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legionna.cpp: notes for grainbow (nw)

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This commit is contained in:
Angelo Salese 2019-07-24 16:26:11 +02:00
parent 8b733c17bb
commit 06714748b3
2 changed files with 17 additions and 9 deletions
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25
src/mame/drivers/legionna.cpp
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@ -105,12 +105,17 @@ u8 legionna_state::denjinmk_sound_comms_r(offs_t offset)
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
map(0x10040c, 0x10040d).w(m_raiden2cop, FUNC(raiden2cop_device::cop_sprite_dma_size_w)); // grainbow
map(0x100410, 0x100411).w(m_raiden2cop, FUNC(raiden2cop_device::cop_sprite_dma_inc_w)); // grainbow
map(0x100412, 0x100413).w(m_raiden2cop, FUNC(raiden2cop_device::cop_sprite_dma_src_hi_w)); // grainbow
map(0x100414, 0x100415).w(m_raiden2cop, FUNC(raiden2cop_device::cop_sprite_dma_src_lo_w)); // grainbow
// grainbow sprite DMA
// the three NOP writes are initied before every sprite DMA
map(0x100400, 0x100401).w(m_raiden2cop, FUNC(raiden2cop_device::cop_sprite_dma_param_lo_w));
map(0x100402, 0x100403).w(m_raiden2cop, FUNC(raiden2cop_device::cop_sprite_dma_param_hi_w));
map(0x100404, 0x100405).nopw(); // $0002
map(0x10040a, 0x10040b).nopw(); // $ffff
map(0x10040c, 0x10040d).w(m_raiden2cop, FUNC(raiden2cop_device::cop_sprite_dma_size_w));
map(0x10040e, 0x10040f).nopw(); // $0023
map(0x100410, 0x100411).w(m_raiden2cop, FUNC(raiden2cop_device::cop_sprite_dma_inc_w));
map(0x100412, 0x100413).w(m_raiden2cop, FUNC(raiden2cop_device::cop_sprite_dma_src_hi_w));
map(0x100414, 0x100415).w(m_raiden2cop, FUNC(raiden2cop_device::cop_sprite_dma_src_lo_w));
map(0x10041c, 0x10041d).w(m_raiden2cop, FUNC(raiden2cop_device::cop_angle_target_w)); // angle target (for 0x6200 COP macro)
map(0x10041e, 0x10041f).w(m_raiden2cop, FUNC(raiden2cop_device::cop_angle_step_w)); // angle step (for 0x6200 COP macro)
@ -153,6 +158,8 @@ void legionna_state::legionna_cop_map(address_map &map)
map(0x10047c, 0x10047d).w(m_raiden2cop, FUNC(raiden2cop_device::cop_dma_dst_w));
map(0x10047e, 0x10047f).rw(m_raiden2cop, FUNC(raiden2cop_device::cop_dma_mode_r), FUNC(raiden2cop_device::cop_dma_mode_w));
// map(0x100488, 0x100489).nopw(); grainbow $0010
// map(0x10048a, 0x10048b).nopw(); grainbow $0000
map(0x10048c, 0x10048d).w(m_raiden2cop, FUNC(raiden2cop_device::cop_sprite_dma_abs_y_w)); // 68k
map(0x10048e, 0x10048f).w(m_raiden2cop, FUNC(raiden2cop_device::cop_sprite_dma_abs_x_w)); // 68k
@ -780,9 +787,9 @@ static INPUT_PORTS_START( grainbow )
PORT_DIPNAME( 0x0100, 0x0100, DEF_STR( Flip_Screen ) )
PORT_DIPSETTING( 0x0100, DEF_STR( Off ) )
PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
PORT_DIPNAME( 0x0200, 0x0200, DEF_STR( Unknown ) ) // Dead code?
PORT_DIPSETTING( 0x0200, DEF_STR( Off ) )
PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
PORT_DIPNAME( 0x0200, 0x0200, DEF_STR( Demo_Sounds ) )
PORT_DIPSETTING( 0x0000, DEF_STR( No ) )
PORT_DIPSETTING( 0x0200, DEF_STR( Yes ) )
PORT_DIPNAME( 0x0400, 0x0400, DEF_STR( Unknown ) )
PORT_DIPSETTING( 0x0400, DEF_STR( Off ) )
PORT_DIPSETTING( 0x0000, DEF_STR( On ) )

1
src/mame/machine/seibucop/seibucop_cmd.hxx
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@ -532,6 +532,7 @@ void raiden2cop_device::LEGACY_execute_c480(int offset, uint16_t data)
offs = (offset & 3) * 4;
// TODO: upper bits of DMA params seems to go into sprite priority?
m_host_space->write_word(cop_regs[4] + offs + 0, m_host_space->read_word(m_cop_sprite_dma_src + offs) + (m_cop_sprite_dma_param & 0x3f));
//m_host_space->write_word(cop_regs[4] + offs + 2,m_host_space->read_word(m_cop_sprite_dma_src+2 + offs));