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Maketrax : simulate protection [iq_132, Robbbert]

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This commit is contained in:
Robbbert 2018-01-10 03:13:03 +11:00
parent f80b76c391
commit b66737f7be
2 changed files with 82 additions and 49 deletions
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89
src/mame/drivers/pacman.cpp
View File

@ -395,7 +395,12 @@ MACHINE_RESET_MEMBER(pacman_state,superabc)
superabc_bank_w(m_maincpu->space(AS_PROGRAM), 0, 0);
}
MACHINE_RESET_MEMBER(pacman_state,maketrax)
{
m_maketrax_counter = 0;
m_maketrax_offset = 0;
m_maketrax_disable_protection = 0;
}
/*************************************
*
@ -575,13 +580,44 @@ READ8_MEMBER(pacman_state::alibaba_mystery_2_r)
*
*************************************/
WRITE8_MEMBER(pacman_state::maketrax_protection_w)
{
if (data == 0) // disable protection / reset?
{
m_maketrax_counter = 0;
m_maketrax_offset = 0;
m_maketrax_disable_protection = 1;
return;
}
if (data == 1)
{
m_maketrax_disable_protection = 0;
m_maketrax_counter++;
if (m_maketrax_counter == 0x3c)
{
m_maketrax_counter = 0;
m_maketrax_offset++;
if (m_maketrax_offset == 0x1e)
m_maketrax_offset = 0;
}
}
}
READ8_MEMBER(pacman_state::maketrax_special_port2_r)
{
int data = ioport("DSW1")->read();
int pc = m_maincpu->pcbase();
if ((pc == 0x1973) || (pc == 0x2389)) return data | 0x40;
const uint8_t protdata[0x1e] = { // table at $ebd (odd entries)
0x00, 0xc0, 0x00, 0x40, 0xc0, 0x40, 0x00, 0xc0, 0x00, 0x40, 0x00, 0xc0, 0x00, 0x40, 0xc0, 0x40,
0x00, 0xc0, 0x00, 0x40, 0x00, 0xc0, 0x00, 0x40, 0xc0, 0x40, 0x00, 0xc0, 0x00, 0x40
};
if (m_maketrax_disable_protection == 0)
return protdata[m_maketrax_offset];
uint8_t data = ioport("DSW1")->read() & 0x3f;
switch (offset)
{
case 0x01:
@ -598,11 +634,13 @@ READ8_MEMBER(pacman_state::maketrax_special_port2_r)
READ8_MEMBER(pacman_state::maketrax_special_port3_r)
{
int pc = m_maincpu->pcbase();
if (pc == 0x040e) return 0x20;
if ((pc == 0x115e) || (pc == 0x3ae2)) return 0x00;
const uint8_t protdata[0x1e] = { // table at $ebd (even entries)
0x1f, 0x3f, 0x2f, 0x2f, 0x0f, 0x0f, 0x0f, 0x3f, 0x0f, 0x0f, 0x1c, 0x3c, 0x2c, 0x2c, 0x0c, 0x0c,
0x0c, 0x3c, 0x0c, 0x0c, 0x11, 0x31, 0x21, 0x21, 0x01, 0x01, 0x01, 0x31, 0x01, 0x01
};
if (m_maketrax_disable_protection == 0)
return protdata[m_maketrax_offset];
switch (offset)
{
@ -3512,7 +3550,11 @@ static MACHINE_CONFIG_START( pacman )
MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED( maketrax, pacman )
MCFG_CPU_MODIFY("maincpu")
MCFG_MACHINE_RESET_OVERRIDE(pacman_state,maketrax)
MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED( korosuke, pacman )
MCFG_CPU_MODIFY("maincpu")
MCFG_CPU_DECRYPTED_OPCODES_MAP(patched_opcodes_map)
MCFG_DEVICE_MODIFY("mainlatch") // 8K on original boards
@ -6813,33 +6855,12 @@ ROM_END
*
*************************************/
void pacman_state::maketrax_rom_decode()
{
uint8_t *rom = memregion("maincpu")->base();
/* patch protection using a copy of the opcodes so ROM checksum */
/* tests will not fail */
memcpy(m_patched_opcodes,rom,0x4000);
m_patched_opcodes[0x0415] = 0xc9;
m_patched_opcodes[0x1978] = 0x18;
m_patched_opcodes[0x238e] = 0xc9;
m_patched_opcodes[0x3ae5] = 0xe6;
m_patched_opcodes[0x3ae7] = 0x00;
m_patched_opcodes[0x3ae8] = 0xc9;
m_patched_opcodes[0x3aed] = 0x86;
m_patched_opcodes[0x3aee] = 0xc0;
m_patched_opcodes[0x3aef] = 0xb0;
}
DRIVER_INIT_MEMBER(pacman_state,maketrax)
{
/* set up protection handlers */
m_maincpu->space(AS_PROGRAM).install_write_handler(0x5004, 0x5004, write8_delegate(FUNC(pacman_state::maketrax_protection_w),this));
m_maincpu->space(AS_PROGRAM).install_read_handler(0x5080, 0x50bf, read8_delegate(FUNC(pacman_state::maketrax_special_port2_r),this));
m_maincpu->space(AS_PROGRAM).install_read_handler(0x50c0, 0x50ff, read8_delegate(FUNC(pacman_state::maketrax_special_port3_r),this));
maketrax_rom_decode();
}
void pacman_state::korosuke_rom_decode()
@ -7323,7 +7344,7 @@ GAME( 1981, crush4, crush, pacman, maketrax, pacman_state, eyes, ROT
GAME( 1981, crush5, crush, crush4, crush4, pacman_state, 0, ROT90, "Alpha Denshi Co. / Kural TWT", "Crush Roller (set 5)", MACHINE_SUPPORTS_SAVE )
GAME( 1981, maketrax, crush, maketrax, maketrax, pacman_state, maketrax, ROT270, "Alpha Denshi Co. / Kural (Williams license)", "Make Trax (US set 1)", MACHINE_SUPPORTS_SAVE )
GAME( 1981, maketrxb, crush, maketrax, maketrax, pacman_state, maketrax, ROT270, "Alpha Denshi Co. / Kural (Williams license)", "Make Trax (US set 2)", MACHINE_SUPPORTS_SAVE )
GAME( 1981, korosuke, crush, maketrax, korosuke, pacman_state, korosuke, ROT90, "Alpha Denshi Co. / Kural Electric, Ltd.", "Korosuke Roller (Japan)", MACHINE_SUPPORTS_SAVE ) // ADK considers it a sequel?
GAME( 1981, korosuke, crush, korosuke, korosuke, pacman_state, korosuke, ROT90, "Alpha Denshi Co. / Kural Electric, Ltd.", "Korosuke Roller (Japan)", MACHINE_SUPPORTS_SAVE ) // ADK considers it a sequel?
GAME( 1981, crushrlf, crush, pacman, maketrax, pacman_state, 0, ROT90, "bootleg", "Crush Roller (Famare SA PCB)", MACHINE_SUPPORTS_SAVE )
GAME( 1981, crushbl, crush, pacman, maketrax, pacman_state, 0, ROT90, "bootleg", "Crush Roller (bootleg set 1)", MACHINE_SUPPORTS_SAVE )
GAME( 1981, crushbl2, crush, maketrax, mbrush, pacman_state, maketrax, ROT90, "bootleg", "Crush Roller (bootleg set 2)", MACHINE_SUPPORTS_SAVE )

42
src/mame/includes/pacman.h
View File

@ -13,23 +13,25 @@ class pacman_state : public driver_device
{
public:
pacman_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_namco_sound(*this, "namco"),
m_watchdog(*this, "watchdog"),
m_spriteram(*this, "spriteram"),
m_spriteram2(*this, "spriteram2"),
m_s2650_spriteram(*this, "s2650_spriteram"),
m_videoram(*this, "videoram"),
m_colorram(*this, "colorram"),
m_s2650games_tileram(*this, "s2650_tileram"),
m_rocktrv2_prot_data(*this, "rocktrv2_prot"),
m_gfxdecode(*this, "gfxdecode"),
m_palette(*this, "palette"),
m_patched_opcodes(*this, "patched_opcodes")
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_namco_sound(*this, "namco")
, m_watchdog(*this, "watchdog")
, m_spriteram(*this, "spriteram")
, m_spriteram2(*this, "spriteram2")
, m_s2650_spriteram(*this, "s2650_spriteram")
, m_videoram(*this, "videoram")
, m_colorram(*this, "colorram")
, m_s2650games_tileram(*this, "s2650_tileram")
, m_rocktrv2_prot_data(*this, "rocktrv2_prot")
, m_gfxdecode(*this, "gfxdecode")
, m_palette(*this, "palette")
, m_patched_opcodes(*this, "patched_opcodes")
{ }
required_device<cpu_device> m_maincpu;
private:
optional_device<namco_device> m_namco_sound;
required_device<watchdog_timer_device> m_watchdog;
optional_shared_ptr<uint8_t> m_spriteram;
@ -57,6 +59,11 @@ public:
uint8_t m_bgpriority;
int m_xoffsethack;
uint8_t m_inv_spr;
uint8_t m_maketrax_counter;
uint8_t m_maketrax_offset;
int m_maketrax_disable_protection;
public:
uint8_t m_irq_mask;
DECLARE_WRITE8_MEMBER(pacman_interrupt_vector_w);
@ -69,6 +76,7 @@ public:
DECLARE_WRITE8_MEMBER(alibaba_sound_w);
DECLARE_READ8_MEMBER(alibaba_mystery_1_r);
DECLARE_READ8_MEMBER(alibaba_mystery_2_r);
DECLARE_WRITE8_MEMBER(maketrax_protection_w);
DECLARE_READ8_MEMBER(maketrax_special_port2_r);
DECLARE_READ8_MEMBER(maketrax_special_port3_r);
DECLARE_READ8_MEMBER(korosuke_special_port2_r);
@ -145,6 +153,7 @@ public:
DECLARE_VIDEO_START(s2650games);
DECLARE_MACHINE_RESET(mschamp);
DECLARE_MACHINE_RESET(superabc);
DECLARE_MACHINE_RESET(maketrax);
DECLARE_VIDEO_START(pengo);
DECLARE_VIDEO_START(jrpacman);
uint32_t screen_update_pacman(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
@ -152,13 +161,15 @@ public:
INTERRUPT_GEN_MEMBER(vblank_irq);
INTERRUPT_GEN_MEMBER(vblank_nmi);
INTERRUPT_GEN_MEMBER(s2650_interrupt);
private:
void init_save_state();
void jrpacman_mark_tile_dirty( int offset );
void maketrax_rom_decode();
void korosuke_rom_decode();
void eyes_decode(uint8_t *data);
void mspacman_install_patches(uint8_t *ROM);
public:
// epos.c
DECLARE_READ8_MEMBER(epos_decryption_w);
DECLARE_MACHINE_START(theglobp);
@ -168,6 +179,7 @@ public:
DECLARE_MACHINE_START(acitya);
DECLARE_MACHINE_RESET(acitya);
private:
// pacplus.c
uint8_t pacplus_decrypt(int addr, uint8_t e);
void pacplus_decode();