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ti89.cpp: TI-92 is ROM-based; all others use flash memory (nw)

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This commit is contained in:
AJR 2019-04-27 18:02:26 -04:00
parent 6f6a87dd45
commit cb2b4628fa
2 changed files with 23 additions and 34 deletions
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51
src/mame/drivers/ti89.cpp
View File

@ -143,23 +143,9 @@ READ16_MEMBER ( ti68k_state::ti68k_io2_r )
}
WRITE16_MEMBER ( ti68k_state::flash_w )
READ16_MEMBER ( ti68k_state::rom_r )
{
// verification if it is flash memory
if (m_flash_mem)
m_flash->write(offset, data);
}
READ16_MEMBER ( ti68k_state::flash_r )
{
if (m_flash_mem)
{
return m_flash->read(offset);
}
else
{
return m_rom_base[offset];
}
return m_rom_base[offset];
}
@ -208,7 +194,7 @@ void ti68k_state::ti89_mem(address_map &map)
{
map.unmap_value_high();
map(0x000000, 0x0fffff).ram().share("nvram");
map(0x200000, 0x3fffff).rw(FUNC(ti68k_state::flash_r), FUNC(ti68k_state::flash_w));
map(0x200000, 0x3fffff).rw(m_flash, FUNC(intelfsh16_device::read), FUNC(intelfsh16_device::write));
map(0x400000, 0x5fffff).noprw();
map(0x600000, 0x6fffff).rw(FUNC(ti68k_state::ti68k_io_r), FUNC(ti68k_state::ti68k_io_w));
map(0x700000, 0x7fffff).rw(FUNC(ti68k_state::ti68k_io2_r), FUNC(ti68k_state::ti68k_io2_w));
@ -220,7 +206,7 @@ void ti68k_state::ti92p_mem(address_map &map)
map.unmap_value_high();
map(0x000000, 0x0fffff).ram().share("nvram");
map(0x200000, 0x3fffff).noprw();
map(0x400000, 0x5fffff).rw(FUNC(ti68k_state::flash_r), FUNC(ti68k_state::flash_w));
map(0x400000, 0x5fffff).rw(m_flash, FUNC(intelfsh16_device::read), FUNC(intelfsh16_device::write));
map(0x600000, 0x6fffff).rw(FUNC(ti68k_state::ti68k_io_r), FUNC(ti68k_state::ti68k_io_w));
map(0x700000, 0x7fffff).rw(FUNC(ti68k_state::ti68k_io2_r), FUNC(ti68k_state::ti68k_io2_w));
}
@ -230,7 +216,7 @@ void ti68k_state::v200_mem(address_map &map)
{
map.unmap_value_high();
map(0x000000, 0x0fffff).ram().share("nvram");
map(0x200000, 0x5fffff).rw(FUNC(ti68k_state::flash_r), FUNC(ti68k_state::flash_w));
map(0x200000, 0x5fffff).rw(m_flash, FUNC(intelfsh16_device::read), FUNC(intelfsh16_device::write));
map(0x600000, 0x6fffff).rw(FUNC(ti68k_state::ti68k_io_r), FUNC(ti68k_state::ti68k_io_w));
map(0x700000, 0x70ffff).rw(FUNC(ti68k_state::ti68k_io2_r), FUNC(ti68k_state::ti68k_io2_w));
}
@ -242,7 +228,7 @@ void ti68k_state::ti89t_mem(address_map &map)
map(0x000000, 0x0fffff).ram().mirror(0x200000).share("nvram");
map(0x600000, 0x6fffff).rw(FUNC(ti68k_state::ti68k_io_r), FUNC(ti68k_state::ti68k_io_w));
map(0x700000, 0x70ffff).rw(FUNC(ti68k_state::ti68k_io2_r), FUNC(ti68k_state::ti68k_io2_w));
map(0x800000, 0xbfffff).rw(FUNC(ti68k_state::flash_r), FUNC(ti68k_state::flash_w));
map(0x800000, 0xbfffff).rw(m_flash, FUNC(intelfsh16_device::read), FUNC(intelfsh16_device::write));
map(0xc00000, 0xffffff).noprw();
}
@ -432,13 +418,10 @@ INPUT_PORTS_END
void ti68k_state::machine_start()
{
int i;
m_flash_mem = !((m_rom_base[0x32] & 0x0f) != 0);
if (m_flash_mem)
if (m_flash.found())
{
uint32_t base = ((((m_rom_base[0x82]) << 16) | m_rom_base[0x83]) & 0xffff)>>1;
int i;
if (m_rom_base[base] >= 8)
m_hw_version = ((m_rom_base[base + 0x0b]) << 16) | m_rom_base[base + 0x0c];
@ -461,15 +444,15 @@ void ti68k_state::machine_start()
if (m_initial_pc > 0x400000)
{
m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0x400000, 0x5fffff, read16_delegate(FUNC(ti68k_state::flash_r), this),write16_delegate(FUNC(ti68k_state::flash_w), this));
m_maincpu->space(AS_PROGRAM).install_read_handler(0x400000, 0x5fffff, read16_delegate(FUNC(ti68k_state::rom_r), this));
}
else
{
m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0x200000, 0x3fffff, read16_delegate(FUNC(ti68k_state::flash_r), this), write16_delegate(FUNC(ti68k_state::flash_w), this));
m_maincpu->space(AS_PROGRAM).install_read_handler(0x200000, 0x3fffff, read16_delegate(FUNC(ti68k_state::rom_r), this));
}
}
logerror("HW=v%x, PC=%06x, Type=%s\n", m_hw_version, m_initial_pc, (m_flash_mem) ? "Flash" : "ROM");
logerror("HW=v%x, PC=%06x, Type=%s\n", m_hw_version, m_initial_pc, m_flash.found() ? "Flash" : "ROM");
}
@ -549,6 +532,8 @@ void ti68k_state::ti92(machine_config &config)
ti89(config);
m_maincpu->set_addrmap(AS_PROGRAM, &ti68k_state::ti92_mem);
config.device_remove("flash");
/* video hardware */
subdevice<screen_device>("screen")->set_visarea(0, 240-1, 0, 128-1);
}
@ -556,17 +541,23 @@ void ti68k_state::ti92(machine_config &config)
void ti68k_state::ti92p(machine_config &config)
{
ti92(config);
ti89(config);
m_maincpu->set_clock(XTAL(12'000'000));
m_maincpu->set_addrmap(AS_PROGRAM, &ti68k_state::ti92p_mem);
/* video hardware */
subdevice<screen_device>("screen")->set_visarea(0, 240-1, 0, 128-1);
}
void ti68k_state::v200(machine_config &config)
{
ti92(config);
ti89(config);
m_maincpu->set_clock(XTAL(12'000'000));
m_maincpu->set_addrmap(AS_PROGRAM, &ti68k_state::v200_mem);
/* video hardware */
subdevice<screen_device>("screen")->set_visarea(0, 240-1, 0, 128-1);
}

6
src/mame/includes/ti89.h
View File

@ -49,7 +49,7 @@ private:
enum { HW1=1, HW2, HW3, HW4 };
required_device<cpu_device> m_maincpu;
required_device<sharp_unk128mbit_device> m_flash;
optional_device<sharp_unk128mbit_device> m_flash;
required_region_ptr<uint16_t> m_rom_base;
required_ioport m_io_bit0;
required_ioport m_io_bit1;
@ -62,7 +62,6 @@ private:
// HW specifications
uint8_t m_hw_version;
bool m_flash_mem;
uint32_t m_initial_pc;
// keyboard
@ -93,8 +92,7 @@ private:
DECLARE_READ16_MEMBER( ti68k_io_r );
DECLARE_WRITE16_MEMBER( ti68k_io2_w );
DECLARE_READ16_MEMBER( ti68k_io2_r );
DECLARE_WRITE16_MEMBER( flash_w );
DECLARE_READ16_MEMBER( flash_r );
DECLARE_READ16_MEMBER( rom_r );
void ti68k_palette(palette_device &palette) const;
TIMER_DEVICE_CALLBACK_MEMBER(ti68k_timer_callback);