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Route16 : simulate protection [iq_132, Robbbert]

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This commit is contained in:
Robbbert 2017-12-30 09:56:02 +11:00
parent ce54579557
commit 6dd2282ae1
2 changed files with 37 additions and 81 deletions
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67
src/mame/drivers/route16.cpp
View File

@ -218,8 +218,8 @@ WRITE8_MEMBER(route16_state::speakres_out2_w)
*************************************/
static ADDRESS_MAP_START( route16_cpu1_map, AS_PROGRAM, 8, route16_state )
AM_RANGE(0x0000, 0x3fff) AM_ROM
/*AM_RANGE(0x3000, 0x3001) AM_NOP protection device */
AM_RANGE(0x0000, 0x2fff) AM_ROM
AM_RANGE(0x3000, 0x3001) AM_READ(route16_prot_read)
AM_RANGE(0x4000, 0x43ff) AM_RAM_WRITE(route16_sharedram_w) AM_SHARE("sharedram")
AM_RANGE(0x4800, 0x4800) AM_READ_PORT("DSW") AM_WRITE(out0_w)
AM_RANGE(0x5000, 0x5000) AM_READ_PORT("P1") AM_WRITE(out1_w)
@ -1049,7 +1049,12 @@ READ8_MEMBER(route16_state::routex_prot_read)
logerror ("cpu '%s' (PC=%08X): unmapped prot read\n", space.device().tag(), space.device().safe_pc());
return 0x00;
}
READ8_MEMBER(route16_state::route16_prot_read)
{
m_protection_data++;
return (1 << ((m_protection_data >> 1) & 7));
}
@ -1059,58 +1064,6 @@ READ8_MEMBER(route16_state::routex_prot_read)
*
*************************************/
DRIVER_INIT_MEMBER(route16_state,route16)
{
uint8_t *ROM = memregion("cpu1")->base();
/* TO DO : Replace these patches with simulation of the protection device */
/* patch the protection */
ROM[0x0105] = 0x00; /* jp nz,$4109 (nirvana) - NOP's in route16c */
ROM[0x0106] = 0x00;
ROM[0x0107] = 0x00;
ROM[0x072a] = 0x00; /* jp nz,$4238 (nirvana) */
ROM[0x072b] = 0x00;
ROM[0x072c] = 0x00;
DRIVER_INIT_CALL(route16c);
}
DRIVER_INIT_MEMBER(route16_state,route16c)
{
uint8_t *ROM = memregion("cpu1")->base();
/* Is this actually a bootleg? some of the protection has
been removed */
/* patch the protection */
ROM[0x00e9] = 0x3a;
ROM[0x0754] = 0xc3;
ROM[0x0755] = 0x63;
ROM[0x0756] = 0x07;
}
DRIVER_INIT_MEMBER(route16_state,route16a)
{
uint8_t *ROM = memregion("cpu1")->base();
/* TO DO : Replace these patches with simulation of the protection device */
/* patch the protection */
ROM[0x00e9] = 0x3a;
ROM[0x0105] = 0x00; /* jp nz,$4109 (nirvana) - NOP's in route16c */
ROM[0x0106] = 0x00;
ROM[0x0107] = 0x00;
ROM[0x0731] = 0x00; /* jp nz,$4238 (nirvana) */
ROM[0x0732] = 0x00;
ROM[0x0733] = 0x00;
ROM[0x0747] = 0xc3;
ROM[0x0748] = 0x56;
ROM[0x0749] = 0x07;
}
@ -1122,9 +1075,9 @@ DRIVER_INIT_MEMBER(route16_state,route16a)
*
*************************************/
GAME( 1981, route16, 0, route16, route16, route16_state, route16, ROT270, "Tehkan / Sun Electronics (Centuri license)", "Route 16 (set 1)", MACHINE_SUPPORTS_SAVE )
GAME( 1981, route16a, route16, route16, route16, route16_state, route16a, ROT270, "Tehkan / Sun Electronics (Centuri license)", "Route 16 (set 2)", MACHINE_SUPPORTS_SAVE )
GAME( 1981, route16c, route16, route16, route16, route16_state, route16c, ROT270, "Tehkan / Sun Electronics (Centuri license)", "Route 16 (set 3, bootleg?)", MACHINE_SUPPORTS_SAVE ) // similar to set 1 but with some protection removed?
GAME( 1981, route16, 0, route16, route16, route16_state, 0, ROT270, "Tehkan / Sun Electronics (Centuri license)", "Route 16 (set 1)", MACHINE_SUPPORTS_SAVE )
GAME( 1981, route16a, route16, route16, route16, route16_state, 0, ROT270, "Tehkan / Sun Electronics (Centuri license)", "Route 16 (set 2)", MACHINE_SUPPORTS_SAVE )
GAME( 1981, route16c, route16, route16, route16, route16_state, 0, ROT270, "Tehkan / Sun Electronics (Centuri license)", "Route 16 (set 3, bootleg?)", MACHINE_SUPPORTS_SAVE ) // similar to set 1 but with some protection removed?
GAME( 1981, route16bl,route16, route16, route16, route16_state, 0, ROT270, "bootleg (Leisure and Allied)", "Route 16 (bootleg)", MACHINE_SUPPORTS_SAVE )
GAME( 1981, routex, route16, routex, route16, route16_state, 0, ROT270, "bootleg", "Route X (bootleg)", MACHINE_SUPPORTS_SAVE )

51
src/mame/includes/route16.h
View File

@ -6,29 +6,19 @@ class route16_state : public driver_device
{
public:
route16_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_sn(*this, "snsnd"),
m_sharedram(*this, "sharedram"),
m_videoram1(*this, "videoram1"),
m_videoram2(*this, "videoram2"),
m_palette(*this, "palette") {}
optional_device<sn76477_device> m_sn;
required_shared_ptr<uint8_t> m_sharedram;
required_shared_ptr<uint8_t> m_videoram1;
required_shared_ptr<uint8_t> m_videoram2;
required_device<palette_device> m_palette;
uint8_t m_ttmahjng_port_select;
int m_speakres_vrx;
uint8_t m_flipscreen;
uint8_t m_palette_1;
uint8_t m_palette_2;
: driver_device(mconfig, type, tag)
, m_sn(*this, "snsnd")
, m_sharedram(*this, "sharedram")
, m_videoram1(*this, "videoram1")
, m_videoram2(*this, "videoram2")
, m_palette(*this, "palette")
, m_protection_data(0)
{}
DECLARE_WRITE8_MEMBER(out0_w);
DECLARE_WRITE8_MEMBER(out1_w);
DECLARE_WRITE8_MEMBER(route16_sharedram_w);
DECLARE_READ8_MEMBER(route16_prot_read);
DECLARE_READ8_MEMBER(routex_prot_read);
DECLARE_WRITE8_MEMBER(ttmahjng_input_port_matrix_w);
DECLARE_READ8_MEMBER(ttmahjng_p1_matrix_r);
@ -36,14 +26,27 @@ public:
DECLARE_READ8_MEMBER(speakres_in3_r);
DECLARE_WRITE8_MEMBER(speakres_out2_w);
DECLARE_WRITE8_MEMBER(stratvox_sn76477_w);
DECLARE_DRIVER_INIT(route16);
DECLARE_DRIVER_INIT(route16a);
DECLARE_DRIVER_INIT(route16c);
DECLARE_MACHINE_START(speakres);
DECLARE_MACHINE_START(ttmahjng);
virtual void video_start() override;
uint32_t screen_update_route16(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
uint32_t screen_update_ttmahjng(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
private:
optional_device<sn76477_device> m_sn;
required_shared_ptr<uint8_t> m_sharedram;
required_shared_ptr<uint8_t> m_videoram1;
required_shared_ptr<uint8_t> m_videoram2;
required_device<palette_device> m_palette;
uint8_t m_protection_data;
uint8_t m_ttmahjng_port_select;
int m_speakres_vrx;
uint8_t m_flipscreen;
uint8_t m_palette_1;
uint8_t m_palette_2;
virtual void video_start() override;
};