vortex/sim/rtlsim/main.cpp

115 lines
2.6 KiB
C++

// Copyright © 2019-2023
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <iostream>
#include <fstream>
#include <iomanip>
#include <unistd.h>
#include <util.h>
#include <mem.h>
#include <VX_config.h>
#include <VX_types.h>
#include "processor.h"
#define RAM_PAGE_SIZE 4096
using namespace vortex;
static void show_usage() {
std::cout << "Usage: [-r: riscv-test] [-h: help] <program>" << std::endl;
}
bool riscv_test = false;
const char* program = nullptr;
static void parse_args(int argc, char **argv) {
int c;
while ((c = getopt(argc, argv, "rh?")) != -1) {
switch (c) {
case 'r':
riscv_test = true;
break;
case 'h':
case '?':
show_usage();
exit(0);
break;
default:
show_usage();
exit(-1);
}
}
if (optind < argc) {
program = argv[optind];
std::cout << "Running " << program << "..." << std::endl;
} else {
show_usage();
exit(-1);
}
}
int main(int argc, char **argv) {
int exitcode = 0;
parse_args(argc, argv);
// create memory module
vortex::RAM ram(0, RAM_PAGE_SIZE);
// create processor
vortex::Processor processor;
// attach memory module
processor.attach_ram(&ram);
// setup base DCRs
const uint64_t startup_addr(STARTUP_ADDR);
processor.write_dcr(VX_DCR_BASE_STARTUP_ADDR0, startup_addr & 0xffffffff);
#if (XLEN == 64)
processor.write_dcr(VX_DCR_BASE_STARTUP_ADDR1, startup_addr >> 32);
#endif
processor.write_dcr(VX_DCR_BASE_MPM_CLASS, 0);
// load program
{
std::string program_ext(fileExtension(program));
if (program_ext == "bin") {
ram.loadBinImage(program, startup_addr);
} else if (program_ext == "hex") {
ram.loadHexImage(program);
} else {
std::cout << "*** error: only *.bin or *.hex images supported." << std::endl;
return -1;
}
}
// run simulation
exitcode = processor.run();
if (riscv_test) {
if (1 == exitcode) {
std::cout << "Passed" << std::endl;
exitcode = 0;
} else {
std::cout << "Failed" << std::endl;
exitcode = 1;
}
} else {
if (exitcode != 0) {
std::cout << "*** error: exitcode=" << exitcode << std::endl;
}
}
return exitcode;
}