};
 
 static int mtrr                = 3;    /* enable mtrr by default */
-static bool blank      = 1;    /* enable blanking by default */
+static bool blank      = true; /* enable blanking by default */
 static int ypan                = 1;    /* 0: scroll, 1: ypan, 2: ywrap */
 static bool pmi_setpal = true; /* use PMI for palette changes */
 static bool nocrtc;            /* ignore CRTC settings */
                else if (!strcmp(this_opt, "ywrap"))
                        ypan = 2;
                else if (!strcmp(this_opt, "vgapal"))
-                       pmi_setpal = 0;
+                       pmi_setpal = false;
                else if (!strcmp(this_opt, "pmipal"))
-                       pmi_setpal = 1;
+                       pmi_setpal = true;
                else if (!strncmp(this_opt, "mtrr:", 5))
                        mtrr = simple_strtoul(this_opt+5, NULL, 0);
                else if (!strcmp(this_opt, "nomtrr"))
                        mtrr = 0;
                else if (!strcmp(this_opt, "nocrtc"))
-                       nocrtc = 1;
+                       nocrtc = true;
                else if (!strcmp(this_opt, "noedid"))
-                       noedid = 1;
+                       noedid = true;
                else if (!strcmp(this_opt, "noblank"))
-                       blank = 0;
+                       blank = true;
                else if (!strncmp(this_opt, "vtotal:", 7))
                        vram_total = simple_strtoul(this_opt + 7, NULL, 0);
                else if (!strncmp(this_opt, "vremap:", 7))