diff options
Diffstat (limited to 'src/mame/video/crospang.cpp')
-rw-r--r-- | src/mame/video/crospang.cpp | 141 |
1 files changed, 0 insertions, 141 deletions
diff --git a/src/mame/video/crospang.cpp b/src/mame/video/crospang.cpp deleted file mode 100644 index 5e83d448063..00000000000 --- a/src/mame/video/crospang.cpp +++ /dev/null @@ -1,141 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Pierpaolo Prazzoli, David Haywood -/* - - Cross Pang - video hardware emulation - - -- this seems to be the same as the tumblepop bootleg based hardware - in tumbleb.cpp - - -*/ - -#include "emu.h" -#include "includes/crospang.h" - - -void crospang_state::tilebank_select_w(u16 data) -{ - logerror("tilebank_select_w %04x\n", data); - - m_tilebankselect = (data >> 8) & 3; -} - - -void crospang_state::tilebank_data_w(u16 data) -{ - logerror("tilebank_data_w %04x\n", data); - - m_tilebank[m_tilebankselect] = data >> 8; - - m_fg_layer->mark_all_dirty(); - m_bg_layer->mark_all_dirty(); -} - - -// Bestri performs some unusual operations on the scroll values before writing them -void crospang_state::bestri_bg_scrolly_w(u16 data) -{ - // addi.w #$1f8, D0 - // eori.w #$154, D0 - int scroll = (data & 0x3ff) ^ 0x0155; - m_bg_layer->set_scrolly(0, -scroll + 7); -} - -void crospang_state::bestri_fg_scrolly_w(u16 data) -{ - // addi.w #$1f8, D0 - // eori.w #$aa, D0 - int scroll = (data & 0x3ff) ^ 0x00ab; - m_fg_layer->set_scrolly(0, -scroll + 7); -} - -void crospang_state::bestri_fg_scrollx_w(u16 data) -{ - // addi.w #$400, D1 - // eori.w #$1e0, D1 - int scroll = (data & 0x3ff) ^ 0x1e1; - m_fg_layer->set_scrollx(0, scroll - 1); -} - -void crospang_state::bestri_bg_scrollx_w(u16 data) -{ - // addi.w #$3fc, D1 - // eori.w #$3c0, D1 - int scroll = (data & 0x3ff) ^ 0x3c1; - m_bg_layer->set_scrollx(0, scroll + 3); -} - - -void crospang_state::fg_scrolly_w(u16 data) -{ - m_fg_layer->set_scrolly(0, data + 8); -} - -void crospang_state::bg_scrolly_w(u16 data) -{ - m_bg_layer->set_scrolly(0, data + 8); -} - -void crospang_state::fg_scrollx_w(u16 data) -{ - m_fg_layer->set_scrollx(0, data); -} - -void crospang_state::bg_scrollx_w(u16 data) -{ - m_bg_layer->set_scrollx(0, data + 4); -} - - -void crospang_state::fg_videoram_w(offs_t offset, u16 data, u16 mem_mask) -{ - COMBINE_DATA(&m_fg_videoram[offset]); - m_fg_layer->mark_tile_dirty(offset); -} - -void crospang_state::bg_videoram_w(offs_t offset, u16 data, u16 mem_mask) -{ - COMBINE_DATA(&m_bg_videoram[offset]); - m_bg_layer->mark_tile_dirty(offset); -} - -TILE_GET_INFO_MEMBER(crospang_state::get_bg_tile_info) -{ - int data = m_bg_videoram[tile_index]; - int tile = data & 0x03ff; - int tilebank = (data & 0x0c00) >> 10; - tile = tile + (m_tilebank[tilebank] << 10); - int color = (data >> 12) & 0x0f; - - SET_TILE_INFO_MEMBER(1, tile, color + 0x20, 0); -} - -TILE_GET_INFO_MEMBER(crospang_state::get_fg_tile_info) -{ - int data = m_fg_videoram[tile_index]; - int tile = data & 0x03ff; - int tilebank = (data & 0x0c00) >> 10; - tile = tile + (m_tilebank[tilebank] << 10); - int color = (data >> 12) & 0x0f; - - SET_TILE_INFO_MEMBER(1, tile, color + 0x10, 0); -} - - -void crospang_state::video_start() -{ - m_bg_layer = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(crospang_state::get_bg_tile_info),this), TILEMAP_SCAN_ROWS, 16, 16, 32, 32); - m_fg_layer = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(FUNC(crospang_state::get_fg_tile_info),this), TILEMAP_SCAN_ROWS, 16, 16, 32, 32); - - m_fg_layer->set_transparent_pen(0); -} - -u32 crospang_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) -{ - m_bg_layer->draw(screen, bitmap, cliprect, 0, 0); - m_fg_layer->draw(screen, bitmap, cliprect, 0, 0); - m_sprgen->draw_sprites(bitmap, cliprect, m_spriteram, 0x400); - return 0; -} |