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sneaky, must also read back the cart region here when the reset command is issued, also applied same logic to our other sims. (nw)

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This commit is contained in:
David Haywood 2013-08-05 03:56:59 +00:00
parent 532fc17491
commit 2950ebcee4
2 changed files with 45 additions and 11 deletions
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2
src/mame/includes/pgm.h
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@ -254,6 +254,7 @@ public:
DECLARE_WRITE16_MEMBER( pgm_arm7_type1_sim_w );
DECLARE_READ16_MEMBER( pgm_arm7_type1_sim_protram_r );
DECLARE_READ16_MEMBER( pstars_arm7_type1_sim_protram_r );
int m_simregion;
/* puzzli2 protection internal state stuff */
int stage;
@ -273,6 +274,7 @@ public:
int hack_47_value;
int hack_31_table_offset;
int hack_31_table_offset2;
int p2_31_retcounter;
UINT8 coverage[256]; // coverage is how much of the table we've managed to verify using known facts about the table structure

54
src/mame/machine/pgmprot_igs027a_type1.c
View File

@ -559,8 +559,9 @@ void pgm_arm_type1_state::command_handler_ddp3(int pc)
case 0x99: // reset?
m_simregion = 0;//ioport("Region")->read();
m_valuekey = 0x100;
m_valueresponse = 0x00880000;
m_valueresponse = 0x00880000 | m_simregion << 8;
break;
}
@ -607,6 +608,7 @@ UINT8 puzzli2_level_decode[256] = {
void pgm_arm_type1_state::command_handler_puzzli2(int pc)
{
@ -740,7 +742,8 @@ void pgm_arm_type1_state::command_handler_puzzli2(int pc)
// todo, responses when uploading the startup values are different
printf("%08x: %02x %04x (for z80 address?)\n ",pc, m_ddp3lastcommand, m_value0);
m_valueresponse = 0x00d20000;
m_valueresponse = 0x00d20000 | p2_31_retcounter;
p2_31_retcounter++; // returns 0xc for the first one, 0x19 for the last one
}
}
@ -800,10 +803,11 @@ void pgm_arm_type1_state::command_handler_puzzli2(int pc)
case 0x38: // Reset
printf("%08x: %02x %04x (RESET)\n",pc, m_ddp3lastcommand, m_value0);
m_valueresponse = 0x78<<16;
m_simregion = ioport("Region")->read();
m_valueresponse = 0x780000 | m_simregion<<8; // this must also return the cart region or the game will act in odd ways when inserting a coin on continue, or during the game on later levels
m_valuekey = 0x100;
m_puzzli_54_trigger = 0;
break;
@ -863,6 +867,7 @@ void pgm_arm_type1_state::command_handler_puzzli2(int pc)
command_31_write_type = 1;
m_valueresponse = 0x36<<16;
p2_31_retcounter = 0xc;
break;
case 0x41: // ASIC status?
@ -871,7 +876,8 @@ void pgm_arm_type1_state::command_handler_puzzli2(int pc)
// this command is written after the values used to decrypt the z80 addresses (assumed) are uploaded with command 31
command_31_write_type = 0;
m_valueresponse = 0x74<<16;
//m_valueresponse = 0x74<<16;
m_valueresponse = 0x740061;
break;
case 0x54: // ??
@ -1078,8 +1084,10 @@ void pgm_arm_type1_state::command_handler_py2k2(int pc)
break;
case 0x99: // reset?
m_simregion = ioport("Region")->read();
m_valuekey = 0x100;
m_valueresponse = 0x00880000;
m_valueresponse = 0x00880000 | m_simregion<<8;
break;
}
}
@ -1187,8 +1195,10 @@ void pgm_arm_type1_state::command_handler_pstars(int pc)
switch (m_ddp3lastcommand)
{
case 0x99:
m_simregion = ioport("Region")->read();
m_valuekey = 0x100;
m_valueresponse = 0x880000;
m_valueresponse = 0x00880000 | m_simregion<<8;
break;
case 0xe0:
@ -1306,7 +1316,8 @@ void pgm_arm_type1_state::command_handler_kov(int pc)
break;
case 0x99: // Reset
m_valueresponse = 0x880000;
m_simregion = ioport("Region")->read();
m_valueresponse = 0x880000 | m_simregion<<8;
m_valuekey = 0x100;
break;
@ -1580,8 +1591,10 @@ void pgm_arm_type1_state::command_handler_oldsplus(int pc)
switch (m_ddp3lastcommand)
{
case 0x88:
m_simregion = ioport("Region")->read();
m_valuekey = 0x100;
m_valueresponse = 0x990000;
m_valueresponse = 0x00990000 | m_simregion<<8;
break;
case 0xd0:
@ -1784,7 +1797,7 @@ WRITE16_MEMBER(pgm_arm_type1_state::pgm_arm7_type1_sim_w )
READ16_MEMBER(pgm_arm_type1_state::pgm_arm7_type1_sim_protram_r )
{
if (offset == 4)
return ioport("Region")->read();
return m_simregion;
return 0x0000;
}
@ -2269,8 +2282,27 @@ DRIVER_INIT_MEMBER(pgm_arm_type1_state,puzzli2)
src3[0x17b290 ^1] = 0x42;
src3[0x17b291 ^1] = 0x40;
}
#endif
pgm_puzzli2_decrypt(machine());
{
UINT8 *ROM = (UINT8*)memregion("maincpu")->base();
FILE *fp;
char filename[256];
sprintf(filename,"trojan_%s", machine().system().name);
fp=fopen(filename, "w+b");
if (fp)
{
fwrite(ROM+0x100000, 0x200000, 1, fp);
fclose(fp);
}
}
pgm_puzzli2_decrypt(machine());
#endif
}
DRIVER_INIT_MEMBER(pgm_arm_type1_state,py2k2)