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Diffstat (limited to 'src/mame/gaelco/xorworld_v.cpp')
-rw-r--r--src/mame/gaelco/xorworld_v.cpp115
1 files changed, 0 insertions, 115 deletions
diff --git a/src/mame/gaelco/xorworld_v.cpp b/src/mame/gaelco/xorworld_v.cpp
deleted file mode 100644
index 5cd8fed5647..00000000000
--- a/src/mame/gaelco/xorworld_v.cpp
+++ /dev/null
@@ -1,115 +0,0 @@
-// license:BSD-3-Clause
-// copyright-holders:Manuel Abadia
-#include "emu.h"
-#include "xorworld.h"
-
-
-/***************************************************************************
-
- Convert the color PROMs into a more useable format.
-
- Xor World has three 256x4 palette PROMs (one per gun).
- The palette PROMs are connected to the RGB output this way:
-
- bit 3 -- 220 ohm resistor -- RED/GREEN/BLUE
- -- 460 ohm resistor -- RED/GREEN/BLUE
- -- 1 kohm resistor -- RED/GREEN/BLUE
- bit 0 -- 2.2kohm resistor -- RED/GREEN/BLUE
-
-***************************************************************************/
-
-void xorworld_state::xorworld_palette(palette_device &palette) const
-{
- const uint8_t *color_prom = memregion("proms")->base();
-
- for (int i = 0; i < palette.entries(); i++)
- {
- int bit0, bit1, bit2, bit3;
-
- // red component
- bit0 = BIT(color_prom[0], 0);
- bit1 = BIT(color_prom[0], 1);
- bit2 = BIT(color_prom[0], 2);
- bit3 = BIT(color_prom[0], 3);
- int const r = 0x0e*bit0 + 0x1e*bit1 + 0x44*bit2 + 0x8f*bit3;
- // green component
- bit0 = BIT(color_prom[palette.entries()], 0);
- bit1 = BIT(color_prom[palette.entries()], 1);
- bit2 = BIT(color_prom[palette.entries()], 2);
- bit3 = BIT(color_prom[palette.entries()], 3);
- int const g = 0x0e*bit0 + 0x1e*bit1 + 0x44*bit2 + 0x8f*bit3;
- // blue component
- bit0 = BIT(color_prom[2 * palette.entries()], 0);
- bit1 = BIT(color_prom[2 * palette.entries()], 1);
- bit2 = BIT(color_prom[2 * palette.entries()], 2);
- bit3 = BIT(color_prom[2 * palette.entries()], 3);
- int const b = 0x0e*bit0 + 0x1e * bit1 + 0x44*bit2 + 0x8f*bit3;
- palette.set_pen_color(i, rgb_t(r, g, b));
-
- color_prom++;
- }
-}
-
-void xorworld_state::videoram_w(offs_t offset, uint16_t data, uint16_t mem_mask)
-{
- COMBINE_DATA(&m_videoram[offset]);
- m_bg_tilemap->mark_tile_dirty(offset);
-}
-
-/*
- Tile format
- -----------
-
- Word | Bit(s) | Description
- -----+-FEDCBA98-76543210-+--------------------------
- 0 | ----xxxx xxxxxxxx | code
- 0 | xxxx---- -------- | color
-*/
-
-TILE_GET_INFO_MEMBER(xorworld_state::get_bg_tile_info)
-{
- int data = m_videoram[tile_index];
- int code = data & 0x0fff;
-
- tileinfo.set(0, code, data >> 12, 0);
-}
-
-void xorworld_state::video_start()
-{
- m_bg_tilemap = &machine().tilemap().create(
- *m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(xorworld_state::get_bg_tile_info)), TILEMAP_SCAN_ROWS,
- 8, 8, 32, 32);
-}
-
-/*
- Sprite Format
- -------------
-
- Word | Bit(s) | Description
- -----+-FEDCBA98-76543210-+--------------------------
- 0 | -------- xxxxxxxx | x position
- 0 | xxxxxxxx -------- | y position
- 1 | -------- ------xx | flipxy? (not used)
- 1 | ----xxxx xxxxxx-- | sprite number
- 1 | xxxx---- -------- | sprite color
-*/
-
-void xorworld_state::draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect )
-{
- for (int i = 0; i < 0x40; i += 2)
- {
- int sx = m_spriteram[i] & 0x00ff;
- int sy = 240 - (((m_spriteram[i] & 0xff00) >> 8) & 0xff);
- int code = (m_spriteram[i+1] & 0x0ffc) >> 2;
- int color = (m_spriteram[i+1] & 0xf000) >> 12;
-
- m_gfxdecode->gfx(1)->transpen(bitmap,cliprect, code, color, 0, 0, sx, sy, 0);
- }
-}
-
-uint32_t xorworld_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
-{
- m_bg_tilemap->draw(screen, bitmap, cliprect, 0, 0);
- draw_sprites(bitmap, cliprect);
- return 0;
-}