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(MESS) gamate : reinstated etabeta's no-cart fix. (nw)

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This commit is contained in:
Robbbert 2015-03-13 14:51:27 +11:00
parent 053e0b4f4b
commit 6169bcbb8f
1 changed files with 8 additions and 5 deletions
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13
src/mess/drivers/gamate.c
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@ -78,6 +78,7 @@ private:
emu_timer *timer1;
emu_timer *timer2;
UINT8 bank_multi;
UINT8 *m_cart_ptr;
};
WRITE8_MEMBER( gamate_state::gamate_cart_protection_w )
@ -91,7 +92,7 @@ WRITE8_MEMBER( gamate_state::gamate_cart_protection_w )
card_protection.bit_shifter++;
if (card_protection.bit_shifter>=8)
{
card_protection.cartridge_byte=m_cart->get_rom_base()[card_protection.address++];
card_protection.cartridge_byte=m_cart_ptr[card_protection.address++];
card_protection.bit_shifter=0;
}
break;
@ -103,7 +104,7 @@ READ8_MEMBER( gamate_state::gamate_cart_protection_r )
UINT8 ret=1;
if (card_protection.bit_shifter==7 && card_protection.unprotected)
{
ret=m_cart->get_rom_base()[bank_multi*0x4000];
ret=m_cart_ptr[bank_multi*0x4000];
}
else
{
@ -135,7 +136,7 @@ WRITE8_MEMBER( gamate_state::protection_reset )
// writes 0x20
card_protection.address=0x6005-0x6001;
card_protection.bit_shifter=0;
card_protection.cartridge_byte=m_cart->get_rom_base()[card_protection.address++];//m_cart_rom[card_protection.address++];
card_protection.cartridge_byte=m_cart_ptr[card_protection.address++]; //m_cart_rom[card_protection.address++];
card_protection.failed=false;
card_protection.unprotected=false;
}
@ -183,12 +184,12 @@ WRITE8_MEMBER( gamate_state::gamate_video_w )
WRITE8_MEMBER( gamate_state::cart_bankswitchmulti_w )
{
bank_multi=data;
membank("bankmulti")->set_base(m_cart->get_rom_base()+0x4000*data+1);
membank("bankmulti")->set_base(m_cart_ptr+0x4000*data+1);
}
WRITE8_MEMBER( gamate_state::cart_bankswitch_w )
{
membank("bank")->set_base(m_cart->get_rom_base()+0x4000*data);
membank("bank")->set_base(m_cart_ptr+0x4000*data);
}
READ8_MEMBER( gamate_state::gamate_video_r )
@ -314,9 +315,11 @@ DRIVER_INIT_MEMBER(gamate_state,gamate)
void gamate_state::machine_start()
{
m_cart_ptr = memregion("maincpu")->base() + 0x6000;
if (m_cart->exists())
{
// m_maincpu->space(AS_PROGRAM).install_read_handler(0x6000, 0x6000, READ8_DELEGATE(gamate_state, gamate_cart_protection_r));
m_cart_ptr = m_cart->get_rom_base();
membank("bankmulti")->set_base(m_cart->get_rom_base()+1);
membank("bank")->set_base(m_cart->get_rom_base()+0x4000); // bankswitched games in reality no offset
}