mirror of
https://github.com/holub/mame
synced 2025-05-31 01:51:46 +03:00
More cleanup (nw)
This commit is contained in:
Miodrag Milanovic
parent
de7ee87f23
commit
3fad03b0b2
@ -25,50 +25,49 @@ TODO:
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#include "includes/ladybug.h"
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static WRITE8_HANDLER( irqack_w )
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WRITE8_MEMBER( ladybug_state::irqack_w )
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{
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ladybug_state *state = space.machine().driver_data<ladybug_state>();
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state->m_maincpu->set_input_line(0, CLEAR_LINE);
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m_maincpu->set_input_line(0, CLEAR_LINE);
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}
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static ADDRESS_MAP_START( zerohour_map, AS_PROGRAM, 8, ladybug_state )
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AM_RANGE(0x0000, 0x2fff) AM_ROM
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AM_RANGE(0x3000, 0x37ff) AM_RAM
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AM_RANGE(0x3800, 0x3bff) AM_RAM AM_SHARE("spriteram")
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AM_RANGE(0x4000, 0x43ff) AM_RAM_WRITE_LEGACY(redclash_videoram_w) AM_SHARE("videoram")
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AM_RANGE(0x4000, 0x43ff) AM_RAM_WRITE(redclash_videoram_w) AM_SHARE("videoram")
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AM_RANGE(0x4800, 0x4800) AM_READ_PORT("IN0") /* IN0 */
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AM_RANGE(0x4801, 0x4801) AM_READ_PORT("IN1") /* IN1 */
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AM_RANGE(0x4802, 0x4802) AM_READ_PORT("DSW1") /* DSW0 */
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AM_RANGE(0x4803, 0x4803) AM_READ_PORT("DSW2") /* DSW1 */
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AM_RANGE(0x5000, 0x5007) AM_WRITENOP /* to sound board */
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AM_RANGE(0x5800, 0x5800) AM_WRITE_LEGACY(redclash_star0_w)
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AM_RANGE(0x5800, 0x5800) AM_WRITE(redclash_star0_w)
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AM_RANGE(0x5801, 0x5804) AM_WRITENOP /* to sound board */
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AM_RANGE(0x5805, 0x5805) AM_WRITE_LEGACY(redclash_star1_w)
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AM_RANGE(0x5806, 0x5806) AM_WRITE_LEGACY(redclash_star2_w)
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AM_RANGE(0x5807, 0x5807) AM_WRITE_LEGACY(redclash_flipscreen_w)
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AM_RANGE(0x7000, 0x7000) AM_WRITE_LEGACY(redclash_star_reset_w)
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AM_RANGE(0x7800, 0x7800) AM_WRITE_LEGACY(irqack_w)
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AM_RANGE(0x5805, 0x5805) AM_WRITE(redclash_star1_w)
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AM_RANGE(0x5806, 0x5806) AM_WRITE(redclash_star2_w)
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AM_RANGE(0x5807, 0x5807) AM_WRITE(redclash_flipscreen_w)
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AM_RANGE(0x7000, 0x7000) AM_WRITE(redclash_star_reset_w)
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AM_RANGE(0x7800, 0x7800) AM_WRITE(irqack_w)
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ADDRESS_MAP_END
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static ADDRESS_MAP_START( redclash_map, AS_PROGRAM, 8, ladybug_state )
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AM_RANGE(0x0000, 0x2fff) AM_ROM
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// AM_RANGE(0x3000, 0x3000) AM_WRITENOP
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// AM_RANGE(0x3800, 0x3800) AM_WRITENOP
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AM_RANGE(0x4000, 0x43ff) AM_RAM_WRITE_LEGACY(redclash_videoram_w) AM_SHARE("videoram")
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AM_RANGE(0x4000, 0x43ff) AM_RAM_WRITE(redclash_videoram_w) AM_SHARE("videoram")
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AM_RANGE(0x4800, 0x4800) AM_READ_PORT("IN0") /* IN0 */
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AM_RANGE(0x4801, 0x4801) AM_READ_PORT("IN1") /* IN1 */
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AM_RANGE(0x4802, 0x4802) AM_READ_PORT("DSW1") /* DSW0 */
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AM_RANGE(0x4803, 0x4803) AM_READ_PORT("DSW2") /* DSW1 */
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AM_RANGE(0x5000, 0x5007) AM_WRITENOP /* to sound board */
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AM_RANGE(0x5800, 0x5800) AM_WRITE_LEGACY(redclash_star0_w)
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AM_RANGE(0x5801, 0x5801) AM_WRITE_LEGACY(redclash_gfxbank_w)
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AM_RANGE(0x5805, 0x5805) AM_WRITE_LEGACY(redclash_star1_w)
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AM_RANGE(0x5806, 0x5806) AM_WRITE_LEGACY(redclash_star2_w)
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AM_RANGE(0x5807, 0x5807) AM_WRITE_LEGACY(redclash_flipscreen_w)
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AM_RANGE(0x5800, 0x5800) AM_WRITE(redclash_star0_w)
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AM_RANGE(0x5801, 0x5801) AM_WRITE(redclash_gfxbank_w)
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AM_RANGE(0x5805, 0x5805) AM_WRITE(redclash_star1_w)
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AM_RANGE(0x5806, 0x5806) AM_WRITE(redclash_star2_w)
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AM_RANGE(0x5807, 0x5807) AM_WRITE(redclash_flipscreen_w)
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AM_RANGE(0x6000, 0x67ff) AM_RAM
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AM_RANGE(0x6800, 0x6bff) AM_RAM AM_SHARE("spriteram")
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AM_RANGE(0x7000, 0x7000) AM_WRITE_LEGACY(redclash_star_reset_w)
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AM_RANGE(0x7800, 0x7800) AM_WRITE_LEGACY(irqack_w)
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AM_RANGE(0x7000, 0x7000) AM_WRITE(redclash_star_reset_w)
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AM_RANGE(0x7800, 0x7800) AM_WRITE(irqack_w)
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ADDRESS_MAP_END
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/*
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@ -82,21 +82,21 @@ public:
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void screen_eof_sraider(screen_device &screen, bool state);
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void screen_eof_redclash(screen_device &screen, bool state);
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void draw_sprites( bitmap_ind16 &bitmap, const rectangle &cliprect );
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DECLARE_WRITE8_MEMBER( redclash_videoram_w );
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DECLARE_WRITE8_MEMBER( redclash_gfxbank_w );
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DECLARE_WRITE8_MEMBER( redclash_flipscreen_w );
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DECLARE_WRITE8_MEMBER( redclash_star0_w );
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DECLARE_WRITE8_MEMBER( redclash_star1_w );
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DECLARE_WRITE8_MEMBER( redclash_star2_w );
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DECLARE_WRITE8_MEMBER( redclash_star_reset_w );
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DECLARE_WRITE8_MEMBER( irqack_w );
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/* sraider uses the zerohour star generator board */
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void redclash_set_stars_enable(UINT8 on);
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void redclash_update_stars_state();
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void redclash_set_stars_speed(UINT8 speed);
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void redclash_draw_stars(bitmap_ind16 &bitmap, const rectangle &cliprect, UINT8 palette_offset, UINT8 sraider, UINT8 firstx, UINT8 lastx);
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void redclash_draw_sprites( bitmap_ind16 &bitmap, const rectangle &cliprect );
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void redclash_draw_bullets( bitmap_ind16 &bitmap, const rectangle &cliprect );
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};
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/*----------- defined in video/redclash.c -----------*/
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DECLARE_WRITE8_HANDLER( redclash_videoram_w );
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DECLARE_WRITE8_HANDLER( redclash_gfxbank_w );
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DECLARE_WRITE8_HANDLER( redclash_flipscreen_w );
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DECLARE_WRITE8_HANDLER( redclash_star0_w );
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DECLARE_WRITE8_HANDLER( redclash_star1_w );
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DECLARE_WRITE8_HANDLER( redclash_star2_w );
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DECLARE_WRITE8_HANDLER( redclash_star_reset_w );
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/* sraider uses the zerohour star generator board */
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void redclash_set_stars_enable(running_machine &machine, UINT8 on);
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void redclash_update_stars_state(running_machine &machine);
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void redclash_set_stars_speed(running_machine &machine, UINT8 speed);
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void redclash_draw_stars(running_machine &machine, bitmap_ind16 &bitmap, const rectangle &cliprect, UINT8 palette_offset, UINT8 sraider, UINT8 firstx, UINT8 lastx);
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@ -175,7 +175,7 @@ WRITE8_MEMBER(ladybug_state::sraider_io_w)
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m_grid_color = data & 0x70;
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redclash_set_stars_enable(machine(), (data & 0x08) >> 3);
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redclash_set_stars_enable((data & 0x08) >> 3);
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/*
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* There must be a subtle clocking difference between
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@ -183,7 +183,7 @@ WRITE8_MEMBER(ladybug_state::sraider_io_w)
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* hence the -1 here
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*/
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redclash_set_stars_speed(machine(), (data & 0x07) - 1);
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redclash_set_stars_speed((data & 0x07) - 1);
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}
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TILE_GET_INFO_MEMBER(ladybug_state::get_bg_tile_info)
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@ -301,7 +301,7 @@ void ladybug_state::screen_eof_sraider(screen_device &screen, bool state)/* upda
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{
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// falling edge
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if (!state)
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redclash_update_stars_state(machine());
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redclash_update_stars_state();
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}
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UINT32 ladybug_state::screen_update_sraider(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
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@ -328,9 +328,9 @@ UINT32 ladybug_state::screen_update_sraider(screen_device &screen, bitmap_ind16
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// draw the stars
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if (flip_screen())
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redclash_draw_stars(machine(), bitmap, cliprect, 0x60, 1, 0x27, 0xff);
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redclash_draw_stars(bitmap, cliprect, 0x60, 1, 0x27, 0xff);
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else
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redclash_draw_stars(machine(), bitmap, cliprect, 0x60, 1, 0x00, 0xd8);
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redclash_draw_stars(bitmap, cliprect, 0x60, 1, 0x00, 0xd8);
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// draw the gridlines
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colortable_palette_set_color(machine().colortable, 0x40, MAKE_RGB(m_grid_color & 0x40 ? 0xff : 0,
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@ -100,34 +100,26 @@ PALETTE_INIT_MEMBER(ladybug_state,redclash)
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colortable_entry_set_value(machine().colortable, i, (i - 0x60) + 0x20);
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}
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WRITE8_HANDLER( redclash_videoram_w )
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WRITE8_HANDLER( ladybug_state::redclash_videoram_w )
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{
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ladybug_state *state = space.machine().driver_data<ladybug_state>();
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state->m_videoram[offset] = data;
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state->m_fg_tilemap->mark_tile_dirty(offset);
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m_videoram[offset] = data;
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m_fg_tilemap->mark_tile_dirty(offset);
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}
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WRITE8_HANDLER( redclash_gfxbank_w )
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WRITE8_HANDLER( ladybug_state::redclash_gfxbank_w )
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{
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ladybug_state *state = space.machine().driver_data<ladybug_state>();
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if (state->m_gfxbank != (data & 0x01))
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if (m_gfxbank != (data & 0x01))
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{
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state->m_gfxbank = data & 0x01;
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space.machine().tilemap().mark_all_dirty();
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m_gfxbank = data & 0x01;
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machine().tilemap().mark_all_dirty();
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}
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}
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WRITE8_HANDLER( redclash_flipscreen_w )
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WRITE8_HANDLER( ladybug_state::redclash_flipscreen_w )
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{
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ladybug_state *state = space.machine().driver_data<ladybug_state>();
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state->flip_screen_set(data & 0x01);
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flip_screen_set(data & 0x01);
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}
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void redclash_set_stars_enable( running_machine &machine, UINT8 on ); //temp
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void redclash_set_stars_speed( running_machine &machine, UINT8 speed ); //temp
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/*
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star_speed:
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0 = unused
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@ -139,33 +131,27 @@ star_speed:
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6 = backwards medium
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7 = backwards fast
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*/
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WRITE8_HANDLER( redclash_star0_w )
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WRITE8_HANDLER( ladybug_state::redclash_star0_w )
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{
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ladybug_state *state = space.machine().driver_data<ladybug_state>();
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state->m_star_speed = (state->m_star_speed & ~1) | ((data & 1) << 0);
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redclash_set_stars_speed(space.machine(), state->m_star_speed);
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m_star_speed = (m_star_speed & ~1) | ((data & 1) << 0);
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redclash_set_stars_speed(m_star_speed);
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}
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WRITE8_HANDLER( redclash_star1_w )
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WRITE8_HANDLER( ladybug_state::redclash_star1_w )
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{
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ladybug_state *state = space.machine().driver_data<ladybug_state>();
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state->m_star_speed = (state->m_star_speed & ~2) | ((data & 1) << 1);
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redclash_set_stars_speed(space.machine(), state->m_star_speed);
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m_star_speed = (m_star_speed & ~2) | ((data & 1) << 1);
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redclash_set_stars_speed(m_star_speed);
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}
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WRITE8_HANDLER( redclash_star2_w )
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WRITE8_HANDLER( ladybug_state::redclash_star2_w )
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{
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ladybug_state *state = space.machine().driver_data<ladybug_state>();
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state->m_star_speed = (state->m_star_speed & ~4) | ((data & 1) << 2);
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redclash_set_stars_speed(space.machine(), state->m_star_speed);
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m_star_speed = (m_star_speed & ~4) | ((data & 1) << 2);
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redclash_set_stars_speed( m_star_speed);
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}
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WRITE8_HANDLER( redclash_star_reset_w )
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WRITE8_HANDLER( ladybug_state::redclash_star_reset_w )
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{
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redclash_set_stars_enable(space.machine(), 1);
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redclash_set_stars_enable(1);
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}
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TILE_GET_INFO_MEMBER(ladybug_state::get_fg_tile_info)
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@ -182,13 +168,12 @@ VIDEO_START_MEMBER(ladybug_state,redclash)
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m_fg_tilemap->set_transparent_pen(0);
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}
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static void draw_sprites( running_machine &machine, bitmap_ind16 &bitmap, const rectangle &cliprect )
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void ladybug_state::redclash_draw_sprites( bitmap_ind16 &bitmap, const rectangle &cliprect )
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{
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ladybug_state *state = machine.driver_data<ladybug_state>();
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UINT8 *spriteram = state->m_spriteram;
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UINT8 *spriteram = m_spriteram;
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int i, offs;
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for (offs = state->m_spriteram.bytes() - 0x20; offs >= 0; offs -= 0x20)
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for (offs = m_spriteram.bytes() - 0x20; offs >= 0; offs -= 0x20)
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{
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i = 0;
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while (i < 0x20 && spriteram[offs + i] != 0)
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@ -209,15 +194,15 @@ static void draw_sprites( running_machine &machine, bitmap_ind16 &bitmap, const
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{
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case 3: /* 24x24 */
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{
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int code = ((spriteram[offs + i + 1] & 0xf0) >> 4) + ((state->m_gfxbank & 1) << 4);
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int code = ((spriteram[offs + i + 1] & 0xf0) >> 4) + ((m_gfxbank & 1) << 4);
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drawgfx_transpen(bitmap,cliprect,machine.gfx[3],
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drawgfx_transpen(bitmap,cliprect,machine().gfx[3],
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code,
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color,
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0,0,
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sx,sy - 16,0);
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/* wraparound */
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drawgfx_transpen(bitmap,cliprect,machine.gfx[3],
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drawgfx_transpen(bitmap,cliprect,machine().gfx[3],
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code,
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color,
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0,0,
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@ -228,10 +213,10 @@ static void draw_sprites( running_machine &machine, bitmap_ind16 &bitmap, const
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case 2: /* 16x16 */
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if (spriteram[offs + i] & 0x20) /* zero hour spaceships */
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{
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int code = ((spriteram[offs + i + 1] & 0xf8) >> 3) + ((state->m_gfxbank & 1) << 5);
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int code = ((spriteram[offs + i + 1] & 0xf8) >> 3) + ((m_gfxbank & 1) << 5);
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int bank = (spriteram[offs + i + 1] & 0x02) >> 1;
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drawgfx_transpen(bitmap,cliprect,machine.gfx[4+bank],
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drawgfx_transpen(bitmap,cliprect,machine().gfx[4+bank],
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code,
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color,
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0,0,
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@ -239,9 +224,9 @@ static void draw_sprites( running_machine &machine, bitmap_ind16 &bitmap, const
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}
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else
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{
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int code = ((spriteram[offs + i + 1] & 0xf0) >> 4) + ((state->m_gfxbank & 1) << 4);
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int code = ((spriteram[offs + i + 1] & 0xf0) >> 4) + ((m_gfxbank & 1) << 4);
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drawgfx_transpen(bitmap,cliprect,machine.gfx[2],
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drawgfx_transpen(bitmap,cliprect,machine().gfx[2],
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code,
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color,
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0,0,
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@ -250,7 +235,7 @@ static void draw_sprites( running_machine &machine, bitmap_ind16 &bitmap, const
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break;
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case 1: /* 8x8 */
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drawgfx_transpen(bitmap,cliprect,machine.gfx[1],
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drawgfx_transpen(bitmap,cliprect,machine().gfx[1],
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spriteram[offs + i + 1],// + 4 * (spriteram[offs + i + 2] & 0x10),
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color,
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0,0,
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@ -266,18 +251,17 @@ static void draw_sprites( running_machine &machine, bitmap_ind16 &bitmap, const
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}
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}
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static void draw_bullets( running_machine &machine, bitmap_ind16 &bitmap, const rectangle &cliprect )
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void ladybug_state::redclash_draw_bullets( bitmap_ind16 &bitmap, const rectangle &cliprect )
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{
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ladybug_state *state = machine.driver_data<ladybug_state>();
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int offs;
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for (offs = 0; offs < 0x20; offs++)
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{
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// sx = state->m_videoramoffs];
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int sx = 8 * offs + (state->m_videoram[offs] & 0x07); /* ?? */
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int sy = 0xff - state->m_videoram[offs + 0x20];
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// sx = m_videoramoffs];
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int sx = 8 * offs + (m_videoram[offs] & 0x07); /* ?? */
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int sy = 0xff - m_videoram[offs + 0x20];
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if (state->flip_screen())
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if (flip_screen())
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{
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sx = 240 - sx;
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}
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@ -301,37 +285,35 @@ static void draw_bullets( running_machine &machine, bitmap_ind16 &bitmap, const
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*/
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/* This line can reset the LFSR to zero and disables the star generator */
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void redclash_set_stars_enable( running_machine &machine, UINT8 on )
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{ ladybug_state *state = machine.driver_data<ladybug_state>();
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if ((state->m_stars_enable == 0) && (on == 1))
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void ladybug_state::redclash_set_stars_enable(UINT8 on)
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{
|
||||
if ((m_stars_enable == 0) && (on == 1))
|
||||
{
|
||||
state->m_stars_offset = 0;
|
||||
m_stars_offset = 0;
|
||||
}
|
||||
|
||||
state->m_stars_enable = on;
|
||||
m_stars_enable = on;
|
||||
}
|
||||
|
||||
/* This sets up which starfield to draw and the offset, */
|
||||
/* To be called from SCREEN_VBLANK() */
|
||||
|
||||
void redclash_update_stars_state( running_machine &machine )
|
||||
void ladybug_state::redclash_update_stars_state()
|
||||
{
|
||||
ladybug_state *state = machine.driver_data<ladybug_state>();
|
||||
if (state->m_stars_enable == 0)
|
||||
if (m_stars_enable == 0)
|
||||
return;
|
||||
|
||||
state->m_stars_count++;
|
||||
state->m_stars_count %= 2;
|
||||
m_stars_count++;
|
||||
m_stars_count %= 2;
|
||||
|
||||
if (state->m_stars_count == 0)
|
||||
if (m_stars_count == 0)
|
||||
{
|
||||
state->m_stars_offset += ((state->m_stars_speed * 2) - 0x09);
|
||||
state->m_stars_offset %= 256 * 256;
|
||||
state->m_stars_state = 0;
|
||||
m_stars_offset += ((m_stars_speed * 2) - 0x09);
|
||||
m_stars_offset %= 256 * 256;
|
||||
m_stars_state = 0;
|
||||
}
|
||||
else
|
||||
state->m_stars_state = 0x1fc71;
|
||||
m_stars_state = 0x1fc71;
|
||||
}
|
||||
|
||||
/* Set the speed register (3 bits) */
|
||||
@ -347,10 +329,9 @@ void redclash_update_stars_state( running_machine &machine )
|
||||
* 7 right/up fast (+5/2 pix per frame)
|
||||
*/
|
||||
|
||||
void redclash_set_stars_speed( running_machine &machine, UINT8 speed )
|
||||
void ladybug_state::redclash_set_stars_speed(UINT8 speed )
|
||||
{
|
||||
ladybug_state *state = machine.driver_data<ladybug_state>();
|
||||
state->m_stars_speed = speed;
|
||||
m_stars_speed = speed;
|
||||
}
|
||||
|
||||
/* Draw the stars */
|
||||
@ -358,23 +339,22 @@ void redclash_set_stars_speed( running_machine &machine, UINT8 speed )
|
||||
/* Space Raider doesn't use the Va bit, and it is also set up to */
|
||||
/* window the stars to a certain x range */
|
||||
|
||||
void redclash_draw_stars( running_machine &machine, bitmap_ind16 &bitmap, const rectangle &cliprect, UINT8 palette_offset, UINT8 sraider, UINT8 firstx, UINT8 lastx )
|
||||
void ladybug_state::redclash_draw_stars(bitmap_ind16 &bitmap, const rectangle &cliprect, UINT8 palette_offset, UINT8 sraider, UINT8 firstx, UINT8 lastx )
|
||||
{
|
||||
ladybug_state *redclash = machine.driver_data<ladybug_state>();
|
||||
int i;
|
||||
UINT8 tempbit, feedback, star_color, xloc, yloc;
|
||||
UINT32 state;
|
||||
UINT8 hcond, vcond;
|
||||
|
||||
if (redclash->m_stars_enable == 0)
|
||||
if (m_stars_enable == 0)
|
||||
return;
|
||||
|
||||
state = redclash->m_stars_state;
|
||||
state = m_stars_state;
|
||||
|
||||
for(i = 0; i < 256 * 256; i++)
|
||||
{
|
||||
xloc = (redclash->m_stars_offset + i) % 256;
|
||||
yloc = ((redclash->m_stars_offset + i) /256 ) % 256;
|
||||
xloc = (m_stars_offset + i) % 256;
|
||||
yloc = ((m_stars_offset + i) /256 ) % 256;
|
||||
|
||||
if ((state & 0x10000) == 0)
|
||||
tempbit = 1;
|
||||
@ -420,15 +400,15 @@ void ladybug_state::screen_eof_redclash(screen_device &screen, bool state)
|
||||
{
|
||||
// falling edge
|
||||
if (!state)
|
||||
redclash_update_stars_state(machine());
|
||||
redclash_update_stars_state();
|
||||
}
|
||||
|
||||
UINT32 ladybug_state::screen_update_redclash(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
|
||||
{
|
||||
bitmap.fill(get_black_pen(machine()), cliprect);
|
||||
redclash_draw_stars(machine(), bitmap, cliprect, 0x60, 0, 0x00, 0xff);
|
||||
::draw_sprites(machine(), bitmap, cliprect);
|
||||
draw_bullets(machine(), bitmap, cliprect);
|
||||
redclash_draw_stars(bitmap, cliprect, 0x60, 0, 0x00, 0xff);
|
||||
redclash_draw_sprites(bitmap, cliprect);
|
||||
redclash_draw_bullets(bitmap, cliprect);
|
||||
m_fg_tilemap->draw(bitmap, cliprect, 0, 0);
|
||||
return 0;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user