mirror of
https://github.com/dingusdev/dingusppc.git
synced 2024-11-18 22:05:51 +00:00
115 lines
3.7 KiB
C++
115 lines
3.7 KiB
C++
/*
|
|
DingusPPC - The Experimental PowerPC Macintosh emulator
|
|
Copyright (C) 2018-21 divingkatae and maximum
|
|
(theweirdo) spatium
|
|
|
|
(Contact divingkatae#1017 or powermax#2286 on Discord for more info)
|
|
|
|
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/>.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <chrono>
|
|
#include "cpu/ppc/ppcemu.h"
|
|
#include "cpu/ppc/ppcmmu.h"
|
|
#include "devices/memctrl/mpc106.h"
|
|
#include <thirdparty/loguru/loguru.hpp>
|
|
|
|
uint32_t cs_code[] = {
|
|
0x3863FFFC, 0x7C861671, 0x41820090, 0x70600002, 0x41E2001C, 0xA0030004,
|
|
0x3884FFFE, 0x38630002, 0x5486F0BF, 0x7CA50114, 0x41820070, 0x70C60003,
|
|
0x41820014, 0x7CC903A6, 0x84030004, 0x7CA50114, 0x4200FFF8, 0x5486E13F,
|
|
0x41820050, 0x80030004, 0x7CC903A6, 0x80C30008, 0x7CA50114, 0x80E3000C,
|
|
0x7CA53114, 0x85030010, 0x7CA53914, 0x42400028, 0x80030004, 0x7CA54114,
|
|
0x80C30008, 0x7CA50114, 0x80E3000C, 0x7CA53114, 0x85030010, 0x7CA53914,
|
|
0x4200FFE0, 0x7CA54114, 0x70800002, 0x41E20010, 0xA0030004, 0x38630002,
|
|
0x7CA50114, 0x70800001, 0x41E20010, 0x88030004, 0x5400402E, 0x7CA50114,
|
|
0x7C650194, 0x4E800020
|
|
};
|
|
|
|
|
|
int main(int argc, char** argv) {
|
|
int i;
|
|
|
|
/* initialize logging */
|
|
loguru::g_preamble_date = false;
|
|
loguru::g_preamble_time = false;
|
|
loguru::g_preamble_thread = false;
|
|
|
|
loguru::g_stderr_verbosity = 0;
|
|
loguru::init(argc, argv);
|
|
|
|
MPC106* grackle_obj = new MPC106;
|
|
|
|
/* we need some RAM */
|
|
if (!grackle_obj->add_ram_region(0, 0x9000)) {
|
|
LOG_F(ERROR, "Could not create RAM region");
|
|
delete(grackle_obj);
|
|
return -1;
|
|
}
|
|
|
|
constexpr uint64_t tbr_freq = 16705000;
|
|
|
|
ppc_cpu_init(grackle_obj, PPC_VER::MPC750, tbr_freq);
|
|
|
|
/* load executable code into RAM at address 0 */
|
|
for (i = 0; i < sizeof(cs_code); i++) {
|
|
mmu_write_vmem<uint32_t>(i*4, cs_code[i]);
|
|
}
|
|
|
|
srand(0xCAFEBABE);
|
|
|
|
for (i = 0; i < 32768; i++) {
|
|
mmu_write_vmem<uint8_t>(0x1000+i, rand() % 256);
|
|
}
|
|
|
|
/* prepare benchmark code execution */
|
|
ppc_state.pc = 0;
|
|
ppc_state.gpr[3] = 0x1000; // buf
|
|
ppc_state.gpr[4] = 0x8000; // len
|
|
ppc_state.gpr[5] = 0; // sum
|
|
|
|
ppc_exec_until(0xC4);
|
|
|
|
LOG_F(INFO, "Checksum: 0x%08X", ppc_state.gpr[3]);
|
|
|
|
// run the clock once for cache fill etc.
|
|
auto start_time = std::chrono::steady_clock::now();
|
|
auto end_time = std::chrono::steady_clock::now();
|
|
auto time_elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(end_time - start_time);
|
|
LOG_F(INFO, "Time elapsed (dry run): %lld ns", time_elapsed.count());
|
|
|
|
for (i = 0; i < 5; i++) {
|
|
ppc_state.pc = 0;
|
|
ppc_state.gpr[3] = 0x1000; // buf
|
|
ppc_state.gpr[4] = 0x8000; // len
|
|
ppc_state.gpr[5] = 0; // sum
|
|
|
|
auto start_time = std::chrono::steady_clock::now();
|
|
|
|
ppc_exec_until(0xC4);
|
|
|
|
auto end_time = std::chrono::steady_clock::now();
|
|
|
|
LOG_F(INFO, "Checksum: 0x%08X", ppc_state.gpr[3]);
|
|
|
|
auto time_elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(end_time - start_time);
|
|
LOG_F(INFO, "Time elapsed (run #%d): %lld ns", i, time_elapsed.count());
|
|
}
|
|
|
|
delete(grackle_obj);
|
|
|
|
return 0;
|
|
}
|