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tch/speedspin.cpp: consolidated driver in single file
This commit is contained in:
Ivan Vangelista
parent
0b06edd19d
commit
77b9e2de93
@ -1,5 +1,6 @@
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// license:BSD-3-Clause
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// copyright-holders:David Haywood, Farfetch'd
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// copyright-holders: David Haywood, Farfetch'd
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/*** DRIVER INFO & NOTES ******************************************************
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Speed Spin (c)1994 TCH
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driver by David Haywood & Farfetch'd
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@ -21,14 +22,6 @@ TODO:
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******************************************************************************/
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#include "emu.h"
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#include "speedspn.h"
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#include "cpu/z80/z80.h"
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#include "screen.h"
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#include "speaker.h"
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/*** README INFO **************************************************************
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ROMSET: speedspn
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@ -59,10 +52,188 @@ TCH-SS9.u34 " / AB2Bh
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******************************************************************************/
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#include "emu.h"
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#include "cpu/z80/z80.h"
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#include "machine/gen_latch.h"
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#include "sound/okim6295.h"
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#include "emupal.h"
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#include "screen.h"
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#include "speaker.h"
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#include "tilemap.h"
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// configurable logging
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#define LOG_PRGBANK (1U << 1)
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#define LOG_VIDRAMBANK (1U << 2)
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#define LOG_VIDEOFLAGS (1U << 3)
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//#define VERBOSE (LOG_GENERAL | LOG_PRGBANK | LOG_VIDRAMBANK | LOG_VIDEOFLAGS)
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#include "logmacro.h"
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#define LOGPRGBANK(...) LOGMASKED(LOG_PRGBANK, __VA_ARGS__)
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#define LOGVIDRAMBANK(...) LOGMASKED(LOG_VIDRAMBANK, __VA_ARGS__)
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#define LOGVIDEOFLAGS(...) LOGMASKED(LOG_VIDEOFLAGS, __VA_ARGS__)
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namespace {
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class speedspn_state : public driver_device
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{
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public:
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speedspn_state(const machine_config &mconfig, device_type type, const char *tag) :
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driver_device(mconfig, type, tag),
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m_maincpu(*this, "maincpu"),
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m_audiocpu(*this, "audiocpu"),
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m_gfxdecode(*this, "gfxdecode"),
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m_palette(*this, "palette"),
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m_prgbank(*this, "prgbank"),
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m_okibank(*this, "okibank"),
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m_videoview(*this, "videoview"),
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m_attram(*this, "attram"),
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m_spriteram(*this, "spriteram"),
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m_tileram(*this, "tileram")
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{ }
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void speedspn(machine_config &config);
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protected:
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virtual void machine_start() override;
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virtual void video_start() override;
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private:
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required_device<cpu_device> m_maincpu;
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required_device<cpu_device> m_audiocpu;
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required_device<gfxdecode_device> m_gfxdecode;
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required_device<palette_device> m_palette;
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required_memory_bank m_prgbank;
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required_memory_bank m_okibank;
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memory_view m_videoview;
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required_shared_ptr<uint8_t> m_attram;
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required_shared_ptr<uint8_t> m_spriteram;
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required_shared_ptr<uint8_t> m_tileram;
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tilemap_t *m_tilemap = nullptr;
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bool m_display_disable = false;
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uint8_t irq_ack_r();
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void rombank_w(uint8_t data);
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void tileram_w(offs_t offset, uint8_t data);
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void attram_w(offs_t offset, uint8_t data);
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void vidram_bank_w(uint8_t data);
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void display_disable_w(uint8_t data);
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void okibank_w(uint8_t data);
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TILE_GET_INFO_MEMBER(get_tile_info);
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uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
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void draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect);
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void main_io_map(address_map &map);
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void oki_map(address_map &map);
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void main_program_map(address_map &map);
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void sound_map(address_map &map);
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};
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// video
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TILE_GET_INFO_MEMBER(speedspn_state::get_tile_info)
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{
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int const code = m_tileram[tile_index * 2 + 1] | (m_tileram[tile_index * 2] << 8);
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int const attr = m_attram[tile_index ^ 0x400];
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tileinfo.set(0, code, attr & 0x3f, (attr & 0x80) ? TILE_FLIPX : 0);
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}
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void speedspn_state::video_start()
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{
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m_display_disable = false;
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m_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(speedspn_state::get_tile_info)), TILEMAP_SCAN_COLS, 8, 8, 64, 32);
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save_item(NAME(m_display_disable));
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}
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void speedspn_state::tileram_w(offs_t offset, uint8_t data)
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{
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m_tileram[offset] = data;
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m_tilemap->mark_tile_dirty(offset / 2);
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}
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void speedspn_state::attram_w(offs_t offset, uint8_t data)
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{
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m_attram[offset] = data;
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m_tilemap->mark_tile_dirty(offset ^ 0x400);
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}
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void speedspn_state::vidram_bank_w(uint8_t data)
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{
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LOGVIDRAMBANK("VidRam bank: %04x\n", data);
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m_videoview.select(data & 1);
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}
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void speedspn_state::display_disable_w(uint8_t data)
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{
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LOGVIDEOFLAGS("Global display: %u\n", data);
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m_display_disable = data & 1;
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}
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void speedspn_state::draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect )
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{
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gfx_element *gfx = m_gfxdecode->gfx(1);
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uint8_t *source = &m_spriteram[0];
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uint8_t *finish = source + 0x1000;
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while (source < finish)
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{
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int xpos = source[0];
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int tileno = source[1];
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int const attr = source[2];
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int const ypos = source[3];
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if (!attr && xpos) break; // end of sprite list marker?
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if (attr & 0x10) xpos += 0x100;
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xpos = 0x1f8 - xpos;
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tileno += ((attr & 0xe0) >> 5) * 0x100;
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int const color = attr & 0x0f;
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gfx->transpen(bitmap, cliprect,
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tileno,
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color,
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0, 0,
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xpos, ypos, 15);
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source += 4;
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}
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}
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uint32_t speedspn_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
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{
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if (m_display_disable)
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{
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bitmap.fill(m_palette->black_pen(), cliprect);
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return 0;
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}
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m_tilemap->set_scrollx(0, 0x100); // verify
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m_tilemap->draw(screen, bitmap, cliprect, 0, 0);
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draw_sprites(bitmap, cliprect);
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return 0;
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}
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// machine
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uint8_t speedspn_state::irq_ack_r()
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{
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// I think this simply acknowledges the IRQ #0, it's read within the handler and the
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// value is discarded
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// value is discarded
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return 0;
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}
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@ -70,7 +241,7 @@ void speedspn_state::rombank_w(uint8_t data)
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{
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if (data > 8)
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{
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popmessage ("Unmapped Bank Write %02x", data);
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LOGPRGBANK("Unmapped bank write %02x", data);
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data = 0;
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}
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m_prgbank->set_entry(data);
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@ -78,12 +249,6 @@ void speedspn_state::rombank_w(uint8_t data)
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/*** SOUND RELATED ***********************************************************/
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void speedspn_state::sound_w(uint8_t data)
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{
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m_soundlatch->write(data);
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m_audiocpu->set_input_line(0, HOLD_LINE);
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}
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void speedspn_state::okibank_w(uint8_t data)
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{
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m_okibank->set_entry(data & 3);
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@ -91,48 +256,50 @@ void speedspn_state::okibank_w(uint8_t data)
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/*** MEMORY MAPS *************************************************************/
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/* main cpu */
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// main CPU
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void speedspn_state::program_map(address_map &map)
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void speedspn_state::main_program_map(address_map &map)
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{
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map(0x0000, 0x7fff).rom();
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map(0x8000, 0x87ff).ram().w(m_palette, FUNC(palette_device::write8)).share("palette"); /* RAM COLOUR */
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map(0x8800, 0x8fff).ram().w(FUNC(speedspn_state::attram_w)).share("attram");
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map(0x9000, 0x9fff).rw(FUNC(speedspn_state::vidram_r), FUNC(speedspn_state::vidram_w)); /* RAM FIX / RAM OBJECTS (selected by bit 0 of port 17) */
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map(0x8000, 0x87ff).ram().w(m_palette, FUNC(palette_device::write8)).share("palette"); // RAM COLOUR
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map(0x8800, 0x8fff).ram().w(FUNC(speedspn_state::attram_w)).share(m_attram);
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map(0x9000, 0x9fff).view(m_videoview); // RAM FIX / RAM OBJECTS (selected by bit 0 of port 17)
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m_videoview[0](0x9000, 0x9fff).ram().w(FUNC(speedspn_state::tileram_w)).share(m_tileram);
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m_videoview[1](0x9000, 0x9fff).ram().share(m_spriteram);
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map(0xa000, 0xa7ff).ram();
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map(0xa800, 0xafff).ram();
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map(0xb000, 0xbfff).ram(); /* RAM PROGRAM */
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map(0xc000, 0xffff).bankr("prgbank"); /* banked ROM */
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map(0xb000, 0xbfff).ram(); // RAM PROGRAM
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map(0xc000, 0xffff).bankr(m_prgbank);
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}
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void speedspn_state::io_map(address_map &map)
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void speedspn_state::main_io_map(address_map &map)
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{
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map.global_mask(0xff);
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map(0x07, 0x07).w(FUNC(speedspn_state::display_disable_w));
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map(0x10, 0x10).portr("SYSTEM");
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map(0x11, 0x11).portr("P1");
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map(0x12, 0x12).portr("P2").w(FUNC(speedspn_state::rombank_w));
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map(0x13, 0x13).portr("DSW1").w(FUNC(speedspn_state::sound_w));
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map(0x13, 0x13).portr("DSW1").w("soundlatch", FUNC(generic_latch_8_device::write));
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map(0x14, 0x14).portr("DSW2");
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map(0x16, 0x16).r(FUNC(speedspn_state::irq_ack_r)); // @@@ could be watchdog, value is discarded
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map(0x17, 0x17).w(FUNC(speedspn_state::vidram_bank_w));
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}
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/* sound cpu */
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// sound CPU
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void speedspn_state::sound_map(address_map &map)
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{
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map(0x0000, 0x7fff).rom();
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map(0x8000, 0x87ff).ram();
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map(0x9000, 0x9000).w(FUNC(speedspn_state::okibank_w));
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map(0x9800, 0x9800).rw(m_oki, FUNC(okim6295_device::read), FUNC(okim6295_device::write));
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map(0xa000, 0xa000).r(m_soundlatch, FUNC(generic_latch_8_device::read));
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map(0x9800, 0x9800).rw("oki", FUNC(okim6295_device::read), FUNC(okim6295_device::write));
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map(0xa000, 0xa000).r("soundlatch", FUNC(generic_latch_8_device::read));
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}
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void speedspn_state::oki_map(address_map &map)
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{
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map(0x00000, 0x1ffff).rom();
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map(0x20000, 0x3ffff).bankr("okibank");
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map(0x20000, 0x3ffff).bankr(m_okibank);
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}
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/*** INPUT PORT **************************************************************/
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@ -255,15 +422,15 @@ static const gfx_layout speedspn_spritelayout =
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static GFXDECODE_START( gfx_speedspn )
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GFXDECODE_ENTRY( "gfx1", 0, speedspn_charlayout, 0x000, 0x40 )
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GFXDECODE_ENTRY( "gfx2", 0, speedspn_spritelayout, 0x000, 0x40 )
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GFXDECODE_ENTRY( "tiles", 0, speedspn_charlayout, 0x000, 0x40 )
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GFXDECODE_ENTRY( "sprites", 0, speedspn_spritelayout, 0x000, 0x40 )
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GFXDECODE_END
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/*** MACHINE DRIVER **********************************************************/
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void speedspn_state::machine_start()
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{
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/* is this weird banking some form of protection? */
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// is this weird banking some form of protection? TODO: 0x20000 isn't empty but isn't banked anywhere?
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uint8_t *rom = memregion("maincpu")->base();
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m_prgbank->configure_entry(0, &rom[0x28000]);
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m_prgbank->configure_entry(1, &rom[0x14000]);
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@ -283,16 +450,16 @@ void speedspn_state::machine_start()
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void speedspn_state::speedspn(machine_config &config)
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{
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/* basic machine hardware */
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Z80(config, m_maincpu, 6000000); /* 6 MHz */
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m_maincpu->set_addrmap(AS_PROGRAM, &speedspn_state::program_map);
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m_maincpu->set_addrmap(AS_IO, &speedspn_state::io_map);
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// basic machine hardware
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Z80(config, m_maincpu, 12_MHz_XTAL / 2); // 6 MHz
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m_maincpu->set_addrmap(AS_PROGRAM, &speedspn_state::main_program_map);
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m_maincpu->set_addrmap(AS_IO, &speedspn_state::main_io_map);
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m_maincpu->set_vblank_int("screen", FUNC(speedspn_state::irq0_line_hold));
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Z80(config, m_audiocpu, 6000000); /* 6 MHz */
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Z80(config, m_audiocpu, 12_MHz_XTAL / 2); // 6 MHz
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m_audiocpu->set_addrmap(AS_PROGRAM, &speedspn_state::sound_map);
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/* video hardware */
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// video hardware
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screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
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screen.set_refresh_hz(60);
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screen.set_vblank_time(ATTOSECONDS_IN_USEC(0));
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@ -304,40 +471,40 @@ void speedspn_state::speedspn(machine_config &config)
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GFXDECODE(config, m_gfxdecode, m_palette, gfx_speedspn);
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PALETTE(config, m_palette).set_format(palette_device::xRGB_444, 0x400);
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/* sound hardware */
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// sound hardware
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SPEAKER(config, "mono").front_center();
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GENERIC_LATCH_8(config, m_soundlatch);
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GENERIC_LATCH_8(config, "soundlatch").data_pending_callback().set_inputline(m_audiocpu, 0);
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OKIM6295(config, m_oki, 1122000, okim6295_device::PIN7_HIGH); // clock frequency & pin 7 not verified
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m_oki->add_route(ALL_OUTPUTS, "mono", 1.0);
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m_oki->set_addrmap(0, &speedspn_state::oki_map);
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okim6295_device &oki(OKIM6295(config, "oki", 1'122'000, okim6295_device::PIN7_HIGH)); // clock frequency & pin 7 not verified
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oki.add_route(ALL_OUTPUTS, "mono", 1.0);
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oki.set_addrmap(0, &speedspn_state::oki_map);
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}
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/*** ROM LOADING *************************************************************/
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ROM_START( speedspn )
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ROM_REGION( 0x080000, "maincpu", 0 ) /* CPU1 code */
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/* most of this is probably actually banked */
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ROM_LOAD( "tch-ss1.u78", 0x00000, 0x080000, CRC(41b6b45b) SHA1(d969119959db4cc3be50f188bfa41e4b4896eaca) )
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ROM_REGION( 0x80000, "maincpu", 0 )
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ROM_LOAD( "tch-ss1.u78", 0x00000, 0x80000, CRC(41b6b45b) SHA1(d969119959db4cc3be50f188bfa41e4b4896eaca) ) // banked
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ROM_REGION( 0x10000, "audiocpu", 0 ) /* CPU2 code */
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ROM_REGION( 0x10000, "audiocpu", 0 )
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ROM_LOAD( "tch-ss2.u96", 0x00000, 0x10000, CRC(4611fd0c) SHA1(b49ad6a8be6ccfef0b2ed187fb3b008fb7eeb2b5) ) // FIRST AND SECOND HALF IDENTICAL
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ROM_REGION( 0x080000, "oki", 0 ) /* Samples */
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ROM_LOAD( "tch-ss3.u95", 0x00000, 0x080000, CRC(1c9deb5e) SHA1(89f01a8e8bdb0eee47e9195b312d2e65d41d3548) )
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ROM_REGION( 0x80000, "oki", 0 ) // samples, banked
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ROM_LOAD( "tch-ss3.u95", 0x00000, 0x80000, CRC(1c9deb5e) SHA1(89f01a8e8bdb0eee47e9195b312d2e65d41d3548) )
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ROM_REGION( 0x80000, "gfx1", ROMREGION_INVERT ) /* GFX */
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ROM_LOAD( "tch-ss4.u70", 0x00000, 0x020000, CRC(41517859) SHA1(3c5102e41c5a70e02ed88ea43ca63edf13f4c1b9) )
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ROM_LOAD( "tch-ss5.u69", 0x20000, 0x020000, CRC(832b2f34) SHA1(7a3060869a9698c9ed4187b239a70e273de64e3c) )
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ROM_LOAD( "tch-ss6.u60", 0x40000, 0x020000, CRC(f1fd7289) SHA1(8950ef58efdffc45d68152257ca36aedf5ddf677) )
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ROM_LOAD( "tch-ss7.u59", 0x60000, 0x020000, CRC(c4958543) SHA1(c959b440801707c30a8968a1f44abe5442d03eff) )
|
||||
ROM_REGION( 0x80000, "tiles", ROMREGION_INVERT )
|
||||
ROM_LOAD( "tch-ss4.u70", 0x00000, 0x20000, CRC(41517859) SHA1(3c5102e41c5a70e02ed88ea43ca63edf13f4c1b9) )
|
||||
ROM_LOAD( "tch-ss5.u69", 0x20000, 0x20000, CRC(832b2f34) SHA1(7a3060869a9698c9ed4187b239a70e273de64e3c) )
|
||||
ROM_LOAD( "tch-ss6.u60", 0x40000, 0x20000, CRC(f1fd7289) SHA1(8950ef58efdffc45d68152257ca36aedf5ddf677) )
|
||||
ROM_LOAD( "tch-ss7.u59", 0x60000, 0x20000, CRC(c4958543) SHA1(c959b440801707c30a8968a1f44abe5442d03eff) )
|
||||
|
||||
ROM_REGION( 0x40000, "gfx2", ROMREGION_INVERT ) /* GFX */
|
||||
ROM_LOAD( "tch-ss8.u39", 0x00000, 0x020000, CRC(2f27b16d) SHA1(7cc017fa08573f8a9d94d017abb987f8288bcd29) )
|
||||
ROM_LOAD( "tch-ss9.u34", 0x20000, 0x020000, CRC(c372f8ec) SHA1(514bef0859c0adfd9cdd22864230fc83e9b1962d) )
|
||||
ROM_REGION( 0x40000, "sprites", ROMREGION_INVERT )
|
||||
ROM_LOAD( "tch-ss8.u39", 0x00000, 0x20000, CRC(2f27b16d) SHA1(7cc017fa08573f8a9d94d017abb987f8288bcd29) )
|
||||
ROM_LOAD( "tch-ss9.u34", 0x20000, 0x20000, CRC(c372f8ec) SHA1(514bef0859c0adfd9cdd22864230fc83e9b1962d) )
|
||||
ROM_END
|
||||
|
||||
} // anonymous namespace
|
||||
|
||||
|
||||
/*** GAME DRIVERS ************************************************************/
|
||||
|
||||
@ -1,70 +0,0 @@
|
||||
// license:BSD-3-Clause
|
||||
// copyright-holders:David Haywood, Farfetch'd
|
||||
#ifndef MAME_INCLUDES_SPEEDSPN_H
|
||||
#define MAME_INCLUDES_SPEEDSPN_H
|
||||
|
||||
#pragma once
|
||||
|
||||
#include "machine/gen_latch.h"
|
||||
#include "sound/okim6295.h"
|
||||
#include "emupal.h"
|
||||
#include "tilemap.h"
|
||||
|
||||
class speedspn_state : public driver_device
|
||||
{
|
||||
public:
|
||||
speedspn_state(const machine_config &mconfig, device_type type, const char *tag) :
|
||||
driver_device(mconfig, type, tag),
|
||||
m_maincpu(*this, "maincpu"),
|
||||
m_audiocpu(*this, "audiocpu"),
|
||||
m_oki(*this, "oki"),
|
||||
m_gfxdecode(*this, "gfxdecode"),
|
||||
m_palette(*this, "palette"),
|
||||
m_soundlatch(*this, "soundlatch"),
|
||||
m_prgbank(*this, "prgbank"),
|
||||
m_okibank(*this, "okibank"),
|
||||
m_attram(*this, "attram")
|
||||
{ }
|
||||
|
||||
void speedspn(machine_config &config);
|
||||
|
||||
protected:
|
||||
virtual void machine_start() override;
|
||||
virtual void video_start() override;
|
||||
|
||||
private:
|
||||
required_device<cpu_device> m_maincpu;
|
||||
required_device<cpu_device> m_audiocpu;
|
||||
required_device<okim6295_device> m_oki;
|
||||
required_device<gfxdecode_device> m_gfxdecode;
|
||||
required_device<palette_device> m_palette;
|
||||
required_device<generic_latch_8_device> m_soundlatch;
|
||||
|
||||
required_memory_bank m_prgbank;
|
||||
required_memory_bank m_okibank;
|
||||
required_shared_ptr<uint8_t> m_attram;
|
||||
|
||||
tilemap_t *m_tilemap = nullptr;
|
||||
bool m_display_disable = false;
|
||||
uint32_t m_bank_vidram = 0;
|
||||
std::vector<uint8_t> m_vidram;
|
||||
uint8_t irq_ack_r();
|
||||
void rombank_w(uint8_t data);
|
||||
void sound_w(uint8_t data);
|
||||
void vidram_w(offs_t offset, uint8_t data);
|
||||
void attram_w(offs_t offset, uint8_t data);
|
||||
uint8_t vidram_r(offs_t offset);
|
||||
void vidram_bank_w(uint8_t data);
|
||||
void display_disable_w(uint8_t data);
|
||||
void okibank_w(uint8_t data);
|
||||
TILE_GET_INFO_MEMBER(get_tile_info);
|
||||
uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
|
||||
void draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect);
|
||||
|
||||
void io_map(address_map &map);
|
||||
void oki_map(address_map &map);
|
||||
void program_map(address_map &map);
|
||||
void sound_map(address_map &map);
|
||||
};
|
||||
|
||||
#endif // MAME_INCLUDES_SPEEDSPN_H
|
||||
@ -1,117 +0,0 @@
|
||||
// license:BSD-3-Clause
|
||||
// copyright-holders:David Haywood, Farfetch'd
|
||||
/* Speed Spin video, see driver file for notes */
|
||||
|
||||
#include "emu.h"
|
||||
#include "speedspn.h"
|
||||
|
||||
|
||||
TILE_GET_INFO_MEMBER(speedspn_state::get_tile_info)
|
||||
{
|
||||
int code = m_vidram[tile_index*2+1] | (m_vidram[tile_index*2] << 8);
|
||||
int attr = m_attram[tile_index^0x400];
|
||||
|
||||
tileinfo.set(0,code,attr & 0x3f,(attr & 0x80) ? TILE_FLIPX : 0);
|
||||
}
|
||||
|
||||
void speedspn_state::video_start()
|
||||
{
|
||||
m_display_disable = false;
|
||||
m_bank_vidram = 0;
|
||||
m_vidram.resize(0x1000 * 2);
|
||||
memset(&m_vidram[0], 0, 0x1000*2);
|
||||
m_tilemap = &machine().tilemap().create(*m_gfxdecode, tilemap_get_info_delegate(*this, FUNC(speedspn_state::get_tile_info)), TILEMAP_SCAN_COLS, 8, 8, 64, 32);
|
||||
|
||||
save_item(NAME(m_display_disable));
|
||||
save_item(NAME(m_bank_vidram));
|
||||
save_item(NAME(m_vidram));
|
||||
}
|
||||
|
||||
void speedspn_state::vidram_w(offs_t offset, uint8_t data)
|
||||
{
|
||||
m_vidram[offset + m_bank_vidram] = data;
|
||||
|
||||
if (m_bank_vidram == 0)
|
||||
m_tilemap->mark_tile_dirty(offset/2);
|
||||
}
|
||||
|
||||
void speedspn_state::attram_w(offs_t offset, uint8_t data)
|
||||
{
|
||||
m_attram[offset] = data;
|
||||
|
||||
m_tilemap->mark_tile_dirty(offset^0x400);
|
||||
}
|
||||
|
||||
uint8_t speedspn_state::vidram_r(offs_t offset)
|
||||
{
|
||||
return m_vidram[offset + m_bank_vidram];
|
||||
}
|
||||
|
||||
void speedspn_state::vidram_bank_w(uint8_t data)
|
||||
{
|
||||
// logerror("VidRam Bank: %04x\n", data);
|
||||
m_bank_vidram = data & 1;
|
||||
m_bank_vidram *= 0x1000;
|
||||
}
|
||||
|
||||
void speedspn_state::display_disable_w(uint8_t data)
|
||||
{
|
||||
// logerror("Global display: %u\n", data);
|
||||
m_display_disable = data & 1;
|
||||
}
|
||||
|
||||
|
||||
void speedspn_state::draw_sprites(bitmap_ind16 &bitmap, const rectangle &cliprect )
|
||||
{
|
||||
gfx_element *gfx = m_gfxdecode->gfx(1);
|
||||
uint8_t *source = &m_vidram[0x1000];
|
||||
uint8_t *finish = source + 0x1000;
|
||||
|
||||
while( source<finish )
|
||||
{
|
||||
int xpos = source[0];
|
||||
int tileno = source[1];
|
||||
int attr = source[2];
|
||||
int ypos = source[3];
|
||||
int color;
|
||||
|
||||
if (!attr && xpos) break; // end of sprite list marker?
|
||||
|
||||
if (attr&0x10) xpos +=0x100;
|
||||
|
||||
xpos = 0x1f8-xpos;
|
||||
tileno += ((attr & 0xe0) >> 5) * 0x100;
|
||||
color = attr & 0x0f;
|
||||
|
||||
gfx->transpen(bitmap,cliprect,
|
||||
tileno,
|
||||
color,
|
||||
0,0,
|
||||
xpos,ypos,15);
|
||||
|
||||
source +=4;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
uint32_t speedspn_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
|
||||
{
|
||||
if (m_display_disable)
|
||||
{
|
||||
bitmap.fill(m_palette->black_pen(), cliprect);
|
||||
return 0;
|
||||
}
|
||||
|
||||
#if 0
|
||||
{
|
||||
FILE* f;
|
||||
f = fopen("vidram.bin","wb");
|
||||
fwrite(m_vidram, 1, 0x1000 * 2, f);
|
||||
fclose(f);
|
||||
}
|
||||
#endif
|
||||
m_tilemap->set_scrollx(0, 0x100); // verify
|
||||
m_tilemap->draw(screen, bitmap, cliprect, 0,0);
|
||||
draw_sprites(bitmap,cliprect);
|
||||
return 0;
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user