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legionna.cpp: fixed regression in background tilemap colors for Godzilla (uses DMA mode 4 like Denjin Makai) [Angelo Salese]

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This commit is contained in:
angelosa 2018-04-15 01:21:07 +02:00
parent afa6aa8b58
commit 66ebaeb41d
5 changed files with 36 additions and 24 deletions
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35
src/mame/drivers/legionna.cpp
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@ -104,7 +104,7 @@ READ8_MEMBER(legionna_state::denjinmk_sound_comms_r)
return m_seibu_sound->main_r(space, (offset >> 1) & 7);
}
void legionna_state::legionna_cop_mem(address_map &map)
void legionna_state::legionna_cop_map(address_map &map)
{
map(0x100400, 0x100401).w(m_raiden2cop, FUNC(raiden2cop_device::cop_sprite_dma_param_lo_w)); // grainbow
map(0x100402, 0x100403).w(m_raiden2cop, FUNC(raiden2cop_device::cop_sprite_dma_param_hi_w)); // grainbow
@ -183,7 +183,7 @@ void legionna_state::legionna_cop_mem(address_map &map)
void legionna_state::legionna_map(address_map &map)
{
legionna_cop_mem(map);
legionna_cop_map(map);
map(0x000000, 0x07ffff).rom();
map(0x100000, 0x1003ff).ram();
map(0x100470, 0x100471).nopw(); // toggles 0x2000 / 0x0000, tile bank on some games
@ -213,7 +213,7 @@ void legionna_state::legionna_map(address_map &map)
void legionna_state::heatbrl_map(address_map &map)
{
legionna_cop_mem(map);
legionna_cop_map(map);
map(0x000000, 0x07ffff).rom();
map(0x100000, 0x1003ff).ram();
map(0x100470, 0x100471).w(this, FUNC(legionna_state::heatbrl_setgfxbank));
@ -241,7 +241,7 @@ void legionna_state::heatbrl_map(address_map &map)
void legionna_state::godzilla_map(address_map &map)
{
legionna_cop_mem(map);
legionna_cop_map(map);
map(0x000000, 0x07ffff).rom();
map(0x100000, 0x1003ff).ram();
map(0x100470, 0x100471).w(this, FUNC(legionna_state::denjinmk_setgfxbank));
@ -270,12 +270,21 @@ void legionna_state::godzilla_map(address_map &map)
map(0x106800, 0x106fff).ram();
map(0x107000, 0x107fff).ram(); /*Ani-DSP ram*/
map(0x108000, 0x11ffff).ram();
// map(0xff0000, 0xffffff).ram(); // game reads here at Biollante stage in story mode (i.e. when Super X starts shooting).
// Development leftover/coding bug? Game doesn't seem to care at all anyway.
}
// Denjin Makai: Looks like they specifically swapped address line A1 in this range?
// Initially thought it was a palette DMA mode 4 but it doesn't apply for Godzilla, causing color bugs in the background tilemap.
WRITE16_MEMBER(legionna_state::palette_swap_w)
{
offset^=1;
COMBINE_DATA(&m_swappal[offset]);
}
void legionna_state::denjinmk_map(address_map &map)
{
legionna_cop_mem(map);
legionna_cop_map(map);
map(0x000000, 0x0fffff).rom();
map(0x100000, 0x1003ff).ram();
map(0x100470, 0x100471).w(this, FUNC(legionna_state::denjinmk_setgfxbank));
@ -296,7 +305,7 @@ void legionna_state::denjinmk_map(address_map &map)
map(0x101800, 0x101fff).ram(); // .w(this, FUNC(legionna_state::legionna_foreground_w).share("fore_data");
map(0x102000, 0x1027ff).ram(); // .w(this, FUNC(legionna_state::legionna_midground_w).share("mid_data");
map(0x102800, 0x103fff).ram(); // .w(this, FUNC(legionna_state::legionna_text_w).share("textram");
map(0x104000, 0x104fff).ram();
map(0x104000, 0x104fff).ram().w(this, FUNC(legionna_state::palette_swap_w)).share("swappal");
map(0x105000, 0x105fff).ram().share("spriteram");
map(0x106000, 0x107fff).ram();
map(0x108000, 0x11dfff).ram();
@ -306,7 +315,7 @@ void legionna_state::denjinmk_map(address_map &map)
void legionna_state::grainbow_map(address_map &map)
{
legionna_cop_mem(map);
legionna_cop_map(map);
map(0x000000, 0x0fffff).rom();
map(0x100000, 0x1003ff).ram();
map(0x100480, 0x100487).w(this, FUNC(legionna_state::grainbow_layer_config_w)); // probably a COP feature
@ -336,9 +345,9 @@ void legionna_state::grainbow_map(address_map &map)
map(0x108000, 0x11ffff).ram();
}
void legionna_state::cupsoc_mem(address_map &map)
void legionna_state::cupsoc_map(address_map &map)
{
legionna_cop_mem(map);
legionna_cop_map(map);
map(0x000000, 0x0fffff).rom();
map(0x100000, 0x1003ff).ram();
map(0x100600, 0x10064f).rw(m_crtc, FUNC(seibu_crtc_device::read), FUNC(seibu_crtc_device::write));
@ -370,9 +379,9 @@ void legionna_state::cupsoc_mem(address_map &map)
map(0x11e000, 0x11ffff).ram(); /*Stack Ram*/
}
void legionna_state::cupsocs_mem(address_map &map)
void legionna_state::cupsocs_map(address_map &map)
{
legionna_cop_mem(map);
legionna_cop_map(map);
map(0x000000, 0x0fffff).rom();
map(0x100000, 0x1003ff).ram();
map(0x100600, 0x10067f).lrw16("crtc_rw",
@ -1468,7 +1477,7 @@ MACHINE_CONFIG_START(legionna_state::cupsoc)
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", M68000,20000000/2)
MCFG_CPU_PROGRAM_MAP(cupsoc_mem)
MCFG_CPU_PROGRAM_MAP(cupsoc_map)
MCFG_CPU_VBLANK_INT_DRIVER("screen", legionna_state, irq4_line_hold)/* VBL */
MCFG_CPU_ADD("audiocpu", Z80, 14318180/4)
@ -1519,7 +1528,7 @@ MACHINE_CONFIG_END
MACHINE_CONFIG_START(legionna_state::cupsocs)
cupsoc(config);
MCFG_CPU_MODIFY("maincpu")
MCFG_CPU_PROGRAM_MAP(cupsocs_mem)
MCFG_CPU_PROGRAM_MAP(cupsocs_map)
MACHINE_CONFIG_END
/***************************************************************************

9
src/mame/includes/legionna.h
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@ -13,6 +13,7 @@ public:
legionna_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag),
m_spriteram(*this, "spriteram"),
m_swappal(*this, "swappal"),
m_layer_disable(0),
m_back_gfx_bank(0),
m_fore_gfx_bank(0),
@ -30,6 +31,7 @@ public:
}
required_shared_ptr<uint16_t> m_spriteram;
optional_shared_ptr<uint16_t> m_swappal;
std::unique_ptr<uint16_t[]> m_back_data;
std::unique_ptr<uint16_t[]> m_fore_data;
std::unique_ptr<uint16_t[]> m_mid_data;
@ -64,6 +66,7 @@ public:
DECLARE_WRITE16_MEMBER(denjinmk_setgfxbank);
DECLARE_WRITE16_MEMBER(heatbrl_setgfxbank);
DECLARE_WRITE16_MEMBER(grainbow_layer_config_w);
DECLARE_WRITE16_MEMBER(palette_swap_w);
DECLARE_DRIVER_INIT(legiongfx);
DECLARE_DRIVER_INIT(cupsoc_debug);
@ -106,12 +109,12 @@ public:
void legionna(machine_config &config);
void godzilla(machine_config &config);
void denjinmk(machine_config &config);
void cupsoc_mem(address_map &map);
void cupsocs_mem(address_map &map);
void cupsoc_map(address_map &map);
void cupsocs_map(address_map &map);
void denjinmk_map(address_map &map);
void godzilla_map(address_map &map);
void grainbow_map(address_map &map);
void heatbrl_map(address_map &map);
void legionna_cop_mem(address_map &map);
void legionna_cop_map(address_map &map);
void legionna_map(address_map &map);
};

2
src/mame/machine/seibucop/seibucop.cpp
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@ -844,7 +844,7 @@ WRITE16_MEMBER(raiden2cop_device::cop_dma_trigger_w)
/* Number Conversion */
void raiden2cop_device::bcd_update()
{
//int digits = 1 << cop_itoa_mode*2;
//int digits = 1 << cop_itoa_mode*2;
uint32_t val = cop_itoa;
//if(digits > 9)

10
src/mame/machine/seibucop/seibucop_dma.hxx
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@ -81,12 +81,12 @@ void raiden2cop_device::dma_palette_brightness()
pal_val |= ((r + rt) & 0x1f);
}
}
else if (pal_brightness_mode == 4) //Denjin Makai
else if (pal_brightness_mode == 4) //Denjin Makai & Godzilla
{
// mode 4 swaps endianness between two words, likely that DMA works in dword steps and bit 0.
// TODO: check on V30 flavour
uint16_t targetpaldata = m_host_space->read_word((src + (cop_dma_adr_rel * 0x400)) ^ 2);
uint16_t paldata = m_host_space->read_word(src ^ 2);
// In mode 4 Denjin Makai seems to swaps endianness between two words, likely that DMA works in dword steps and bit 0.
// Godzilla contradicts with this tho, so maybe it's just an address swap for the palette range ...
uint16_t targetpaldata = m_host_space->read_word((src + (cop_dma_adr_rel * 0x400)));
uint16_t paldata = m_host_space->read_word(src);
bt = (targetpaldata & 0x7c00) >> 10;
b = (paldata & 0x7c00) >> 10;

2
src/mame/video/legionna.cpp
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@ -60,7 +60,7 @@ WRITE16_MEMBER(legionna_state::tile_scroll_base_w)
if(offset == 7)
m_text_layer->set_scrolldy(0x1ef - data,0x1ef - data);
printf("%02x %04x\n",offset,data);
//printf("%02x %04x\n",offset,data);
}
WRITE16_MEMBER(legionna_state::heatbrl_setgfxbank)