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firebeat: temporary hack to switch display lists correctly for the ParaParaParadise games (nw)

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This commit is contained in:
R. Belmont 2012-11-18 15:15:04 +00:00
parent d0282eec2a
commit 004b5f52fa
1 changed files with 26 additions and 2 deletions
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28
src/mame/drivers/firebeat.c
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@ -126,7 +126,7 @@
at any point during the frame. It's mainly used to call display lists, which is where
the display list addresses come from. Some games use it to send other commands, so
it appears to be a 4-dword FIFO or something along those lines.
*/
*/
#include "emu.h"
#include "cpu/m68000/m68000.h"
@ -729,7 +729,29 @@ static void GCU_w(running_machine &machine, int chip, UINT32 offset, UINT32 data
break;
}
case 0x40: /* ??? */
case 0x40: /* framebuffer config */
// HACK: switch display lists at the right times for the ParaParaParadise games until we
// do the video emulation properly
if (mame_strnicmp(machine.system().name, "pp", 2) == 0)
{
switch (data)
{
case 0x00080000: // post
state->m_layer = 0;
break;
case 0x00008400: // startup tests
if (state->m_layer != 2)
{
state->m_layer = 1;
}
break;
case 0x00068400: // game & svc menu
state->m_layer = 2;
break;
}
}
break;
//case 0x44: /* ??? */
@ -2014,6 +2036,8 @@ MACHINE_RESET_MEMBER(firebeat_state,firebeat)
sound[i] = m_flash[1]->read(i);
sound[i+0x200000] = m_flash[2]->read(i);
}
m_layer = 0;
}
const rtc65271_interface firebeat_rtc =