refactor: reset software and test directories

1 files changed, 0 insertions, 136 deletions

diff --git a/rv64cpu/tb/unit/tb_alu.cc b/rv64cpu/tb/unit/tb_alu.cc
deleted file mode 100644
index 0ed5059..0000000
--- a/rv64cpu/tb/unit/tb_alu.cc
+++ /dev/null
@@ -1,136 +0,0 @@
-//     Richard CPU
-//     Copyright (C) 2026  Richard Qin
-//     This program is free software: you can redistribute it and/or modify
-//     it under the terms of the GNU General Public License as published by
-//     the Free Software Foundation, either version 3 of the License, or
-//     (at your option) any later version.
-
-//     This program is distributed in the hope that it will be useful,
-//     but WITHOUT ANY WARRANTY; without even the implied warranty of
-//     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-//     GNU General Public License for more details.
-
-//     You should have received a copy of the GNU General Public License
-//     along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-// File path: tb/unit/tb_alu.cc
-// Description: ALU unit test
-#include "Valu.h"
-#include <cassert>
-#include <cstdint>
-#include <iostream>
-#include <verilated.h>
-
-enum AluOp {
-    ALU_ADD    = 0,
-    ALU_SUB    = 8,
-    ALU_SLL    = 1,
-    ALU_SLT    = 2,
-    ALU_SLTU   = 3,
-    ALU_XOR    = 4,
-    ALU_SRL    = 5,
-    ALU_SRA    = 13,
-    ALU_OR     = 6,
-    ALU_AND    = 7,
-    ALU_MUL    = 16,
-    ALU_MULH   = 17,
-    ALU_MULHSU = 18,
-    ALU_MULHU  = 19,
-    ALU_DIV    = 20,
-    ALU_DIVU   = 21,
-    ALU_REM    = 22,
-    ALU_REMU   = 23
-};
-
-void test_alu(Valu* alu, uint8_t op, uint64_t rs1, uint64_t rs2, uint64_t expected, const char* test_name) {
-    alu->alu_op = op;
-    alu->operand_a = rs1;
-    alu->operand_b = rs2;
-
-    alu->eval();
-    
-    if (alu->alu_result == expected) {
-        std::cout << "\033[32m";
-        std::cout << "[PASS] " << test_name << " | " 
-                  << rs1 << " op " << rs2 << " = " << expected << "\033[0m" << std::endl;
-    } else {
-        std::cout << "\033[31m";
-        std::cerr << "[FAIL] " << test_name << " | " 
-                  << "Expected: " << expected << ", Got: " << alu->alu_result << "\033[0m" << std::endl;
-        assert(false);
-    }
-}
-
-int main(int argc, char** argv) {
-    Verilated::commandArgs(argc, argv);
-    Valu* alu = new Valu;
-    
-    std::cout << "----------------------------------" << std::endl;
-    std::cout << "        ALU Unit Test" << std::endl;
-    std::cout << "----------------------------------" << std::endl;
-    
-    test_alu(alu, ALU_ADD, 100, 50, 150, "ADD_Positive");
-    test_alu(alu, ALU_SUB, 100, 50, 50,  "SUB_Positive");
-
-    test_alu(alu, ALU_ADD, (uint64_t)-5, 10, 5, "ADD_Negative");
-
-    test_alu(alu, ALU_AND, 0xFF00, 0x0F0F, 0x0F00, "AND_Mask");
-    test_alu(alu, ALU_XOR, 0xAAAA, 0xFFFF, 0x5555, "XOR_Invert");
-
-    test_alu(alu, ALU_SLL, 1, 10, 1024, "SLL_By_10");
-
-    uint64_t minus_one = (uint64_t)-1;
-    uint64_t five = 5;
-
-    test_alu(alu, ALU_SLTU, minus_one, five, 0, "SLTU (Unsigned: -1 < 5 is False)");
-    test_alu(alu, ALU_SLT,  minus_one, five, 1, "SLT  (Signed: -1 < 5 is True)");
-
-
-    // Missing Basic Operations
-    test_alu(alu, ALU_OR,  0xAAAA, 0x5555, 0xFFFF, "OR_All_Bits");
-    test_alu(alu, ALU_SRL, 0xF000000000000000ULL, 4, 0x0F00000000000000ULL, "SRL_By_4");
-    
-    // Arithmetic Right Shift (SRA)
-    test_alu(alu, ALU_SRA, 0xF000000000000000ULL, 4, 0xFF00000000000000ULL, "SRA_Negative_By_4");
-    test_alu(alu, ALU_SRA, 0x7000000000000000ULL, 4, 0x0700000000000000ULL, "SRA_Positive_By_4");
-
-    // Shift Edge Cases
-    test_alu(alu, ALU_SLL, 1,  0,  1, "SLL_By_0");
-    test_alu(alu, ALU_SLL, 1, 63,  0x8000000000000000ULL, "SLL_By_63");
-    test_alu(alu, ALU_SRL, 0x8000000000000000ULL, 63, 1, "SRL_By_63");
-    test_alu(alu, ALU_SRA, 0x8000000000000000ULL, 63, 0xFFFFFFFFFFFFFFFFULL, "SRA_By_63_SignExt");
-
-    // All 0 / All 1 Cases
-    test_alu(alu, ALU_ADD, 0, 0, 0, "ADD_Zero");
-    test_alu(alu, ALU_ADD, 0xFFFFFFFFFFFFFFFFULL, 1, 0, "ADD_Overflow");
-    test_alu(alu, ALU_XOR, 0xFFFFFFFFFFFFFFFFULL, 0xFFFFFFFFFFFFFFFFULL, 0, "XOR_Same");
-
-    // SLT / SLTU Same Value
-    test_alu(alu, ALU_SLT,  100, 100, 0, "SLT_Same_Value");
-    test_alu(alu, ALU_SLTU, 100, 100, 0, "SLTU_Same_Value");
-    
-    // SLT Edge Cases
-    test_alu(alu, ALU_SLT, 0x8000000000000000ULL, 0x7FFFFFFFFFFFFFFFULL, 1, "SLT_Min_max");
-    test_alu(alu, ALU_SLT, 0x7FFFFFFFFFFFFFFFULL, 0x8000000000000000ULL, 0, "SLT_Max_Min");
-
-    // M extension
-    test_alu(alu, ALU_MUL, 7, 6, 42, "MUL_Positive");
-    test_alu(alu, ALU_MUL, 0xFFFFFFFFFFFFFFFFULL, 2, 0xFFFFFFFFFFFFFFFEULL, "MUL_NegativeLow");
-    test_alu(alu, ALU_MULH, 0xFFFFFFFFFFFFFFFFULL, 2, 0xFFFFFFFFFFFFFFFFULL, "MULH_Negative");
-    test_alu(alu, ALU_MULHU, 0xFFFFFFFFFFFFFFFFULL, 2, 1, "MULHU_UnsignedHigh");
-    test_alu(alu, ALU_DIV, (uint64_t)-21, 4, (uint64_t)-5, "DIV_SignedTruncTowardZero");
-    test_alu(alu, ALU_DIVU, 21, 4, 5, "DIVU");
-    test_alu(alu, ALU_REM, (uint64_t)-21, 4, (uint64_t)-1, "REM_Signed");
-    test_alu(alu, ALU_REMU, 21, 4, 1, "REMU");
-    test_alu(alu, ALU_DIV, 123, 0, 0xFFFFFFFFFFFFFFFFULL, "DIV_ByZero");
-    test_alu(alu, ALU_REM, 123, 0, 123, "REM_ByZero");
-    test_alu(alu, ALU_DIV, 0x8000000000000000ULL, 0xFFFFFFFFFFFFFFFFULL,
-             0x8000000000000000ULL, "DIV_Overflow");
-    test_alu(alu, ALU_REM, 0x8000000000000000ULL, 0xFFFFFFFFFFFFFFFFULL, 0, "REM_Overflow");
-    std::cout << "----------------------------------" << std::endl;
-    std::cout << "\033[32mAll tests passed!\033[0m" << std::endl;
-    std::cout << "----------------------------------" << std::endl;
-
-    delete alu;
-    return 0;
-}