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allow netmerc to boot

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there still seems to be something uninitialized or some memory corruption as quite often it will crash instead of launching, but if it does launch you can get a title screen and attract demo with some 3d.  roms pass in rom test now too.

3d is quite broken, lots of polys being stretched in weird ways and no 3d palette.
This commit is contained in:
David Haywood 2016-10-02 14:17:52 +01:00
parent 8d1e98fa34
commit 60f3d9367a
1 changed files with 6 additions and 4 deletions
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10
src/mame/drivers/model1.cpp
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@ -686,10 +686,11 @@ READ16_MEMBER(model1_state::fifoin_status_r)
WRITE16_MEMBER(model1_state::bank_w)
{
if(ACCESSING_BITS_0_7) {
switch(data & 0xf) {
case 0x1: // 100000-1fffff data roms banking
membank("bank1")->set_base(memregion("maincpu")->base() + 0x1000000 + 0x100000*((data >> 4) & 0xf));
membank("bank1")->set_base(memregion("maincpu")->base() + 0x1000000 + 0x100000*((data >> 4) & 0x7)); // netmerc has bit 0x80 set when banking, probably not a bank bit.
logerror("BANK %x\n", 0x1000000 + 0x100000*((data >> 4) & 0xf));
break;
case 0x2: // 200000-2fffff data roms banking (unused, all known games have only one bank)
@ -756,8 +757,8 @@ MACHINE_RESET_MEMBER(model1_state,model1)
{
membank("bank1")->set_base(memregion("maincpu")->base() + 0x1000000);
irq_init();
tgp_reset(!strcmp(machine().system().name, "swa") || !strcmp(machine().system().name, "wingwar") || !strcmp(machine().system().name, "wingwaru") || !strcmp(machine().system().name, "wingwarj") || !strcmp(machine().system().name, "wingwar360"));
if (!strcmp(machine().system().name, "swa"))
tgp_reset(!strcmp(machine().system().name, "swa") || !strcmp(machine().system().name, "wingwar") || !strcmp(machine().system().name, "wingwaru") || !strcmp(machine().system().name, "wingwarj") || !strcmp(machine().system().name, "wingwar360") || !strcmp(machine().system().name, "netmerc"));
if (!strcmp(machine().system().name, "swa") )
{
m_sound_irq = 0;
}
@ -931,7 +932,7 @@ static ADDRESS_MAP_START( model1_mem, AS_PROGRAM, 16, model1_state )
AM_RANGE(0xe00004, 0xe00005) AM_WRITE(bank_w)
AM_RANGE(0xe0000c, 0xe0000f) AM_WRITENOP
AM_RANGE(0xfc0000, 0xffffff) AM_ROM
AM_RANGE(0xf80000, 0xffffff) AM_ROM
ADDRESS_MAP_END
static ADDRESS_MAP_START( model1_io, AS_IO, 16, model1_state )
@ -1556,6 +1557,7 @@ ROM_START( netmerc )
ROM_REGION( 0x2000000, "maincpu", ROMREGION_ERASEFF ) /* v60 code */
ROM_LOAD( "epr-18120.ic5", 0xf80000, 0x80000, CRC(de489762) SHA1(4e935f11e844489c5b5dc06439dc7902c4fddc9f) ) /* Rom board with Sega ID# ??? */
ROM_RELOAD( 0x000000, 0x80000 )
ROM_LOAD16_BYTE( "epr-18122.ic6", 0x1000000, 0x80000, CRC(10581ab3) SHA1(e3f5ec4ce14a1e1a1134c8b516c371b7655f3544) )
ROM_LOAD16_BYTE( "epr-18123.ic7", 0x1000001, 0x80000, CRC(27e0d848) SHA1(117f99efd0643ba92b3340171d8952b6a1a568d4) )