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-rw-r--r--src/emu/machine/pci.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/emu/machine/pci.c b/src/emu/machine/pci.c
index 4faf56b79ff..1e823dc319f 100644
--- a/src/emu/machine/pci.c
+++ b/src/emu/machine/pci.c
@@ -17,6 +17,7 @@ DEVICE_ADDRESS_MAP_START(config_map, 32, pci_device)
AM_RANGE(0x2c, 0x2f) AM_READ16 (subvendor_r, 0x0000ffff)
AM_RANGE(0x2c, 0x2f) AM_READ16 (subsystem_r, 0xffff0000)
+ AM_RANGE(0x2c, 0x2f) AM_WRITENOP
AM_RANGE(0x34, 0x37) AM_READ8 (capptr_r, 0x000000ff)
ADDRESS_MAP_END