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Diffstat (limited to 'src/mame/drivers/alg.cpp')
-rw-r--r--src/mame/drivers/alg.cpp77
1 files changed, 41 insertions, 36 deletions
diff --git a/src/mame/drivers/alg.cpp b/src/mame/drivers/alg.cpp
index 0676d6992cf..985b7e061c5 100644
--- a/src/mame/drivers/alg.cpp
+++ b/src/mame/drivers/alg.cpp
@@ -175,42 +175,47 @@ CUSTOM_INPUT_MEMBER(alg_state::lightgun_holster_r)
*
*************************************/
-ADDRESS_MAP_START(alg_state::overlay_512kb_map)
- ADDRESS_MAP_UNMAP_HIGH
- AM_RANGE(0x000000, 0x07ffff) AM_MIRROR(0x180000) AM_RAM AM_SHARE("chip_ram")
- AM_RANGE(0x200000, 0x27ffff) AM_ROM AM_REGION("kickstart", 0)
-ADDRESS_MAP_END
-
-ADDRESS_MAP_START(alg_state::a500_mem)
- ADDRESS_MAP_UNMAP_HIGH
- AM_RANGE(0x000000, 0x1fffff) AM_DEVICE("overlay", address_map_bank_device, amap16)
- AM_RANGE(0xa00000, 0xbfffff) AM_READWRITE(cia_r, cia_w)
- AM_RANGE(0xc00000, 0xd7ffff) AM_READWRITE(custom_chip_r, custom_chip_w)
- AM_RANGE(0xd80000, 0xddffff) AM_NOP
- AM_RANGE(0xde0000, 0xdeffff) AM_READWRITE(custom_chip_r, custom_chip_w)
- AM_RANGE(0xdf0000, 0xdfffff) AM_READWRITE(custom_chip_r, custom_chip_w)
- AM_RANGE(0xe00000, 0xe7ffff) AM_WRITENOP AM_READ(rom_mirror_r)
- AM_RANGE(0xe80000, 0xefffff) AM_NOP // autoconfig space (installed by devices)
- AM_RANGE(0xf80000, 0xffffff) AM_ROM AM_REGION("kickstart", 0)
-ADDRESS_MAP_END
-
-ADDRESS_MAP_START(alg_state::main_map_r1)
- AM_IMPORT_FROM(a500_mem)
- AM_RANGE(0xf00000, 0xf1ffff) AM_ROM AM_REGION("user2", 0) /* Custom ROM */
- AM_RANGE(0xf54000, 0xf55fff) AM_RAM AM_SHARE("nvram")
-ADDRESS_MAP_END
-
-ADDRESS_MAP_START(alg_state::main_map_r2)
- AM_IMPORT_FROM(a500_mem)
- AM_RANGE(0xf00000, 0xf3ffff) AM_ROM AM_REGION("user2", 0) /* Custom ROM */
- AM_RANGE(0xf7c000, 0xf7dfff) AM_RAM AM_SHARE("nvram")
-ADDRESS_MAP_END
-
-ADDRESS_MAP_START(alg_state::main_map_picmatic)
- AM_IMPORT_FROM(a500_mem)
- AM_RANGE(0xf00000, 0xf1ffff) AM_ROM AM_REGION("user2", 0) /* Custom ROM */
- AM_RANGE(0xf40000, 0xf41fff) AM_RAM AM_SHARE("nvram")
-ADDRESS_MAP_END
+void alg_state::overlay_512kb_map(address_map &map)
+{
+ map.unmap_value_high();
+ map(0x000000, 0x07ffff).mirror(0x180000).ram().share("chip_ram");
+ map(0x200000, 0x27ffff).rom().region("kickstart", 0);
+}
+
+void alg_state::a500_mem(address_map &map)
+{
+ map.unmap_value_high();
+ map(0x000000, 0x1fffff).m(m_overlay, FUNC(address_map_bank_device::amap16));
+ map(0xa00000, 0xbfffff).rw(this, FUNC(alg_state::cia_r), FUNC(alg_state::cia_w));
+ map(0xc00000, 0xd7ffff).rw(this, FUNC(alg_state::custom_chip_r), FUNC(alg_state::custom_chip_w));
+ map(0xd80000, 0xddffff).noprw();
+ map(0xde0000, 0xdeffff).rw(this, FUNC(alg_state::custom_chip_r), FUNC(alg_state::custom_chip_w));
+ map(0xdf0000, 0xdfffff).rw(this, FUNC(alg_state::custom_chip_r), FUNC(alg_state::custom_chip_w));
+ map(0xe00000, 0xe7ffff).nopw().r(this, FUNC(alg_state::rom_mirror_r));
+ map(0xe80000, 0xefffff).noprw(); // autoconfig space (installed by devices)
+ map(0xf80000, 0xffffff).rom().region("kickstart", 0);
+}
+
+void alg_state::main_map_r1(address_map &map)
+{
+ a500_mem(map);
+ map(0xf00000, 0xf1ffff).rom().region("user2", 0); /* Custom ROM */
+ map(0xf54000, 0xf55fff).ram().share("nvram");
+}
+
+void alg_state::main_map_r2(address_map &map)
+{
+ a500_mem(map);
+ map(0xf00000, 0xf3ffff).rom().region("user2", 0); /* Custom ROM */
+ map(0xf7c000, 0xf7dfff).ram().share("nvram");
+}
+
+void alg_state::main_map_picmatic(address_map &map)
+{
+ a500_mem(map);
+ map(0xf00000, 0xf1ffff).rom().region("user2", 0); /* Custom ROM */
+ map(0xf40000, 0xf41fff).ram().share("nvram");
+}