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cham24.cpp: don't crash on soft reset (nw)

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This commit is contained in:
angelosa 2017-04-26 00:39:03 +02:00
parent 33ff255200
commit eaf2d21fc5
1 changed files with 7 additions and 7 deletions
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14
src/mame/drivers/cham24.cpp
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@ -251,10 +251,6 @@ static INPUT_PORTS_START( cham24 )
PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(2)
INPUT_PORTS_END
void cham24_state::machine_reset()
{
}
PALETTE_INIT_MEMBER(cham24_state, cham24)
{
m_ppu->init_palette(palette, 0);
@ -278,6 +274,12 @@ uint32_t cham24_state::screen_update_cham24(screen_device &screen, bitmap_ind16
void cham24_state::machine_start()
{
/* need nametable ram, though. I doubt this uses more than 2k, but it starts up configured for 4 */
m_nt_ram = std::make_unique<uint8_t[]>(0x1000);
}
void cham24_state::machine_reset()
{
/* switch PRG rom */
uint8_t* dst = memregion("maincpu")->base();
@ -289,9 +291,7 @@ void cham24_state::machine_start()
/* uses 8K swapping, all ROM!*/
m_ppu->space(AS_PROGRAM).install_read_bank(0x0000, 0x1fff, "bank1");
membank("bank1")->set_base(memregion("gfx1")->base());
/* need nametable ram, though. I doubt this uses more than 2k, but it starts up configured for 4 */
m_nt_ram = std::make_unique<uint8_t[]>(0x1000);
m_nt_page[0] = m_nt_ram.get();
m_nt_page[1] = m_nt_ram.get() + 0x400;
m_nt_page[2] = m_nt_ram.get() + 0x800;