first mknes commit

1 files changed, 102 insertions, 0 deletions

diff --git a/mknes.c b/mknes.c
new file mode 100644
index 0000000..0027ce6
--- /dev/null
+++ b/mknes.c
@@ -0,0 +1,102 @@
+
+
+#include "base.c"
+
+#include "mknes.h"
+// #include "apu.c"
+#include "ppu.c"
+#include "memory.c"
+#include "cpu.c"
+#include "ines2.c"
+
+
+
+
+static void render_callback() {
+
+}
+
+static void audio_callback(int16_t *buffer, size_t frames) {
+
+}
+
+static void init_callback() {
+}
+
+// int main(void) {
+// 	struct nes_state state = {0};
+
+// 	init_opcode_lut();
+// 	init_opcode_ud_lut();
+// 	state.cpu.sp = 0xfd;
+
+// 	// FILE *f = fopen("nestest.nes", "rb");
+// 	// fseek(f, 16, SEEK_SET);
+// 	// fread(&state.memory[0xc000], 1, 0x4000, f);
+// 	// fclose(f);
+// 	// state.cpu.pc = 0xc000;
+
+// 	FILE *f = fopen("6502_functional_test.bin", "rb");
+// 	fread(state.memory, 1, 0x10000, f);
+// 	fclose(f);
+// 	state.cpu.pc = 0x0400;
+
+// 	size_t i;
+// 	for(i = 0; i < 70000000; ++i) {
+// 		cpu_tick(&state);
+// 		if(state.cpu.pc == 0x3469) break;
+// 	}
+// 	// printf("%lld", i);
+// 	return 0;
+// }
+
+
+
+
+// bool running = true;
+// uint64_t next_update = mkfw_gettime();
+// int64_t frame_duration_ns = 16666667;	// NTSC ~60.0988 Hz
+
+// audio_sync_init(next_update);	// Initialize sync base time
+
+// while(running && !mkfw_should_close()) {
+// 	mkfw_pump_messages();
+// 	if(key_pressed(MKS_KEY_ESCAPE)) { running = false; }
+
+// #ifdef PROFILER
+// 	reset_profiling_data();
+// #endif
+
+// 	render_callback();
+// 	apply_phosphor_decay();
+// 	update_keyboard_state();
+// 	update_modifier_state();
+// 	update_mouse_state();
+// 	state.frame_number++;
+
+// #ifndef PERF_TEST
+// 	render_frame();
+// #ifdef PROFILER
+// 	debug_render();
+// #endif
+
+// 	audio_throttle_emulator(state.frame_number, &frame_duration_ns);
+
+// 	uint64_t now = mkfw_gettime();
+// 	int64_t remaining = next_update - now;
+
+// 	if(remaining > 0) {
+// 		if(remaining > ONE_MILLISECOND_NS) {
+// 			mkfw_sleep(remaining - ONE_MILLISECOND_NS);
+// 		}
+// 		while(mkfw_gettime() < next_update) { /**/ }
+// 	} else {
+// 		next_update = now;
+// 	}
+
+// 	next_update += frame_duration_ns;
+
+// 	mkfw_swap_buffers();
+// #endif
+// }
+