From f9a0330e1b9a0ed1f5cb207a914ddedfd1bb6884 Mon Sep 17 00:00:00 2001 From: Robbbert Date: Mon, 3 Jun 2013 12:52:45 +0000 Subject: [PATCH] (MESS) altos5 wip --- src/mess/drivers/altos5.c | 55 ++++++++++++++++++++++++++++++--------- 1 file changed, 42 insertions(+), 13 deletions(-) diff --git a/src/mess/drivers/altos5.c b/src/mess/drivers/altos5.c index 8e8918f9ef4..20f9b46f948 100644 --- a/src/mess/drivers/altos5.c +++ b/src/mess/drivers/altos5.c @@ -17,16 +17,36 @@ public: m_maincpu(*this, "maincpu") { } + DECLARE_READ8_MEMBER(altos_2e_r); DECLARE_READ8_MEMBER(altos_2f_r); - DECLARE_WRITE8_MEMBER( kbd_put ); + DECLARE_WRITE8_MEMBER(kbd_put); + DECLARE_WRITE8_MEMBER(bank_w); + DECLARE_DRIVER_INIT(altos5); UINT8 m_term_data; required_device m_maincpu; virtual void machine_reset(); }; +READ8_MEMBER( altos5_state::altos_2e_r ) +{ + UINT8 ret = m_term_data; + m_term_data = 0; + return ret; +} + READ8_MEMBER( altos5_state::altos_2f_r ) { - return 0x0c; + return (m_term_data) ? 0x0d : 0x0c; +} + +WRITE8_MEMBER( altos5_state::bank_w ) +{ + UINT8 bank=0; + if (data == 0x18) bank=1; //3 1000-FFFF (f000-ffff is common ram) + if (data == 0x10) bank=1; //2 4000-FFFF + if (data == 0x08) bank=1; //1 4000-FFFF + if (data == 0) bank=1; // 0 shadow ram under rom + membank("bank1")->set_entry(bank); } WRITE8_MEMBER( altos5_state::kbd_put ) @@ -42,12 +62,14 @@ static GENERIC_TERMINAL_INTERFACE( terminal_intf ) static ADDRESS_MAP_START(altos5_mem, AS_PROGRAM, 8, altos5_state) ADDRESS_MAP_UNMAP_HIGH - AM_RANGE(0x0000, 0xffff) AM_RAM AM_REGION("maincpu", 0) + AM_RANGE(0x0000, 0x0fff) AM_RAMBANK("bank1") + AM_RANGE(0x1000, 0xffff) AM_RAM ADDRESS_MAP_END static ADDRESS_MAP_START(altos5_io, AS_IO, 8, altos5_state) ADDRESS_MAP_GLOBAL_MASK(0xff) - AM_RANGE(0x2e, 0x2e) AM_DEVWRITE(TERMINAL_TAG, generic_terminal_device, write) + AM_RANGE(0x09, 0x09) AM_WRITE(bank_w) + AM_RANGE(0x2e, 0x2e) AM_READ(altos_2e_r) AM_DEVWRITE(TERMINAL_TAG, generic_terminal_device, write) AM_RANGE(0x2f, 0x2f) AM_READ(altos_2f_r) ADDRESS_MAP_END @@ -57,9 +79,13 @@ INPUT_PORTS_END void altos5_state::machine_reset() { - UINT8 *m_p_maincpu = memregion("maincpu")->base(); - UINT8 *m_p_roms = memregion("roms")->base(); - memcpy(m_p_maincpu, m_p_roms, 0x1000); + membank("bank1")->set_entry(1); +} + +DRIVER_INIT_MEMBER( altos5_state, altos5 ) +{ + UINT8 *RAM = memregion("maincpu")->base(); + membank("bank1")->configure_entries(0, 2, &RAM[0], 0x10000); } static MACHINE_CONFIG_START( altos5, altos5_state ) @@ -75,13 +101,16 @@ MACHINE_CONFIG_END /* ROM definition */ ROM_START( altos5 ) - ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) - ROM_REGION( 0x10000, "roms", 0 ) - ROM_LOAD("2732.bin", 0x0000, 0x1000, CRC(15fdc7eb) SHA1(e15bdf5d5414ad56f8c4bb84edc6f967a5f01ba9)) - ROM_LOAD("82s141.bin", 0x1000, 0x0200, CRC(35c8078c) SHA1(dce24374bfcc5d23959e2c03485d82a119c0c3c9)) + ROM_REGION( 0x11000, "maincpu", ROMREGION_ERASEFF ) + ROM_LOAD("2732.bin", 0x10000, 0x1000, CRC(15fdc7eb) SHA1(e15bdf5d5414ad56f8c4bb84edc6f967a5f01ba9)) // bios + ROM_FILL(0x10054, 2, 0) // temp until banking sorted out + ROM_FILL(0x10344, 3, 0) // kill self test + + ROM_REGION( 0x200, "user1", 0 ) + ROM_LOAD("82s141.bin", 0x0000, 0x0200, CRC(35c8078c) SHA1(dce24374bfcc5d23959e2c03485d82a119c0c3c9)) // looks like a keyboard matrix ROM_END /* Driver */ -/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ -COMP(19??, altos5, 0, 0, altos5, altos5, driver_device, 0, "Altos", "Altos 5-15", GAME_NOT_WORKING | GAME_NO_SOUND) +/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ +COMP(19??, altos5, 0, 0, altos5, altos5, altos5_state, altos5, "Altos", "Altos 5-15", GAME_NOT_WORKING | GAME_NO_SOUND)