From 6c1db8cded8b8bb1c4d31a840f7dd9dddb8bbf7d Mon Sep 17 00:00:00 2001
From: uvok
Date: Fri, 2 Jan 2026 19:36:30 +0100
Subject: Rename variables to be more clear, document

---
 nandgame/arith_unit_tb.sv | 64 +++++++++++++++++++++++------------------------
 1 file changed, 32 insertions(+), 32 deletions(-)

(limited to 'nandgame/arith_unit_tb.sv')

diff --git a/nandgame/arith_unit_tb.sv b/nandgame/arith_unit_tb.sv
index 917a113..4c2a588 100644
--- a/nandgame/arith_unit_tb.sv
+++ b/nandgame/arith_unit_tb.sv
@@ -4,16 +4,16 @@
 
 module  arith_unit_tb;
 
-logic [15:0] in1;
-logic [15:0] in2;
-ArithCode opcode;
-logic [15:0] result;
+logic [15:0] tst_in1;
+logic [15:0] tst_in2;
+ArithCode tst_opcode;
+logic [15:0] tst_result;
 
  arith_unit uut (
-  .X(in1),
-  .Y(in2),
-  .operation(opcode),
-  .RES(result)
+  .X_in(tst_in1),
+  .Y_in(tst_in2),
+  .arith_operation_in(tst_opcode),
+  .result_out(tst_result)
 );
 
 string filename;
@@ -28,41 +28,41 @@ initial begin
 end
 
 initial begin
-  in1 = 13;
-  in2 = 17;
-  opcode = ARITH_PLUS;
+  tst_in1 = 13;
+  tst_in2 = 17;
+  tst_opcode = ARITH_PLUS;
   #1
-  assert(result == 30);
+  assert(tst_result == 30);
   #1
-  in1 = 12;
-  in2 = 4;
-  opcode = ARITH_MINUS;
+  tst_in1 = 12;
+  tst_in2 = 4;
+  tst_opcode = ARITH_MINUS;
   #1
-  assert(result == 8);
+  assert(tst_result == 8);
   #1
-  in1 = 12;
-  in2 = 13;
-  opcode = ARITH_MINUS;
+  tst_in1 = 12;
+  tst_in2 = 13;
+  tst_opcode = ARITH_MINUS;
   #1
-  assert(result == 16'hffff);
+  assert(tst_result == 16'hffff);
   #1
-  in1 = 13;
-  in2 = 17;
-  opcode = ARITH_INC;
+  tst_in1 = 13;
+  tst_in2 = 17;
+  tst_opcode = ARITH_INC;
   #1
-  assert(result == 14);
+  assert(tst_result == 14);
   #1
-  in1 = 13;
-  in2 = 17;
-  opcode = ARITH_DEC;
+  tst_in1 = 13;
+  tst_in2 = 17;
+  tst_opcode = ARITH_DEC;
   #1
-  assert(result == 12);
+  assert(tst_result == 12);
   #1
-  in1 = 0;
-  in2 = 17;
-  opcode = ARITH_DEC;
+  tst_in1 = 0;
+  tst_in2 = 17;
+  tst_opcode = ARITH_DEC;
   #1
-  assert(result == 16'hffff);
+  assert(tst_result == 16'hffff);
   #1
   $finish();
 end
-- 
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