diff options
Diffstat (limited to 'src/mame/drivers/exerion.cpp')
-rw-r--r-- | src/mame/drivers/exerion.cpp | 625 |
1 files changed, 0 insertions, 625 deletions
diff --git a/src/mame/drivers/exerion.cpp b/src/mame/drivers/exerion.cpp deleted file mode 100644 index f89a3242dd4..00000000000 --- a/src/mame/drivers/exerion.cpp +++ /dev/null @@ -1,625 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Aaron Giles -/*************************************************************************** - - Jaleco Exerion hardware - -**************************************************************************** - - Exerion is a unique driver in that it has idiosyncrasies that are straight - out of Bizarro World. I submit for your approval: - - * The mystery reads from $d802 - timer-based protection? - * The freakish graphics encoding scheme, which no other MAME-supported game uses - * The sprite-ram, and all the funky parameters that go along with it - - -Stephh's notes (based on the games Z80 code and some tests) : - -1) 'exerion' - - - The coin insertion routine (code at 0x0066) is buggy as you get a credit - on first coin after initialisation even if you need more than 1 coin for 1 credit : - * when coinage is set to 2C_1C, you get a credit when inserting - 1, 2, 4, 6 ... multiples of 2 coins - * when coinage is set to 3C_1C, you get a credit when inserting - 1, 3, 6, 9 ... multiples of 3 coins - * when coinage is set to 4C_1C, you get a credit when inserting - 1, 4, 8, 12 ... multiples of 4 coins - * when coinage is set to 5C_1C, you get a credit when inserting - 1, 5, 10, 15 ... multiples of 5 coins - - According to the Dip Switches sheet, difficulty is handled by DSW0 bits 5 and 6. - In fact, bit 6 determines the overall difficulty (0x40 = OFF easy - 0x00 = ON hard) - while bit 5 determines enemies' number of bullets (0x20 = OFF for less bullets and - 0x00 = ON for more bullets). - - When starting a 1 or 2 players game, 2 checksums are computed (code at 0x00e4) : - one from 0x05f0 to 0x06ee (stored at 0x6030), one from 0x00d8 to 0x01d6 (stored - at 0x6031). Contents of 0x0625 is also stored to 0x6032. - - Each time before attract mode sequence starts, a checksum is computed from 0x0000 - to 0x1fff (code at 0x28b8) if 17th score in the high-score table is not 0. - If checksum doesn't match the hardcoded value (0xb5), you get one more credit - and you are allowed to continue the game with an extra life (score, charge and - level are not reset to original values). - - At the beginning of each life of each player, a checksum is computed from 0x4100 - to 0x4dff (code at 0x07d8) if 1st score in the high-score table is >= 80000. - If checksum doesn't match the hardcoded value (0x63), you get 255 credits ! - Notice that the displayed number of credits won't be correct as the game - isn't suppose to allow more than 9 credits. - - In a 2 players game, when player changes, if player it was player 2 turn, - values from 0x6030 to 0x6032 (see above) are compared with hard-coded values - (code at 0x04c8). If they don't match respectively 0xfe, 0xb3 and 0x4c, - and if 9th score in the high-score table is not 0, the game resets ! - - Before entering player's initials, a checksum is computed from 0x5f00 to 0x5fff - (code at 0x5bd0) if player has reached level 6 (2nd kind of enemies after bonus - stage). If checksum doesn't match the hardcoded value (0x9a), the game resets ! - - There is sort of protection routine at 0x4120 which has an effect when - player loses a life on reaching first bonus stage or after. If values read - from 0x6008 to 0x600b don't match values from ROM area 0x33c0-0x33ff, - the game resets. See 'exerion_protection_r' read handler. - - There is an unknown routine at 0x5f70 which is called when the game boots - which reads value from 0x600c and see if it matches a hardcoded value (0xbe). - If they don't match, the game resets after displaying the high-scores table. - - There is another unknown routine at 0x414e which is called when a game is over - which reads value from 0x600c and see if it matches value from ROM area - 0x4000-0x400f based on internal timer value for a game at 0x604a. If they don't - match, its only effect is to set lives to 0, which is always the case when the - game is over, so it doesn't seem to have any real effect. - Was it supposed to be called at another time ? - - The routine at 0x5f90 writes to addresses 0x6008-0x600c values read from AY port A - (one write after one read). This routine is called by the 2 unknown routines. - -2) 'exeriont' - - - The coin insertion routine is fixed in this set (see the subttle changes - in the code from 0x0077 to 0x0082). - - The routine at 0x28b8 is the same as in 'exerion' (same hardcoded value). - - The routine at 0x07d8 is the same as in 'exerion' (same hardcoded value). - - The routine at 0x04c8 is the same as in 'exerion' (same hardcoded values). - - The routine at 0x5bd0 is the same as in 'exerion' (same hardcoded value). - - The routine at 0x4120 is the same as in 'exerion', but data from 0x33c0 to 0x33ff - is slightly different : - - address exerion exeriont - 0x33c1: 0x3e 0x36 - 0x33c2: 0x37 0x32 - 0x33c8: 0x76 0x7e - 0x33ca: 0x32 0x26 - 0x33cb: 0x34 0x1e - 0x33d5: 0x07 0x3f - 0x33fc: 0x76 0x40 - 0x33fd: 0x37 0x00 - 0x33fe: 0x32 0x00 - 0x33ff: 0x26 0x00 - - - The routine at 0x5f70 is similar to the one in 'exerion' (hardcoded value = 0x9e). - - The routine at 0x414e is the same as in 'exerion', but data from 0x4000 to 0x400f - is slightly different : - - address exerion exeriont - 0x4002: 0xb2 0x9e - 0x400f: 0xbe 0x9e - - - The routine at 0x5f90 is the same as in 'exerion'. - -3) 'exerionb' - - - This set is based on 'exerion' as the coin insertion routine at 0x0066 - (and as a consequence the bug) is the same. - - The routine at 0x28b8 has been patched, so you can never see the "continue" feature. - - The routine at 0x07d8 has been patched, so you can never get 255 credits. - - The routine at 0x04c8 and the computed values from 0x6030 to 0x6032 are surprisingly - the same as in 'exerion'. - - The routine at 0x5bd0 has been patched, so the game can't reset. - - The "protection" routine at 0x4120 has been patched, so the game can't reset. - - The first unknown routine at 0x5f70 has been patched, so the game can't reset. - - The second unknown routine at 0x414e has been patched, so lives can't be set to 0. - - The routine at 0x5f90 is completely different : it reads values from AY port A, - but nothing is written to addresses 0x6008-0x600c, and there are lots of writes - to AY port B (0xd001) due to extra code at 0x0050 and extra data at 0x0040. - -***************************************************************************/ - -#include "emu.h" -#include "includes/exerion.h" - -#include "cpu/z80/z80.h" -#include "machine/gen_latch.h" -#include "sound/ay8910.h" -#include "speaker.h" - - -/************************************* - * - * Interrupts & inputs - * - *************************************/ - -/* Players inputs are muxed at 0xa000 */ -CUSTOM_INPUT_MEMBER(exerion_state::exerion_controls_r) -{ - static const char *const inname[2] = { "P1", "P2" }; - return ioport(inname[m_cocktail_flip])->read() & 0x3f; -} - - -INPUT_CHANGED_MEMBER(exerion_state::coin_inserted) -{ - /* coin insertion causes an NMI */ - m_maincpu->set_input_line(INPUT_LINE_NMI, newval ? CLEAR_LINE : ASSERT_LINE); -} - - - -/************************************* - * - * Protection?? - * - *************************************/ - -/* This is the first of many Exerion "features". No clue if it's */ -/* protection or some sort of timer. */ -READ8_MEMBER(exerion_state::exerion_porta_r) -{ - m_porta ^= 0x40; - return m_porta; -} - - -WRITE8_MEMBER(exerion_state::exerion_portb_w) -{ - /* pull the expected value from the ROM */ - m_porta = memregion("maincpu")->base()[0x5f76]; - m_portb = data; - - logerror("Port B = %02X\n", data); -} - - -READ8_MEMBER(exerion_state::exerion_protection_r) -{ - if (m_maincpu->pc() == 0x4143) - return memregion("maincpu")->base()[0x33c0 + (m_main_ram[0xd] << 2) + offset]; - else - return m_main_ram[0x8 + offset]; -} - - - -/************************************* - * - * Main CPU memory handlers - * - *************************************/ - -void exerion_state::main_map(address_map &map) -{ - map(0x0000, 0x5fff).rom(); - map(0x6000, 0x67ff).ram().share("main_ram"); - map(0x6008, 0x600b).r(FUNC(exerion_state::exerion_protection_r)); - map(0x8000, 0x87ff).ram().share("videoram"); - map(0x8800, 0x887f).ram().share("spriteram"); - map(0x8880, 0x8bff).ram(); - map(0xa000, 0xa000).portr("IN0"); - map(0xa800, 0xa800).portr("DSW0"); - map(0xb000, 0xb000).portr("DSW1"); - map(0xc000, 0xc000).w(FUNC(exerion_state::exerion_videoreg_w)); - map(0xc800, 0xc800).w("soundlatch", FUNC(generic_latch_8_device::write)); - map(0xd000, 0xd001).w("ay1", FUNC(ay8910_device::address_data_w)); - map(0xd800, 0xd801).w("ay2", FUNC(ay8910_device::address_data_w)); - map(0xd802, 0xd802).r("ay2", FUNC(ay8910_device::data_r)); -} - - - -/************************************* - * - * Sub CPU memory handlers - * - *************************************/ - -void exerion_state::sub_map(address_map &map) -{ - map(0x0000, 0x1fff).rom(); - map(0x4000, 0x47ff).ram(); - map(0x6000, 0x6000).r("soundlatch", FUNC(generic_latch_8_device::read)); - map(0x8000, 0x800c).w(FUNC(exerion_state::exerion_video_latch_w)); - map(0xa000, 0xa000).r(FUNC(exerion_state::exerion_video_timing_r)); -} - - - -/************************************* - * - * Port definitions - * - *************************************/ - -/* verified from Z80 code */ -static INPUT_PORTS_START( exerion ) - PORT_START("IN0") - PORT_BIT( 0x3f, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_CUSTOM_MEMBER(exerion_state, exerion_controls_r) - PORT_BIT( 0x40, IP_ACTIVE_LOW, IPT_START1 ) - PORT_BIT( 0x80, IP_ACTIVE_LOW, IPT_START2 ) - - PORT_START("DSW0") - PORT_DIPNAME( 0x07, 0x02, DEF_STR( Lives ) ) - PORT_DIPSETTING( 0x00, "1" ) - PORT_DIPSETTING( 0x01, "2" ) - PORT_DIPSETTING( 0x02, "3" ) - PORT_DIPSETTING( 0x03, "4" ) - PORT_DIPSETTING( 0x04, "5" ) -// PORT_DIPSETTING( 0x05, "5" ) /* duplicated setting */ -// PORT_DIPSETTING( 0x06, "5" ) /* duplicated setting */ - PORT_DIPSETTING( 0x07, "254 (Cheat)") - PORT_DIPNAME( 0x18, 0x00, DEF_STR( Bonus_Life ) ) - PORT_DIPSETTING( 0x00, "10000" ) - PORT_DIPSETTING( 0x08, "20000" ) - PORT_DIPSETTING( 0x10, "30000" ) - PORT_DIPSETTING( 0x18, "40000" ) - PORT_DIPNAME( 0x60, 0x00, DEF_STR( Difficulty ) ) /* see notes */ - PORT_DIPSETTING( 0x00, DEF_STR( Easy ) ) - PORT_DIPSETTING( 0x20, DEF_STR( Medium ) ) - PORT_DIPSETTING( 0x40, DEF_STR( Hard ) ) - PORT_DIPSETTING( 0x60, DEF_STR( Hardest ) ) - PORT_DIPNAME( 0x80, 0x00, DEF_STR( Cabinet ) ) - PORT_DIPSETTING( 0x00, DEF_STR( Upright ) ) - PORT_DIPSETTING( 0x80, DEF_STR( Cocktail ) ) - - PORT_START("DSW1") - PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_VBLANK("screen") - PORT_DIPNAME( 0x0e, 0x00, DEF_STR( Coinage ) ) /* see notes */ - PORT_DIPSETTING( 0x0e, DEF_STR( 5C_1C ) ) - PORT_DIPSETTING( 0x0a, DEF_STR( 4C_1C ) ) - PORT_DIPSETTING( 0x06, DEF_STR( 3C_1C ) ) - PORT_DIPSETTING( 0x02, DEF_STR( 2C_1C ) ) - PORT_DIPSETTING( 0x00, DEF_STR( 1C_1C ) ) - PORT_DIPSETTING( 0x04, DEF_STR( 1C_2C ) ) - PORT_DIPSETTING( 0x08, DEF_STR( 1C_3C ) ) - PORT_DIPSETTING( 0x0c, DEF_STR( 1C_4C ) ) - PORT_BIT( 0xf0, IP_ACTIVE_LOW, IPT_UNUSED ) - - PORT_START("COIN") - PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_COIN1 ) PORT_CHANGED_MEMBER(DEVICE_SELF, exerion_state,coin_inserted, 0) - - PORT_START("P1") /* fake input port */ - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) - - PORT_START("P2") /* fake input port */ - PORT_BIT( 0x01, IP_ACTIVE_LOW, IPT_JOYSTICK_UP ) PORT_8WAY PORT_COCKTAIL - PORT_BIT( 0x02, IP_ACTIVE_LOW, IPT_JOYSTICK_DOWN ) PORT_8WAY PORT_COCKTAIL - PORT_BIT( 0x04, IP_ACTIVE_LOW, IPT_JOYSTICK_RIGHT ) PORT_8WAY PORT_COCKTAIL - PORT_BIT( 0x08, IP_ACTIVE_LOW, IPT_JOYSTICK_LEFT ) PORT_8WAY PORT_COCKTAIL - PORT_BIT( 0x10, IP_ACTIVE_LOW, IPT_BUTTON1 ) PORT_COCKTAIL - PORT_BIT( 0x20, IP_ACTIVE_LOW, IPT_BUTTON2 ) PORT_COCKTAIL -INPUT_PORTS_END - - - -/************************************* - * - * Graphics layouts - * - *************************************/ - -static const gfx_layout charlayout = -{ - 8,8, - RGN_FRAC(1,1), - 2, - { 0, 4 }, - { 3, 2, 1, 0, 8+3, 8+2, 8+1, 8+0 }, - { 16*0, 16*1, 16*2, 16*3, 16*4, 16*5, 16*6, 16*7 }, - 16*8 -}; - - -/* 16 x 16 sprites -- requires reorganizing characters in init_exerion() */ -static const gfx_layout spritelayout = -{ - 16,16, - RGN_FRAC(1,1), - 2, - { 0, 4 }, - { 3, 2, 1, 0, 8+3, 8+2, 8+1, 8+0, - 16+3, 16+2, 16+1, 16+0, 24+3, 24+2, 24+1, 24+0 }, - { 32*0, 32*1, 32*2, 32*3, 32*4, 32*5, 32*6, 32*7, - 32*8, 32*9, 32*10, 32*11, 32*12, 32*13, 32*14, 32*15 }, - 64*8 -}; - - -static GFXDECODE_START( gfx_exerion ) - GFXDECODE_ENTRY( "gfx1", 0, charlayout, 0, 64 ) - GFXDECODE_ENTRY( "gfx2", 0, spritelayout, 256, 64 ) - GFXDECODE_SCALE( "gfx2", 0, spritelayout, 256, 64, 2, 2 ) -GFXDECODE_END - - -/************************************* - * - * Machine drivers - * - *************************************/ - -void exerion_state::machine_start() -{ - save_item(NAME(m_porta)); - save_item(NAME(m_portb)); - save_item(NAME(m_cocktail_flip)); - save_item(NAME(m_char_palette)); - save_item(NAME(m_sprite_palette)); - save_item(NAME(m_char_bank)); - save_item(NAME(m_background_latches)); -} - -void exerion_state::machine_reset() -{ - int i; - - m_porta = 0; - m_portb = 0; - m_cocktail_flip = 0; - m_char_palette = 0; - m_sprite_palette = 0; - m_char_bank = 0; - - for (i = 0; i < 13; i++) - m_background_latches[i] = 0; -} - -void exerion_state::exerion(machine_config &config) -{ - Z80(config, m_maincpu, EXERION_CPU_CLOCK); - m_maincpu->set_addrmap(AS_PROGRAM, &exerion_state::main_map); - - z80_device &sub(Z80(config, "sub", EXERION_CPU_CLOCK)); - sub.set_addrmap(AS_PROGRAM, &exerion_state::sub_map); - - - /* video hardware */ - SCREEN(config, m_screen, SCREEN_TYPE_RASTER); - m_screen->set_raw(EXERION_PIXEL_CLOCK, EXERION_HTOTAL, EXERION_HBEND, EXERION_HBSTART, EXERION_VTOTAL, EXERION_VBEND, EXERION_VBSTART); - m_screen->set_screen_update(FUNC(exerion_state::screen_update_exerion)); - m_screen->set_palette(m_palette); - - GFXDECODE(config, m_gfxdecode, m_palette, gfx_exerion); - PALETTE(config, m_palette, FUNC(exerion_state::exerion_palette), 256*3, 32); - - /* audio hardware */ - SPEAKER(config, "mono").front_center(); - - GENERIC_LATCH_8(config, "soundlatch"); - - AY8910(config, "ay1", EXERION_AY8910_CLOCK).add_route(ALL_OUTPUTS, "mono", 0.30); - - ay8910_device &ay2(AY8910(config, "ay2", EXERION_AY8910_CLOCK)); - ay2.port_a_read_callback().set(FUNC(exerion_state::exerion_porta_r)); - ay2.port_b_write_callback().set(FUNC(exerion_state::exerion_portb_w)); - ay2.add_route(ALL_OUTPUTS, "mono", 0.30); -} - -void exerion_state::irion(machine_config &config) -{ - exerion(config); - config.device_remove("sub"); -} - - - -/************************************* - * - * ROM definitions - * - *************************************/ - -ROM_START( exerion ) - ROM_REGION( 0x6000, "maincpu", 0 ) - ROM_LOAD( "exerion.07", 0x0000, 0x2000, CRC(4c78d57d) SHA1(ac702e9ad2bc05493fb1355858667c31c36acfe4) ) - ROM_LOAD( "exerion.08", 0x2000, 0x2000, CRC(dcadc1df) SHA1(91388f617cfaa4289ca1c84c697fcfdd8834ae15) ) - ROM_LOAD( "exerion.09", 0x4000, 0x2000, CRC(34cc4d14) SHA1(511c9de038f7bcaf6f7c96f2cbbe50a80673fa72) ) - - ROM_REGION( 0x2000, "sub", 0 ) /* 64k for the second CPU */ - ROM_LOAD( "exerion.05", 0x0000, 0x2000, CRC(32f6bff5) SHA1(a4d0289f9d1d9eea7ca9a32a0616af48da74b401) ) - - ROM_REGION( 0x02000, "gfx1", 0 ) - ROM_LOAD( "exerion.06", 0x00000, 0x2000, CRC(435a85a4) SHA1(f6846bfee11df754405d4d796e7d8ac0321b6eb6) ) /* fg chars */ - - ROM_REGION( 0x04000, "gfx2", 0 ) - ROM_LOAD( "exerion.11", 0x00000, 0x2000, CRC(f0633a09) SHA1(8989bcb12abadde34777f7c189cfa6e2dfe92d62) ) /* sprites */ - ROM_LOAD( "exerion.10", 0x02000, 0x2000, CRC(80312de0) SHA1(4fa3bb9d5c62e41a54e8909f8d3b47637137e913) ) - - ROM_REGION( 0x08000, "gfx3", 0 ) - ROM_LOAD( "exerion.03", 0x00000, 0x2000, CRC(790595b8) SHA1(8016ac2394b25db38e962bcff4805380082f6683) ) /* bg data */ - ROM_LOAD( "exerion.04", 0x02000, 0x2000, CRC(d7abd0b9) SHA1(ca6413ecd324cf84e11b703a4eda2c1e6d28ff15) ) - ROM_LOAD( "exerion.01", 0x04000, 0x2000, CRC(5bb755cb) SHA1(ec92c518c116a78dbb23381468cefb3f930212cc) ) - ROM_LOAD( "exerion.02", 0x06000, 0x2000, CRC(a7ecbb70) SHA1(3c359d5bb21290a45d3eb18fea2b1f9439b931be) ) - - ROM_REGION( 0x0420, "proms", 0 ) - ROM_LOAD( "exerion.e1", 0x0000, 0x0020, CRC(2befcc20) SHA1(a24d3f691413378fde545a6ddcef7e5118e74019) ) /* palette */ - ROM_LOAD( "exerion.i8", 0x0020, 0x0100, CRC(31db0e08) SHA1(1041a778e86d3fe6f057cf40a0a08b30760f3887) ) /* fg char lookup table */ - ROM_LOAD( "exerion.h10", 0x0120, 0x0100, CRC(63b4c555) SHA1(30243041be4fa77ada71e8b29d721cad51640c29) ) /* sprite lookup table */ - ROM_LOAD( "exerion.i3", 0x0220, 0x0100, CRC(fe72ab79) SHA1(048a72e6db4768df687df927acaa70ef906b3dc0) ) /* bg char lookup table */ - ROM_LOAD( "exerion.k4", 0x0320, 0x0100, CRC(ffc2ba43) SHA1(03be1c41d6ac3fc11439caef04ef5ffa60d6aec4) ) /* bg char mixer */ -ROM_END - - -ROM_START( exeriont ) - ROM_REGION( 0x6000, "maincpu", 0 ) - ROM_LOAD( "prom5.4p", 0x0000, 0x4000, CRC(58b4dc1b) SHA1(3e34d1eda0b0537dac1062e96259d4cc7c64049c) ) - ROM_LOAD( "prom6.4s", 0x4000, 0x2000, CRC(fca18c2d) SHA1(31077dada3ed4aa2e26af933f589e01e0c71e5cd) ) - - ROM_REGION( 0x2000, "sub", 0 ) /* 64k for the second CPU */ - ROM_LOAD( "exerion.05", 0x0000, 0x2000, CRC(32f6bff5) SHA1(a4d0289f9d1d9eea7ca9a32a0616af48da74b401) ) - - ROM_REGION( 0x02000, "gfx1", 0 ) - ROM_LOAD( "exerion.06", 0x00000, 0x2000, CRC(435a85a4) SHA1(f6846bfee11df754405d4d796e7d8ac0321b6eb6) ) /* fg chars */ - - ROM_REGION( 0x04000, "gfx2", 0 ) - ROM_LOAD( "exerion.11", 0x00000, 0x2000, CRC(f0633a09) SHA1(8989bcb12abadde34777f7c189cfa6e2dfe92d62) ) /* sprites */ - ROM_LOAD( "exerion.10", 0x02000, 0x2000, CRC(80312de0) SHA1(4fa3bb9d5c62e41a54e8909f8d3b47637137e913) ) - - ROM_REGION( 0x08000, "gfx3", 0 ) - ROM_LOAD( "exerion.03", 0x00000, 0x2000, CRC(790595b8) SHA1(8016ac2394b25db38e962bcff4805380082f6683) ) /* bg data */ - ROM_LOAD( "exerion.04", 0x02000, 0x2000, CRC(d7abd0b9) SHA1(ca6413ecd324cf84e11b703a4eda2c1e6d28ff15) ) - ROM_LOAD( "exerion.01", 0x04000, 0x2000, CRC(5bb755cb) SHA1(ec92c518c116a78dbb23381468cefb3f930212cc) ) - ROM_LOAD( "exerion.02", 0x06000, 0x2000, CRC(a7ecbb70) SHA1(3c359d5bb21290a45d3eb18fea2b1f9439b931be) ) - - ROM_REGION( 0x0420, "proms", 0 ) - ROM_LOAD( "exerion.e1", 0x0000, 0x0020, CRC(2befcc20) SHA1(a24d3f691413378fde545a6ddcef7e5118e74019) ) /* palette */ - ROM_LOAD( "exerion.i8", 0x0020, 0x0100, CRC(31db0e08) SHA1(1041a778e86d3fe6f057cf40a0a08b30760f3887) ) /* fg char lookup table */ - ROM_LOAD( "exerion.h10", 0x0120, 0x0100, CRC(63b4c555) SHA1(30243041be4fa77ada71e8b29d721cad51640c29) ) /* sprite lookup table */ - ROM_LOAD( "exerion.i3", 0x0220, 0x0100, CRC(fe72ab79) SHA1(048a72e6db4768df687df927acaa70ef906b3dc0) ) /* bg char lookup table */ - ROM_LOAD( "exerion.k4", 0x0320, 0x0100, CRC(ffc2ba43) SHA1(03be1c41d6ac3fc11439caef04ef5ffa60d6aec4) ) /* bg char mixer */ -ROM_END - - -ROM_START( exerionb ) - ROM_REGION( 0x6000, "maincpu", 0 ) - ROM_LOAD( "eb5.bin", 0x0000, 0x4000, CRC(da175855) SHA1(11ea46fd1d504e16e5ffc604d74c1ce210d6be1c) ) - ROM_LOAD( "eb6.bin", 0x4000, 0x2000, CRC(0dbe2eff) SHA1(5b0e5e8453619beec46c4350d1b2ed571fe3dc24) ) - - ROM_REGION( 0x2000, "sub", 0 ) /* 64k for the second CPU */ - ROM_LOAD( "exerion.05", 0x0000, 0x2000, CRC(32f6bff5) SHA1(a4d0289f9d1d9eea7ca9a32a0616af48da74b401) ) - - ROM_REGION( 0x02000, "gfx1", 0 ) - ROM_LOAD( "exerion.06", 0x00000, 0x2000, CRC(435a85a4) SHA1(f6846bfee11df754405d4d796e7d8ac0321b6eb6) ) /* fg chars */ - - ROM_REGION( 0x04000, "gfx2", 0 ) - ROM_LOAD( "exerion.11", 0x00000, 0x2000, CRC(f0633a09) SHA1(8989bcb12abadde34777f7c189cfa6e2dfe92d62) ) /* sprites */ - ROM_LOAD( "exerion.10", 0x02000, 0x2000, CRC(80312de0) SHA1(4fa3bb9d5c62e41a54e8909f8d3b47637137e913) ) - - ROM_REGION( 0x08000, "gfx3", 0 ) - ROM_LOAD( "exerion.03", 0x00000, 0x2000, CRC(790595b8) SHA1(8016ac2394b25db38e962bcff4805380082f6683) ) /* bg data */ - ROM_LOAD( "exerion.04", 0x02000, 0x2000, CRC(d7abd0b9) SHA1(ca6413ecd324cf84e11b703a4eda2c1e6d28ff15) ) - ROM_LOAD( "exerion.01", 0x04000, 0x2000, CRC(5bb755cb) SHA1(ec92c518c116a78dbb23381468cefb3f930212cc) ) - ROM_LOAD( "exerion.02", 0x06000, 0x2000, CRC(a7ecbb70) SHA1(3c359d5bb21290a45d3eb18fea2b1f9439b931be) ) - - ROM_REGION( 0x0420, "proms", 0 ) - ROM_LOAD( "exerion.e1", 0x0000, 0x0020, CRC(2befcc20) SHA1(a24d3f691413378fde545a6ddcef7e5118e74019) ) /* palette */ - ROM_LOAD( "exerion.i8", 0x0020, 0x0100, CRC(31db0e08) SHA1(1041a778e86d3fe6f057cf40a0a08b30760f3887) ) /* fg char lookup table */ - ROM_LOAD( "exerion.h10", 0x0120, 0x0100, CRC(63b4c555) SHA1(30243041be4fa77ada71e8b29d721cad51640c29) ) /* sprite lookup table */ - ROM_LOAD( "exerion.i3", 0x0220, 0x0100, CRC(fe72ab79) SHA1(048a72e6db4768df687df927acaa70ef906b3dc0) ) /* bg char lookup table */ - ROM_LOAD( "exerion.k4", 0x0320, 0x0100, CRC(ffc2ba43) SHA1(03be1c41d6ac3fc11439caef04ef5ffa60d6aec4) ) /* bg char mixer */ -ROM_END - -ROM_START( irion ) - ROM_REGION( 0x6000, "maincpu", 0 ) - ROM_LOAD( "2.bin", 0x0000, 0x2000, CRC(bf55324e) SHA1(a310e953cc80d09111ba104f21461420ae3abcd5) ) - ROM_LOAD( "3.bin", 0x2000, 0x2000, CRC(0625bb49) SHA1(111edb1da2153c853d89e56a89ef813cee559730) ) - ROM_LOAD( "4.bin", 0x4000, 0x2000, CRC(918a9b1d) SHA1(e515f1b9c5ddda8115e68e8a499b252b09774bb6) ) - - ROM_REGION( 0x02000, "gfx1", 0 ) - ROM_LOAD( "1.bin", 0x0000, 0x2000, CRC(56cd5ebf) SHA1(58d84c2dc3b3bac7371da5b9a230fa581ead31dc) ) - - ROM_REGION( 0x04000, "gfx2", 0 ) - ROM_LOAD( "5.bin", 0x0000, 0x2000, CRC(80312de0) SHA1(4fa3bb9d5c62e41a54e8909f8d3b47637137e913) ) - ROM_LOAD( "6.bin", 0x2000, 0x2000, CRC(f0633a09) SHA1(8989bcb12abadde34777f7c189cfa6e2dfe92d62) ) - - ROM_REGION( 0x08000, "gfx3", ROMREGION_ERASE00 ) - - ROM_REGION( 0x0420, "proms", 0 ) // these are assumed to be on the board - the game won't run without them - ROM_LOAD( "exerion.e1", 0x0000, 0x0020, CRC(2befcc20) SHA1(a24d3f691413378fde545a6ddcef7e5118e74019) ) /* palette */ - ROM_LOAD( "exerion.i8", 0x0020, 0x0100, CRC(31db0e08) SHA1(1041a778e86d3fe6f057cf40a0a08b30760f3887) ) /* fg char lookup table */ - ROM_LOAD( "exerion.h10", 0x0120, 0x0100, CRC(63b4c555) SHA1(30243041be4fa77ada71e8b29d721cad51640c29) ) /* sprite lookup table */ - ROM_LOAD( "exerion.i3", 0x0220, 0x0100, CRC(fe72ab79) SHA1(048a72e6db4768df687df927acaa70ef906b3dc0) ) /* bg char lookup table */ - ROM_LOAD( "exerion.k4", 0x0320, 0x0100, CRC(ffc2ba43) SHA1(03be1c41d6ac3fc11439caef04ef5ffa60d6aec4) ) /* bg char mixer */ -ROM_END - - -/************************************* - * - * Driver initialization - * - *************************************/ - -void exerion_state::init_exerion() -{ - /* allocate some temporary space */ - std::vector<uint8_t> temp(0x10000); - - /* make a temporary copy of the character data */ - uint8_t *src = &temp[0]; - uint8_t *dst = memregion("gfx1")->base(); - uint32_t length = memregion("gfx1")->bytes(); - memcpy(src, dst, length); - - /* decode the characters */ - /* the bits in the ROM are ordered: n8-n7 n6 n5 n4-v2 v1 v0 n3-n2 n1 n0 h2 */ - /* we want them ordered like this: n8-n7 n6 n5 n4-n3 n2 n1 n0-v2 v1 v0 h2 */ - for (uint32_t oldaddr = 0; oldaddr < length; oldaddr++) - { - uint32_t newaddr = ((oldaddr ) & 0x1f00) | /* keep n8-n4 */ - ((oldaddr << 3) & 0x00f0) | /* move n3-n0 */ - ((oldaddr >> 4) & 0x000e) | /* move v2-v0 */ - ((oldaddr ) & 0x0001); /* keep h2 */ - dst[newaddr] = src[oldaddr]; - } - - /* make a temporary copy of the sprite data */ - src = &temp[0]; - dst = memregion("gfx2")->base(); - length = memregion("gfx2")->bytes(); - memcpy(src, dst, length); - - /* decode the sprites */ - /* the bits in the ROMs are ordered: n9 n8 n3 n7-n6 n5 n4 v3-v2 v1 v0 n2-n1 n0 h3 h2 */ - /* we want them ordered like this: n9 n8 n7 n6-n5 n4 n3 n2-n1 n0 v3 v2-v1 v0 h3 h2 */ - for (uint32_t oldaddr = 0; oldaddr < length; oldaddr++) - { - uint32_t newaddr = ((oldaddr << 1) & 0x3c00) | /* move n7-n4 */ - ((oldaddr >> 4) & 0x0200) | /* move n3 */ - ((oldaddr << 4) & 0x01c0) | /* move n2-n0 */ - ((oldaddr >> 3) & 0x003c) | /* move v3-v0 */ - ((oldaddr ) & 0xc003); /* keep n9-n8 h3-h2 */ - dst[newaddr] = src[oldaddr]; - } -} - - -void exerion_state::init_exerionb() -{ - uint8_t *ram = memregion("maincpu")->base(); - - /* the program ROMs have data lines D1 and D2 swapped. Decode them. */ - for (int addr = 0; addr < 0x6000; addr++) - ram[addr] = (ram[addr] & 0xf9) | ((ram[addr] & 2) << 1) | ((ram[addr] & 4) >> 1); - - /* also convert the gfx as in Exerion */ - init_exerion(); -} - -void exerion_state::init_irion() -{ - // convert the gfx and cpu roms like in ExerionB - init_exerionb(); - - // a further unscramble of gfx2 - uint8_t *ram = memregion("gfx2")->base(); - for (u16 i = 0; i < 0x4000; i += 0x400) - { - for (u16 j = 0; j < 0x200; j++) - { - u8 k = ram[i+j]; - ram[i+j] = ram[i+j+0x200]; - ram[i+j+0x200] = k; - } - } -} - - - -/************************************* - * - * Game drivers - * - *************************************/ - -GAME( 1983, exerion, 0, exerion, exerion, exerion_state, init_exerion, ROT90, "Jaleco", "Exerion", MACHINE_SUPPORTS_SAVE ) -GAME( 1983, exeriont, exerion, exerion, exerion, exerion_state, init_exerion, ROT90, "Jaleco (Taito America license)", "Exerion (Taito)", MACHINE_SUPPORTS_SAVE ) -GAME( 1983, exerionb, exerion, exerion, exerion, exerion_state, init_exerionb, ROT90, "bootleg", "Exerion (bootleg)", MACHINE_SUPPORTS_SAVE ) -GAME( 1983, irion, exerion, irion, exerion, exerion_state, init_irion, ROT90, "bootleg", "Irion", MACHINE_IMPERFECT_GRAPHICS | MACHINE_SUPPORTS_SAVE ) |