mirror of
https://github.com/holub/mame
synced 2025-04-23 00:39:36 +03:00
Make DECO RM-C3 into a device and use for dec8 games
This commit is contained in:
Bryan McPhail
parent
455fc201af
commit
e92e9af132
@ -1629,6 +1629,8 @@ files {
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MAME_DIR .. "src/mame/machine/deco146.h",
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MAME_DIR .. "src/mame/video/decbac06.cpp",
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MAME_DIR .. "src/mame/video/decbac06.h",
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MAME_DIR .. "src/mame/video/decrmc3.cpp",
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MAME_DIR .. "src/mame/video/decrmc3.h",
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MAME_DIR .. "src/mame/video/deco16ic.cpp",
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MAME_DIR .. "src/mame/video/deco16ic.h",
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MAME_DIR .. "src/mame/video/decocomn.cpp",
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@ -2066,6 +2068,7 @@ files {
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MAME_DIR .. "src/mame/includes/ginganin.h",
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MAME_DIR .. "src/mame/video/ginganin.cpp",
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MAME_DIR .. "src/mame/drivers/homerun.cpp",
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MAME_DIR .. "src/mame/drivers/homerun.cpp",
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MAME_DIR .. "src/mame/includes/homerun.h",
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MAME_DIR .. "src/mame/video/homerun.cpp",
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MAME_DIR .. "src/mame/drivers/megasys1.cpp",
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@ -567,8 +567,8 @@ WRITE8_MEMBER(dec8_state::flip_screen_w){ flip_screen_set(data); }
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static ADDRESS_MAP_START( lastmisn_map, AS_PROGRAM, 8, dec8_state )
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AM_RANGE(0x0000, 0x0fff) AM_RAM AM_SHARE("share1")
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AM_RANGE(0x1000, 0x13ff) AM_RAM_DEVWRITE("palette", palette_device, write) AM_SHARE("palette")
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AM_RANGE(0x1400, 0x17ff) AM_RAM_DEVWRITE("palette", palette_device, write_ext) AM_SHARE("palette_ext")
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AM_RANGE(0x1000, 0x13ff) AM_RAM_DEVWRITE("palette", deco_rmc3_device, write) AM_SHARE("palette")
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AM_RANGE(0x1400, 0x17ff) AM_RAM_DEVWRITE("palette", deco_rmc3_device, write_ext) AM_SHARE("palette_ext")
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AM_RANGE(0x1800, 0x1800) AM_READ_PORT("IN0")
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AM_RANGE(0x1801, 0x1801) AM_READ_PORT("IN1")
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AM_RANGE(0x1802, 0x1802) AM_READ_PORT("IN2")
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@ -593,8 +593,8 @@ ADDRESS_MAP_END
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static ADDRESS_MAP_START( lastmisn_sub_map, AS_PROGRAM, 8, dec8_state )
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AM_RANGE(0x0000, 0x0fff) AM_RAM AM_SHARE("share1")
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AM_RANGE(0x1000, 0x13ff) AM_RAM_DEVWRITE("palette", palette_device, write) AM_SHARE("palette")
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AM_RANGE(0x1400, 0x17ff) AM_RAM_DEVWRITE("palette", palette_device, write_ext) AM_SHARE("palette_ext")
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AM_RANGE(0x1000, 0x13ff) AM_RAM_DEVWRITE("palette", deco_rmc3_device, write) AM_SHARE("palette")
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AM_RANGE(0x1400, 0x17ff) AM_RAM_DEVWRITE("palette", deco_rmc3_device, write_ext) AM_SHARE("palette_ext")
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AM_RANGE(0x1800, 0x1800) AM_READ_PORT("IN0")
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AM_RANGE(0x1801, 0x1801) AM_READ_PORT("IN1")
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AM_RANGE(0x1802, 0x1802) AM_READ_PORT("IN2")
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@ -613,8 +613,8 @@ ADDRESS_MAP_END
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static ADDRESS_MAP_START( shackled_map, AS_PROGRAM, 8, dec8_state )
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AM_RANGE(0x0000, 0x0fff) AM_RAM AM_SHARE("share1")
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AM_RANGE(0x1000, 0x13ff) AM_RAM_DEVWRITE("palette", palette_device, write) AM_SHARE("palette")
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AM_RANGE(0x1400, 0x17ff) AM_RAM_DEVWRITE("palette", palette_device, write_ext) AM_SHARE("palette_ext")
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AM_RANGE(0x1000, 0x13ff) AM_RAM_DEVWRITE("palette", deco_rmc3_device, write) AM_SHARE("palette")
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AM_RANGE(0x1400, 0x17ff) AM_RAM_DEVWRITE("palette", deco_rmc3_device, write_ext) AM_SHARE("palette_ext")
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AM_RANGE(0x1800, 0x1800) AM_READ_PORT("IN0")
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AM_RANGE(0x1801, 0x1801) AM_READ_PORT("IN1")
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AM_RANGE(0x1802, 0x1802) AM_READ_PORT("IN2")
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@ -637,8 +637,8 @@ ADDRESS_MAP_END
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static ADDRESS_MAP_START( shackled_sub_map, AS_PROGRAM, 8, dec8_state )
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AM_RANGE(0x0000, 0x0fff) AM_RAM AM_SHARE("share1")
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AM_RANGE(0x1000, 0x13ff) AM_RAM_DEVWRITE("palette", palette_device, write) AM_SHARE("palette")
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AM_RANGE(0x1400, 0x17ff) AM_RAM_DEVWRITE("palette", palette_device, write_ext) AM_SHARE("palette_ext")
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AM_RANGE(0x1000, 0x13ff) AM_RAM_DEVWRITE("palette", deco_rmc3_device, write) AM_SHARE("palette")
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AM_RANGE(0x1400, 0x17ff) AM_RAM_DEVWRITE("palette", deco_rmc3_device, write_ext) AM_SHARE("palette_ext")
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AM_RANGE(0x1800, 0x1800) AM_READ_PORT("IN0")
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AM_RANGE(0x1801, 0x1801) AM_READ_PORT("IN1")
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AM_RANGE(0x1802, 0x1802) AM_READ_PORT("IN2")
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@ -664,8 +664,8 @@ static ADDRESS_MAP_START( gondo_map, AS_PROGRAM, 8, dec8_state )
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AM_RANGE(0x0000, 0x17ff) AM_RAM
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AM_RANGE(0x1800, 0x1fff) AM_RAM_WRITE(dec8_videoram_w) AM_SHARE("videoram")
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AM_RANGE(0x2000, 0x27ff) AM_READWRITE(dec8_bg_data_r, dec8_bg_data_w) AM_SHARE("bg_data")
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AM_RANGE(0x2800, 0x2bff) AM_RAM_DEVWRITE("palette", palette_device, write) AM_SHARE("palette")
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AM_RANGE(0x2c00, 0x2fff) AM_RAM_DEVWRITE("palette", palette_device, write_ext) AM_SHARE("palette_ext")
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AM_RANGE(0x2800, 0x2bff) AM_RAM_DEVWRITE("palette", deco_rmc3_device, write) AM_SHARE("palette")
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AM_RANGE(0x2c00, 0x2fff) AM_RAM_DEVWRITE("palette", deco_rmc3_device, write_ext) AM_SHARE("palette_ext")
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AM_RANGE(0x3000, 0x37ff) AM_RAM AM_SHARE("spriteram") /* Sprites */
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AM_RANGE(0x3800, 0x3800) AM_READ_PORT("DSW0") /* Dip 1 */
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AM_RANGE(0x3801, 0x3801) AM_READ_PORT("DSW1") /* Dip 2 */
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@ -687,8 +687,8 @@ static ADDRESS_MAP_START( garyoret_map, AS_PROGRAM, 8, dec8_state )
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AM_RANGE(0x0000, 0x17ff) AM_RAM
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AM_RANGE(0x1800, 0x1fff) AM_RAM_WRITE(dec8_videoram_w) AM_SHARE("videoram")
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AM_RANGE(0x2000, 0x27ff) AM_READWRITE(dec8_bg_data_r, dec8_bg_data_w) AM_SHARE("bg_data")
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AM_RANGE(0x2800, 0x2bff) AM_RAM_DEVWRITE("palette", palette_device, write) AM_SHARE("palette")
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AM_RANGE(0x2c00, 0x2fff) AM_RAM_DEVWRITE("palette", palette_device, write_ext) AM_SHARE("palette_ext")
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AM_RANGE(0x2800, 0x2bff) AM_RAM_DEVWRITE("palette", deco_rmc3_device, write) AM_SHARE("palette")
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AM_RANGE(0x2c00, 0x2fff) AM_RAM_DEVWRITE("palette", deco_rmc3_device, write_ext) AM_SHARE("palette_ext")
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AM_RANGE(0x3000, 0x37ff) AM_RAM AM_SHARE("spriteram") /* Sprites */
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AM_RANGE(0x3800, 0x3800) AM_READ_PORT("DSW0") /* Dip 1 */
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AM_RANGE(0x3801, 0x3801) AM_READ_PORT("DSW1") /* Dip 2 */
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@ -731,8 +731,8 @@ ADDRESS_MAP_END
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static ADDRESS_MAP_START( csilver_map, AS_PROGRAM, 8, dec8_state )
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AM_RANGE(0x0000, 0x0fff) AM_RAM AM_SHARE("share1")
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AM_RANGE(0x1000, 0x13ff) AM_RAM_DEVWRITE("palette", palette_device, write) AM_SHARE("palette")
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AM_RANGE(0x1400, 0x17ff) AM_RAM_DEVWRITE("palette", palette_device, write_ext) AM_SHARE("palette_ext")
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AM_RANGE(0x1000, 0x13ff) AM_RAM_DEVWRITE("palette", deco_rmc3_device, write) AM_SHARE("palette")
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AM_RANGE(0x1400, 0x17ff) AM_RAM_DEVWRITE("palette", deco_rmc3_device, write_ext) AM_SHARE("palette_ext")
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AM_RANGE(0x1800, 0x1800) AM_READ_PORT("IN1")
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AM_RANGE(0x1801, 0x1801) AM_READ_PORT("IN0")
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AM_RANGE(0x1803, 0x1803) AM_READ_PORT("IN2")
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@ -756,8 +756,8 @@ ADDRESS_MAP_END
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static ADDRESS_MAP_START( csilver_sub_map, AS_PROGRAM, 8, dec8_state )
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AM_RANGE(0x0000, 0x0fff) AM_RAM AM_SHARE("share1")
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AM_RANGE(0x1000, 0x13ff) AM_RAM_DEVWRITE("palette", palette_device, write) AM_SHARE("palette")
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AM_RANGE(0x1400, 0x17ff) AM_RAM_DEVWRITE("palette", palette_device, write_ext) AM_SHARE("palette_ext")
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AM_RANGE(0x1000, 0x13ff) AM_RAM_DEVWRITE("palette", deco_rmc3_device, write) AM_SHARE("palette")
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AM_RANGE(0x1400, 0x17ff) AM_RAM_DEVWRITE("palette", deco_rmc3_device, write_ext) AM_SHARE("palette_ext")
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AM_RANGE(0x1803, 0x1803) AM_READ_PORT("IN2")
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AM_RANGE(0x1804, 0x1804) AM_READ_PORT("DSW1")
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AM_RANGE(0x1800, 0x1804) AM_WRITE(shackled_int_w)
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@ -777,7 +777,7 @@ static ADDRESS_MAP_START( oscar_map, AS_PROGRAM, 8, dec8_state )
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AM_RANGE(0x2000, 0x27ff) AM_RAM_WRITE(dec8_videoram_w) AM_SHARE("videoram")
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AM_RANGE(0x2800, 0x2fff) AM_DEVREADWRITE("tilegen1", deco_bac06_device, pf_data_8bit_r, pf_data_8bit_w)
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AM_RANGE(0x3000, 0x37ff) AM_RAM AM_SHARE("spriteram") /* Sprites */
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AM_RANGE(0x3800, 0x3bff) AM_RAM_DEVWRITE("palette", palette_device, write) AM_SHARE("palette")
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AM_RANGE(0x3800, 0x3bff) AM_RAM_DEVWRITE("palette", deco_rmc3_device, write) AM_SHARE("palette")
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AM_RANGE(0x3c00, 0x3c00) AM_READ_PORT("IN0")
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AM_RANGE(0x3c01, 0x3c01) AM_READ_PORT("IN1")
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AM_RANGE(0x3c02, 0x3c02) AM_READ_PORT("IN2") /* VBL & coins */
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@ -815,8 +815,8 @@ static ADDRESS_MAP_START( srdarwin_map, AS_PROGRAM, 8, dec8_state )
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AM_RANGE(0x1805, 0x1806) AM_WRITE(srdarwin_control_w) /* Scroll & Bank */
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AM_RANGE(0x2000, 0x2000) AM_READWRITE(i8751_h_r, dec8_sound_w) /* Sound */
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AM_RANGE(0x2001, 0x2001) AM_READWRITE(i8751_l_r, flip_screen_w) /* Flipscreen */
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AM_RANGE(0x2800, 0x288f) AM_DEVWRITE("palette", palette_device, write) AM_SHARE("palette")
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AM_RANGE(0x3000, 0x308f) AM_DEVWRITE("palette", palette_device, write_ext) AM_SHARE("palette_ext")
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AM_RANGE(0x2800, 0x288f) AM_DEVWRITE("palette", deco_rmc3_device, write) AM_SHARE("palette")
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AM_RANGE(0x3000, 0x308f) AM_DEVWRITE("palette", deco_rmc3_device, write_ext) AM_SHARE("palette_ext")
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AM_RANGE(0x3800, 0x3800) AM_READ_PORT("DSW0") /* Dip 1 */
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AM_RANGE(0x3801, 0x3801) AM_READ_PORT("IN0") /* Player 1 */
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AM_RANGE(0x3802, 0x3802) AM_READ_PORT("IN1") /* Player 2 (cocktail) + VBL */
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@ -832,7 +832,7 @@ static ADDRESS_MAP_START( cobra_map, AS_PROGRAM, 8, dec8_state )
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AM_RANGE(0x1800, 0x1fff) AM_RAM
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AM_RANGE(0x2000, 0x27ff) AM_RAM_WRITE(dec8_videoram_w) AM_SHARE("videoram")
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AM_RANGE(0x2800, 0x2fff) AM_RAM AM_SHARE("spriteram")
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AM_RANGE(0x3000, 0x31ff) AM_RAM_DEVWRITE("palette", palette_device, write) AM_SHARE("palette")
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AM_RANGE(0x3000, 0x31ff) AM_RAM_DEVWRITE("palette", deco_rmc3_device, write) AM_SHARE("palette")
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AM_RANGE(0x3200, 0x37ff) AM_WRITEONLY /* Unused */
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AM_RANGE(0x3800, 0x3800) AM_READ_PORT("IN0") /* Player 1 */
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AM_RANGE(0x3801, 0x3801) AM_READ_PORT("IN1") /* Player 2 */
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@ -2019,9 +2019,9 @@ static MACHINE_CONFIG_START( lastmisn )
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MCFG_SCREEN_PALETTE("palette")
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MCFG_GFXDECODE_ADD("gfxdecode", "palette", shackled)
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MCFG_PALETTE_ADD("palette", 1024)
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MCFG_PALETTE_FORMAT(xxxxBBBBGGGGRRRR_DECO)
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MCFG_DEVICE_ADD("palette", DECO_RMC3, 0) // xxxxBBBBGGGGRRRR with custom weighting
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MCFG_DECO_RMC3_SET_PALETTE_SIZE(1024)
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MCFG_VIDEO_START_OVERRIDE(dec8_state,lastmisn)
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/* sound hardware */
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@ -2073,9 +2073,9 @@ static MACHINE_CONFIG_START( shackled )
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MCFG_SCREEN_PALETTE("palette")
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MCFG_GFXDECODE_ADD("gfxdecode", "palette", shackled)
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MCFG_PALETTE_ADD("palette", 1024)
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MCFG_PALETTE_FORMAT(xxxxBBBBGGGGRRRR_DECO)
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MCFG_DEVICE_ADD("palette", DECO_RMC3, 0) // xxxxBBBBGGGGRRRR with custom weighting
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MCFG_DECO_RMC3_SET_PALETTE_SIZE(1024)
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MCFG_VIDEO_START_OVERRIDE(dec8_state,shackled)
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/* sound hardware */
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@ -2127,9 +2127,9 @@ static MACHINE_CONFIG_START( gondo )
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MCFG_SCREEN_PALETTE("palette")
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MCFG_GFXDECODE_ADD("gfxdecode", "palette", gondo)
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MCFG_PALETTE_ADD("palette", 1024)
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MCFG_PALETTE_FORMAT(xxxxBBBBGGGGRRRR_DECO)
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MCFG_DEVICE_ADD("palette", DECO_RMC3, 0) // xxxxBBBBGGGGRRRR with custom weighting
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MCFG_DECO_RMC3_SET_PALETTE_SIZE(1024)
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MCFG_VIDEO_START_OVERRIDE(dec8_state,gondo)
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/* sound hardware */
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@ -2181,9 +2181,9 @@ static MACHINE_CONFIG_START( garyoret )
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MCFG_SCREEN_PALETTE("palette")
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MCFG_GFXDECODE_ADD("gfxdecode", "palette", gondo)
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MCFG_PALETTE_ADD("palette", 1024)
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MCFG_PALETTE_FORMAT(xxxxBBBBGGGGRRRR_DECO)
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MCFG_DEVICE_ADD("palette", DECO_RMC3, 0) // xxxxBBBBGGGGRRRR with custom weighting
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MCFG_DECO_RMC3_SET_PALETTE_SIZE(1024)
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MCFG_VIDEO_START_OVERRIDE(dec8_state,garyoret)
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/* sound hardware */
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@ -2239,10 +2239,7 @@ static MACHINE_CONFIG_START( ghostb )
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MCFG_SCREEN_PALETTE("palette")
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MCFG_GFXDECODE_ADD("gfxdecode", "palette", ghostb)
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MCFG_PALETTE_ADD("palette", 1024)
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MCFG_PALETTE_FORMAT(xxxxBBBBGGGGRRRR_DECO)
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MCFG_PALETTE_INIT_OWNER(dec8_state,ghostb)
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MCFG_DECO_RMC3_ADD_PROMS("palette","proms",1024) // xxxxBBBBGGGGRRRR with custom weighting
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MCFG_VIDEO_START_OVERRIDE(dec8_state,ghostb)
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/* sound hardware */
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@ -2299,9 +2296,9 @@ static MACHINE_CONFIG_START( csilver )
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MCFG_SCREEN_PALETTE("palette")
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MCFG_GFXDECODE_ADD("gfxdecode", "palette", shackled)
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MCFG_PALETTE_ADD("palette", 1024)
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MCFG_PALETTE_FORMAT(xxxxBBBBGGGGRRRR_DECO)
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MCFG_DEVICE_ADD("palette", DECO_RMC3, 0) // xxxxBBBBGGGGRRRR with custom weighting
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MCFG_DECO_RMC3_SET_PALETTE_SIZE(1024)
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MCFG_VIDEO_START_OVERRIDE(dec8_state,lastmisn)
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/* sound hardware */
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@ -2362,9 +2359,9 @@ static MACHINE_CONFIG_START( oscar )
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MCFG_SCREEN_PALETTE("palette")
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MCFG_GFXDECODE_ADD("gfxdecode", "palette", oscar)
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MCFG_PALETTE_ADD("palette", 512)
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MCFG_PALETTE_FORMAT(xxxxBBBBGGGGRRRR_DECO)
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MCFG_DEVICE_ADD("palette", DECO_RMC3, 0) // xxxxBBBBGGGGRRRR with custom weighting
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MCFG_DECO_RMC3_SET_PALETTE_SIZE(1024)
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MCFG_VIDEO_START_OVERRIDE(dec8_state,oscar)
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/* sound hardware */
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@ -2408,9 +2405,9 @@ static MACHINE_CONFIG_START( srdarwin )
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MCFG_SCREEN_PALETTE("palette")
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MCFG_GFXDECODE_ADD("gfxdecode", "palette", srdarwin)
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MCFG_PALETTE_ADD("palette", 144)
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MCFG_PALETTE_FORMAT(xxxxBBBBGGGGRRRR_DECO)
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MCFG_DEVICE_ADD("palette", DECO_RMC3, 0) // xxxxBBBBGGGGRRRR with custom weighting
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MCFG_DECO_RMC3_SET_PALETTE_SIZE(144)
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MCFG_VIDEO_START_OVERRIDE(dec8_state,srdarwin)
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/* sound hardware */
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@ -2466,9 +2463,9 @@ static MACHINE_CONFIG_START( cobracom )
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MCFG_SCREEN_PALETTE("palette")
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MCFG_GFXDECODE_ADD("gfxdecode", "palette", cobracom)
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MCFG_PALETTE_ADD("palette", 256)
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MCFG_PALETTE_FORMAT(xxxxBBBBGGGGRRRR_DECO)
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MCFG_DEVICE_ADD("palette", DECO_RMC3, 0) // xxxxBBBBGGGGRRRR with custom weighting
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MCFG_DECO_RMC3_SET_PALETTE_SIZE(256)
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MCFG_VIDEO_START_OVERRIDE(dec8_state,cobracom)
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/* sound hardware */
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@ -6,6 +6,7 @@
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#include "video/decbac06.h"
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#include "video/deckarn.h"
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#include "video/decmxc06.h"
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#include "video/decrmc3.h"
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class dec8_state : public driver_device
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{
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@ -45,7 +46,7 @@ public:
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optional_device<deco_karnovsprites_device> m_spritegen_krn;
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optional_device<deco_mxc06_device> m_spritegen_mxc;
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required_device<gfxdecode_device> m_gfxdecode;
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required_device<palette_device> m_palette;
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required_device<deco_rmc3_device> m_palette;
|
||||
required_device<generic_latch_8_device> m_soundlatch;
|
||||
|
||||
/* memory pointers */
|
||||
@ -148,7 +149,6 @@ public:
|
||||
DECLARE_VIDEO_START(gondo);
|
||||
DECLARE_VIDEO_START(garyoret);
|
||||
DECLARE_VIDEO_START(ghostb);
|
||||
DECLARE_PALETTE_INIT(ghostb);
|
||||
DECLARE_VIDEO_START(oscar);
|
||||
DECLARE_VIDEO_START(srdarwin);
|
||||
DECLARE_VIDEO_START(cobracom);
|
||||
|
||||
@ -46,54 +46,6 @@ sprites.
|
||||
#include "emu.h"
|
||||
#include "includes/dec8.h"
|
||||
|
||||
/***************************************************************************
|
||||
|
||||
Convert the color PROMs into a more useable format.
|
||||
|
||||
Real Ghostbusters has two 1024x8 palette PROM, other games in this driver
|
||||
use palette RAM.
|
||||
|
||||
Real Ghostbusters, Cobra Command, Gondomania, Oscar at least are confirmed
|
||||
to use two custom resistor packs marked DECO RM-C3 to convert the digital
|
||||
palette for analog output.
|
||||
|
||||
Each pack contains two channels with resistor values of 220 ohms,
|
||||
470 ohms, 1 kohm, 2.2 kohm and 4.8 kohm, however the highest resistance is
|
||||
not used as these games are only 4 bits per channel.
|
||||
|
||||
This leads to weightings per bit of 0xe, 0x1f, 0x43, 0x8f.
|
||||
|
||||
***************************************************************************/
|
||||
|
||||
PALETTE_INIT_MEMBER(dec8_state,ghostb)
|
||||
{
|
||||
const uint8_t *color_prom = memregion("proms")->base();
|
||||
int i;
|
||||
|
||||
for (i = 0; i < palette.entries(); i++)
|
||||
{
|
||||
int bit0, bit1, bit2, bit3, r, g, b;
|
||||
|
||||
bit0 = (color_prom[i] >> 0) & 0x01;
|
||||
bit1 = (color_prom[i] >> 1) & 0x01;
|
||||
bit2 = (color_prom[i] >> 2) & 0x01;
|
||||
bit3 = (color_prom[i] >> 3) & 0x01;
|
||||
r = 0x0e * bit0 + 0x1f * bit1 + 0x43 * bit2 + 0x8f * bit3;
|
||||
bit0 = (color_prom[i] >> 4) & 0x01;
|
||||
bit1 = (color_prom[i] >> 5) & 0x01;
|
||||
bit2 = (color_prom[i] >> 6) & 0x01;
|
||||
bit3 = (color_prom[i] >> 7) & 0x01;
|
||||
g = 0x0e * bit0 + 0x1f * bit1 + 0x43 * bit2 + 0x8f * bit3;
|
||||
bit0 = (color_prom[i + palette.entries()] >> 0) & 0x01;
|
||||
bit1 = (color_prom[i + palette.entries()] >> 1) & 0x01;
|
||||
bit2 = (color_prom[i + palette.entries()] >> 2) & 0x01;
|
||||
bit3 = (color_prom[i + palette.entries()] >> 3) & 0x01;
|
||||
b = 0x0e * bit0 + 0x1f * bit1 + 0x43 * bit2 + 0x8f * bit3;
|
||||
|
||||
palette.set_pen_color(i, rgb_t(r, g, b));
|
||||
}
|
||||
}
|
||||
|
||||
WRITE8_MEMBER(dec8_state::dec8_bg_data_w)
|
||||
{
|
||||
m_bg_data[offset] = data;
|
||||
|
||||
253
src/mame/video/decrmc3.cpp
Normal file
253
src/mame/video/decrmc3.cpp
Normal file
@ -0,0 +1,253 @@
|
||||
// license:BSD-3-Clause
|
||||
// copyright-holders:Bryan McPhail
|
||||
/***************************************************************************
|
||||
|
||||
decrmc3.cpp
|
||||
|
||||
Data East custom palette device.
|
||||
|
||||
***************************************************************************/
|
||||
|
||||
#include "emu.h"
|
||||
#include "decrmc3.h"
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// DEVICE DEFINITIONS
|
||||
//**************************************************************************
|
||||
|
||||
DEFINE_DEVICE_TYPE(DECO_RMC3, deco_rmc3_device, "deco_rmc3", "DECO RM-C3 PALETTE")
|
||||
|
||||
deco_rmc3_device::deco_rmc3_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock)
|
||||
: device_t(mconfig, DECO_RMC3, tag, owner, clock),
|
||||
device_palette_interface(mconfig, *this),
|
||||
m_entries(0),
|
||||
m_indirect_entries(0),
|
||||
m_prom_region(*this, finder_base::DUMMY_TAG),
|
||||
m_init(deco_rmc3_palette_init_delegate())
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// INITIALIZATION AND CONFIGURATION
|
||||
//**************************************************************************
|
||||
|
||||
void deco_rmc3_device::static_set_init(device_t &device, deco_rmc3_palette_init_delegate init)
|
||||
{
|
||||
downcast<deco_rmc3_device &>(device).m_init = init;
|
||||
}
|
||||
|
||||
|
||||
void deco_rmc3_device::static_set_entries(device_t &device, u32 entries)
|
||||
{
|
||||
downcast<deco_rmc3_device &>(device).m_entries = entries;
|
||||
}
|
||||
|
||||
|
||||
void deco_rmc3_device::static_set_indirect_entries(device_t &device, u32 entries)
|
||||
{
|
||||
downcast<deco_rmc3_device &>(device).m_indirect_entries = entries;
|
||||
}
|
||||
|
||||
void deco_rmc3_device::static_set_prom_region(device_t &device, const char *region)
|
||||
{
|
||||
downcast<deco_rmc3_device &>(device).m_prom_region.set_tag(region);
|
||||
}
|
||||
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// GENERIC WRITE HANDLERS
|
||||
//**************************************************************************
|
||||
|
||||
//-------------------------------------------------
|
||||
// update_for_write - given a write of a given
|
||||
// length to a given byte offset, update all
|
||||
// potentially modified palette entries
|
||||
//-------------------------------------------------
|
||||
|
||||
inline void deco_rmc3_device::update_for_write(offs_t byte_offset, int bytes_modified, bool indirect)
|
||||
{
|
||||
assert((m_indirect_entries != 0) == indirect);
|
||||
|
||||
// determine how many entries were modified
|
||||
int bpe = m_paletteram.bytes_per_entry();
|
||||
assert(bpe != 0);
|
||||
int count = (bytes_modified + bpe - 1) / bpe;
|
||||
|
||||
// for each entry modified, fetch the palette data and set the pen color or indirect color
|
||||
offs_t base = byte_offset / bpe;
|
||||
for (int index = 0; index < count; index++)
|
||||
{
|
||||
if (indirect)
|
||||
set_indirect_color(base + index, deco_rgb_decoder(read_entry(base + index)));
|
||||
else
|
||||
set_pen_color(base + index, deco_rgb_decoder(read_entry(base + index)));
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// write - write a byte to the base paletteram
|
||||
//-------------------------------------------------
|
||||
|
||||
WRITE8_MEMBER(deco_rmc3_device::write)
|
||||
{
|
||||
m_paletteram.write8(offset, data);
|
||||
update_for_write(offset, 1);
|
||||
}
|
||||
|
||||
WRITE16_MEMBER(deco_rmc3_device::write)
|
||||
{
|
||||
m_paletteram.write16(offset, data, mem_mask);
|
||||
update_for_write(offset * 2, 2);
|
||||
}
|
||||
|
||||
WRITE32_MEMBER(deco_rmc3_device::write)
|
||||
{
|
||||
m_paletteram.write32(offset, data, mem_mask);
|
||||
update_for_write(offset * 4, 4);
|
||||
}
|
||||
|
||||
READ8_MEMBER(deco_rmc3_device::read)
|
||||
{
|
||||
return m_paletteram.read8(offset);
|
||||
}
|
||||
|
||||
READ16_MEMBER(deco_rmc3_device::read)
|
||||
{
|
||||
return m_paletteram.read16(offset);
|
||||
}
|
||||
|
||||
READ32_MEMBER(deco_rmc3_device::read)
|
||||
{
|
||||
return m_paletteram.read32(offset);
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// write_ext - write a byte to the extended
|
||||
// paletteram
|
||||
//-------------------------------------------------
|
||||
|
||||
WRITE8_MEMBER(deco_rmc3_device::write_ext)
|
||||
{
|
||||
m_paletteram_ext.write8(offset, data);
|
||||
update_for_write(offset, 1);
|
||||
}
|
||||
|
||||
|
||||
WRITE16_MEMBER(deco_rmc3_device::write_ext)
|
||||
{
|
||||
m_paletteram_ext.write16(offset, data, mem_mask);
|
||||
update_for_write(offset * 2, 2);
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// write_indirect - write a byte to the base
|
||||
// paletteram, updating indirect colors
|
||||
//-------------------------------------------------
|
||||
|
||||
WRITE8_MEMBER(deco_rmc3_device::write_indirect)
|
||||
{
|
||||
m_paletteram.write8(offset, data);
|
||||
update_for_write(offset, 1, true);
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// write_ext - write a byte to the extended
|
||||
// paletteram, updating indirect colors
|
||||
//-------------------------------------------------
|
||||
|
||||
WRITE8_MEMBER(deco_rmc3_device::write_indirect_ext)
|
||||
{
|
||||
m_paletteram_ext.write8(offset, data);
|
||||
update_for_write(offset, 1, true);
|
||||
}
|
||||
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// DEVICE MANAGEMENT
|
||||
//**************************************************************************
|
||||
|
||||
//-------------------------------------------------
|
||||
// device_start - start up the device
|
||||
//-------------------------------------------------
|
||||
|
||||
void deco_rmc3_device::device_start()
|
||||
{
|
||||
// bind the init function
|
||||
m_init.bind_relative_to(*owner());
|
||||
|
||||
// find the memory, if present
|
||||
const memory_share *share = memshare(tag());
|
||||
if (share != nullptr)
|
||||
{
|
||||
// find the extended (split) memory, if present
|
||||
std::string tag_ext = std::string(tag()).append("_ext");
|
||||
const memory_share *share_ext = memshare(tag_ext.c_str());
|
||||
|
||||
// determine bytes per entry and configure
|
||||
int bytes_per_entry = 2;
|
||||
if (share_ext == nullptr)
|
||||
m_paletteram.set(*share, bytes_per_entry);
|
||||
else
|
||||
{
|
||||
m_paletteram.set(*share, bytes_per_entry / 2);
|
||||
m_paletteram_ext.set(*share_ext, bytes_per_entry / 2);
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
|
||||
// call the initialization helper if present
|
||||
if (!m_init.isnull())
|
||||
m_init(*this);
|
||||
}
|
||||
|
||||
|
||||
|
||||
// This conversion mimics the specific weighting used by the Data East
|
||||
// custom resistor pack marked DECO RM-C3 to convert the digital
|
||||
// palette for analog output. It is used on games such as The Real
|
||||
// Ghostbusters, Gondomania, Cobra Command, Psychonics Oscar.
|
||||
//
|
||||
// Resistor values are 220 ohms (MSB), 470 ohms, 1 kohm, 2.2 kohm (LSB)
|
||||
|
||||
void deco_rmc3_device::palette_init_proms(deco_rmc3_device &palette)
|
||||
{
|
||||
if (!m_prom_region.found())
|
||||
throw emu_fatalerror("Unable to find color PROM region '%s'.", m_prom_region.finder_tag());
|
||||
|
||||
const u8 *colors = m_prom_region->base();
|
||||
|
||||
for (int i = 0; i < palette.entries(); i++)
|
||||
{
|
||||
u8 r = colors[i]&0xf;
|
||||
u8 g = (colors[i]>>4)&0xf;
|
||||
u8 b = colors[i + palette.entries()]&0xf;
|
||||
|
||||
r = 0x0e * BIT(r,0) + 0x1f * BIT(r,1) + 0x43 * BIT(r,2) + 0x8f * BIT(r,3);
|
||||
g = 0x0e * BIT(g,0) + 0x1f * BIT(g,1) + 0x43 * BIT(g,2) + 0x8f * BIT(g,3);
|
||||
b = 0x0e * BIT(b,0) + 0x1f * BIT(b,1) + 0x43 * BIT(b,2) + 0x8f * BIT(b,3);
|
||||
|
||||
palette.set_pen_color(i, rgb_t(r,g,b));
|
||||
}
|
||||
}
|
||||
|
||||
rgb_t deco_rmc3_device::deco_rgb_decoder(u32 raw)
|
||||
{
|
||||
u8 r = raw&0xf;
|
||||
u8 g = (raw>>4)&0xf;
|
||||
u8 b = (raw>>8)&0xf;
|
||||
|
||||
r = 0x0e * BIT(r,0) + 0x1f * BIT(r,1) + 0x43 * BIT(r,2) + 0x8f * BIT(r,3);
|
||||
g = 0x0e * BIT(g,0) + 0x1f * BIT(g,1) + 0x43 * BIT(g,2) + 0x8f * BIT(g,3);
|
||||
b = 0x0e * BIT(b,0) + 0x1f * BIT(b,1) + 0x43 * BIT(b,2) + 0x8f * BIT(b,3);
|
||||
|
||||
return rgb_t(r, g, b);
|
||||
}
|
||||
131
src/mame/video/decrmc3.h
Normal file
131
src/mame/video/decrmc3.h
Normal file
@ -0,0 +1,131 @@
|
||||
// license:BSD-3-Clause
|
||||
// copyright-holders:Bryan McPhail
|
||||
/***************************************************************************
|
||||
|
||||
decrmc3.h
|
||||
|
||||
Data East custom palette device.
|
||||
|
||||
****************************************************************************
|
||||
|
||||
Data East RM-C3 is a custom resistor pack used to convert a digital
|
||||
palette to an analog output. The conversion is non-linear with high bits
|
||||
weighted a little more than low bits compared to linear.
|
||||
|
||||
******************************************************************************/
|
||||
|
||||
#pragma once
|
||||
|
||||
#ifndef MAME_VIDEO_DECORMC3_H
|
||||
#define MAME_VIDEO_DECORMC3_H
|
||||
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// DEVICE CONFIGURATION MACROS
|
||||
//**************************************************************************
|
||||
|
||||
#define MCFG_DECO_RMC3_ADD(_tag, _entries) \
|
||||
MCFG_DEVICE_ADD(_tag, DECO_RMC3, 0) \
|
||||
MCFG_DECO_RMC3_SET_PALETTE_SIZE(_entries)
|
||||
|
||||
#define MCFG_DECO_RMC3_MODIFY MCFG_DEVICE_MODIFY
|
||||
|
||||
#define MCFG_DECO_RMC3_SET_PALETTE_SIZE(_entries) \
|
||||
deco_rmc3_device::static_set_entries(*device, _entries);
|
||||
|
||||
#define MCFG_DECO_RMC3_INDIRECT_ENTRIES(_entries) \
|
||||
deco_rmc3_device::static_set_indirect_entries(*device, _entries);
|
||||
|
||||
// other standard palettes
|
||||
#define MCFG_DECO_RMC3_ADD_PROMS(_tag, _region, _entries) \
|
||||
MCFG_DECO_RMC3_ADD(_tag, _entries) \
|
||||
deco_rmc3_device::static_set_prom_region(*device, "^" _region); \
|
||||
deco_rmc3_device::static_set_init(*device, deco_rmc3_palette_init_delegate(FUNC(deco_rmc3_device::palette_init_proms), downcast<deco_rmc3_device *>(device)));
|
||||
|
||||
//#define MCFG_DECO_RMC3_INIT_OWNER(_class, _method)
|
||||
// deco_rmc3_device::static_set_init(*device, deco_rmc3_palette_init_delegate(&_class::PALETTE_INIT_NAME(_method), #_class "::palette_init_" #_method, downcast<_class *>(owner)));
|
||||
|
||||
//**************************************************************************
|
||||
// TYPE DEFINITIONS
|
||||
//**************************************************************************
|
||||
|
||||
// device type definition
|
||||
DECLARE_DEVICE_TYPE(DECO_RMC3, deco_rmc3_device)
|
||||
|
||||
typedef device_delegate<void (deco_rmc3_device &)> deco_rmc3_palette_init_delegate;
|
||||
|
||||
class deco_rmc3_device : public device_t, public device_palette_interface
|
||||
{
|
||||
public:
|
||||
// construction/destruction
|
||||
deco_rmc3_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
|
||||
|
||||
// static configuration
|
||||
static void static_set_init(device_t &device, deco_rmc3_palette_init_delegate init);
|
||||
static void static_set_membits(device_t &device, int membits);
|
||||
static void static_set_endianness(device_t &device, endianness_t endianness);
|
||||
static void static_set_entries(device_t &device, u32 entries);
|
||||
static void static_set_indirect_entries(device_t &device, u32 entries);
|
||||
static void static_set_prom_region(device_t &device, const char *region);
|
||||
|
||||
// palette RAM accessors
|
||||
memory_array &basemem() { return m_paletteram; }
|
||||
memory_array &extmem() { return m_paletteram_ext; }
|
||||
|
||||
// raw entry reading
|
||||
u32 read_entry(pen_t pen) const
|
||||
{
|
||||
u32 data = m_paletteram.read(pen);
|
||||
if (m_paletteram_ext.base() != nullptr)
|
||||
data |= m_paletteram_ext.read(pen) << (8 * m_paletteram.bytes_per_entry());
|
||||
return data;
|
||||
}
|
||||
|
||||
// generic read/write handlers
|
||||
DECLARE_READ8_MEMBER(read);
|
||||
DECLARE_WRITE8_MEMBER(write);
|
||||
DECLARE_WRITE8_MEMBER(write_ext);
|
||||
DECLARE_WRITE8_MEMBER(write_indirect);
|
||||
DECLARE_WRITE8_MEMBER(write_indirect_ext);
|
||||
DECLARE_READ16_MEMBER(read);
|
||||
DECLARE_WRITE16_MEMBER(write);
|
||||
DECLARE_WRITE16_MEMBER(write_ext);
|
||||
DECLARE_READ32_MEMBER(read);
|
||||
DECLARE_WRITE32_MEMBER(write);
|
||||
|
||||
void palette_init_proms(deco_rmc3_device &palette);
|
||||
|
||||
// helper to update palette when data changed
|
||||
void update() { if (!m_init.isnull()) m_init(*this); }
|
||||
|
||||
protected:
|
||||
// device-level overrides
|
||||
virtual void device_start() override;
|
||||
|
||||
// device_palette_interface overrides
|
||||
virtual u32 palette_entries() const override { return m_entries; }
|
||||
virtual u32 palette_indirect_entries() const override { return m_indirect_entries; }
|
||||
|
||||
private:
|
||||
void update_for_write(offs_t byte_offset, int bytes_modified, bool indirect = false);
|
||||
rgb_t deco_rgb_decoder(u32 raw);
|
||||
|
||||
// configuration state
|
||||
u32 m_entries; // number of entries in the palette
|
||||
u32 m_indirect_entries; // number of indirect colors in the palette
|
||||
// bool m_enable_shadows; // are shadows enabled?
|
||||
// bool m_enable_hilights; // are hilights enabled?
|
||||
// int m_membits; // width of palette RAM, if different from native
|
||||
// bool m_membits_supplied; // true if membits forced in static config
|
||||
// endianness_t m_endianness; // endianness of palette RAM, if different from native
|
||||
// bool m_endianness_supplied; // true if endianness forced in static config
|
||||
optional_memory_region m_prom_region; // region where the color PROMs are
|
||||
deco_rmc3_palette_init_delegate m_init;
|
||||
|
||||
// palette RAM
|
||||
memory_array m_paletteram; // base memory
|
||||
memory_array m_paletteram_ext; // extended memory
|
||||
};
|
||||
|
||||
#endif // MAME_VIDEO_DECORMC3_H
|
||||
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Block a user