Timer counters now 64-bit;

Cleaned up floppy code a lot and reverted to single poller;
Fixed segment present bit and limit checking at read/write within segment;
The ASUS boards now have memregs too;
RTC code improved based on suggestion by Sarah Walker;
Fixed SVGA odd/even emulation and added chain odd/even support;
Removed non-existent CPU's.

src/mouse.h

@@ -1,5 +1,5 @@
 extern void (*mouse_poll)(int x, int y, int b);
 
 extern int mousepos;
-extern int mousedelay;
+extern int64_t mousedelay;