Vastly overhauled the UI, there's now a completely new Settings dialog as well as a status bar with disk activity icons and removable drive menus;

Thoroughly clean up the code to vastly reduce the number of compiler warnings and found and fixed several bugs in the process;
Applied all mainline PCem commits;
Added SCSI hard disk emulation;
Commented out all unfinished machines and graphics cards;
Added the AOpen AP53 and ASUS P/I-P55T2 machines as well as another Tyan 440FX machine, all three with AMI WinBIOS (patch from TheCollector1995);
Added the Diamond Stealth 3D 3000 (S3 ViRGE/VX) graphics card (patch from TheCollector1995);
Added the PS/2 XT IDE (AccuLogic) HDD Controller (patch from TheCollector1995);
Added Microsoft/Logitech Bus Mouse emulation (patch from waltje);
Overhauled the makefiles (patch from waltje);
Added the Adaptec AHA-1542CF SCSI controller (patch from waltje);
Added preliminary (but still unfinished) Adaptec AHA-154x SCSI controller BIOS support (patch from waltje);
Added an ISABugger debugging device (patch from waltje);
Added sanity checks to the Direct3D code.

src/lpt.c

@@ -4,6 +4,7 @@
 #include "ibm.h"
 #include "io.h"
 
+#include "dac.h"
 #include "lpt.h"
 
 static uint8_t lpt1_dat, lpt2_dat;
@@ -14,11 +15,11 @@ void lpt1_write(uint16_t port, uint8_t val, void *priv)
         switch (port & 3)
         {
                 case 0:
-                writedac(val);
+                writedac(port, val);
                 lpt1_dat = val;
                 break;
                 case 2:
-                writedacctrl(val);
+                writedacctrl(port, val);
                 lpt1_ctrl = val;
                 break;
         }
@@ -42,11 +43,11 @@ void lpt2_write(uint16_t port, uint8_t val, void *priv)
         switch (port & 3)
         {
                 case 0:
-                writedac(val);
+                writedac(port, val);
                 lpt2_dat = val;
                 break;
                 case 2:
-                writedacctrl(val);
+                writedacctrl(port, val);
                 lpt2_ctrl = val;
                 break;
         }
@@ -72,7 +73,7 @@ void lpt_init()
         io_sethandler(0x0378, 0x0003, lpt1_read, NULL, NULL, lpt1_write, NULL, NULL,  NULL);
         io_sethandler(0x0278, 0x0003, lpt2_read, NULL, NULL, lpt2_write, NULL, NULL,  NULL);
 	lpt_addr[0] = 0x378;
-	lpt_addr[1] = 0x378;
+	lpt_addr[1] = 0x278;
 }
 
 void lpt1_init(uint16_t port)