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not really sure what's mapped to this additional cpu...

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This commit is contained in:
David Haywood 2013-02-03 23:09:12 +00:00
parent 25f4e7e953
commit 8efd96ddb7
3 changed files with 50 additions and 8 deletions
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7
src/mame/drivers/spbactn.c
View File

@ -232,9 +232,9 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( spbactnp_extra_map, AS_PROGRAM, 8, spbactn_state )
AM_RANGE(0x0000, 0xefff) AM_ROM
AM_RANGE(0xc000, 0xc7ff) AM_RAM
AM_RANGE(0xc000, 0xc7ff) AM_RAM AM_SHARE("extraram2")
AM_RANGE(0xe000, 0xefff) AM_RAM
AM_RANGE(0xd000, 0xd1ff) AM_RAM
AM_RANGE(0xd000, 0xd1ff) AM_RAM_WRITE( extraram_w ) AM_SHARE("extraram")
AM_RANGE(0xd200, 0xd200) AM_RAM
ADDRESS_MAP_END
@ -428,6 +428,7 @@ static MACHINE_CONFIG_START( spbactn, spbactn_state )
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
MCFG_SCREEN_SIZE(64*8, 32*8)
MCFG_SCREEN_VISIBLE_AREA(0*8, 64*8-1, 2*8, 30*8-1)
MCFG_VIDEO_START_OVERRIDE(spbactn_state,spbactn)
MCFG_SCREEN_UPDATE_DRIVER(spbactn_state, screen_update_spbactn)
MCFG_GFXDECODE(spbactn)
@ -460,6 +461,7 @@ static MACHINE_CONFIG_START( spbactnp, spbactn_state )
MCFG_CPU_ADD("extracpu", Z80, XTAL_4MHz)
MCFG_CPU_PROGRAM_MAP(spbactnp_extra_map)
MCFG_CPU_VBLANK_INT_DRIVER("screen", spbactn_state, irq0_line_hold)
// MCFG_CPU_VBLANK_INT_DRIVER("screen", spbactn_state, nmi_line_pulse)
/* video hardware */
@ -468,6 +470,7 @@ static MACHINE_CONFIG_START( spbactnp, spbactn_state )
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
MCFG_SCREEN_SIZE(64*8, 32*8)
MCFG_SCREEN_VISIBLE_AREA(0*8, 64*8-1, 2*8, 30*8-1)
MCFG_VIDEO_START_OVERRIDE(spbactn_state,spbactnp)
MCFG_SCREEN_UPDATE_DRIVER(spbactn_state, screen_update_spbactnp)
MCFG_GFXDECODE(spbactnp)

22
src/mame/includes/spbactn.h
View File

@ -5,22 +5,36 @@ public:
: driver_device(mconfig, type, tag) ,
m_bgvideoram(*this, "bgvideoram"),
m_fgvideoram(*this, "fgvideoram"),
m_spvideoram(*this, "spvideoram"){ }
m_spvideoram(*this, "spvideoram"),
m_extraram(*this, "extraram"),
m_extraram2(*this, "extraram2")
{ }
required_shared_ptr<UINT16> m_bgvideoram;
required_shared_ptr<UINT16> m_fgvideoram;
required_shared_ptr<UINT16> m_spvideoram;
optional_shared_ptr<UINT8> m_extraram;
optional_shared_ptr<UINT8> m_extraram2;
tilemap_t *m_bg_tilemap;
tilemap_t *m_fg_tilemap;
tilemap_t *m_extra_tilemap;
DECLARE_WRITE16_MEMBER(bg_videoram_w);
DECLARE_WRITE16_MEMBER(fg_videoram_w);
TILE_GET_INFO_MEMBER(get_bg_tile_info);
TILE_GET_INFO_MEMBER(get_fg_tile_info);
DECLARE_WRITE8_MEMBER(extraram_w);
TILE_GET_INFO_MEMBER(get_extra_tile_info);
bitmap_ind16 m_tile_bitmap_bg;
bitmap_ind16 m_tile_bitmap_fg;
DECLARE_WRITE16_MEMBER(soundcommand_w);
DECLARE_WRITE16_MEMBER( spbatnp_90002_w );
@ -32,9 +46,11 @@ public:
DECLARE_WRITE16_MEMBER( spbatnp_90124_w );
DECLARE_WRITE16_MEMBER( spbatnp_9012c_w );
DECLARE_VIDEO_START(spbactn);
DECLARE_VIDEO_START(spbactnp);
virtual void video_start();
//virtual void video_start();
UINT32 screen_update_spbactn(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
UINT32 screen_update_spbactnp(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
int draw_video(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect, bool alt_sprites);

29
src/mame/video/spbactn.c
View File

@ -155,13 +155,12 @@ TILE_GET_INFO_MEMBER(spbactn_state::get_fg_tile_info)
void spbactn_state::video_start()
VIDEO_START_MEMBER(spbactn_state,spbactn)
{
/* allocate bitmaps */
machine().primary_screen->register_screen_bitmap(m_tile_bitmap_bg);
machine().primary_screen->register_screen_bitmap(m_tile_bitmap_fg);
m_bg_tilemap = &machine().tilemap().create(tilemap_get_info_delegate(FUNC(spbactn_state::get_bg_tile_info),this), TILEMAP_SCAN_ROWS, 16, 8, 64, 128);
m_fg_tilemap = &machine().tilemap().create(tilemap_get_info_delegate(FUNC(spbactn_state::get_fg_tile_info),this), TILEMAP_SCAN_ROWS, 16, 8, 64, 128);
m_bg_tilemap->set_transparent_pen(0);
@ -169,7 +168,12 @@ void spbactn_state::video_start()
}
VIDEO_START_MEMBER(spbactn_state,spbactnp)
{
VIDEO_START_CALL_MEMBER(spbactn);
// no idea..
m_extra_tilemap = &machine().tilemap().create(tilemap_get_info_delegate(FUNC(spbactn_state::get_extra_tile_info),this), TILEMAP_SCAN_ROWS, 8, 8, 16, 16);
}
WRITE16_MEMBER( spbactn_state::spbatnp_90002_w )
{
//printf("spbatnp_90002_w %04x\n",data);
@ -210,6 +214,21 @@ WRITE16_MEMBER( spbactn_state::spbatnp_9012c_w )
}
WRITE8_MEMBER(spbactn_state::extraram_w)
{
COMBINE_DATA(&m_extraram[offset]);
m_extra_tilemap->mark_tile_dirty(offset/2);
}
TILE_GET_INFO_MEMBER(spbactn_state::get_extra_tile_info)
{
int tileno = m_extraram[(tile_index*2)+1];
tileno |= m_extraram[(tile_index*2)] << 8;
SET_TILE_INFO_MEMBER(3, tileno, 0, 0);
}
int spbactn_state::draw_video(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect, bool alt_sprites)
{
@ -244,5 +263,9 @@ UINT32 spbactn_state::screen_update_spbactn(screen_device &screen, bitmap_rgb32
UINT32 spbactn_state::screen_update_spbactnp(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
// hack to make the extra cpu do something..
m_extraram2[0x104] = machine().rand();
m_extraram2[0x105] = machine().rand();
return draw_video(screen,bitmap,cliprect,true);
}