Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-07-03 17:08:39 +03:00
Code Issues Actions 1 Packages Projects Releases Wiki Activity

fidel6502: add cpu confsetting for su9 (nw)

Browse Source
This commit is contained in:
hap 2018-01-25 22:06:33 +01:00
parent ad11c8c9c9
commit 284d581788
2 changed files with 33 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
src/mame/drivers/fidel6502.cpp
View File

@ -158,13 +158,14 @@ All three of the above are called "segment H".
******************************************************************************
Super 9 Sensory Chess Challenger (SU9)
Super 9 Sensory Chess Challenger (SU9/DS9)
This is basically the Fidelity Elite A/S program on CSC hardware.
Model DS9(Deluxe) has a 5MHz XTAL, but is otherwise same.
---------------------------------
R6502AP CPU, assume 2MHz
1 RAM chip, assume 4KB
2*8KB ROM + 1*2KB ROM (+another 8KB ROM?)
R6502AP CPU, 1.95MHz(3.9MHz resonator)
2 RAM chips, assume 4KB
2*8KB ROM + 1*2KB ROM
built-in CB9 module
See CSC description above for more information.
@ -493,6 +494,9 @@ public:
DECLARE_WRITE_LINE_MEMBER(csc_pia1_cb2_w);
DECLARE_READ_LINE_MEMBER(csc_pia1_ca1_r);
DECLARE_READ_LINE_MEMBER(csc_pia1_cb1_r);
DECLARE_MACHINE_RESET(su9);
DECLARE_INPUT_CHANGED_MEMBER(su9_cpu_freq);
void su9_set_cpu_freq();
void csc(machine_config &config);
void su9(machine_config &config);
void rsc(machine_config &config);
@ -596,6 +600,18 @@ READ8_MEMBER(fidel6502_state::csc_speech_r)
return m_speech_rom[m_speech_bank << 12 | offset];
}
void fidel6502_state::su9_set_cpu_freq()
{
// SU9 CPU is clocked 1.95MHz, DS9 is 2.5MHz
m_maincpu->set_unscaled_clock((ioport("FAKE")->read() & 1) ? (5.0_MHz_XTAL/2) : (3.9_MHz_XTAL/2));
}
MACHINE_RESET_MEMBER(fidel6502_state, su9)
{
fidelbase_state::machine_reset();
su9_set_cpu_freq();
}
// 6821 PIA 0
@ -1350,8 +1366,18 @@ static INPUT_PORTS_START( su9 )
PORT_BIT(0x08, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_4) PORT_CODE(KEYCODE_4_PAD) PORT_NAME("LV / Rook")
PORT_BIT(0x10, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_5) PORT_CODE(KEYCODE_5_PAD) PORT_NAME("PV / Queen")
PORT_BIT(0x20, IP_ACTIVE_HIGH, IPT_KEYPAD) PORT_CODE(KEYCODE_6) PORT_CODE(KEYCODE_6_PAD) PORT_NAME("PB / King")
PORT_START("FAKE")
PORT_CONFNAME( 0x01, 0x00, "CPU Frequency" ) PORT_CHANGED_MEMBER(DEVICE_SELF, fidel6502_state, su9_cpu_freq, nullptr) // factory set
PORT_CONFSETTING( 0x00, "1.95MHz (SU9)" )
PORT_CONFSETTING( 0x01, "2.5MHz (DS9)" )
INPUT_PORTS_END
INPUT_CHANGED_MEMBER(fidel6502_state::su9_cpu_freq)
{
su9_set_cpu_freq();
}
static INPUT_PORTS_START( su9sp )
PORT_INCLUDE( su9 )
@ -1678,6 +1704,8 @@ MACHINE_CONFIG_DERIVED(fidel6502_state::su9, csc)
MCFG_CPU_MODIFY("maincpu")
MCFG_CPU_PROGRAM_MAP(su9_map)
MCFG_MACHINE_RESET_OVERRIDE(fidel6502_state, su9)
MCFG_DEFAULT_LAYOUT(layout_fidel_su9)
MACHINE_CONFIG_END

2
src/mame/mame.lst
View File

@ -14679,8 +14679,8 @@ lightfgt // Milton Bradley
mdallas // Mattel
plus1 // Milton Bradley
qkracer // National Semiconductor
vidchal // Select Merchandise
unkeinv // Gordon Barlow Design
vidchal // Select Merchandise
@source:hh_hmcs40.cpp
alnattck // Coleco