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Diffstat (limited to 'src/devices/machine/spg2xx.h')
-rw-r--r--src/devices/machine/spg2xx.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/src/devices/machine/spg2xx.h b/src/devices/machine/spg2xx.h
index 1220b4bfb3b..937fe1d4ead 100644
--- a/src/devices/machine/spg2xx.h
+++ b/src/devices/machine/spg2xx.h
@@ -387,8 +387,8 @@ protected:
DECLARE_WRITE16_MEMBER(video_w);
DECLARE_READ16_MEMBER(audio_r);
DECLARE_WRITE16_MEMBER(audio_w);
- DECLARE_READ16_MEMBER(io_r);
- DECLARE_WRITE16_MEMBER(io_w);
+ virtual DECLARE_READ16_MEMBER(io_r);
+ virtual DECLARE_WRITE16_MEMBER(io_w);
void check_irqs(const uint16_t changed);
inline void check_video_irq();
@@ -552,6 +552,8 @@ public:
}
spg28x_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+ virtual DECLARE_WRITE16_MEMBER(io_w) override;
};
DECLARE_DEVICE_TYPE(SPG24X, spg24x_device)