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Diffstat (limited to 'src/mame/drivers/metro.c')
-rw-r--r--src/mame/drivers/metro.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/src/mame/drivers/metro.c b/src/mame/drivers/metro.c
index e709c3ae435..44e45fc88d3 100644
--- a/src/mame/drivers/metro.c
+++ b/src/mame/drivers/metro.c
@@ -517,7 +517,7 @@ static void metro_sound_irq_handler(int state)
cpunum_set_input_line(1, UPD7810_INTF2, state ? ASSERT_LINE : CLEAR_LINE);
}
-static struct YM2151interface ym2151_interface =
+static const struct YM2151interface ym2151_interface =
{
metro_sound_irq_handler /* irq handler */
};
@@ -555,7 +555,7 @@ static WRITE16_HANDLER( ymf278b_w )
}
-static struct YMF278B_interface ymf278b_interface =
+static const struct YMF278B_interface ymf278b_interface =
{
REGION_SOUND1,
ymf278b_interrupt
@@ -1942,7 +1942,7 @@ static void blzntrnd_irqhandler(int irq)
cpunum_set_input_line(1, 0, irq ? ASSERT_LINE : CLEAR_LINE);
}
-static struct YM2610interface blzntrnd_ym2610_interface =
+static const struct YM2610interface blzntrnd_ym2610_interface =
{
blzntrnd_irqhandler,
REGION_SOUND1,
@@ -3679,7 +3679,7 @@ GFXDECODE_END
***************************************************************************/
-static UPD7810_CONFIG metro_cpu_config =
+static const UPD7810_CONFIG metro_cpu_config =
{
TYPE_7810,
metro_io_callback