Update verilog.txt

verilog.txt

@@ -3,78 +3,12 @@
 
 This is an ALU module of the code for processor.
 [ALU Module]
-Line 1 of ALU module:
- `timescale 1ns / 1ps
-Explanation: Sets the simulation time step to 1 nanosecond with a precision of 1 picosecond.
-
-Line 2 of ALU module:
- module alu(
-Explanation: Starts the hardware definition for the Arithmetic Logic Unit (ALU).
-
-Line 3 of ALU module:
- // Data inputs
-Explanation: Comment identifying the start of the input data signals.
-
-Line 4 of ALU module:
- input [63:0] a ,
-Explanation: 64-bit input port for the first operand (Operand A).
-
-Line 5 of ALU module:
- input [63:0] b ,
-Explanation: 64-bit input port for the second operand (Operand B).
-
-Line 6 of ALU module:
- input [4:0] alu_control ,
-Explanation: 5-bit control signal that determines which operation (Add, Sub, etc.) to perform.
-
-Line 7 of ALU module:
- input [63:0] hi_in ,
-Explanation: 64-bit input to read the current state of the High-order result register.
-
-Line 8 of ALU module:
- input [63:0] lo_in ,
-Explanation: 64-bit input to read the current state of the Low-order result register.
-
-Line 9 of ALU module:
- input [4:0] shamt ,
-Explanation: 5-bit input specifying the number of bits to shift during shift operations.
-
-Line 10 of ALU module:
- // Result outputs 
-Explanation: Comment identifying the start of the primary data output signals.
-
-Line 11 of ALU module: 
-output reg [63:0] result ,
-Explanation: 64-bit register output holding the main calculation result.
-
-Line 12 of ALU module: 
-output reg [63:0] hi_out ,
-Explanation: 64-bit register output for high-order bits (used in multiplication/division).
-
-Line 13 of ALU module: 
-output reg [63:0] lo_out ,
-Explanation: 64-bit register output for low-order bits (used in multiplication/division).
-
-Line 14 of ALU module: 
-// Status signals back to control unit 
-Explanation: Comment identifying status flags sent to the CPU control logic.
-
-Line 15 of ALU module:
- output reg zero ,
-Explanation: 1-bit flag that is high (1) if the result of the operation is zero.
-
-Line 16 of ALU module:
- output reg neg ,
-Explanation: 1-bit flag that is high (1) if the result is a negative value.
-
-Line 17 of ALU module: 
-output reg carry ,
-Explanation: 1-bit flag indicating an unsigned arithmetic carry-out.
-
-Line 18 of ALU module: 
-output reg overflow
-Explanation: 1-bit flag indicating a signed arithmetic overflow (result sign error).
-
-Line 19 of ALU module: 
-);
-Explanation: Closes the module's port list declaration.
+Line 1: `timescale 1ns / 1ps - Sets simulation time unit to 1ns and precision to 1ps.
+Line 2: module alu( - Defines the start of the Arithmetic Logic Unit (ALU) hardware module.
+Line 3: // Data inputs - Comment indicating the start of input port definitions.
+Line 4: input [63:0] a , - Declares a 64-bit wide input bus for the first operand 'a'.
+Line 5: input [63:0] b , - Declares a 64-bit wide input bus for the second operand 'b'.
+Line 6: input [4:0] alu_control , - Declares a 5-bit input to select the specific operation (opcode).
+Line 7: input [63:0] hi_in , - Declares a 64-bit input for the current high-order bits of a result.
+Line 8: input [63:0] lo_in , - Declares a 64-bit input for the current low-order bits of a result.
+Line 9: input [4:0] shamt , - Declares a 5-bit input to specify shift amount for bitwise operations.