PCI and IRQ rework, pci.c rewritten from ground up, fixes numerous issues such as the bridge being added when the number of normal PCI devices equals the number of normal PCI slots, Windows 95 PCI operation on Intel 430NX, sharing of PCI IRQ's with non-PCI level-triggered devices, having both configuration mechanisms operating at the same time (ALi M1435), etc., and makes the code much more readable.

src/86box.c

@@ -1048,19 +1048,9 @@ pc_reset_hard_init(void)
     /* Initialize the actual machine and its basic modules. */
     machine_init();
 
-    /* Reset and reconfigure the serial ports. */
-    serial_standalone_init();
-    serial_passthrough_init();
-
-    /* Reset and reconfigure the Sound Card layer. */
-    sound_card_reset();
-
-    /* Reset any ISA RTC cards. */
-    isartc_reset();
-
-    fdc_card_init();
-
-    fdd_reset();
+    /* Reset some basic devices. */
+    speaker_init();
+    shadowbios = 0;
 
     /*
      * Once the machine has been initialized, all that remains
@@ -1071,38 +1061,49 @@ pc_reset_hard_init(void)
      * that will be a call to device_reset_all() later !
      */
 
-    /* Reset some basic devices. */
-    speaker_init();
-    lpt_devices_init();
-    shadowbios = 0;
-
     /*
      * Reset the mouse, this will attach it to any port needed.
      */
     mouse_reset();
 
+    if (joystick_type)
+        gameport_update_joystick_type();
+
+    /* Reset and reconfigure the Sound Card layer. */
+    sound_card_reset();
+
+    /* Reset and reconfigure the Network Card layer. */
+    network_reset();
+
+    lpt_devices_init();
+
+    /* Reset and reconfigure the serial ports. */
+    serial_standalone_init();
+    serial_passthrough_init();
+
     /* Reset the Hard Disk Controller module. */
     hdc_reset();
 
+    fdc_card_init();
+
+    fdd_reset();
+
     /* Reset the CD-ROM Controller module. */
     cdrom_interface_reset();
 
     /* Reset and reconfigure the SCSI layer. */
     scsi_card_init();
 
-    cdrom_hard_reset();
+    scsi_disk_hard_reset();
 
-    zip_hard_reset();
+    cdrom_hard_reset();
 
     mo_hard_reset();
 
-    scsi_disk_hard_reset();
+    zip_hard_reset();
 
-    /* Reset and reconfigure the Network Card layer. */
-    network_reset();
-
-    if (joystick_type)
-        gameport_update_joystick_type();
+    /* Reset any ISA RTC cards. */
+    isartc_reset();
 
     ui_sb_update_panes();
 
@@ -1119,6 +1120,11 @@ pc_reset_hard_init(void)
     if (postcard_enabled)
         device_add(&postcard_device);
 
+    if (IS_ARCH(machine, MACHINE_BUS_PCI)) {
+        pci_register_cards();
+        device_reset_all(DEVICE_PCI);
+    }
+
     /* Reset the CPU module. */
     resetx86();
     dma_reset();