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-rw-r--r--src/mame/machine/concept.cpp4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/mame/machine/concept.cpp b/src/mame/machine/concept.cpp
index 4be4dbc15f9..83de6b7e48b 100644
--- a/src/mame/machine/concept.cpp
+++ b/src/mame/machine/concept.cpp
@@ -169,7 +169,7 @@ WRITE_LINE_MEMBER(concept_state::via_irq_func)
concept_set_interrupt(TIMINT_level, state);
}
-READ8_MEMBER(concept_state::io_r)
+uint8_t concept_state::io_r(offs_t offset)
{
switch ((offset >> 8) & 7)
{
@@ -277,7 +277,7 @@ READ8_MEMBER(concept_state::io_r)
return 0;
}
-WRITE8_MEMBER(concept_state::io_w)
+void concept_state::io_w(offs_t offset, uint8_t data)
{
switch ((offset >> 8) & 7)
{