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Issue with Wonder League '96 fixed. The MCU writes the data to +0x200 from the base ram. Both games now correctly run MCU code.

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This commit is contained in:
Brian Troha 2010-12-30 22:54:09 +00:00
parent c88f831adc
commit de22e0eeea
1 changed files with 11 additions and 20 deletions
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31
src/mame/drivers/tumbleb.c
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@ -889,6 +889,7 @@ static READ8_HANDLER( prot_io_r )
} }
static UINT8 semicom_prot_offset = 0x00; static UINT8 semicom_prot_offset = 0x00;
static UINT16 protbase = 0x0000;
// probably not endian safe // probably not endian safe
static WRITE8_HANDLER( prot_io_w ) static WRITE8_HANDLER( prot_io_w )
@ -899,17 +900,19 @@ static WRITE8_HANDLER( prot_io_w )
{ {
case 0x00: case 0x00:
{ {
UINT16 word = state->mainram[(0x0000/2) + semicom_prot_offset]; UINT16 word = state->mainram[(protbase/2) + semicom_prot_offset];
word = (word & 0xff00) | (data << 0); word = (word & 0xff00) | (data << 0);
state->mainram[(0x0000/2) + semicom_prot_offset] = word; state->mainram[(protbase/2) + semicom_prot_offset] = word;
break; break;
} }
case 0x01: case 0x01:
{ {
UINT16 word = state->mainram[(0x0000/2) + semicom_prot_offset]; UINT16 word = state->mainram[(protbase/2) + semicom_prot_offset];
word = (word & 0x00ff) | (data << 8); word = (word & 0x00ff) | (data << 8);
state->mainram[(0x0000/2) + semicom_prot_offset] = word; state->mainram[(protbase/2) + semicom_prot_offset] = word;
break; break;
} }
@ -3208,14 +3211,6 @@ ROM_START( wondl96 )
ROM_REGION( 0x10000, "protection", 0 ) /* Intel 87C52 MCU Code */ ROM_REGION( 0x10000, "protection", 0 ) /* Intel 87C52 MCU Code */
ROM_LOAD( "87c52.mcu", 0x00000, 0x2000, CRC(6f4c659a) SHA1(7a1453531d9ceb37af21b96becfa9b06bff0a528) ) /* decapped */ ROM_LOAD( "87c52.mcu", 0x00000, 0x2000, CRC(6f4c659a) SHA1(7a1453531d9ceb37af21b96becfa9b06bff0a528) ) /* decapped */
/*
For some reason the MCU doesn't drop right in. We still need the data below to get it to work. Why?
*/
ROM_REGION16_BE( 0x400, "user1", ROMREGION_ERASE00 ) /* Data from Shared RAM */
/* this is not a real rom but instead the data extracted from shared ram, the MCU puts it there */
ROM_LOAD16_WORD( "protdata.bin", 0x00200, 0x200 , CRC(d7578b1e) SHA1(b674005a5e46c602086b596be0358040cc175131) )
ROM_REGION( 0x040000, "oki", 0 ) /* Samples */ ROM_REGION( 0x040000, "oki", 0 ) /* Samples */
ROM_LOAD( "uc1.bin", 0x00000, 0x40000, CRC(0e7913e6) SHA1(9a44bd7ca4030627a26010583216ce1c8032ee1b) ) ROM_LOAD( "uc1.bin", 0x00000, 0x40000, CRC(0e7913e6) SHA1(9a44bd7ca4030627a26010583216ce1c8032ee1b) )
@ -3753,18 +3748,14 @@ static DRIVER_INIT( wlstar )
/* slightly different banking */ /* slightly different banking */
memory_install_write16_handler(cputag_get_address_space(machine, "maincpu", ADDRESS_SPACE_PROGRAM), 0x100002, 0x100003, 0, 0, wlstar_tilebank_w); memory_install_write16_handler(cputag_get_address_space(machine, "maincpu", ADDRESS_SPACE_PROGRAM), 0x100002, 0x100003, 0, 0, wlstar_tilebank_w);
}
/****************** protbase = 0x0000;
Wonder League '96 still needs the protdata.bin and copy routine to work?? }
******************/
static DRIVER_INIT( wondl96 ) static DRIVER_INIT( wondl96 )
{ {
DRIVER_INIT_CALL(htchctch); DRIVER_INIT_CALL( wlstar );
protbase = 0x0200;
/* slightly different banking */
memory_install_write16_handler(cputag_get_address_space(machine, "maincpu", ADDRESS_SPACE_PROGRAM), 0x100002, 0x100003, 0, 0, wlstar_tilebank_w);
} }
static DRIVER_INIT ( dquizgo ) static DRIVER_INIT ( dquizgo )