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citycon: Don't lose the sprites; add some RAM mirroring (nw)

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This commit is contained in:
AJR 2018-01-31 21:03:22 -05:00
parent c78ae13b20
commit c85a07bb31
1 changed files with 2 additions and 3 deletions
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5
src/mame/drivers/citycon.cpp
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@ -35,9 +35,8 @@ READ8_MEMBER(citycon_state::citycon_irq_ack_r)
static ADDRESS_MAP_START( citycon_map, AS_PROGRAM, 8, citycon_state )
AM_RANGE(0x0000, 0x0fff) AM_RAM
AM_RANGE(0x1000, 0x1fff) AM_RAM_WRITE(citycon_videoram_w) AM_SHARE("videoram")
AM_RANGE(0x2000, 0x20ff) AM_RAM_WRITE(citycon_linecolor_w) AM_SHARE("linecolor")
AM_RANGE(0x2800, 0x28ff) AM_RAM AM_SHARE("spriteram")
AM_RANGE(0x2800, 0x2fff) AM_NOP //0x2900-0x2fff cleared at post but unused
AM_RANGE(0x2000, 0x20ff) AM_RAM_WRITE(citycon_linecolor_w) AM_SHARE("linecolor") AM_MIRROR(0x0700)
AM_RANGE(0x2800, 0x28ff) AM_RAM AM_SHARE("spriteram") AM_MIRROR(0x0700) //0x2900-0x2fff cleared at post but unused
AM_RANGE(0x3000, 0x3000) AM_READ(citycon_in_r) AM_WRITE(citycon_background_w) /* player 1 & 2 inputs multiplexed */
AM_RANGE(0x3001, 0x3001) AM_READ_PORT("DSW1") AM_DEVWRITE("soundlatch", generic_latch_8_device, write)
AM_RANGE(0x3002, 0x3002) AM_READ_PORT("DSW2") AM_DEVWRITE("soundlatch2", generic_latch_8_device, write)