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Diffstat (limited to 'src/mame/drivers/shougi.cpp')
-rw-r--r--src/mame/drivers/shougi.cpp13
1 files changed, 1 insertions, 12 deletions
diff --git a/src/mame/drivers/shougi.cpp b/src/mame/drivers/shougi.cpp
index be853dd5849..cc7e04ad10a 100644
--- a/src/mame/drivers/shougi.cpp
+++ b/src/mame/drivers/shougi.cpp
@@ -96,7 +96,6 @@ public:
m_maincpu(*this, "maincpu"),
m_subcpu(*this, "sub"),
m_alpha_8201(*this, "alpha_8201"),
- m_mainlatch(*this, "mainlatch"),
m_videoram(*this, "videoram")
{ }
@@ -104,14 +103,12 @@ public:
required_device<cpu_device> m_maincpu;
required_device<cpu_device> m_subcpu;
required_device<alpha_8201_device> m_alpha_8201;
- required_device<ls259_device> m_mainlatch;
required_shared_ptr<uint8_t> m_videoram;
uint8_t m_nmi_enabled;
int m_r;
- DECLARE_WRITE8_MEMBER(control_w);
DECLARE_WRITE_LINE_MEMBER(nmi_enable_w);
DECLARE_READ8_MEMBER(semaphore_r);
@@ -230,14 +227,6 @@ uint32_t shougi_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap
// maincpu side
-WRITE8_MEMBER(shougi_state::control_w)
-{
- // 4800-480f connected to the 74LS259, A3 is data line
- // so 4800-4807 write 0, and 4808-480f write 1
- m_mainlatch->write_bit(offset & 7, BIT(offset, 3));
-}
-
-
WRITE_LINE_MEMBER(shougi_state::nmi_enable_w)
{
m_nmi_enabled = state;
@@ -254,7 +243,7 @@ WRITE_LINE_MEMBER(shougi_state::nmi_enable_w)
static ADDRESS_MAP_START( main_map, AS_PROGRAM, 8, shougi_state )
AM_RANGE(0x0000, 0x3fff) AM_ROM
AM_RANGE(0x4000, 0x43ff) AM_RAM /* 2114 x 2 (0x400 x 4bit each) */
- AM_RANGE(0x4800, 0x480f) AM_WRITE(control_w)
+ AM_RANGE(0x4800, 0x480f) AM_DEVWRITE("mainlatch", ls259_device, write_a3)
AM_RANGE(0x4800, 0x4800) AM_READ_PORT("DSW")
AM_RANGE(0x5000, 0x5000) AM_READ_PORT("P1")
AM_RANGE(0x5800, 0x5800) AM_READ_PORT("P2") AM_DEVWRITE("watchdog", watchdog_timer_device, reset_w) /* game won't boot if watchdog doesn't work */