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- Fixes hunchbkd0122red

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Note: Protection still not understood in detail. Driver only contains "hacks" as workarounds. Consequently, more protection issues are likely to surface in the future.
This commit is contained in:
Couriersud 2007-12-24 22:10:04 +00:00
parent dd703b9d81
commit e613da3c3b
1 changed files with 23 additions and 2 deletions
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25
src/mame/drivers/dkong.c
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@ -247,7 +247,15 @@ Changes:
/*************************************
*
* prototypes
* Defines
*
*************************************/
#define DEBUG_PROTECTION (0)
/*************************************
*
* Prototypes
*
*************************************/
@ -496,11 +504,20 @@ static READ8_HANDLER( dkong_in2_r )
static READ8_HANDLER( hunchbkd_mirror_r )
{
return program_read_byte(0x1000+offset);
int data = program_read_byte(0x1000+offset);
#if DEBUG_PROTECTION
if (offset >= 0xc04 && offset < 0xc14)
logerror("prot read %x, %x (%x)\n", offset, data, activecpu_get_pc());
#endif
return data;
}
static WRITE8_HANDLER( hunchbkd_mirror_w )
{
#if DEBUG_PROTECTION
if (offset >= 0xc04 && offset < 0xc14)
logerror("prot write %x\n", data);
#endif
program_write_byte(0x1000+offset,data);
}
@ -542,12 +559,16 @@ static WRITE8_HANDLER( hunchbkd_data_w )
static READ8_HANDLER( hunchbkd_port0_r )
{
dkong_state *state = Machine->driver_data;
#if DEBUG_PROTECTION
logerror("port 0 : pc = %4x\n",activecpu_get_pc());
#endif
switch (activecpu_get_pc())
{
case 0x00e9: return 0xff;
case 0x0114: return 0xfb;
case 0x209b: return state->hunchloopback; /* this at least prevents reset after super bonus */
}
return 0;