Added emulation of the Intel 82335 chip for the Phoenix 386 clone;

Added the Samsung SPC-4200P;
Added the Chips & Technologies VGA 451;
Applied all mainline PCem commits;
Added Amstrad MegaPC 386DX model (exits per documentation that I have in German).

src/vid_vga.c

@@ -105,6 +105,27 @@ void *vga_init()
         return vga;
 }
 
+void *vga_chips_init()
+{
+        vga_t *vga = malloc(sizeof(vga_t));
+        memset(vga, 0, sizeof(vga_t));
+
+        rom_init(&vga->bios_rom, "roms/SD620.04M", 0xc0000, 0x8000, 0x7fff, 0x2000, MEM_MAPPING_EXTERNAL);
+
+        svga_init(&vga->svga, vga, 1 << 18, /*256kb*/
+                   NULL,
+                   vga_in, vga_out,
+                   NULL,
+                   NULL);
+
+        io_sethandler(0x03c0, 0x0020, vga_in, NULL, NULL, vga_out, NULL, NULL, vga);
+
+        vga->svga.bpp = 8;
+        vga->svga.miscout = 1;
+        
+        return vga;
+}
+
 void *trigem_unk_init()
 {
         vga_t *vga = malloc(sizeof(vga_t));
@@ -155,6 +176,11 @@ static int vga_available()
         return rom_present("roms/ibm_vga.bin");
 }
 
+static int vga_chips_available()
+{
+        return rom_present("roms/SD620.04M");
+}
+
 void vga_close(void *p)
 {
         vga_t *vga = (vga_t *)p;
@@ -196,6 +222,17 @@ device_t vga_device =
         vga_force_redraw,
         vga_add_status_info
 };
+device_t vga_chips_device =
+{
+        "Chips VGA",
+        0,
+        vga_chips_init,
+        vga_close,
+        vga_chips_available,
+        vga_speed_changed,
+        vga_force_redraw,
+        vga_add_status_info
+};
 device_t trigem_unk_device =
 {
         "VGA",