diff options
Diffstat (limited to 'mknes.c')
| -rw-r--r-- | mknes.c | 87 |
1 files changed, 65 insertions, 22 deletions
@@ -18,10 +18,25 @@ #include <stdlib.h> #include <stdint.h> #include <stdbool.h> +#include <stddef.h> #include <math.h> #include <string.h> + + + +static size_t state_dump_count; +static FILE *state_dump_file; + + + + + + + + + #define BUFFER_WIDTH 256 #define BUFFER_HEIGHT 240 #define WINDOW_WIDTH 320 * 3 @@ -161,11 +176,11 @@ struct main_state state __attribute__((aligned(64))); #include "mkfw.h" #include "platform_opengl.c" -static size_t sprite_counts[8]; static uint32_t frames; // debug information -// static int32_t tas_frame_count; +static int32_t tas_frame; -// #include "smb_tas.h" // REMOVE ME +// #include "helpers/battletoads_tas.h" // REMOVE ME +#include "helpers/smb_tas.h" // REMOVE ME // NES core #include "mknes_mapper.h" @@ -184,6 +199,21 @@ static uint32_t frames; // debug information // struct nes_state nstate; +static void dump_state(struct nes_state *state) { + size_t state_size = offsetof(struct nes_state, ram); + + if(!state_dump_file) { + state_dump_file = fopen("state_dump.bin", "wb"); + if(!state_dump_file) { + fprintf(stderr, "Failed to open state_dump.bin for writing\n"); + return; + } + } + + fwrite(state, 1, state_size, state_dump_file); + state_dump_count++; +} + static void framebuffer_callback(struct mkfw_state *mkfw_window, int32_t width, int32_t height, float aspect_ratio) { // state.screen_width = width; // state.screen_height = height; @@ -349,33 +379,38 @@ int main(int argc, char **argv) { // Joypad input uint8_t input = 0; - if(window->keyboard_state[MKS_KEY_X]) { input |= (1 << 0); } - if(window->keyboard_state[MKS_KEY_Z]) { input |= (1 << 1); } - if(window->keyboard_state[MKS_KEY_SPACE]) { input |= (1 << 2); } - if(window->keyboard_state[MKS_KEY_RETURN]) { input |= (1 << 3); } - if(window->keyboard_state[MKS_KEY_UP]) { input |= (1 << 4); } - if(window->keyboard_state[MKS_KEY_DOWN]) { input |= (1 << 5); } - if(window->keyboard_state[MKS_KEY_LEFT]) { input |= (1 << 6); } - if(window->keyboard_state[MKS_KEY_RIGHT]) { input |= (1 << 7); } - nstate->ppu.input[0] = input; + // if(window->keyboard_state[MKS_KEY_X]) { input |= (1 << 0); } + // if(window->keyboard_state[MKS_KEY_Z]) { input |= (1 << 1); } + // if(window->keyboard_state[MKS_KEY_SPACE]) { input |= (1 << 2); } + // if(window->keyboard_state[MKS_KEY_RETURN]) { input |= (1 << 3); } + // if(window->keyboard_state[MKS_KEY_UP]) { input |= (1 << 4); } + // if(window->keyboard_state[MKS_KEY_DOWN]) { input |= (1 << 5); } + // if(window->keyboard_state[MKS_KEY_LEFT]) { input |= (1 << 6); } + // if(window->keyboard_state[MKS_KEY_RIGHT]) { input |= (1 << 7); } + // nstate->ppu.input[0] = input; // Run NES emulation for one frame while(!nstate->ppu.frame_ready) { cpu_tick(nstate); } nstate->ppu.frame_ready = 0; - if(nstate->ppu.open_bus > 0) { - int32_t v = nstate->ppu.open_bus; - v -= 5; - if(v < 0) { - v = 0; - } - nstate->ppu.open_bus = v; - } - + // if(nstate->ppu.open_bus > 0) { + // int32_t v = nstate->ppu.open_bus; + // v -= 5; + // if(v < 0) { + // v = 0; + // } + // nstate->ppu.open_bus = v; + // } + nstate->ppu.input[0] = tas_input[tas_frame++]; frames++; + // Dump state every frame starting from 2400 + if(frames >= 2400 && frames <= 3100) { + dump_state(nstate); + } + // Convert NES pixels to display buffer uint32_t * restrict dst = display_buffer; uint8_t * restrict src = nstate->pixels; @@ -395,12 +430,20 @@ int main(int argc, char **argv) { // Render and swap buffers render_frame(); mkfw_swap_buffers(window); - timer_wait(timer); + if(!window->keyboard_state[MKS_KEY_F]) { + timer_wait(timer); + } } printf("total frames: %6d total cycles: %12llu\n", frames, (unsigned long long)nstate->cpu.cycles); + printf("state dumps created: %zu\n", state_dump_count); + + if(state_dump_file) { + fclose(state_dump_file); + } timer_destroy(timer); + free(nstate); // free_nes_state(&nstate); timer_shutdown(); mkfw_cleanup(window); |