The NE1000 and NE2000 can now use IRQ 2 and 4.

src/network/net_ne2000.c

@@ -14,7 +14,7 @@
  *
  * NOTE:	The file will also implement an NE1000 for 8-bit ISA systems.
  *
- * Version:	@(#)net_ne2000.c	1.0.29	2018/02/01
+ * Version:	@(#)net_ne2000.c	1.0.30	2018/02/09
  *
  * Authors:	Fred N. van Kempen, <decwiz@yahoo.com>
  *		Peter Grehan, <grehan@iprg.nokia.com>
@@ -2651,9 +2651,15 @@ static device_config_t ne1000_config[] =
 	{
 		"irq", "IRQ", CONFIG_SELECTION, "", 3,
 		{
+			{
+				"IRQ 2", 2
+			},
 			{
 				"IRQ 3", 3
 			},
+			{
+				"IRQ 4", 4
+			},
 			{
 				"IRQ 5", 5
 			},
@@ -2704,9 +2710,15 @@ static device_config_t ne2000_config[] =
 	{
 		"irq", "IRQ", CONFIG_SELECTION, "", 10,
 		{
+			{
+				"IRQ 2", 2
+			},
 			{
 				"IRQ 3", 3
 			},
+			{
+				"IRQ 4", 4
+			},
 			{
 				"IRQ 5", 5
 			},