The Lucky Star LS-486E and Rise R418 are now marked as having the PS/2 keyboard controller IRQ latch (new machine bus flag!) without actually having the PS/2 ports.

src/include/86box/machine.h

@@ -30,14 +30,16 @@
 #define MACHINE_BUS_CARTRIDGE 0x00000004 /* sys has two cartridge bays */
 #define MACHINE_BUS_ISA16     0x00000008 /* sys has ISA16 bus - PC/AT architecture */
 #define MACHINE_BUS_CBUS      0x00000010 /* sys has C-BUS bus */
-#define MACHINE_BUS_PS2       0x00000020 /* system has PS/2 keyboard and mouse ports */
-#define MACHINE_BUS_EISA      0x00000040 /* sys has EISA bus */
-#define MACHINE_BUS_VLB       0x00000080 /* sys has VL bus */
-#define MACHINE_BUS_MCA       0x00000100 /* sys has MCA bus */
-#define MACHINE_BUS_PCI       0x00000200 /* sys has PCI bus */
-#define MACHINE_BUS_PCMCIA    0x00000400 /* sys has PCMCIA bus */
-#define MACHINE_BUS_AGP       0x00000800 /* sys has AGP bus */
-#define MACHINE_BUS_AC97      0x00001000 /* sys has AC97 bus (ACR/AMR/CNR slot) */
+#define MACHINE_BUS_PS2_LATCH 0x00000020 /* system has PS/2 keyboard controller IRQ latch */
+#define MACHINE_BUS_PS2_PORTS 0x00000040 /* system has PS/2 keyboard and mouse ports */
+#define MACHINE_BUS_PS2       (MACHIN_BUS_PS2_LATCH | MACHINE_BUS_PS2_PORTS)
+#define MACHINE_BUS_EISA      0x00000080 /* sys has EISA bus */
+#define MACHINE_BUS_VLB       0x00000100 /* sys has VL bus */
+#define MACHINE_BUS_MCA       0x00000200 /* sys has MCA bus */
+#define MACHINE_BUS_PCI       0x00000400 /* sys has PCI bus */
+#define MACHINE_BUS_PCMCIA    0x00000800 /* sys has PCMCIA bus */
+#define MACHINE_BUS_AGP       0x00001000 /* sys has AGP bus */
+#define MACHINE_BUS_AC97      0x00002000 /* sys has AC97 bus (ACR/AMR/CNR slot) */
 /* Aliases. */
 #define MACHINE_CASSETTE  (MACHINE_BUS_CASSETTE)  /* sys has cassette port */
 #define MACHINE_CARTRIDGE (MACHINE_BUS_CARTRIDGE) /* sys has two cartridge bays */