entity ch_05_08 is
end entity ch_05_08;
----------------------------------------------------------------
architecture test of ch_05_08 is
constant T_pd : delay_length := 5 ns;
signal a, b : bit := '0';
signal test_inputs : bit_vector(1 to 2);
use work.stimulus_generators.all_possible_values;
begin
block_05_3_f : block is
signal sum, carry : bit;
begin
-- code from book:
half_add : process is
begin
sum <= a xor b after T_pd;
carry <= a and b after T_pd;
wait on a, b;
end process half_add;
-- end of code from book
end block block_05_3_f;
----------------
block_05_3_g : block is
signal sum, carry : bit;
begin
-- code from book:
half_add : process (a, b) is
begin
sum <= a xor b after T_pd;
carry <= a and b after T_pd;
end process half_add;
-- end of code from book
end block block_05_3_g;
----------------
stimulus_05_3_f_g :
all_possible_values(test_inputs, 20 ns);
(a, b) <= test_inputs;
end architecture test;
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