Fixed RTL8029AS PCI register write handlers;

Disabled the Nation Semiconductors PC87306's IDE handler, the board replaces it with the PCI IDE device anyway;
The Commodore PC 300 now remaps the top 384k of RAM;
The network card is now initialized after the SCSI controller;
The graphics cards remain on the INTA pin, but the network card is now on INTC, and the SCSI controller on INTB;
S3 Vision/Trio emulation brought completely in line with mainline PCem, fixes Windows 2000 freezes.

src/pc.c

@@ -502,7 +502,6 @@ void resetpchard_init(void)
         model_init();
         video_init();
         speaker_init();        
-	network_reset();
 
 	ide_ter_disable();
 	ide_qua_disable();
@@ -519,6 +518,7 @@ void resetpchard_init(void)
 
         resetide();
 	scsi_card_init();
+	network_reset();
 
         sound_card_init();
         if (mpu401_standalone_enable)