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hunter2: converted to use bankdev

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This commit is contained in:
mahlemiut 2014-03-26 05:52:31 +00:00
parent 233b795c21
commit 86d73c7d17
1 changed files with 45 additions and 35 deletions
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80
src/mess/drivers/hunter2.c
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@ -33,6 +33,7 @@
#include "bus/rs232/rs232.h"
#include "bus/rs232/null_modem.h"
#include "machine/nvram.h"
#include "machine/bankdev.h"
class hunter2_state : public driver_device
{
@ -45,6 +46,9 @@ public:
, m_rom(*this, "roms")
, m_ram(*this, "rams")
, m_nvram(*this, "nvram")
, m_bank1(*this, "bank1")
, m_bank2(*this, "bank2")
, m_bank3(*this, "bank3")
{ }
DECLARE_READ8_MEMBER(port00_r);
@ -76,13 +80,22 @@ private:
required_memory_region m_rom;
required_memory_region m_ram;
required_device<nvram_device> m_nvram;
required_device<address_map_bank_device> m_bank1;
required_device<address_map_bank_device> m_bank2;
required_device<address_map_bank_device> m_bank3;
};
static ADDRESS_MAP_START(hunter2_banked_mem, AS_PROGRAM, 8, hunter2_state)
AM_RANGE(0x00000, 0x2ffff) AM_ROM AM_REGION("roms", 0x0000)
AM_RANGE(0x30000, 0x3ffff) AM_NOP
AM_RANGE(0x40000, 0xfffff) AM_RAM AM_REGION("rams", 0x0000)
ADDRESS_MAP_END
static ADDRESS_MAP_START(hunter2_mem, AS_PROGRAM, 8, hunter2_state)
ADDRESS_MAP_UNMAP_HIGH
AM_RANGE(0x0000, 0x3fff) AM_READ_BANK("bankr0") AM_WRITE_BANK("bankw0")
AM_RANGE(0x4000, 0x7fff) AM_READ_BANK("bankr1") AM_WRITE_BANK("bankw1")
AM_RANGE(0x8000, 0xbfff) AM_READ_BANK("bankr2") AM_WRITE_BANK("bankw2")
AM_RANGE(0x0000, 0x3fff) AM_DEVREADWRITE("bank1", address_map_bank_device, read8, write8)
AM_RANGE(0x4000, 0x7fff) AM_DEVREADWRITE("bank2", address_map_bank_device, read8, write8)
AM_RANGE(0x8000, 0xbfff) AM_DEVREADWRITE("bank3", address_map_bank_device, read8, write8)
AM_RANGE(0xc000, 0xffff) AM_RAM
ADDRESS_MAP_END
@ -294,23 +307,17 @@ WRITE8_MEMBER( hunter2_state::porte0_w )
{
if (data < 0x0a)
{
membank("bankr0")->set_entry(0);
membank("bankr1")->set_entry(0);
membank("bankr2")->set_entry(data);
membank("bankw0")->set_entry(0);
membank("bankw1")->set_entry(0);
membank("bankw2")->set_entry(0);
m_bank1->set_bank(0);
m_bank2->set_bank(1);
m_bank3->set_bank(2 + data);
}
else
if ((data >= 0x80) && (data <= 0x8f))
{
data -= 0x70;
membank("bankr0")->set_entry(data);
membank("bankr1")->set_entry(data);
membank("bankr2")->set_entry(data);
membank("bankw0")->set_entry(data);
membank("bankw1")->set_entry(data);
membank("bankw2")->set_entry(data);
UINT8 bank = data & 0x0f;
m_bank1->set_bank(16 + (bank*3));
m_bank2->set_bank(17 + (bank*3));
m_bank3->set_bank(18 + (bank*3));
}
}
@ -318,31 +325,15 @@ void hunter2_state::machine_reset()
{
m_keydata = 0xff;
m_irq_mask = 0;
membank("bankr0")->set_entry(0);
membank("bankr1")->set_entry(0);
membank("bankr2")->set_entry(0);
membank("bankw0")->set_entry(0);
membank("bankw1")->set_entry(0);
membank("bankw2")->set_entry(0);
m_bank1->set_bank(0);
m_bank2->set_bank(1);
m_bank3->set_bank(2);
}
// it is presumed that writing to rom will go nowhere
DRIVER_INIT_MEMBER( hunter2_state, hunter2 )
{
UINT8 *rom = m_rom->base();
UINT8 *ram = m_ram->base();
membank("bankr0")->configure_entries( 0, 10, &rom[0x00000], 0x0000);
membank("bankr0")->configure_entries(16, 16, &ram[0x00000], 0xc000);
membank("bankr1")->configure_entries( 0, 10, &rom[0x04000], 0x0000);
membank("bankr1")->configure_entries(16, 16, &ram[0x04000], 0xc000);
membank("bankr2")->configure_entries( 0, 10, &rom[0x08000], 0x4000);
membank("bankr2")->configure_entries(16, 16, &ram[0x08000], 0xc000);
membank("bankw0")->configure_entries( 0, 10, &ram[0xc0000], 0x0000);
membank("bankw0")->configure_entries(16, 16, &ram[0x00000], 0xc000);
membank("bankw1")->configure_entries( 0, 10, &ram[0xc0000], 0x0000);
membank("bankw1")->configure_entries(16, 16, &ram[0x04000], 0xc000);
membank("bankw2")->configure_entries( 0, 10, &ram[0xc0000], 0x0000);
membank("bankw2")->configure_entries(16, 16, &ram[0x08000], 0xc000);
m_nvram->set_base(ram,m_ram->bytes());
}
@ -436,6 +427,25 @@ static MACHINE_CONFIG_START( hunter2, hunter2_state )
MCFG_RS232_RXD_HANDLER(WRITELINE(hunter2_state,rxd_w))
MCFG_NVRAM_ADD_0FILL("nvram")
MCFG_DEVICE_ADD("bank1", ADDRESS_MAP_BANK, 0)
MCFG_DEVICE_PROGRAM_MAP(hunter2_banked_mem)
MCFG_ADDRESS_MAP_BANK_ENDIANNESS(ENDIANNESS_LITTLE)
MCFG_ADDRESS_MAP_BANK_DATABUS_WIDTH(8)
MCFG_ADDRESS_MAP_BANK_STRIDE(0x4000)
MCFG_DEVICE_ADD("bank2", ADDRESS_MAP_BANK, 0)
MCFG_DEVICE_PROGRAM_MAP(hunter2_banked_mem)
MCFG_ADDRESS_MAP_BANK_ENDIANNESS(ENDIANNESS_LITTLE)
MCFG_ADDRESS_MAP_BANK_DATABUS_WIDTH(8)
MCFG_ADDRESS_MAP_BANK_STRIDE(0x4000)
MCFG_DEVICE_ADD("bank3", ADDRESS_MAP_BANK, 0)
MCFG_DEVICE_PROGRAM_MAP(hunter2_banked_mem)
MCFG_ADDRESS_MAP_BANK_ENDIANNESS(ENDIANNESS_LITTLE)
MCFG_ADDRESS_MAP_BANK_DATABUS_WIDTH(8)
MCFG_ADDRESS_MAP_BANK_STRIDE(0x4000)
MACHINE_CONFIG_END
/* ROM definition */