Sha256: 681a78236cdd1b3c0ba5a1854a6dff65ac8d7a0f195dc6b1ffa952fd0980a47a
Contents?: true
Size: 1.3 KB
Versions: 6
Compression:
Stored size: 1.3 KB
Contents
# A simple counter
system :counter do
input :clk, :rst
input :ctrl
[8].output :q
output :c
[8].inner :qq
inner :cc
instance :add do
[8].input :x,:y
[9].output :z
z <= x.as([9]) + y
end
par do
hif(rst) { [cc,qq] <= 0 }
helse do
hif(ctrl == 1) { add.(q,-1,[cc,qq]) }
helse { add.(q,1,[cc,qq]) }
end
end
par(clk.posedge) do
q <= qq
c <= cc
end
end
# A benchmark for the counter.
system :counter_bench do
inner :clk, :rst
inner :ctrl
[8].inner :q
inner :c
counter(:my_counter).(clk,rst,ctrl,q,c)
timed do
clk <= 0
rst <= 0
ctrl <= 0
!10.ns
clk <= 1
rst <= 0
!10.ns
clk <= 0
rst <= 1
!10.ns
clk <= 1
rst <= 1
!10.ns
clk <= 0
rst <= 0
!10.ns
clk <= 1
rst <= 0
!10.ns
10.times do
clk <= 0
rst <= 0
!10.ns
clk <= 1
rst <= 0
!10.ns
end
ctrl <= 1
20.times do
clk <= 0
rst <= 0
!10.ns
clk <= 1
rst <= 0
!10.ns
end
end
end
Version data entries
6 entries across 6 versions & 1 rubygems