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Merge pull request #434 from shattered/_aa9464e

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ec1841: fix crash and make debug messages a bit more intuitive
This commit is contained in:
Scott Stone 2015-10-26 19:30:52 -04:00
commit fa39767c9c
1 changed files with 11 additions and 11 deletions
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22
src/mame/drivers/ec184x.c
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@ -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)