Updated ROM BIOS handling to use the external loader.

Several cleanups and fixes here and there.
Updated (Windows) UI to properly handle resets and changes in Settings.
Updated to no longer scan for roms at startup.

src/pc.c

@@ -8,7 +8,7 @@
  *
  *		Main emulator module where most things are controlled.
  *
- * Version:	@(#)pc.c	1.0.2	2018/02/24
+ * Version:	@(#)pc.c	1.0.3	2018/03/01
  *
  * Authors:	Fred N. van Kempen, <decwiz@yahoo.com>
  *		Miran Grca, <mgrca8@gmail.com>
@@ -299,7 +299,7 @@ fatal(const char *fmt, ...)
 int
 pc_init(int argc, wchar_t *argv[])
 {
-    wchar_t path[2048];
+    wchar_t path[1024];
     wchar_t *cfg = NULL, *p;
     char temp[128];
     struct tm *info;
@@ -587,7 +587,6 @@ pc_reload(wchar_t *fn)
     fdd_load(3, floppyfns[3]);
 
     mem_resize();
-    rom_load_bios(romset);
     network_init();
 
     pc_reset_hard_init();
@@ -598,67 +597,42 @@ pc_reload(wchar_t *fn)
 int
 pc_init_modules(void)
 {
-    int c, i;
-
-    pclog("Scanning for ROM images:\n");
-    for (c=0,i=0; i<ROM_MAX; i++) {
-	romspresent[i] = rom_load_bios(i);
-	c += romspresent[i];
-    }
-    if (c == 0) {
-	/* No usable ROMs found, aborting. */
-	return(0);
-    }
-    pclog("A total of %d ROM sets have been loaded.\n", c);
+    wchar_t temp[1024];
+    wchar_t name[128];
+    wchar_t *str;
 
     /* Load the ROMs for the selected machine. */
-again:
-    if (! rom_load_bios(romset)) {
-	/* Whoops, ROMs not found. */
-	if (romset != -1)
-		ui_msgbox(MBX_INFO, (wchar_t *)IDS_2063);
+    if (! machine_available(machine)) {
+	/* Whoops, selected machine not available. */
+	str = plat_get_string(IDS_2063);
+	mbstowcs(name, machine_getname(), sizeof_w(name));
+	swprintf(temp, sizeof_w(temp), str, name);
 
-	/*
-	 * Select another machine to use.
-	 *
-	 * FIXME:
-	 * We should not do that here.  If something turns out
-	 * to be wrong with the configuration (such as missing
-	 * ROM images, we should just display a fatal message
-	 * in the render window's center, let them click OK,
-	 * and then exit so they can remedy the situation.
-	 */
-	for (c=0; c<ROM_MAX; c++) {
-		if (romspresent[c]) {
-			romset = c;
-			machine = machine_getmachine(romset);
-			config_save();
+	/* Show the messagebox, and abort if 'No' was selected. */
+	if (ui_msgbox(MBX_CONFIG, temp) == 1) return(0);
 
-			/* This can loop if all ROMs are now bad.. */
-			goto again;
-		}
-	}
+	/* OK, user wants to (re-)configure.. */
+	return(2);
     }
 
-    /* Make sure we have a usable video card. */
-    for (c=0; c<GFX_MAX; c++)
-	gfx_present[c] = video_card_available(video_old_to_new(c));
-again2:
     if (! video_card_available(video_old_to_new(gfxcard))) {
-	if (romset != -1) {
-		ui_msgbox(MBX_INFO, (wchar_t *)IDS_2064);
-	}
-	for (c=GFX_MAX-1; c>=0; c--) {
-		if (gfx_present[c]) {
-			gfxcard = c;
-			config_save();
+	/* Whoops, selected video not available. */
+	str = plat_get_string(IDS_2064);
+	mbstowcs(name, machine_getname(), sizeof_w(name));
+	swprintf(temp, sizeof_w(temp), str, name);
 
-			/* This can loop if all cards now bad.. */
-			goto again2;
-		}
-	}
+	/* Show the messagebox, and abort if 'No' was selected. */
+	if (ui_msgbox(MBX_CONFIG, temp) == 1) return(0);
+
+	/* OK, user wants to (re-)configure.. */
+	return(2);
     }
 
+    /*
+     * At this point, we know that the selected machine and
+     * video card are available, so we can proceed with the
+     * initialization of things.
+     */
     cpuspeed2 = (AT) ? 2 : 1;
     atfullspeed = 0;
 
@@ -708,60 +682,6 @@ again2:
 }
 
 
-/* Insert keystrokes into the machine's keyboard buffer. */
-// FIXME: move to keyboard.c */
-static void
-pc_keyboard_send(uint8_t val)
-{
-    if (AT)
-	keyboard_at_adddata_keyboard_raw(val);
-      else
-	keyboard_send(val);
-}
-
-
-/* Send the machine a Control-Alt-DEL sequence. */
-// FIXME: move to keyboard.c */
-void
-pc_send_cad(void)
-{
-    pc_keyboard_send(29);	/* Ctrl key pressed */
-    pc_keyboard_send(56);	/* Alt key pressed */
-    pc_keyboard_send(83);	/* Delete key pressed */
-    pc_keyboard_send(157);	/* Ctrl key released */
-    pc_keyboard_send(184);	/* Alt key released */
-    pc_keyboard_send(211);	/* Delete key released */
-}
-
-
-/* Send the machine a Control-Alt-ESC sequence. */
-// FIXME: move to keyboard.c */
-void
-pc_send_cae(void)
-{
-    pc_keyboard_send(29);	/* Ctrl key pressed */
-    pc_keyboard_send(56);	/* Alt key pressed */
-    pc_keyboard_send(1);	/* Esc key pressed */
-    pc_keyboard_send(129);	/* Esc key released */
-    pc_keyboard_send(184);	/* Alt key released */
-    pc_keyboard_send(157);	/* Ctrl key released */
-}
-
-
-/* Send the machine a Control-Alt-Break sequence. */
-// FIXME: move to keyboard.c */
-void
-pc_send_cab(void)
-{
-    pc_keyboard_send(29);	/* Ctrl key pressed */
-    pc_keyboard_send(56);	/* Alt key pressed */
-    pc_keyboard_send(1);	/* Esc key pressed */
-    pc_keyboard_send(157);	/* Ctrl key released */
-    pc_keyboard_send(184);	/* Alt key released */
-    pc_keyboard_send(129);	/* Esc key released */
-}
-
-
 void
 pc_reset_hard_close(void)
 {
@@ -936,7 +856,7 @@ pc_reset(int hard)
     if (hard)
         pc_reset_hard();
       else
-        pc_send_cad();
+        keyboard_send_cad();
 
     plat_pause(0);
 }