mirror of https://github.com/st3fan/ewm.git
121 lines
4.1 KiB
C
121 lines
4.1 KiB
C
// The MIT License (MIT)
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//
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// Copyright (c) 2015 Stefan Arentz - http://github.com/st3fan/ewm
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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#include <inttypes.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <time.h>
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#include "cpu.h"
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#include "mem.h"
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#include "utl.h"
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#include "lua.h"
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int test(int model, uint16_t start_addr, uint16_t success_addr, char *rom_path) {
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struct cpu_t *cpu = cpu_create(model);
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cpu_add_ram_file(cpu, 0x0000, rom_path);
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cpu_reset(cpu);
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cpu->state.pc = start_addr;
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#if 1
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cpu->lua = ewm_lua_create();
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ewm_cpu_init_lua(cpu, cpu->lua);
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if (ewm_lua_load_script(cpu->lua, "cpu_test.lua") != 0) {
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printf("Lua script failed to load\n"); // TODO Move errors reporting into C code
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exit(1);
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}
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#endif
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uint16_t last_pc = cpu->state.pc;
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struct timespec start;
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if (clock_gettime(CLOCK_REALTIME, &start) != 0) {
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perror("Cannot get time");
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exit(1);
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}
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while (true) {
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int ret = cpu_step(cpu);
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if (ret < 0) {
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switch (ret) {
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case EWM_CPU_ERR_UNIMPLEMENTED_INSTRUCTION:
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fprintf(stderr, "TEST Unimplemented instruction 0x%.2x at 0x%.4x\n",
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mem_get_byte(cpu, cpu->state.pc), cpu->state.pc);
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return -1;
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default:
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fprintf(stderr, "TEST Unexpected error %d\n", ret);
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return -1;
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}
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}
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// End of the tests is at 0x3399. This is hard coded and not
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// ideal. Is there a better way to detect this?
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if (cpu->state.pc == success_addr) {
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struct timespec now;
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if (clock_gettime(CLOCK_REALTIME, &now) != 0) {
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perror("Cannot get time");
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exit(1);
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}
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// Taking a shortcut here because our test will never run so
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// long that it will overflow an uint64_t
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uint64_t duration_ms = (now.tv_sec * 1000 + (now.tv_nsec / 1000000))
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- (start.tv_sec * 1000 + (start.tv_nsec / 1000000));
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double duration = (double) duration_ms / 1000.0;
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double mhz = (double) cpu->counter * (1.0 / duration) / 1000000.0;
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fprintf(stderr, "TEST Success; executed %" PRIu64 " cycles in %.4f at %.4f MHz\n",
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cpu->counter, duration, mhz);
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return 0;
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}
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// We detect a test failure because we are in a branch deadlock,
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// which we can easily detect by remembering the previous pc and
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// then looking at what we are about to execute.
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if (cpu->state.pc == last_pc) {
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uint8_t i = mem_get_byte(cpu, cpu->state.pc);
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if (i == 0x10 || i == 0x30 || i == 0x50 || i == 0x70 || i == 0x90 || i == 0xb0 || i == 0xd0 || i == 0xf0) {
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if (mem_get_byte(cpu, cpu->state.pc + 1) == 0xfe) {
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fprintf(stderr, "TEST Failure at 0x%.4x \n", cpu->state.pc);
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return -1;
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}
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}
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}
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last_pc = cpu->state.pc;
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}
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}
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int main(int argc, char **argv) {
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fprintf(stderr, "TEST Running 6502 tests\n");
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test(EWM_CPU_MODEL_6502, 0x0400, 0x3399, "rom/6502_functional_test.bin");
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fprintf(stderr, "TEST Running 65C02 tests\n");
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test(EWM_CPU_MODEL_65C02, 0x0400, 0x24a8, "rom/65C02_extended_opcodes_test.bin");
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}
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