+COMMAND_IMPL(display) {
+ (void)arg_count, (void)arg_vector;
+
+ static DPIX *pixbuf = NULL;
+
+ if (pixbuf) {
+ printf("display already enabled..\n");
+ return 0;
+ }
+
+ pixbuf = display_init_pixbuf();
+ if (pixbuf == NULL) {
+ fprintf(stderr, "failed to initialize display buffer\n");
+ return 0;
+ }
+
+ if (dcpu16_acct_add(vm, DCPU16_ACCT_EV_WRITE, display_fn, pixbuf)) {
+ fprintf(stderr, "failed to register display update callback\n");
+ return 0;
+ }
+
+ if (dcpu16_acct_add(vm, DCPU16_ACCT_EV_RESET, display_reset_fn, pixbuf)) {
+ fprintf(stderr, "failed to register display reset callback\n");
+ return 0;
+ }
+
+ /* init display as if reset occurred */
+ display_reset_fn(vm, DCPU16_ACCT_EV_RESET, 0, pixbuf);
+
+ return 0;
+}
+COMMAND_HELP(display) {
+ fprintf(f, "\tdisplay\n");
+ if (summary) return;
+
+ fprintf(f, "Begins updating a PNM of current display contents...\n"
+ "This is not a fully-baked feature...\n");
+}
+