adding files

2 files changed, 60 insertions, 0 deletions

diff --git a/nghdl/Example/xor/myxor.vhdl b/nghdl/Example/xor/myxor.vhdl
new file mode 100644
index 00000000..b49f3cad
--- /dev/null
+++ b/nghdl/Example/xor/myxor.vhdl
@@ -0,0 +1,15 @@
+library ieee;
+use ieee.std_logic_1164.all;
+
+entity myxor is
+       port (a : in  std_logic_vector(0 downto 0); 
+             b : in  std_logic_vector(0 downto 0);
+             c : out std_logic_vector(0 downto 0)); 
+     end myxor;
+     
+     architecture rtl of myxor is
+     begin
+        
+        c <= a xor b;
+        
+     end rtl;
diff --git a/nghdl/Example/xor/xor-test.cir b/nghdl/Example/xor/xor-test.cir
new file mode 100644
index 00000000..910839ee
--- /dev/null
+++ b/nghdl/Example/xor/xor-test.cir
@@ -0,0 +1,45 @@
+
+*** input sources ***
+
+v1 100 0 DC PWL ( 0n 0.0 5n 0.0 5.1n 2.0 10n 2.0 10.1n 2.0 15n 2.0 15.1n 0.0 20.0n 0.0 20.1n 2.0 25n 2.0 25.1n 0.0 30n 0.0 30.1n 2.0
+		+40.0 2.0 40.1n 0.0 50n 0.0 50.1n 2.0 60n 2.0 60.1n 0.0 70n 0.0 70.1n 2.0 80n 2.0 80.1n 0.0 90n 0.0 100n 0.0)
+
+v2 200 0 DC PWL (0n 2.0 5n 2.0 10n 2.0 15n 2.0 15.1n 0.0 20n 0.0 25n 0.0 30n 0.0 30.1n 2.0 40n 2.0 40.1n 0.0 45n 0.0 45.1n 2.0 
+		+ 50n 2.0 50.1n 0.0 60.0n 0.0 70n 0.0 80n 0.0 90n 0.0 95n 0.0 95.1n 2.0 100n 2.0)
+
+Vvdd vdd 0 DC 2.0
+
+*** resistors to ground ***
+r1 100 0 1k
+r2 200 0 1k
+
+
+*
+*** adc_bridge blocks ***
+aconverter1 [100 200 ] [1 2] adc
+
+
+axor [1] [2]  [12] axors
+
+adac1 [12] [34]  dac
+*************model***********
+
+.model axors myxor(instance_id = 112 rise_delay = 1.0e-10 fall_delay = 1.0e-10 stop_time=90n)
+
+.model adc adc_bridge ( in_low =0.5 in_high =1.0
++                   rise_delay =1.0e-10 fall_delay =1.0e-10)
+.model dac dac_bridge(out_low = 0.0 out_high = 2.0 out_undef = 1.0
++                      input_load = 5.0e-14 t_rise = 1.0e-10
++                      t_fall = 1.0e-10)
+
+
+.end
+
+
+
+.CONTROL
+
+option noopalter
+tran .1n 100n
+.ENDC
+