diff options
author | Sergey Svishchev <shattered@users.sourceforge.net> | 2015-10-27 00:16:03 +0300 |
---|---|---|
committer | Sergey Svishchev <shattered@users.sourceforge.net> | 2015-10-27 00:19:33 +0300 |
commit | 25b6b1517facd3ac5a563990d66e5c4674474822 (patch) | |
tree | c4390d235754378c0efe0e649b55c082c5f3191b | |
parent | e7f2974003efdfe89497c90af6f3f32b04f4618f (diff) |
ec1841: fix crash and make debug messages a bit more intuitive
-rw-r--r-- | src/mame/drivers/ec184x.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/src/mame/drivers/ec184x.c b/src/mame/drivers/ec184x.c index 28a1eee5d0f..c6ddebef72f 100644 --- a/src/mame/drivers/ec184x.c +++ b/src/mame/drivers/ec184x.c @@ -18,7 +18,7 @@ #include "cpu/i86/i86.h" #include "machine/ram.h" -#define EC1841_MEMBOARD_SIZE 512*1024 +#define EC1841_MEMBOARD_SIZE (512*1024) #define VERBOSE_DBG 1 /* general debug messages */ @@ -43,7 +43,7 @@ public: required_device<cpu_device> m_maincpu; - DECLARE_MACHINE_RESET(ec184x); + DECLARE_MACHINE_RESET(ec1841); DECLARE_DRIVER_INIT(ec1841); struct { @@ -79,11 +79,11 @@ READ8_MEMBER(ec184x_state::memboard_r) UINT8 data; data = offset % 4; - if (data > m_memory.boards) + if (data >= m_memory.boards) data = 0xff; else data = m_memory.enable[data]; - DBG_LOG(1,"ec1841_memboard",("R (%d of %d) == %02X\n", offset, m_memory.boards, data )); + DBG_LOG(1,"ec1841_memboard",("R (%d of %d) == %02X\n", offset+1, m_memory.boards, data )); return data; } @@ -96,9 +96,9 @@ WRITE8_MEMBER(ec184x_state::memboard_w) current = m_memory.enable[offset]; - DBG_LOG(1,"ec1841_memboard",("W (%d of %d) <- %02X (%02X)\n", offset, m_memory.boards, data, current)); + DBG_LOG(1,"ec1841_memboard",("W (%d of %d) <- %02X (%02X)\n", offset+1, m_memory.boards, data, current)); - if (offset > m_memory.boards) { + if (offset >= m_memory.boards) { return; } @@ -140,9 +140,9 @@ DRIVER_INIT_MEMBER( ec184x_state, ec1841 ) address_space &program = m_maincpu->space(AS_PROGRAM); ram_device *m_ram = machine().device<ram_device>(RAM_TAG); - m_memory.boards = m_ram->size()/EC1841_MEMBOARD_SIZE - 1; - if (m_memory.boards > 3) - m_memory.boards = 3; + m_memory.boards = m_ram->size()/EC1841_MEMBOARD_SIZE; + if (m_memory.boards > 4) + m_memory.boards = 4; // 640K configuration is special -- 512K board mapped at 0 + 128K board mapped at 512K // XXX verify this was actually the case @@ -157,7 +157,7 @@ DRIVER_INIT_MEMBER( ec184x_state, ec1841 ) membank( "bank20" )->set_base( m_ram->pointer() ); } -MACHINE_RESET_MEMBER( ec184x_state, ec184x ) +MACHINE_RESET_MEMBER( ec184x_state, ec1841 ) { memset(m_memory.enable, 0, sizeof(m_memory.enable)); // mark 1st board enabled @@ -255,7 +255,7 @@ static MACHINE_CONFIG_START( ec1841, ec184x_state ) MCFG_CPU_IO_MAP(ec1841_io) MCFG_CPU_IRQ_ACKNOWLEDGE_DEVICE("mb:pic8259", pic8259_device, inta_cb) - MCFG_MACHINE_RESET_OVERRIDE(ec184x_state, ec184x) + MCFG_MACHINE_RESET_OVERRIDE(ec184x_state, ec1841) MCFG_EC1841_MOTHERBOARD_ADD("mb", "maincpu") MCFG_DEVICE_INPUT_DEFAULTS(ec1841) |