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Diffstat (limited to 'src/mame/drivers/xyonix.cpp')
-rw-r--r--src/mame/drivers/xyonix.cpp32
1 files changed, 17 insertions, 15 deletions
diff --git a/src/mame/drivers/xyonix.cpp b/src/mame/drivers/xyonix.cpp
index a22ac8a1297..5da65c3d129 100644
--- a/src/mame/drivers/xyonix.cpp
+++ b/src/mame/drivers/xyonix.cpp
@@ -143,21 +143,23 @@ WRITE8_MEMBER(xyonix_state::io_w)
/* Mem / Port Maps ***********************************************************/
-ADDRESS_MAP_START(xyonix_state::main_map)
- AM_RANGE(0x0000, 0xbfff) AM_ROM
- AM_RANGE(0xc000, 0xdfff) AM_RAM
- AM_RANGE(0xe000, 0xffff) AM_RAM_WRITE(vidram_w) AM_SHARE("vidram")
-ADDRESS_MAP_END
-
-ADDRESS_MAP_START(xyonix_state::port_map)
- ADDRESS_MAP_GLOBAL_MASK(0xff)
- AM_RANGE(0x20, 0x20) AM_READNOP AM_DEVWRITE("sn1", sn76496_device, write) /* SN76496 ready signal */
- AM_RANGE(0x21, 0x21) AM_READNOP AM_DEVWRITE("sn2", sn76496_device, write)
- AM_RANGE(0x40, 0x40) AM_WRITENOP /* NMI ack? */
- AM_RANGE(0x50, 0x50) AM_WRITE(irqack_w)
- AM_RANGE(0x60, 0x61) AM_WRITENOP /* mc6845 */
- AM_RANGE(0xe0, 0xe0) AM_READWRITE(io_r, io_w)
-ADDRESS_MAP_END
+void xyonix_state::main_map(address_map &map)
+{
+ map(0x0000, 0xbfff).rom();
+ map(0xc000, 0xdfff).ram();
+ map(0xe000, 0xffff).ram().w(this, FUNC(xyonix_state::vidram_w)).share("vidram");
+}
+
+void xyonix_state::port_map(address_map &map)
+{
+ map.global_mask(0xff);
+ map(0x20, 0x20).nopr().w("sn1", FUNC(sn76496_device::write)); /* SN76496 ready signal */
+ map(0x21, 0x21).nopr().w("sn2", FUNC(sn76496_device::write));
+ map(0x40, 0x40).nopw(); /* NMI ack? */
+ map(0x50, 0x50).w(this, FUNC(xyonix_state::irqack_w));
+ map(0x60, 0x61).nopw(); /* mc6845 */
+ map(0xe0, 0xe0).rw(this, FUNC(xyonix_state::io_r), FUNC(xyonix_state::io_w));
+}
/* Inputs Ports **************************************************************/