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beathead: removed speedup hack (nw)

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This commit is contained in:
hap 2017-04-11 04:14:05 +02:00
parent 389ed84d51
commit ce2c96c20a
2 changed files with 10 additions and 67 deletions
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56
src/mame/drivers/beathead.cpp
View File

@ -121,7 +121,6 @@ TIMER_DEVICE_CALLBACK_MEMBER(beathead_state::scanline_callback)
int scanline = param;
/* update the video */
// m_screen->update_now();
m_screen->update_partial(m_screen->vpos());
/* on scanline zero, clear any halt condition */
@ -425,63 +424,10 @@ ROM_END
/*************************************
*
* Driver speedups
*
*************************************/
/*
In-game hotspot @ 0180F8D8
*/
READ32_MEMBER( beathead_state::speedup_r )
{
uint32_t result = *m_speedup_data;
if ((space.device().safe_pcbase() & 0xfffff) == 0x006f0 && result == space.device().state().state_int(ASAP_R3))
space.device().execute().spin_until_interrupt();
return result;
}
READ32_MEMBER( beathead_state::movie_speedup_r )
{
int result = *m_movie_speedup_data;
if ((space.device().safe_pcbase() & 0xfffff) == 0x00a88 && (space.device().state().state_int(ASAP_R28) & 0xfffff) == 0x397c0 &&
m_movie_speedup_data[4] == space.device().state().state_int(ASAP_R1))
{
uint32_t temp = (int16_t)result + m_movie_speedup_data[4] * 262;
if (temp - (uint32_t)space.device().state().state_int(ASAP_R15) < (uint32_t)space.device().state().state_int(ASAP_R23))
space.device().execute().spin_until_interrupt();
}
return result;
}
/*************************************
*
* Driver initialization
*
*************************************/
DRIVER_INIT_MEMBER(beathead_state,beathead)
{
/* prepare the speedups */
m_maincpu->space(AS_PROGRAM).install_read_handler(0x00000ae8, 0x00000aeb, read32_delegate(FUNC(beathead_state::speedup_r), this));
m_maincpu->space(AS_PROGRAM).install_read_handler(0x00000804, 0x00000807, read32_delegate(FUNC(beathead_state::movie_speedup_r), this));
m_speedup_data = m_ram_base + 0xae8/4;
m_movie_speedup_data = m_ram_base + 0x804/4;
}
/*************************************
*
* Game driver(s)
*
*************************************/
GAME( 1993, beathead, 0, beathead, beathead, beathead_state, beathead, ROT0, "Atari Games", "BeatHead (prototype)", 0 )
GAME( 1993, beathead, 0, beathead, beathead, driver_device, 0, ROT0, "Atari Games", "BeatHead (prototype)", 0 )

21
src/mame/includes/beathead.h
View File

@ -15,14 +15,15 @@ class beathead_state : public atarigen_state
public:
beathead_state(const machine_config &mconfig, device_type type, const char *tag)
: atarigen_state(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_jsa(*this, "jsa"),
m_nvram(*this, "nvram"),
m_videoram(*this, "videoram"),
m_vram_bulk_latch(*this, "vram_bulk_latch"),
m_palette_select(*this, "palette_select"),
m_ram_base(*this, "ram_base"),
m_rom_base(*this, "rom_base") { }
m_maincpu(*this, "maincpu"),
m_jsa(*this, "jsa"),
m_nvram(*this, "nvram"),
m_videoram(*this, "videoram"),
m_vram_bulk_latch(*this, "vram_bulk_latch"),
m_palette_select(*this, "palette_select"),
m_ram_base(*this, "ram_base"),
m_rom_base(*this, "rom_base")
{ }
virtual void machine_reset() override;
@ -58,9 +59,6 @@ public:
uint8_t m_eeprom_enabled;
uint32_t * m_speedup_data;
uint32_t * m_movie_speedup_data;
// in drivers/beathead.c
virtual void update_interrupts() override;
DECLARE_WRITE32_MEMBER( interrupt_control_w );
@ -80,6 +78,5 @@ public:
DECLARE_WRITE32_MEMBER( finescroll_w );
DECLARE_READ32_MEMBER( hsync_ram_r );
DECLARE_WRITE32_MEMBER( hsync_ram_w );
DECLARE_DRIVER_INIT(beathead);
TIMER_DEVICE_CALLBACK_MEMBER(scanline_callback);
};