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-rw-r--r--src/mame/wyse/wy30p.cpp2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mame/wyse/wy30p.cpp b/src/mame/wyse/wy30p.cpp
index 50c2a4e2617..b02a6e9d3ae 100644
--- a/src/mame/wyse/wy30p.cpp
+++ b/src/mame/wyse/wy30p.cpp
@@ -114,7 +114,7 @@ void wy30p_state::wy30p(machine_config &config)
{
i8031_device &maincpu(I8031(config, "maincpu", 7.3728_MHz_XTAL));
maincpu.set_addrmap(AS_PROGRAM, &wy30p_state::prog_map);
- maincpu.set_addrmap(AS_IO, &wy30p_state::ext_map);
+ maincpu.set_addrmap(AS_DATA, &wy30p_state::ext_map);
maincpu.port_in_cb<1>().set(FUNC(wy30p_state::p1_r));
maincpu.port_in_cb<3>().set(FUNC(wy30p_state::p3_r));
maincpu.port_out_cb<3>().set(m_eeprom, FUNC(eeprom_serial_er5911_device::cs_write)).bit(3);