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-rw-r--r--src/mame/machine/interpro_srarb.cpp3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/mame/machine/interpro_srarb.cpp b/src/mame/machine/interpro_srarb.cpp
index a389a272317..d3074ea2847 100644
--- a/src/mame/machine/interpro_srarb.cpp
+++ b/src/mame/machine/interpro_srarb.cpp
@@ -25,6 +25,9 @@ DEVICE_ADDRESS_MAP_START(map, 32, interpro_srarb_device)
AM_RANGE(0x14, 0x17) AM_READWRITE(errdomhi_r, errdomhi_w)
AM_RANGE(0x18, 0x1b) AM_READWRITE(tmctrl_r, tmctrl_w)
+ AM_RANGE(0x1c, 0x1f) AM_READWRITE8(unknown0_r, unknown0_w, 0x0000ff00) // boot code writes 0x10
+ AM_RANGE(0x20, 0x23) AM_READWRITE8(unknown1_r, unknown1_w, 0x0000ff00) // boot code writes 0x07
+
AM_RANGE(0x24, 0x27) AM_READWRITE(tmsrnem_r, tmsrnem_w)
AM_RANGE(0x28, 0x2b) AM_READWRITE(tmsrhog_r, tmsrhog_w)
AM_RANGE(0x2c, 0x2f) AM_READWRITE(tmscale_r, tmscale_w)