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Diffstat (limited to 'src/devices/machine/fga002.cpp')
-rw-r--r--src/devices/machine/fga002.cpp6
1 files changed, 3 insertions, 3 deletions
diff --git a/src/devices/machine/fga002.cpp b/src/devices/machine/fga002.cpp
index 50ae32bfe0e..d9708fb37fc 100644
--- a/src/devices/machine/fga002.cpp
+++ b/src/devices/machine/fga002.cpp
@@ -253,9 +253,9 @@ void fga002_device::trigger_interrupt(uint8_t data)
m_out_int_cb(ASSERT_LINE);
}
-IRQ_CALLBACK_MEMBER(fga002_device::iack)
+u16 fga002_device::iack()
{
- int vec = M68K_INT_ACK_AUTOVECTOR;
+ int vec = 0x18; // Spurious interrupt
int vec_found = 0;
int level;
@@ -295,7 +295,7 @@ IRQ_CALLBACK_MEMBER(fga002_device::iack)
default: break; /* Since we need the vector for the switch statement the default job is already done */
}
LOGVEC("dev:%02x ", vec);
- if (vec == INT_ACK_AUTOVECTOR) vec = INT_EMPTY;
+ if (vec == 0x18) vec = INT_EMPTY;
LOGVEC("avec:%02x ", vec);
// Add vector page bits and return vector