Major changes to NVR, system initialization (pc.c), and what goes on in the Windows startup (win.c.) Not fully done yet, but good enough for a first commit.

src/machine/machine_at.c

@@ -24,16 +24,20 @@ void machine_at_init(void)
 	AT = 1;
 
         machine_common_init();
+        pit_set_out_func(&pit, 1, pit_refresh_timer_at);
+        pic2_init();
+        dma16_init();
+
 	if (lpt_enabled)
 		lpt2_remove();
-	mem_add_bios();
-        pit_set_out_func(&pit, 1, pit_refresh_timer_at);
-        dma16_init();
-        keyboard_at_init();
+
         nvr_at_init(8);
-        pic2_init();
+
+        keyboard_at_init();
+
 	if (joystick_type != 7)
 		device_add(&gameport_device);
+
 	if (bugger_enabled)
 		bugger_init();
 }
@@ -41,17 +45,20 @@ void machine_at_init(void)
 void machine_at_ide_init(void)
 {
 	machine_at_init();
+
 	ide_init();
 }
 
 void machine_at_top_remap_init(void)
 {
 	machine_at_init();
+
 	mem_remap_top_384k();
 }
 
 void machine_at_ide_top_remap_init(void)
 {
 	machine_at_ide_init();
+
 	mem_remap_top_384k();
 }