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igs/igs_fear.cpp - add IGS027A dump to fearless [tormod, Peter Wilhelmsen, XingXing] #12553

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merged 3 commits into from
Jul 9, 2024
Merged

igs/igs_fear.cpp - add IGS027A dump to fearless [tormod, Peter Wilhelmsen, XingXing] #12553

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f5042eb
igs_fear.cpp - add IGS027A dump
Jul 7, 2024
fe30427
correct clock for XA
Jul 7, 2024
065bb18
correct clock
Jul 7, 2024
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5 changes: 2 additions & 3 deletions src/mame/igs/igs_fear.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -139,7 +139,7 @@ void igs_fear_state::igs_fear(machine_config &config)
ARM7(config, m_maincpu, 50000000/2);
m_maincpu->set_addrmap(AS_PROGRAM, &igs_fear_state::main_map);

MX10EXA(config, m_xa, 10000000); // MX10EXAQC (Philips 80C51 XA) unknown frequency
MX10EXA(config, m_xa, 50000000/3); // MX10EXAQC (Philips 80C51 XA)

screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
screen.set_refresh_hz(60);
Expand All @@ -162,8 +162,7 @@ void igs_fear_state::igs_fear(machine_config &config)

ROM_START( fearless )
ROM_REGION( 0x04000, "maincpu", 0 ) // Internal rom of IGS027A ARM based MCU
// this is taken from superkds, the XOR table required (that is uploaded by this internal ROM) is the same as superkds at least, but actual internal ROM might not be identical
ROM_LOAD( "fearless_igs027a.bin", 0x00000, 0x4000, BAD_DUMP CRC(9a8e790d) SHA1(ab020a04a4ed0c0e5ec8c979f206fe57572d2304) ) // sticker marked 'F1'
ROM_LOAD( "fearless_igs027a.bin", 0x00000, 0x4000, CRC(2121f01b) SHA1(de44016b590fdcf6bfb63e3f8dbbbd679938fe87) ) // sticker marked 'F1'

ROM_REGION32_LE( 0x80000, "user1", 0 ) // external ARM data / prg
ROM_LOAD( "fearlessp_v-101us.u37", 0x000000, 0x80000, CRC(2522873c) SHA1(8db709877311b6d2796353fc9a44a820937e35c2) )
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4 changes: 2 additions & 2 deletions src/mame/igs/pgmcrypt.cpp
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Expand Up @@ -1453,8 +1453,8 @@ void fearless_decrypt(running_machine &machine)
uint16_t x = src[i];

IGS27_CRYPT1
IGS27_CRYPT2_ALT
IGS27_CRYPT3
// IGS27_CRYPT2
IGS27_CRYPT3_ALT2
IGS27_CRYPT4
// IGS27_CRYPT5
IGS27_CRYPT6
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