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(MESS) dmv: fixed memory module bankswitch in DOS. (nw)

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This commit is contained in:
Sandro Ronco 2014-08-20 17:59:30 +00:00
parent 9da7b7a28d
commit e452536274
1 changed files with 28 additions and 7 deletions
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35
src/mess/drivers/dmv.c
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@ -108,8 +108,13 @@ public:
DECLARE_WRITE8_MEMBER(rambank_w); DECLARE_WRITE8_MEMBER(rambank_w);
DECLARE_READ8_MEMBER(program_r); DECLARE_READ8_MEMBER(program_r);
DECLARE_WRITE8_MEMBER(program_w); DECLARE_WRITE8_MEMBER(program_w);
DECLARE_READ8_MEMBER(exp_program_r);
DECLARE_WRITE8_MEMBER(exp_program_w);
DECLARE_FLOPPY_FORMATS( floppy_formats ); DECLARE_FLOPPY_FORMATS( floppy_formats );
UINT8 program_read(address_space &space, int cas, offs_t offset);
void program_write(address_space &space, int cas, offs_t offset, UINT8 data);
void ifsel_r(address_space &space, int ifsel, offs_t offset, UINT8 &data); void ifsel_r(address_space &space, int ifsel, offs_t offset, UINT8 &data);
void ifsel_w(address_space &space, int ifsel, offs_t offset, UINT8 data); void ifsel_w(address_space &space, int ifsel, offs_t offset, UINT8 data);
DECLARE_READ8_MEMBER(ifsel0_r) { UINT8 data = 0xff; ifsel_r(space, 0, offset, data); return data; } DECLARE_READ8_MEMBER(ifsel0_r) { UINT8 data = 0xff; ifsel_r(space, 0, offset, data); return data; }
@ -323,7 +328,27 @@ void dmv_state::ifsel_w(address_space &space, int ifsel, offs_t offset, UINT8 da
slots[i]->io_write(space, ifsel, offset, data); slots[i]->io_write(space, ifsel, offset, data);
} }
WRITE8_MEMBER(dmv_state::exp_program_w)
{
program_write(space, (offset >> 16) & 0x07, offset, data);
}
READ8_MEMBER(dmv_state::exp_program_r)
{
return program_read(space, (offset >> 16) & 0x07, offset);
}
WRITE8_MEMBER(dmv_state::program_w) WRITE8_MEMBER(dmv_state::program_w)
{
program_write(space, m_ram_bank, offset, data);
}
READ8_MEMBER(dmv_state::program_r)
{
return program_read(space, m_ram_bank, offset);
}
void dmv_state::program_write(address_space &space, int cas, offs_t offset, UINT8 data)
{ {
bool tramd = false; bool tramd = false;
dmvcart_slot_device *slots[] = { m_slot2, m_slot2a, m_slot3, m_slot4, m_slot5, m_slot6, m_slot7, m_slot7a }; dmvcart_slot_device *slots[] = { m_slot2, m_slot2a, m_slot3, m_slot4, m_slot5, m_slot6, m_slot7, m_slot7a };
@ -332,8 +357,6 @@ WRITE8_MEMBER(dmv_state::program_w)
if (!tramd) if (!tramd)
{ {
int cas = (m_switch16 ? offset >> 16 : m_ram_bank) & 0x07;
if (cas == 0) if (cas == 0)
m_ram->base()[offset & 0xffff] = data; m_ram->base()[offset & 0xffff] = data;
else else
@ -341,7 +364,7 @@ WRITE8_MEMBER(dmv_state::program_w)
} }
} }
READ8_MEMBER(dmv_state::program_r) UINT8 dmv_state::program_read(address_space &space, int cas, offs_t offset)
{ {
UINT8 data = 0xff; UINT8 data = 0xff;
if (m_ramoutdis && offset < 0x2000) if (m_ramoutdis && offset < 0x2000)
@ -357,8 +380,6 @@ READ8_MEMBER(dmv_state::program_r)
if (!tramd) if (!tramd)
{ {
int cas = (m_switch16 ? offset >> 16 : m_ram_bank) & 0x07;
if (cas == 0) if (cas == 0)
data = m_ram->base()[offset & 0xffff]; data = m_ram->base()[offset & 0xffff];
else else
@ -645,10 +666,10 @@ static MACHINE_CONFIG_START( dmv, dmv_state )
MCFG_DEVICE_ADD("slot7", DMVCART_SLOT, 0) MCFG_DEVICE_ADD("slot7", DMVCART_SLOT, 0)
MCFG_DEVICE_SLOT_INTERFACE(dmv_slot7, NULL, false) MCFG_DEVICE_SLOT_INTERFACE(dmv_slot7, NULL, false)
MCFG_DMVCART_SLOT_PROGRAM_READWRITE_CB(READ8(dmv_state, program_r), WRITE8(dmv_state, program_w)) MCFG_DMVCART_SLOT_PROGRAM_READWRITE_CB(READ8(dmv_state, exp_program_r), WRITE8(dmv_state, exp_program_w))
MCFG_DEVICE_ADD("slot7a", DMVCART_SLOT, 0) MCFG_DEVICE_ADD("slot7a", DMVCART_SLOT, 0)
MCFG_DEVICE_SLOT_INTERFACE(dmv_slot7a, "k230", false) MCFG_DEVICE_SLOT_INTERFACE(dmv_slot7a, "k230", false)
MCFG_DMVCART_SLOT_PROGRAM_READWRITE_CB(READ8(dmv_state, program_r), WRITE8(dmv_state, program_w)) MCFG_DMVCART_SLOT_PROGRAM_READWRITE_CB(READ8(dmv_state, exp_program_r), WRITE8(dmv_state, exp_program_w))
MACHINE_CONFIG_END MACHINE_CONFIG_END