diff options
author | 2020-07-18 10:43:34 -0400 | |
---|---|---|
committer | 2020-07-18 10:43:34 -0400 | |
commit | b4175b543d38ec6dcb4347fca8382da797ed7567 (patch) | |
tree | 810da3d14c6720cc2f12d7e68b594a7bf1f31bda | |
parent | b4eb4da53054ab7b72ca36eea830b18d39821821 (diff) |
tecnodar: Fix mapping; add EEPROM
-rw-r--r-- | src/mame/drivers/tecnodar.cpp | 38 |
1 files changed, 32 insertions, 6 deletions
diff --git a/src/mame/drivers/tecnodar.cpp b/src/mame/drivers/tecnodar.cpp index 85e0fb401e0..5efe913b489 100644 --- a/src/mame/drivers/tecnodar.cpp +++ b/src/mame/drivers/tecnodar.cpp @@ -8,6 +8,7 @@ #include "emu.h" #include "cpu/z80/z80.h" +#include "machine/eepromser.h" #include "machine/i8255.h" #include "sound/ay8910.h" #include "video/tms9928a.h" @@ -21,12 +22,18 @@ public: : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") , m_ppi(*this, "ppi") + , m_eeprom(*this, "eeprom") + , m_rombank(*this, "rombank") { } void tecnodar(machine_config &config); +protected: + virtual void machine_start() override; + private: + void bank_w(u8 data); u8 ppi_r(offs_t offset); void ppi_w(offs_t offset, u8 data); void ppi_pa_w(u8 data); @@ -38,9 +45,23 @@ private: required_device<z80_device> m_maincpu; required_device<i8255_device> m_ppi; + required_device<eeprom_serial_93cxx_device> m_eeprom; + required_memory_bank m_rombank; }; +void tecnodar_state::machine_start() +{ + m_rombank->configure_entries(0, 8, memregion("banked")->base(), 0x4000); + m_rombank->set_entry(0); +} + + +void tecnodar_state::bank_w(u8 data) +{ + m_rombank->set_entry(data & 0x07); +} + u8 tecnodar_state::ppi_r(offs_t offset) { return m_ppi->read(offset >> 5); @@ -53,7 +74,9 @@ void tecnodar_state::ppi_w(offs_t offset, u8 data) void tecnodar_state::ppi_pa_w(u8 data) { - logerror("%s: Writing %02X to PPI port A\n", machine().describe_context(), data); + m_eeprom->cs_write(BIT(data, 0)); + m_eeprom->clk_write(BIT(data, 1)); + m_eeprom->di_write(BIT(data, 2)); } void tecnodar_state::ppi_pb_w(u8 data) @@ -69,11 +92,11 @@ void tecnodar_state::ppi_pc_w(u8 data) void tecnodar_state::mem_map(address_map &map) { map(0x0000, 0x3fff).rom().region("program", 0); - //map(0x4000, 0x7fff).bankr("rombank"); + map(0x4000, 0x7fff).bankr("rombank"); map(0x8002, 0x8002).select(0x60).rw(FUNC(tecnodar_state::ppi_r), FUNC(tecnodar_state::ppi_w)); map(0x8004, 0x8004).w("psg", FUNC(ay8910_device::data_w)); - map(0x8008, 0x8008).w("psg", FUNC(ay8910_device::address_w)); - map(0x800c, 0x800c).r("psg", FUNC(ay8910_device::data_r)); + map(0x8008, 0x8008).r("psg", FUNC(ay8910_device::data_r)); + map(0x800c, 0x800c).w("psg", FUNC(ay8910_device::address_w)); map(0x8010, 0x8011).rw("vdp", FUNC(tms9129_device::read), FUNC(tms9129_device::write)); map(0xc000, 0xc7ff).ram(); } @@ -81,7 +104,7 @@ void tecnodar_state::mem_map(address_map &map) void tecnodar_state::io_map(address_map &map) { map.global_mask(0xff); - map(0x00, 0x00).nopw(); + map(0x00, 0x00).w(FUNC(tecnodar_state::bank_w)); } @@ -118,14 +141,17 @@ void tecnodar_state::tecnodar(machine_config &config) { Z80(config, m_maincpu, 10.245_MHz_XTAL / 3); // GoldStar Z8400APS; divider not verified m_maincpu->set_addrmap(AS_PROGRAM, &tecnodar_state::mem_map); - m_maincpu->set_addrmap(AS_PROGRAM, &tecnodar_state::io_map); + m_maincpu->set_addrmap(AS_IO, &tecnodar_state::io_map); // NMI is some sort of reset control I8255(config, m_ppi); // TMP82C55AP-2 m_ppi->out_pa_callback().set(FUNC(tecnodar_state::ppi_pa_w)); m_ppi->out_pb_callback().set(FUNC(tecnodar_state::ppi_pb_w)); + m_ppi->in_pc_callback().set(m_eeprom, FUNC(eeprom_serial_93cxx_device::do_read)).bit(0); m_ppi->out_pc_callback().set(FUNC(tecnodar_state::ppi_pc_w)); + EEPROM_93C46_8BIT(config, m_eeprom); // unknown 8-pin IC + SCREEN(config, "screen", SCREEN_TYPE_RASTER); tms9129_device &vdp(TMS9129(config, "vdp", 10.245_MHz_XTAL)); // surface-scratched 40-pin DIP; exact type unknown |