_4   full_adder    M=1
xhalf_adder11_1  p11_4  p11_5              p11_3    p12_2   half_adder    M=1
xfull_adder11_3  p11_1  p11_2  p11_3   p11_f          p12_1   full_adder  M=19

xfull_adder12_1  e1_    e2_    PP38        p12_7    p13_6   full_adder    M=1
xfull_adder12_2  PP46   p12_6  p12_7       p12_5    p13_4   full_adder    M=1
xhalf_adder12_1  p12_4  p12_5              p12_3    p13_2   half_adder    M=1
xfull_adder12_3  p12_1  p12_2  p12_3   p12_f          p13_1   full_adder  M=15

xfull_adder13_1  power  PP39   PP47        p13_7    p14_6   full_adder    M=1
xhalf_adder13_1  p13_6  p13_7              p13_5    p14_4   half_adder    M=1
xhalf_adder13_2  P13_4  P13_5              P13_3    P14_2   half_adder    M=1
xfull_adder13_2  p13_1  p13_2  p13_3   p13_f          p14_1   full_adder  M=11

xhalf_adder14_1  PP48   e3_                p14_7    p15_6   half_adder    M=1
xhalf_adder14_2  p14_6  p14_7              p14_5    p15_4   half_adder    M=1
xhalf_adder14_3  p14_4  p14_5              p14_3    p15_2   half_adder    M=1
xfull_adder14_1  p14_1  p14_2  p14_3   p14_f          p15_1   full_adder  M=8

xhalf_adder15_1  power  PP49               p15_7    p16_5   half_adder    M=1
xhalf_adder15_2  p15_6  p15_7              p15_5    p16_4   half_adder    M=1
xhalf_adder15_3  p15_4  p15_5              p15_3    p16_2   half_adder    M=1
xfull_adder15_1  p15_1  p15_2  p15_3   p15_f          p16_1   full_adder  M=6

xfull_adder16_1  p16_4  p16_5  e4_       p16_3    p17_2   full_adder      M=1             
xfull_adder16_2  p16_1  p16_2  p16_3   p16_f          p17_1   full_adder  M=5
.end