Sha256: a7cc4924a3b554aefc452854c3a82e3e2a90951ce844e7d450bceda654c9bd5e
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Size: 737 Bytes
Versions: 24
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Stored size: 737 Bytes
Contents
# A simple generic adder
system :adder do |w|
[(w-1)..0].input :i,:j
[w..0].output :k
k <= i.as(bit[w+1]) + j
end
# A module embedding two generic adders.
system :two_adders do |w|
[w*2].input :x, :y
[(w+1)*2].output :z
adder(w).(:adderI0).(x[(w-1)..0],y[(w-1)..0],z[w..0])
adder(w).(:adderI1).(x[(w*2-1)..w],y[(w*2-1)..w],z[(w*2+1)..(w+1)])
end
# Testing the generic adder.
system :adder_bench do
width = 4
[width*2].inner :a,:b
[(width+1)*2].inner :c
two_adders(width).(:my_adders).(a,b,c)
timed do
a <= 0
b <= 0
!10.ns
a <= 1
!10.ns
b <= 1
!10.ns
a <= 255
!10.ns
b <= 128
!10.ns
end
end
Version data entries
24 entries across 24 versions & 1 rubygems