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fidel6502: update notes (nw)

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This commit is contained in:
hap 2016-10-03 16:10:50 +02:00
parent 3a3efaec8f
commit dad928b11f
1 changed files with 18 additions and 9 deletions
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27
src/mame/drivers/fidel6502.cpp
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@ -6,7 +6,8 @@
Fidelity Electronics 6502 based board driver
TODO:
- x
- Why does fexcelp give error beeps at start? As if chessboard buttons are
pressed (button logic is not inverted). It works fine after pressing clear.
******************************************************************************
@ -173,12 +174,13 @@ PCB label 510-1035A01
******************************************************************************
Elite A/S Challenger (EAS)
This was out in 1982. 2 program updates were released in 1983 and 1984,
This came out in 1982. 2 program updates were released in 1983 and 1984,
named Budapest and Glasgow, places where Fidelity won chess computer matches.
A/S stands for auto sensory, it's the 1st Fidelity board with magnet sensors.
---------------------------------
8*8 magnet sensors, 11 buttons, 8*(8+1) LEDs + 4*7seg LEDs
R65C02P4 CPU, default frequency 3MHz*
R65C02P4 or R6502BP CPU, default frequency 3MHz*
4KB RAM (2*HM6116), 24KB ROM
TSI S14001A + speech ROM
I/O with 8255 PPI and bunch of TTL
@ -409,7 +411,7 @@ public:
DECLARE_WRITE8_MEMBER(sc9_led_w);
DECLARE_READ8_MEMBER(sc9_input_r);
// SC12/6086
// SC12
DECLARE_WRITE8_MEMBER(sc12_control_w);
DECLARE_READ8_MEMBER(sc12_input_r);
DECLARE_READ8_MEMBER(sc12_cart_r);
@ -423,6 +425,7 @@ public:
// Chesster
DECLARE_WRITE8_MEMBER(chesster_control_w);
DECLARE_READ8_MEMBER(chesster_input_r);
DECLARE_DRIVER_INIT(chesster);
};
@ -679,7 +682,7 @@ READ8_MEMBER(fidel6502_state::sc9_input_r)
/******************************************************************************
SC12/6086
SC12
******************************************************************************/
// TTL/generic
@ -836,6 +839,12 @@ WRITE8_MEMBER(fidel6502_state::chesster_control_w)
membank("bank1")->set_entry((m_led_select >> 2 & 3) | (m_speech_bank >> 1 & 4));
}
READ8_MEMBER(fidel6502_state::chesster_input_r)
{
// a0-a2,d7: multiplexed inputs (active low)
return (read_inputs(9) >> offset & 1) ? 0 : 0x80;
}
DRIVER_INIT_MEMBER(fidel6502_state, chesster)
{
membank("bank1")->configure_entries(0, 8, memregion("speech")->base(), 0x4000);
@ -940,7 +949,7 @@ static ADDRESS_MAP_START( fexcel_map, AS_PROGRAM, 8, fidel6502_state )
ADDRESS_MAP_END
static ADDRESS_MAP_START( fexcelp_map, AS_PROGRAM, 8, fidel6502_state )
AM_RANGE(0x0000, 0x1fff) AM_MIRROR(0x2000) AM_RAM
AM_RANGE(0x0000, 0x1fff) AM_RAM
AM_RANGE(0x4000, 0x4007) AM_MIRROR(0x3ff8) AM_READWRITE(fexcel_ttl_r, fexcel_ttl_w)
AM_RANGE(0x8000, 0xffff) AM_ROM
ADDRESS_MAP_END
@ -956,7 +965,7 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( chesster_map, AS_PROGRAM, 8, fidel6502_state )
AM_RANGE(0x0000, 0x1fff) AM_RAM
AM_RANGE(0x2000, 0x2007) AM_MIRROR(0x1ff8) AM_READWRITE(sc12_input_r, chesster_control_w)
AM_RANGE(0x2000, 0x2007) AM_MIRROR(0x1ff8) AM_READWRITE(chesster_input_r, chesster_control_w)
AM_RANGE(0x4000, 0x7fff) AM_ROMBANK("bank1")
AM_RANGE(0x6000, 0x6000) AM_MIRROR(0x1fff) AM_DEVWRITE("dac", dac_device, write_signed8)
AM_RANGE(0x8000, 0xffff) AM_ROM
@ -1658,7 +1667,7 @@ MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED( fexcelp, fexcel )
/* basic machine hardware */
MCFG_CPU_REPLACE("maincpu", R65C02, XTAL_5MHz)
MCFG_CPU_REPLACE("maincpu", R65C02, XTAL_5MHz) // R65C02P4
MCFG_CPU_PROGRAM_MAP(fexcelp_map)
MACHINE_CONFIG_END
@ -1964,7 +1973,7 @@ ROM_END
ROM_START( fexcelp )
ROM_REGION( 0x10000, "maincpu", 0 )
ROM_LOAD("par_ex.ic5", 0x8000, 0x8000, CRC(274d6aff) SHA1(c8d943b2f15422ac62f539b568f5509cbce568a3) )
ROM_LOAD("par_ex.ic5", 0x8000, 0x8000, CRC(274d6aff) SHA1(c8d943b2f15422ac62f539b568f5509cbce568a3) ) // GI 27C256, no label
ROM_END
ROM_START( fexcelv )