diff options
Diffstat (limited to 'src/mame/epoch/scv.cpp')
-rw-r--r-- | src/mame/epoch/scv.cpp | 748 |
1 files changed, 338 insertions, 410 deletions
diff --git a/src/mame/epoch/scv.cpp b/src/mame/epoch/scv.cpp index 3c080552040..450d369b67f 100644 --- a/src/mame/epoch/scv.cpp +++ b/src/mame/epoch/scv.cpp @@ -4,11 +4,15 @@ Driver for Epoch Super Cassette Vision +TODO: +- verify video clock in European units. +- verify raw video parameters. + ***************************************************************************/ #include "emu.h" +#include "cpu/upd177x/upd177x.h" #include "cpu/upd7810/upd7810.h" -#include "sound/upd1771.h" #include "bus/scv/slot.h" #include "bus/scv/rom.h" #include "emupal.h" @@ -38,179 +42,151 @@ public: void scv_pal(machine_config &config); protected: - virtual void machine_start() override; - virtual void machine_reset() override; + virtual void machine_start() override ATTR_COLD; + virtual void machine_reset() override ATTR_COLD; TIMER_CALLBACK_MEMBER(vblank_update); + TIMER_CALLBACK_MEMBER(pa_w_update); private: - void porta_w(uint8_t data); - uint8_t portb_r(); - uint8_t portc_r(); - void portc_w(uint8_t data); - void upd1771_ack_w(int state); void scv_palette(palette_device &palette) const; - uint32_t screen_update_scv(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); + u32 screen_update_scv(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); + + void draw_sprite_part(bitmap_ind16 &bitmap, u8 x, u8 y, u8 pat, u8 col); + void draw_sprite(bitmap_ind16 &bitmap, u8 x, u8 y, u8 tile_idx, u8 col, bool left, bool right, bool top, bool bottom, u8 clip_y); + void draw_sprites(bitmap_ind16 &bitmap); + void draw_text(bitmap_ind16 &bitmap, u8 x, u8 y, u8 *char_data, u8 fg, uint8_t bg); + void draw_semi_graph(bitmap_ind16 &bitmap, u8 x, u8 y, u8 data, u8 fg); + void draw_block_graph(bitmap_ind16 &bitmap, u8 x, u8 y, u8 col); - void plot_sprite_part(bitmap_ind16 &bitmap, uint8_t x, uint8_t y, uint8_t pat, uint8_t col, uint8_t screen_sprite_start_line); - void draw_sprite(bitmap_ind16 &bitmap, uint8_t x, uint8_t y, uint8_t tile_idx, uint8_t col, uint8_t left, uint8_t right, uint8_t top, uint8_t bottom, uint8_t clip_y, uint8_t screen_sprite_start_line); - void draw_text(bitmap_ind16 &bitmap, uint8_t x, uint8_t y, uint8_t *char_data, uint8_t fg, uint8_t bg); - void draw_semi_graph(bitmap_ind16 &bitmap, uint8_t x, uint8_t y, uint8_t data, uint8_t fg); - void draw_block_graph(bitmap_ind16 &bitmap, uint8_t x, uint8_t y, uint8_t col); + void scv_mem(address_map &map) ATTR_COLD; - void scv_mem(address_map &map); + static const u8 s_spr_2col_lut0[16]; + static const u8 s_spr_2col_lut1[16]; - uint8_t m_porta; - uint8_t m_portc; + u8 m_porta; + u8 m_portc; emu_timer *m_vb_timer; - required_shared_ptr<uint8_t> m_videoram; - required_device<cpu_device> m_maincpu; + required_shared_ptr<u8> m_videoram; + required_device<upd7801_device> m_maincpu; required_device<screen_device> m_screen; - required_device<upd1771c_device> m_upd1771c; + required_device<upd1771c_cpu_device> m_upd1771c; required_device<scv_cart_slot_device> m_cart; required_ioport_array<8> m_pa; required_ioport m_pc0; required_memory_region m_charrom; + emu_timer *m_pa_w_timer; }; +const u8 scv_state::s_spr_2col_lut0[16] = {0, 15, 12, 13, 10, 11, 8, 9, 6, 7, 4, 5, 2, 3, 1, 1}; +const u8 scv_state::s_spr_2col_lut1[16] = {0, 1, 8, 11, 2, 3, 10, 9, 4, 5, 12, 13, 6, 7, 14, 15}; + + void scv_state::scv_mem(address_map &map) { map(0x0000, 0x0fff).rom(); // BIOS - map(0x2000, 0x3403).ram().share("videoram"); // VRAM + 4 registers - map(0x3600, 0x3600).w(m_upd1771c, FUNC(upd1771c_device::write)); + map(0x2000, 0x3403).ram().share(m_videoram); // VRAM + 4 registers + map(0x3600, 0x3600).lw8(NAME([this] (u8 data) { + // With the current cores there are sync issues between writing and clearing PA in scv kungfurd when playing back adpcm. + // During a reset an OUT PA gets executed just around the same time when the main cpu is writing to PA. + // Since the OUT PA completes while the external write to PA is still in progress the external write to PA wins. + m_pa_w_timer->adjust(m_upd1771c->cycles_to_attotime(8), data); + })); - map(0x8000, 0xff7f).rw(m_cart, FUNC(scv_cart_slot_device::read_cart), FUNC(scv_cart_slot_device::write_cart)); // cartridge + // 8000 - ff7f - Cartridge + // ff80 - ffff - CPU internal RAM } -static INPUT_PORTS_START( scv ) - PORT_START( "PA.0" ) - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(1) PORT_8WAY - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_PLAYER(1) PORT_8WAY - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(1) - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_PLAYER(2) PORT_8WAY - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_PLAYER(2) PORT_8WAY - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_PLAYER(2) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) - - PORT_START( "PA.1" ) - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(1) PORT_8WAY - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(1) PORT_8WAY - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(1) - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_PLAYER(2) PORT_8WAY - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_PLAYER(2) PORT_8WAY - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_PLAYER(2) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_UNUSED ) - - PORT_START( "PA.2" ) - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_NAME("0") PORT_CODE(KEYCODE_0_PAD) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_NAME("1") PORT_CODE(KEYCODE_1_PAD) - - PORT_START( "PA.3" ) - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_NAME("2") PORT_CODE(KEYCODE_2_PAD) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_NAME("3") PORT_CODE(KEYCODE_3_PAD) - - PORT_START( "PA.4" ) - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_NAME("4") PORT_CODE(KEYCODE_4_PAD) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_NAME("5") PORT_CODE(KEYCODE_5_PAD) - - PORT_START( "PA.5" ) - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_NAME("6") PORT_CODE(KEYCODE_6_PAD) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_NAME("7") PORT_CODE(KEYCODE_7_PAD) - - PORT_START( "PA.6" ) - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_NAME("8") PORT_CODE(KEYCODE_8_PAD) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_NAME("9") PORT_CODE(KEYCODE_9_PAD) - - PORT_START( "PA.7" ) - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_UNUSED ) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_NAME("Cl") PORT_CODE(KEYCODE_MINUS_PAD) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_KEYPAD ) PORT_NAME("En") PORT_CODE(KEYCODE_PLUS_PAD) - - PORT_START( "PC0" ) - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_OTHER ) PORT_NAME(DEF_STR(Pause)) PORT_CODE(KEYCODE_O) +static INPUT_PORTS_START(scv) + PORT_START("PA.0") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT) PORT_PLAYER(1) PORT_8WAY + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_UP) PORT_PLAYER(1) PORT_8WAY + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_PLAYER(1) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT) PORT_PLAYER(2) PORT_8WAY + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_UP) PORT_PLAYER(2) PORT_8WAY + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_BUTTON1) PORT_PLAYER(2) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED) + + PORT_START("PA.1" ) + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN) PORT_PLAYER(1) PORT_8WAY + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT) PORT_PLAYER(1) PORT_8WAY + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_BUTTON2) PORT_PLAYER(1) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN) PORT_PLAYER(2) PORT_8WAY + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT) PORT_PLAYER(2) PORT_8WAY + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_BUTTON2) PORT_PLAYER(2) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED) + + PORT_START("PA.2") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("0") PORT_CODE(KEYCODE_0_PAD) + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("1") PORT_CODE(KEYCODE_1_PAD) + + PORT_START("PA.3") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("2") PORT_CODE(KEYCODE_2_PAD) + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("3") PORT_CODE(KEYCODE_3_PAD) + + PORT_START("PA.4") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("4") PORT_CODE(KEYCODE_4_PAD) + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("5") PORT_CODE(KEYCODE_5_PAD) + + PORT_START("PA.5") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("6") PORT_CODE(KEYCODE_6_PAD) + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("7") PORT_CODE(KEYCODE_7_PAD) + + PORT_START("PA.6") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("8") PORT_CODE(KEYCODE_8_PAD) + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("9") PORT_CODE(KEYCODE_9_PAD) + + PORT_START("PA.7") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED) + PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("Cl") PORT_CODE(KEYCODE_MINUS_PAD) + PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYPAD) PORT_NAME("En") PORT_CODE(KEYCODE_PLUS_PAD) + + PORT_START("PC0") + PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_OTHER) PORT_NAME(DEF_STR(Pause)) PORT_CODE(KEYCODE_O) INPUT_PORTS_END -void scv_state::porta_w(uint8_t data) -{ - m_porta = data; -} - - -uint8_t scv_state::portb_r() -{ - uint8_t data = 0xff; - - for (int i = 0; i < 8; i++) - { - if (!BIT(m_porta, i)) - data &= m_pa[i]->read(); - } - - return data; -} - - -uint8_t scv_state::portc_r() -{ - uint8_t data = m_portc; - - data = (data & 0xfe) | (m_pc0->read() & 0x01); - - return data; -} - - -void scv_state::portc_w(uint8_t data) -{ - //logerror("%04x: scv_portc_w: data = 0x%02x\n", m_maincpu->pc(), data ); - m_portc = data; - m_cart->write_bank(m_portc); - m_upd1771c->pcm_write(m_portc & 0x08); -} - - void scv_state::scv_palette(palette_device &palette) const { /* @@ -263,11 +239,11 @@ void scv_state::scv_palette(palette_device &palette) const } -TIMER_CALLBACK_MEMBER( scv_state::vblank_update ) +TIMER_CALLBACK_MEMBER(scv_state::vblank_update) { int vpos = m_screen->vpos(); - switch ( vpos ) + switch (vpos) { case 240: m_maincpu->set_input_line(UPD7810_INTF2, ASSERT_LINE); @@ -281,316 +257,248 @@ TIMER_CALLBACK_MEMBER( scv_state::vblank_update ) } -inline void scv_state::plot_sprite_part( bitmap_ind16 &bitmap, uint8_t x, uint8_t y, uint8_t pat, uint8_t col, uint8_t screen_sprite_start_line ) +void scv_state::draw_sprite_part(bitmap_ind16 &bitmap, u8 x, u8 y, u8 pat, u8 col) { - if ((x >= 4) && ((y + 2) >= screen_sprite_start_line)) + if (x >= 4) { x -= 4; - if (pat & 0x08) + if (BIT(pat, 3)) bitmap.pix(y + 2, x) = col; - if (pat & 0x04 && x < 255 ) + if (BIT(pat, 2) && x < 255) bitmap.pix(y + 2, x + 1) = col; - if (pat & 0x02 && x < 254) + if (BIT(pat, 1) && x < 254) bitmap.pix(y + 2, x + 2) = col; - if (pat & 0x01 && x < 253) + if (BIT(pat, 0) && x < 253) bitmap.pix(y + 2, x + 3) = col; } } -inline void scv_state::draw_sprite( bitmap_ind16 &bitmap, uint8_t x, uint8_t y, uint8_t tile_idx, uint8_t col, uint8_t left, uint8_t right, uint8_t top, uint8_t bottom, uint8_t clip_y, uint8_t screen_sprite_start_line ) +void scv_state::draw_sprite(bitmap_ind16 &bitmap, u8 x, u8 y, u8 tile_idx, u8 col, bool left, bool right, bool top, bool bottom, u8 clip_y) { y += clip_y * 2; for (int j = clip_y * 4; j < 32; j += 4, y += 2) { - uint8_t const pat0 = m_videoram[tile_idx * 32 + j + 0]; - uint8_t const pat1 = m_videoram[tile_idx * 32 + j + 1]; - uint8_t const pat2 = m_videoram[tile_idx * 32 + j + 2]; - uint8_t const pat3 = m_videoram[tile_idx * 32 + j + 3]; - if ((top && (j < 16)) || (bottom && (j >= 16))) { if (left) { - plot_sprite_part(bitmap, x , y, pat0 >> 4, col, screen_sprite_start_line); - plot_sprite_part(bitmap, x + 4, y, pat1 >> 4, col, screen_sprite_start_line); + const u8 pat0 = m_videoram[tile_idx * 32 + j + 0]; + const u8 pat1 = m_videoram[tile_idx * 32 + j + 1]; + + draw_sprite_part(bitmap, x , y, pat0 >> 4, col); + draw_sprite_part(bitmap, x + 4, y, pat1 >> 4, col); + draw_sprite_part(bitmap, x , y + 1, pat0 & 0x0f, col); + draw_sprite_part(bitmap, x + 4, y + 1, pat1 & 0x0f, col); } if (right) { - plot_sprite_part(bitmap, x + 8, y, pat2 >> 4, col, screen_sprite_start_line); - plot_sprite_part(bitmap, x + 12, y, pat3 >> 4, col, screen_sprite_start_line); + const u8 pat2 = m_videoram[tile_idx * 32 + j + 2]; + const u8 pat3 = m_videoram[tile_idx * 32 + j + 3]; + + draw_sprite_part(bitmap, x + 8, y, pat2 >> 4, col); + draw_sprite_part(bitmap, x + 12, y, pat3 >> 4, col); + draw_sprite_part(bitmap, x + 8, y + 1, pat2 & 0x0f, col); + draw_sprite_part(bitmap, x + 12, y + 1, pat3 & 0x0f, col); } + } + } +} - if (left) + +void scv_state::draw_sprites(bitmap_ind16 &bitmap) +{ + const u8 num_sprites = BIT(m_videoram[0x1400], 2) ? 64 : 128; + + for (int i = 0; i < num_sprites; i++) + { + u8 spr_y = m_videoram[0x1200 + i * 4] & 0xfe; + u8 y_32 = BIT(m_videoram[0x1200 + i * 4], 0); // Xx32 sprite + u8 clip = m_videoram[0x1201 + i * 4] >> 4; + u8 col = m_videoram[0x1201 + i * 4] & 0x0f; + u8 spr_x = m_videoram[0x1202 + i * 4] & 0xfe; + u8 x_32 = BIT(m_videoram[0x1202 + i * 4], 0); // 32xX sprite + u8 tile_idx = m_videoram[0x1203 + i * 4] & 0x7f; + const bool half = BIT(m_videoram[0x1203 + i * 4], 7); + bool left = true; + bool right = true; + bool top = true; + bool bottom = true; + + if (!col || !spr_y) + continue; + + if (half) + { + if (BIT(tile_idx, 6)) { - plot_sprite_part(bitmap, x , y + 1, pat0 & 0x0f, col, screen_sprite_start_line); - plot_sprite_part(bitmap, x + 4, y + 1, pat1 & 0x0f, col, screen_sprite_start_line); + if (y_32) + { + spr_y -= 8; + top = false; + y_32 = 0; + } + else + bottom = false; } - if (right) + if (x_32) { - plot_sprite_part(bitmap, x + 8, y + 1, pat2 & 0x0f, col, screen_sprite_start_line); - plot_sprite_part(bitmap, x + 12, y + 1, pat3 & 0x0f, col, screen_sprite_start_line); + spr_x -= 8; + left = false; + x_32 = 0; + } + else + right = false; + } + + if (BIT(m_videoram[0x1400], 5) && BIT(i, 5)) + { + // 2 color sprite handling + draw_sprite(bitmap, spr_x, spr_y, tile_idx, col, left, right, top, bottom, clip); + if (x_32 || y_32) + { + col = BIT(i, 4) ? s_spr_2col_lut1[col] : s_spr_2col_lut0[col]; + tile_idx ^= (8 * x_32 + y_32); + + draw_sprite(bitmap, spr_x, spr_y, tile_idx, col, left, right, top, bottom, clip); + } + } + else + { + // regular sprite handling + draw_sprite(bitmap, spr_x, spr_y, tile_idx, col, left, right, top, bottom, clip); + if (x_32) + draw_sprite(bitmap, spr_x + 16, spr_y, tile_idx | 8, col, 1, 1, top, bottom, clip); + + if (y_32) + { + clip = BIT(clip, 3) ? (clip & 0x07) : 0; + draw_sprite(bitmap, spr_x, spr_y + 16, tile_idx | 1, col, left, right, 1, 1, clip); + if (x_32) + draw_sprite(bitmap, spr_x + 16, spr_y + 16, tile_idx | 9, col, 1, 1, 1, 1, clip); } } } } -inline void scv_state::draw_text( bitmap_ind16 &bitmap, uint8_t x, uint8_t y, uint8_t *char_data, uint8_t fg, uint8_t bg ) +void scv_state::draw_text(bitmap_ind16 &bitmap, u8 x, u8 y, u8 *char_data, u8 fg, u8 bg) { - for ( int i = 0; i < 8; i++ ) + for (int i = 0; i < 8; i++) { - uint8_t const d = char_data[i]; - - bitmap.pix(y + i, x + 0 ) = ( d & 0x80 ) ? fg : bg; - bitmap.pix(y + i, x + 1 ) = ( d & 0x40 ) ? fg : bg; - bitmap.pix(y + i, x + 2 ) = ( d & 0x20 ) ? fg : bg; - bitmap.pix(y + i, x + 3 ) = ( d & 0x10 ) ? fg : bg; - bitmap.pix(y + i, x + 4 ) = ( d & 0x08 ) ? fg : bg; - bitmap.pix(y + i, x + 5 ) = ( d & 0x04 ) ? fg : bg; - bitmap.pix(y + i, x + 6 ) = ( d & 0x02 ) ? fg : bg; - bitmap.pix(y + i, x + 7 ) = ( d & 0x01 ) ? fg : bg; - } + const u8 d = char_data[i]; - for ( int i = 8; i < 16; i++ ) - { - bitmap.pix(y + i, x + 0 ) = bg; - bitmap.pix(y + i, x + 1 ) = bg; - bitmap.pix(y + i, x + 2 ) = bg; - bitmap.pix(y + i, x + 3 ) = bg; - bitmap.pix(y + i, x + 4 ) = bg; - bitmap.pix(y + i, x + 5 ) = bg; - bitmap.pix(y + i, x + 6 ) = bg; - bitmap.pix(y + i, x + 7 ) = bg; + for (int j = 0; j < 8; j++) + bitmap.pix(y + i, x + j) = (BIT(d, 7 - j)) ? fg : bg; } + for (int i = 8; i < 16; i++) + for (int j = 0; j < 8; j++) + bitmap.pix(y + i, x + j) = bg; } -inline void scv_state::draw_semi_graph( bitmap_ind16 &bitmap, uint8_t x, uint8_t y, uint8_t data, uint8_t fg ) +void scv_state::draw_semi_graph(bitmap_ind16 &bitmap, u8 x, u8 y, u8 data, u8 fg) { - if ( ! data ) + if (!data) return; - for ( int i = 0; i < 4; i++ ) - { - bitmap.pix(y + i, x + 0) = fg; - bitmap.pix(y + i, x + 1) = fg; - bitmap.pix(y + i, x + 2) = fg; - bitmap.pix(y + i, x + 3) = fg; - } + for (int i = 0; i < 4; i++) + for (int j = 0; j < 4; j++) + bitmap.pix(y + i, x + j) = fg; } -inline void scv_state::draw_block_graph( bitmap_ind16 &bitmap, uint8_t x, uint8_t y, uint8_t col ) +void scv_state::draw_block_graph(bitmap_ind16 &bitmap, u8 x, u8 y, u8 col) { - for ( int i = 0; i < 8; i++ ) - { - bitmap.pix(y + i, x + 0) = col; - bitmap.pix(y + i, x + 1) = col; - bitmap.pix(y + i, x + 2) = col; - bitmap.pix(y + i, x + 3) = col; - bitmap.pix(y + i, x + 4) = col; - bitmap.pix(y + i, x + 5) = col; - bitmap.pix(y + i, x + 6) = col; - bitmap.pix(y + i, x + 7) = col; - } + if (!col) + return; + + for (int i = 0; i < 8; i++) + for (int j = 0; j < 8; j++) + bitmap.pix(y + i, x + j) = col; } -uint32_t scv_state::screen_update_scv(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) +u32 scv_state::screen_update_scv(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) { - int x, y; - uint8_t fg = m_videoram[0x1403] >> 4; - uint8_t bg = m_videoram[0x1403] & 0x0f; - uint8_t gr_fg = m_videoram[0x1401] >> 4; - uint8_t gr_bg = m_videoram[0x1401] & 0x0f; - int clip_x = ( m_videoram[0x1402] & 0x0f ) * 2; - int clip_y = m_videoram[0x1402] >> 4; - - /* Clear the screen */ - bitmap.fill(gr_bg , cliprect); - - /* Draw background */ - for ( y = 0; y < 16; y++ ) + const u8 fg = m_videoram[0x1403] >> 4; + const u8 bg = m_videoram[0x1403] & 0x0f; + const u8 gr_fg = m_videoram[0x1401] >> 4; + const u8 gr_bg = m_videoram[0x1401] & 0x0f; + const int clip_x = (m_videoram[0x1402] & 0x0f) * 2; + const int clip_y = m_videoram[0x1402] >> 4; + + // Clear the screen + bitmap.fill(gr_bg, cliprect); + + // Draw background + for (int y = 0; y < 16; y++) { - int text_y = 0; + const bool text_y = (y < clip_y) ? !BIT(m_videoram[0x1400], 7) : BIT(m_videoram[0x1400], 7); - if ( y < clip_y ) + for (int x = 0; x < 32; x++) { - text_y = ( m_videoram[0x1400] & 0x80 ) ? 0 : 1; - } - else - { - text_y = ( m_videoram[0x1400] & 0x80 ) ? 1 : 0; - } + const bool text_x = (x < clip_x) ? !BIT(m_videoram[0x1400], 6) : BIT(m_videoram[0x1400], 6); + const u8 d = m_videoram[0x1000 + y * 32 + x]; - for ( x = 0; x < 32; x++ ) - { - int text_x = 0; - uint8_t d = m_videoram[ 0x1000 + y * 32 + x ]; - - if ( x < clip_x ) + if (text_x && text_y) { - text_x = ( m_videoram[0x1400] & 0x40 ) ? 0 : 1; + // Text mode + uint8_t *char_data = m_charrom->base() + (d & 0x7f) * 8; + draw_text(bitmap, x * 8, y * 16, char_data, fg, bg); } else { - text_x = ( m_videoram[0x1400] & 0x40 ) ? 1 : 0; - } - - if ( text_x && text_y ) - { - /* Text mode */ - uint8_t *char_data = m_charrom->base() + ( d & 0x7f ) * 8; - draw_text( bitmap, x * 8, y * 16, char_data, fg, bg ); - } - else - { - switch ( m_videoram[0x1400] & 0x03 ) + switch (m_videoram[0x1400] & 0x03) { - case 0x01: /* Semi graphics mode */ - draw_semi_graph( bitmap, x * 8 , y * 16 , d & 0x80, gr_fg ); - draw_semi_graph( bitmap, x * 8 + 4, y * 16 , d & 0x40, gr_fg ); - draw_semi_graph( bitmap, x * 8 , y * 16 + 4, d & 0x20, gr_fg ); - draw_semi_graph( bitmap, x * 8 + 4, y * 16 + 4, d & 0x10, gr_fg ); - draw_semi_graph( bitmap, x * 8 , y * 16 + 8, d & 0x08, gr_fg ); - draw_semi_graph( bitmap, x * 8 + 4, y * 16 + 8, d & 0x04, gr_fg ); - draw_semi_graph( bitmap, x * 8 , y * 16 + 12, d & 0x02, gr_fg ); - draw_semi_graph( bitmap, x * 8 + 4, y * 16 + 12, d & 0x01, gr_fg ); + case 0x01: // Semi graphics mode + draw_semi_graph(bitmap, x * 8 , y * 16 , d & 0x80, gr_fg); + draw_semi_graph(bitmap, x * 8 + 4, y * 16 , d & 0x40, gr_fg); + draw_semi_graph(bitmap, x * 8 , y * 16 + 4, d & 0x20, gr_fg); + draw_semi_graph(bitmap, x * 8 + 4, y * 16 + 4, d & 0x10, gr_fg); + draw_semi_graph(bitmap, x * 8 , y * 16 + 8, d & 0x08, gr_fg); + draw_semi_graph(bitmap, x * 8 + 4, y * 16 + 8, d & 0x04, gr_fg); + draw_semi_graph(bitmap, x * 8 , y * 16 + 12, d & 0x02, gr_fg); + draw_semi_graph(bitmap, x * 8 + 4, y * 16 + 12, d & 0x01, gr_fg); break; - case 0x03: /* Block graphics mode */ - draw_block_graph( bitmap, x * 8, y * 16 , d >> 4 ); - draw_block_graph( bitmap, x * 8, y * 16 + 8, d & 0x0f ); + case 0x03: // Block graphics mode + draw_block_graph(bitmap, x * 8, y * 16 , d >> 4); + draw_block_graph(bitmap, x * 8, y * 16 + 8, d & 0x0f); break; - default: /* Otherwise draw nothing? */ + default: // Otherwise draw nothing? break; } } } } - /* Draw sprites if enabled */ - if ( m_videoram[0x1400] & 0x10 ) - { - uint8_t screen_start_sprite_line = ( ( ( m_videoram[0x1400] & 0xf7 ) == 0x17 ) && ( ( m_videoram[0x1402] & 0xef ) == 0x4f ) ) ? 21 + 32 : 0 ; - int i; - - for ( i = 0; i < 128; i++ ) - { - uint8_t spr_y = m_videoram[ 0x1200 + i * 4 ] & 0xfe; - uint8_t y_32 = m_videoram[ 0x1200 + i * 4 ] & 0x01; /* Xx32 sprite */ - uint8_t clip = m_videoram[ 0x1201 + i * 4 ] >> 4; - uint8_t col = m_videoram[ 0x1201 + i * 4 ] & 0x0f; - uint8_t spr_x = m_videoram[ 0x1202 + i * 4 ] & 0xfe; - uint8_t x_32 = m_videoram[ 0x1202 + i * 4 ] & 0x01; /* 32xX sprite */ - uint8_t tile_idx = m_videoram[ 0x1203 + i * 4 ] & 0x7f; - uint8_t half = m_videoram[ 0x1203 + i * 4] & 0x80; - uint8_t left = 1; - uint8_t right = 1; - uint8_t top = 1; - uint8_t bottom = 1; - - if ( !col ) - { - continue; - } - - if ( !spr_y ) - { - continue; - } - - if ( half ) - { - if ( tile_idx & 0x40 ) - { - if ( y_32 ) - { - spr_y -= 8; - top = 0; - bottom = 1; - y_32 = 0; - } - else - { - top = 1; - bottom = 0; - } - } - if ( x_32 ) - { - spr_x -= 8; - left = 0; - right = 1; - x_32 = 0; - } - else - { - left = 1; - right = 0; - } - } - - /* Check if 2 color sprites are enabled */ - if ( ( m_videoram[0x1400] & 0x20 ) && ( i & 0x20 ) ) - { - /* 2 color sprite handling */ - draw_sprite( bitmap, spr_x, spr_y, tile_idx, col, left, right, top, bottom, clip, screen_start_sprite_line ); - if ( x_32 || y_32 ) - { - static const uint8_t spr_2col_lut0[16] = { 0, 15, 12, 13, 10, 11, 8, 9, 6, 7, 4, 5, 2, 3, 1, 1 }; - static const uint8_t spr_2col_lut1[16] = { 0, 1, 8, 11, 2, 3, 10, 9, 4, 5, 12, 13, 6, 7, 14, 15 }; - - draw_sprite( bitmap, spr_x, spr_y, tile_idx ^ ( 8 * x_32 + y_32 ), ( i & 0x40 ) ? spr_2col_lut1[col] : spr_2col_lut0[col], left, right, top, bottom, clip, screen_start_sprite_line ); - } - } - else - { - /* regular sprite handling */ - draw_sprite( bitmap, spr_x, spr_y, tile_idx, col, left, right, top, bottom, clip, screen_start_sprite_line ); - if ( x_32 ) - { - draw_sprite( bitmap, spr_x + 16, spr_y, tile_idx | 8, col, 1, 1, top, bottom, clip, screen_start_sprite_line ); - } - - if ( y_32 ) - { - clip = ( clip & 0x08 ) ? ( clip & 0x07 ) : 0; - draw_sprite( bitmap, spr_x, spr_y + 16, tile_idx | 1, col, left, right, 1, 1, clip, screen_start_sprite_line ); - if ( x_32 ) - { - draw_sprite( bitmap, spr_x + 16, spr_y + 16, tile_idx | 9, col, 1, 1, 1, 1, clip, screen_start_sprite_line ); - } - } - } - } - } + if (BIT(m_videoram[0x1400], 4)) + draw_sprites(bitmap); return 0; } -void scv_state::upd1771_ack_w(int state) +TIMER_CALLBACK_MEMBER(scv_state::pa_w_update) { - m_maincpu->set_input_line(UPD7810_INTF1, (state) ? ASSERT_LINE : CLEAR_LINE); + m_upd1771c->pa_w(param); } + void scv_state::machine_start() { m_vb_timer = timer_alloc(FUNC(scv_state::vblank_update), this); + m_pa_w_timer = timer_alloc(FUNC(scv_state::pa_w_update), this); save_item(NAME(m_porta)); save_item(NAME(m_portc)); - if (m_cart->exists()) - m_cart->save_ram(); - } @@ -600,22 +508,22 @@ void scv_state::machine_reset() } -/* F4 Character Displayer */ +// F4 Character Displayer static const gfx_layout scv_charlayout = { - 8, 8, /* 8 x 8 characters */ - 128, /* 128 characters */ - 1, /* 1 bits per pixel */ - { 0 }, /* no bitplanes */ - /* x offsets */ - { 0, 1, 2, 3, 4, 5, 6, 7 }, - /* y offsets */ - { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 }, - 8*8 /* every char takes 8 bytes */ + 8, 8, // 8 x 8 characters + 128, // 128 characters + 1, // 1 bits per pixel + {0}, // no bitplanes + // x offsets + {0, 1, 2, 3, 4, 5, 6, 7}, + // y offsets + {0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8}, + 8*8 // every char takes 8 bytes }; -static GFXDECODE_START( gfx_scv ) - GFXDECODE_ENTRY( "charrom", 0x0000, scv_charlayout, 0, 8 ) +static GFXDECODE_START(gfx_scv) + GFXDECODE_ENTRY("charrom", 0x0000, scv_charlayout, 0, 8) GFXDECODE_END @@ -632,31 +540,47 @@ static void scv_cart(device_slot_interface &device) void scv_state::scv(machine_config &config) { - upd7801_device &upd(UPD7801(config, m_maincpu, 4_MHz_XTAL)); - upd.set_addrmap(AS_PROGRAM, &scv_state::scv_mem); - upd.pa_out_cb().set(FUNC(scv_state::porta_w)); - upd.pb_in_cb().set(FUNC(scv_state::portb_r)); - upd.pc_in_cb().set(FUNC(scv_state::portc_r)); - upd.pc_out_cb().set(FUNC(scv_state::portc_w)); - - /* Video chip is EPOCH TV-1 */ + UPD7801(config, m_maincpu, 4_MHz_XTAL); + m_maincpu->set_addrmap(AS_PROGRAM, &scv_state::scv_mem); + m_maincpu->pa_out_cb().set([this] (u8 data) { m_porta = data; }); + m_maincpu->pb_in_cb().set([this] () { + u8 data = 0xff; + + for (int i = 0; i < 8; i++) + if (!BIT(m_porta, i)) + data &= m_pa[i]->read(); + + return data; + }); + m_maincpu->pc_in_cb().set([this] () { + return BIT(m_pc0->read(), 0); + }); + m_maincpu->pc_out_cb().set([this] (u8 data) { + m_portc = data; + m_cart->write_bank(m_portc); // Only bits 5 & 6 are exposed to the cartridge? + m_upd1771c->set_input_line(INPUT_LINE_RESET, BIT(m_portc, 3) ? CLEAR_LINE : ASSERT_LINE); + }); + config.set_perfect_quantum(m_maincpu); + + // Video chip is EPOCH TV-1 SCREEN(config, m_screen, SCREEN_TYPE_RASTER); - m_screen->set_raw(XTAL(14'318'181)/2, 456, 24, 24+192, 262, 23, 23+222); // TODO: Verify + m_screen->set_raw(XTAL(14'318'181)/2, 456, 24, 24+192, 262, 23, 23+222); // Clock verified. TODO: Verify rest of the parameters m_screen->set_screen_update(FUNC(scv_state::screen_update_scv)); m_screen->set_palette("palette"); GFXDECODE(config, "gfxdecode", "palette", gfx_scv); PALETTE(config, "palette", FUNC(scv_state::scv_palette), 16); - /* Sound is generated by UPD1771C clocked at XTAL(6'000'000) */ + // Sound is generated by UPD1771C clocked at XTAL(6'000'000) SPEAKER(config, "mono").front_center(); UPD1771C(config, m_upd1771c, 6_MHz_XTAL); - m_upd1771c->ack_handler().set(FUNC(scv_state::upd1771_ack_w)); - m_upd1771c->add_route(ALL_OUTPUTS, "mono", 1.00); + m_upd1771c->pb_out_cb().set([this] (u8 data) { m_maincpu->set_input_line(UPD7810_INTF1, BIT(data, 0) ? ASSERT_LINE : CLEAR_LINE); }); + m_upd1771c->add_route(ALL_OUTPUTS, "mono", 0.70); SCV_CART_SLOT(config, m_cart, scv_cart, nullptr); + m_cart->set_address_space(m_maincpu, AS_PROGRAM); - /* Software lists */ + // Software lists SOFTWARE_LIST(config, "cart_list").set_original("scv"); } @@ -665,34 +589,38 @@ void scv_state::scv_pal(machine_config &config) { scv(config); - m_maincpu->set_clock(3780000); - // Video chip is EPOCH TV-1A - m_screen->set_raw(13.4_MHz_XTAL/2, 456, 24, 24+192, 342, 23, 23+222); // TODO: Verify + m_screen->set_raw(13.4_MHz_XTAL/2, 456, 24, 24+192, 294, 23, 23+222); // TODO: Verify clock and video parameters } -/* The same bios is used in both the NTSC and PAL versions of the console */ -ROM_START( scv ) - ROM_REGION( 0x1000, "maincpu", 0 ) - ROM_LOAD( "upd7801g.s01", 0, 0x1000, CRC(7ac06182) SHA1(6e89d1227581c76441a53d605f9e324185f1da33) ) +// The same bios is used in both the NTSC and PAL versions of the console +ROM_START(scv) + ROM_REGION(0x1000, "maincpu", 0) + ROM_LOAD("upd7801g.s01", 0, 0x1000, CRC(7ac06182) SHA1(6e89d1227581c76441a53d605f9e324185f1da33)) + + ROM_REGION(0x400, "charrom", 0) + ROM_LOAD("epochtv.chr.s02", 0, 0x400, BAD_DUMP CRC(db521533) SHA1(40b4e44838c35191f115437a14f200f052e71509)) - ROM_REGION( 0x400, "charrom", 0 ) - ROM_LOAD( "epochtv.chr", 0, 0x400, BAD_DUMP CRC(db521533) SHA1(40b4e44838c35191f115437a14f200f052e71509) ) + ROM_REGION(0x400, "upd1771c", 0) + ROM_LOAD16_WORD("upd1771c-017.s03", 0, 0x400, CRC(975bd68d) SHA1(e777217c622331677ac1d6520a741d48ad9133c0)) ROM_END -ROM_START( scv_pal ) - ROM_REGION( 0x1000, "maincpu", 0 ) - ROM_LOAD( "upd7801g.s01", 0, 0x1000, CRC(7ac06182) SHA1(6e89d1227581c76441a53d605f9e324185f1da33) ) +ROM_START(scv_pal) + ROM_REGION(0x1000, "maincpu", 0) + ROM_LOAD("upd7801g.s01", 0, 0x1000, CRC(7ac06182) SHA1(6e89d1227581c76441a53d605f9e324185f1da33)) + + ROM_REGION(0x400, "charrom", 0) + ROM_LOAD("epochtv.chr.s02", 0, 0x400, BAD_DUMP CRC(db521533) SHA1(40b4e44838c35191f115437a14f200f052e71509)) - ROM_REGION( 0x400, "charrom", 0 ) - ROM_LOAD( "epochtv.chr", 0, 0x400, BAD_DUMP CRC(db521533) SHA1(40b4e44838c35191f115437a14f200f052e71509) ) + ROM_REGION(0x400, "upd1771c", 0) + ROM_LOAD16_WORD("upd1771c-017.s03", 0, 0x400, CRC(975bd68d) SHA1(e777217c622331677ac1d6520a741d48ad9133c0)) ROM_END } // anonymous namespace -/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ -CONS( 1984, scv, 0, 0, scv, scv, scv_state, empty_init, "Epoch", "Super Cassette Vision", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE ) -CONS( 198?, scv_pal, scv, 0, scv_pal, scv, scv_state, empty_init, "Yeno", "Super Cassette Vision (PAL)", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE ) +/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ +CONS(1984, scv, 0, 0, scv, scv, scv_state, empty_init, "Epoch", "Super Cassette Vision", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE) +CONS(198?, scv_pal, scv, 0, scv_pal, scv, scv_state, empty_init, "Yeno", "Super Cassette Vision (PAL)", MACHINE_IMPERFECT_SOUND | MACHINE_SUPPORTS_SAVE) |