Turingon/8080-Emulator
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Luxdragon 2024-01-15 20:44:19 +01:00
parent 2b343e6dca
commit 8e0625a750
1 changed files with 26 additions and 28 deletions
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54
emulator_shell.c
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@ -3,10 +3,10 @@
#include <stdint.h> // for the uintx_t's
#include <unistd.h> // for sleep
#include <gtk/gtk.h>
#include <pthread.h>
// gcc emulator_shell.c `pkg-config --cflags --libs gtk+-3.0` -o emulator
// gcc emulator_shell.c `pkg-config --cflags --libs gtk+-3.0` -lpthread -o emulator
#define FREQUENCY 500
#define WIDTH 224
#define HEIGHT 256
@ -986,16 +986,6 @@ void keyUp( uint8_t key)
}
}
void simulateNanoseconds(unsigned int numNanoseconds)
{
struct timespec sleepTime;
sleepTime.tv_sec = 0;
sleepTime.tv_nsec = numNanoseconds;
// Pause the program execution for the specified duration
nanosleep(&sleepTime, NULL);
}
typedef struct cpu_data {
char done;
int total_cycles_count;
@ -1008,18 +998,24 @@ typedef struct cpu_data {
static void draw_callback(GtkWidget *widget, cairo_t *cr, gpointer user_data) {
int x, y;
for (y = 0; y < HEIGHT; y++) {
for (x = 0; x < WIDTH; x++) {
int upscaleFactor = 4;
for (x = 0; x < WIDTH; x++) {
for (y = 0; y < HEIGHT; y++) {
if (bitmap[y * WIDTH + x]) {
cairo_rectangle(cr, x, y, 1, 1);
cairo_fill(cr);
cairo_set_source_rgb(cr, 1.0, 1.0, 1.0); // Set color to white
} else {
cairo_set_source_rgb(cr, 0.0, 0.0, 0.0); // Set color to black
}
cairo_rectangle(cr, x * upscaleFactor, y * upscaleFactor, upscaleFactor, upscaleFactor);
cairo_fill(cr);
}
}
}
static gboolean cpu(gpointer user_data) {
cpu_data *cpu = user_data;
void *cpu(void* arg) {
cpu_data *cpu = (cpu_data*) arg;
char done = cpu->done;
State8080* state = cpu->state;
int counter;
@ -1028,10 +1024,10 @@ static gboolean cpu(gpointer user_data) {
counter = emulate8080(cpu->state);
cpu->total_cycles_count += counter;
simulateNanoseconds(FREQUENCY * counter); // EMULATION OF THE PROCESSOR ŠPEED
usleep(counter / 2); // EMULATION OF THE PROCESSOR ŠPEED
if ((cpu->total_cycles_count > 16000000) && (state->int_enable)) //1/60 second has elapsed
{
gtk_widget_queue_draw(user_data);
//redraw screen() will be handeled by the gtk_main() function
if (which_interrupt == 2) {
generateInterrupt(state, 2); //interrupt 2
cpu->total_cycles_count = 0;
@ -1067,7 +1063,6 @@ int main (int argc, char *argv[]) {
// GTK INIT
gtk_init(&argc, &argv);
GtkWidget *window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
g_print("Test\n");
gtk_window_set_default_size(GTK_WINDOW(window), 800, 600);
gtk_window_set_title(GTK_WINDOW(window), "Lux8080-Emulator");
g_signal_connect(window, "key-press-event", G_CALLBACK(on_key_press), NULL);
@ -1077,24 +1072,27 @@ int main (int argc, char *argv[]) {
// DRAWING AREA INIT
bitmap = &(state->memory[0x2400]);
GtkWidget *drawing_area = gtk_drawing_area_new();
gtk_widget_set_app_paintable(drawing_area, TRUE);
gtk_container_add(GTK_CONTAINER(window), drawing_area);
g_signal_connect(drawing_area, "draw", G_CALLBACK(draw_callback), NULL);
gtk_widget_show_all(window);
// CPU INIT
// CPU INIT
cpu_data *cpu_eco = malloc(sizeof(cpu_data));
cpu_eco->state = state;
cpu_eco->drawing_area = drawing_area;
cpu_eco->done = 0;
cpu_eco->total_cycles_count = 0;
g_idle_add(cpu, cpu_eco);
//MAIN LOOP & TERMINATION
// PTHREAD
pthread_t pid;
pthread_create(&pid, NULL, cpu, (void*) cpu_eco);
//MAIN LOOP & TERMINATION //gtk_widget_queue_draw
g_timeout_add(16, (GSourceFunc)gtk_widget_queue_draw, drawing_area);
gtk_main();
pthread_join(pid, NULL);
free(state->memory);
free(state);
free(cpu_eco);