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New skeleton driver: Nintendo GameCube

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The driver currently decrypts the IPL and the CPU executes
the first few instructions.
This commit is contained in:
Dirk Best 2017-08-09 17:19:01 +02:00
parent cb850daa0d
commit b9ea144d34
4 changed files with 245 additions and 2 deletions
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1
scripts/target/mame/mess.lua
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@ -2472,6 +2472,7 @@ files {
MAME_DIR .. "src/mame/drivers/vboy.cpp",
MAME_DIR .. "src/mame/audio/vboy.cpp",
MAME_DIR .. "src/mame/audio/vboy.h",
MAME_DIR .. "src/mame/drivers/gamecube.cpp",
}
createMESSProjects(_target, _subtarget, "nokia")

235
src/mame/drivers/gamecube.cpp Normal file
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@ -0,0 +1,235 @@
// license: GPL-2.0+
// copyright-holders: Dirk Best
/***************************************************************************
Nintendo GameCube
Skeleton driver, just to document the available firmware dumps
for now.
***************************************************************************/
#include "emu.h"
#include "cpu/powerpc/ppc.h"
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
class gamecube_state : public driver_device
{
public:
gamecube_state(const machine_config &mconfig, device_type type, const char *tag) :
driver_device(mconfig, type, tag),
m_cpu(*this, "maincpu")
{ }
protected:
virtual void machine_start() override;
virtual void machine_reset() override;
private:
void decrypt(uint8_t *data, unsigned size);
required_device<cpu_device> m_cpu;
};
//**************************************************************************
// ADDRESS MAPS
//**************************************************************************
static ADDRESS_MAP_START( ppc_mem, AS_PROGRAM, 64, gamecube_state )
AM_RANGE(0x00000000, 0x017fffff) AM_RAM // 24 MB main memory
AM_RANGE(0x08000000, 0x081fffff) AM_RAM // 2 MB embedded framebuffer
AM_RANGE(0xfff00000, 0xffffffff) AM_ROMBANK("boot")
ADDRESS_MAP_END
//**************************************************************************
// INPUTS
//**************************************************************************
INPUT_PORTS_START( gc )
INPUT_PORTS_END
//**************************************************************************
// MACHINE
//**************************************************************************
// bootrom descrambler reversed by segher
// Copyright 2008 Segher Boessenkool <segher@kernel.crashing.org>
void gamecube_state::decrypt(uint8_t *data, unsigned size)
{
uint8_t acc = 0;
uint8_t nacc = 0;
uint16_t t = 0x2953;
uint16_t u = 0xd9c2;
uint16_t v = 0x3ff1;
uint8_t x = 1;
for (unsigned it = 0; it < size;)
{
int t0 = t & 1;
int t1 = (t >> 1) & 1;
int u0 = u & 1;
int u1 = (u >> 1) & 1;
int v0 = v & 1;
x ^= t1 ^ v0;
x ^= (u0 | u1);
x ^= (t0 ^ u1 ^ v0) & (t0 ^ u0);
if (t0 == u0)
{
v >>= 1;
if (v0)
v ^= 0xb3d0;
}
if (t0 == 0)
{
u >>= 1;
if (u0)
u ^= 0xfb10;
}
t >>= 1;
if (t0)
t ^= 0xa740;
nacc++;
acc = 2 * acc + x;
if (nacc == 8)
{
data[it++] ^= acc;
nacc = 0;
}
}
}
void gamecube_state::machine_start()
{
decrypt(memregion("ipl")->base() + 0x100, 0x1afe00);
// swap endianess after decryption
uint8_t *base;
int i, j;
for (i = 0, base = memregion("ipl")->base(); i < memregion("ipl")->bytes(); i += 8)
{
uint8_t temp[8];
memcpy(temp, base, 8);
for (j = 8 - 1; j >= 0; j--)
*base++ = temp[j];
}
membank("boot")->set_base(memregion("ipl")->base());
}
void gamecube_state::machine_reset()
{
}
//**************************************************************************
// MACHINE DEFINITIONS
//**************************************************************************
static MACHINE_CONFIG_START( gc )
MCFG_CPU_ADD("maincpu", PPC603, 485000000 / 100) // 485 MHz IBM "Gekko" (750CXe/750FX based)
MCFG_CPU_PROGRAM_MAP(ppc_mem)
MACHINE_CONFIG_END
//**************************************************************************
// ROM DEFINITIONS
//**************************************************************************
ROM_START( gcjp )
ROM_REGION64_BE(0x200000, "ipl", 0)
ROM_DEFAULT_BIOS("v12")
ROM_SYSTEM_BIOS(0, "v10", "IPL 1.0")
ROMX_LOAD("jpn_v10.bin", 0x000000, 0x200000, CRC(6dac1f2a) SHA1(a1837968288253ed541f2b11440b68f5a9b33875), ROM_BIOS(1))
ROM_SYSTEM_BIOS(1, "v11", "IPL 1.1")
ROMX_LOAD("jpn_v11.bin", 0x000000, 0x200000, CRC(d235e3f9) SHA1(96f69a21645de73a5ba61e57951ef303d55788c5), ROM_BIOS(2))
ROM_SYSTEM_BIOS(2, "v12", "IPL 1.2")
ROMX_LOAD("jpn_v12.bin", 0x000000, 0x200000, CRC(8bdabbd4) SHA1(f1b0ef434cd74fd8fe23698e2fc911d945b45bf1), ROM_BIOS(3))
ROM_REGION(0x20000, "dvd", 0)
ROM_LOAD("20010608.bin", 0x00000, 0x20000, CRC(c047465a) SHA1(27872c201e87b06a19bf85d36c796ef383f8d52d))
ROM_REGION(0x1000, "dsp_coef", 0)
ROM_LOAD("dsp_coef.bin", 0x0000, 0x1000, CRC(d2777c90) SHA1(c116d867ba001dcd6bf6d399ff4bf38d340f556c))
ROM_REGION(0x2000, "dsp_rom", 0)
ROM_LOAD("dsp_rom.bin", 0x0000, 0x2000, CRC(47daaa65) SHA1(3c6cc6e04fdd0b2a392d7a6ed769455444846be7))
ROM_END
ROM_START( gcus )
ROM_REGION(0x200000, "ipl", 0)
ROM_DEFAULT_BIOS("v12")
ROM_SYSTEM_BIOS(0, "v10", "IPL 1.0")
ROMX_LOAD("usa_v10.bin", 0x000000, 0x200000, CRC(6d740ae7) SHA1(015808f637a984acde6a06efa7546e278293c6ee), ROM_BIOS(1))
ROM_SYSTEM_BIOS(1, "v11", "IPL 1.1")
ROMX_LOAD("usa_v11.bin", 0x000000, 0x200000, CRC(d5e6feea) SHA1(239eacd86527ff9a75aeb7282da65797baeef010), ROM_BIOS(2))
ROM_SYSTEM_BIOS(2, "v12", "IPL 1.2")
ROMX_LOAD("usa_v12.bin", 0x000000, 0x200000, CRC(86573808) SHA1(ef9194ab4804aa0aa8540d846caf291b28331165), ROM_BIOS(3))
ROM_REGION(0x20000, "dvd", 0)
ROM_LOAD("20010608.bin", 0x00000, 0x20000, CRC(c047465a) SHA1(27872c201e87b06a19bf85d36c796ef383f8d52d))
ROM_REGION(0x1000, "dsp_coef", 0)
ROM_LOAD("dsp_coef.bin", 0x0000, 0x1000, CRC(d2777c90) SHA1(c116d867ba001dcd6bf6d399ff4bf38d340f556c))
ROM_REGION(0x2000, "dsp_rom", 0)
ROM_LOAD("dsp_rom.bin", 0x0000, 0x2000, CRC(47daaa65) SHA1(3c6cc6e04fdd0b2a392d7a6ed769455444846be7))
ROM_END
ROM_START( gceu )
ROM_REGION64_BE(0x200000, "ipl", 0)
ROM_DEFAULT_BIOS("v12")
ROM_SYSTEM_BIOS(0, "v10", "IPL 1.0")
ROMX_LOAD("pal_v10.bin", 0x000000, 0x200000, CRC(4f319f43) SHA1(f27c63e5394e2fd1606f70df004c4fc2d6027700), ROM_BIOS(1))
ROM_SYSTEM_BIOS(1, "v11", "IPL 1.1")
ROMX_LOAD("pal_v11.bin", 0x000000, 0x200000, CRC(dd8cab7c) SHA1(6f305c37dc1fbe332883bb8153eee26d3d325629), ROM_BIOS(2))
ROM_SYSTEM_BIOS(2, "v12", "IPL 1.2")
ROMX_LOAD("pal_v12.bin", 0x000000, 0x200000, CRC(ad1b7f16) SHA1(80b8744ff5e43585392f55546bd03a673d11ef5f), ROM_BIOS(3))
ROM_REGION(0x20000, "dvd", 0)
ROM_LOAD("20010608.bin", 0x00000, 0x20000, CRC(c047465a) SHA1(27872c201e87b06a19bf85d36c796ef383f8d52d))
ROM_REGION(0x1000, "dsp_coef", 0)
ROM_LOAD("dsp_coef.bin", 0x0000, 0x1000, CRC(d2777c90) SHA1(c116d867ba001dcd6bf6d399ff4bf38d340f556c))
ROM_REGION(0x2000, "dsp_rom", 0)
ROM_LOAD("dsp_rom.bin", 0x0000, 0x2000, CRC(47daaa65) SHA1(3c6cc6e04fdd0b2a392d7a6ed769455444846be7))
ROM_END
ROM_START( gcbr )
ROM_REGION64_BE(0x200000, "ipl", 0)
ROM_LOAD("bra_v10.bin", 0x000000, 0x200000, CRC(667d0b64) SHA1(f3cd0c7c61cbcefa85e7de3aff4cfa50bc508714))
ROM_REGION(0x20000, "dvd", 0)
ROM_LOAD("20010608.bin", 0x00000, 0x20000, CRC(c047465a) SHA1(27872c201e87b06a19bf85d36c796ef383f8d52d))
ROM_REGION(0x1000, "dsp_coef", 0)
ROM_LOAD("dsp_coef.bin", 0x0000, 0x1000, CRC(d2777c90) SHA1(c116d867ba001dcd6bf6d399ff4bf38d340f556c))
ROM_REGION(0x2000, "dsp_rom", 0)
ROM_LOAD("dsp_rom.bin", 0x0000, 0x2000, CRC(47daaa65) SHA1(3c6cc6e04fdd0b2a392d7a6ed769455444846be7))
ROM_END
//**************************************************************************
// SYSTEM DRIVERS
//**************************************************************************
// YEAR NAME PARENT MACHINE INPUT CLASS INIT ROTATION COMPANY FULLNAME FLAGS
GAME( 2001, gcjp, 0, gc, gc, gamecube_state, 0, ROT0, "Nintendo", "GameCube (Japan)", MACHINE_IS_SKELETON )
GAME( 2001, gcus, gcjp, gc, gc, gamecube_state, 0, ROT0, "Nintendo", "GameCube (US)", MACHINE_IS_SKELETON )
GAME( 2002, gceu, gcjp, gc, gc, gamecube_state, 0, ROT0, "Nintendo", "GameCube (EU)", MACHINE_IS_SKELETON )
GAME( 2002, gcbr, gcjp, gc, gc, gamecube_state, 0, ROT0, "Nintendo", "GameCube (Brazil)", MACHINE_IS_SKELETON )

10
src/mame/mame.lst
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@ -13259,6 +13259,12 @@ gamecom // Tiger Game.com
gamecst2 // MAME based bootleg, version 2.613
gamecstl // MAME based bootleg
@source:gamecube.cpp
gcjp // (c) 2001 Nintendo
gcus // (c) 2001 Nintendo
gceu // (c) 2002 Nintendo
gcbr // (c) 2002 Nintendo
@source:gameking.cpp
gamekin3 //
gameking //
@ -20360,7 +20366,7 @@ mt_wwar // 48
@source:megazone.cpp
megazone // GX319 (c) 1983
megazonea // GX319 (c) 1983 + Interlogic / Kosuka
megazoneb // GX319 (c) 1983
megazoneb // GX319 (c) 1983
megazoneh // GX319 (c) 1983 + Kosuka
megazonei // GX319 (c) 1983
megazonej // GX319 (c) 1983 + Interlogic / Kosuka
@ -30959,7 +30965,7 @@ ddp2j //
ddp2k //
ddp2t //
ddp3 // (c) 2002 DoDonPachi Dai-Ou-Jou / DoDonPachi III
ddpdoj //
ddpdoj //
ddpdoja //
ddpdojb //
ddpdojblk //

1
src/mame/mess.flt
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@ -217,6 +217,7 @@ galaxy.cpp
galeb.cpp
gamate.cpp
gamecom.cpp
gamecube.cpp
gameking.cpp
gamepock.cpp
gb.cpp