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Viewing changes to src/mame/video/starshp1.c

  • Committer: Package Import Robot
  • Author(s): Jordi Mallach, Emmanuel Kasper, Jordi Mallach
  • Date: 2012-06-05 20:02:23 UTC
  • mfrom: (0.3.1) (0.1.4)
  • Revision ID: package-import@ubuntu.com-20120605200223-gnlpogjrg6oqe9md
Tags: 0.146-1
[ Emmanuel Kasper ]
* New upstream release
* Drop patch to fix man pages section and patches to link with flac 
  and jpeg system lib: all this has been pushed upstream by Cesare Falco
* Add DM-Upload-Allowed: yes field.

[ Jordi Mallach ]
* Create a "gnu" TARGETOS stanza that defines NO_AFFINITY_NP.
* Stop setting TARGETOS to "unix" in d/rules. It should be autodetected,
  and set to the appropriate value.
* mame_manpage_section.patch: Change mame's manpage section to 6 (games),
  in the TH declaration.

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src/mame/video/starshp1.c
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}
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READ8_HANDLER( starshp1_rng_r )
 
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READ8_MEMBER(starshp1_state::starshp1_rng_r)
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{
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        starshp1_state *state = space->machine().driver_data<starshp1_state>();
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        int width = space->machine().primary_screen->width();
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        int height = space->machine().primary_screen->height();
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        int x = space->machine().primary_screen->hpos();
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        int y = space->machine().primary_screen->vpos();
 
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        int width = machine().primary_screen->width();
 
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        int height = machine().primary_screen->height();
 
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        int x = machine().primary_screen->hpos();
 
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        int y = machine().primary_screen->vpos();
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        /* the LFSR is only running in the non-blank region
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       of the screen, so this is not quite right */
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        if (y > height - 1)
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                y = height - 1;
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        return state->m_LSFR[x + (UINT16) (512 * y)];
 
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        return m_LSFR[x + (UINT16) (512 * y)];
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}
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WRITE8_HANDLER( starshp1_ssadd_w )
 
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WRITE8_MEMBER(starshp1_state::starshp1_ssadd_w)
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{
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        starshp1_state *state = space->machine().driver_data<starshp1_state>();
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        /*
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     * The range of sprite position values doesn't suffice to
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     * move the zoomed spaceship sprite over the top and left
 
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     * move the zoomed &spaceship sprite over the top and left
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     * edges of the screen. These additional values are used
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     * to compensate for this. Technically, they cut off the
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     * first columns and rows of the spaceship sprite, but in
 
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     * first columns and rows of the &spaceship sprite, but in
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     * practice they work like offsets in zoomed pixels.
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     */
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        state->m_ship_voffset = ((offset & 0xf0) >> 4);
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        state->m_ship_hoffset = ((offset & 0x0f) << 2) | (data & 3);
 
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        m_ship_voffset = ((offset & 0xf0) >> 4);
 
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        m_ship_hoffset = ((offset & 0x0f) << 2) | (data & 3);
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}
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WRITE8_HANDLER( starshp1_sspic_w )
 
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WRITE8_MEMBER(starshp1_state::starshp1_sspic_w)
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{
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        starshp1_state *state = space->machine().driver_data<starshp1_state>();
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        /*
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     * Some mysterious game code at address $2CCE is causing
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     * erratic images in the target explosion sequence. The
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     */
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        if (data != 0x87)
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                state->m_ship_picture = data;
 
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                m_ship_picture = data;
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}
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WRITE8_HANDLER( starshp1_playfield_w )
 
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WRITE8_MEMBER(starshp1_state::starshp1_playfield_w)
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{
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        starshp1_state *state = space->machine().driver_data<starshp1_state>();
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        if (state->m_mux != 0)
 
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        if (m_mux != 0)
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        {
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                offset ^= 0x1f;
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                state->m_playfield_ram[offset] = data;
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                state->m_bg_tilemap->mark_tile_dirty(offset);
 
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                m_playfield_ram[offset] = data;
 
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                m_bg_tilemap->mark_tile_dirty(offset);
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        }
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}
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