/*************************************************************************** Space Invaders memory map (preliminary) 0000-1fff ROM 2000-23ff RAM 2400-3fff Video RAM 4000-57ff ROM (some clones use more, others less) I/O ports: read: 01 IN0 02 IN1 03 bit shift register read write: 02 shift amount 03 ? 04 shift data 05 ? 06 ? Space Invaders -------------- Input: Port 1 bit 0 = CREDIT (0 if deposit) bit 1 = 2P start(1 if pressed) bit 2 = 1P start(1 if pressed) bit 3 = 0 if TILT bit 4 = shot(1 if pressed) bit 5 = left(1 if pressed) bit 6 = right(1 if pressed) bit 7 = Always 1 Port 2 bit 0 = 00 = 3 ships 10 = 5 ships bit 1 = 01 = 4 ships 11 = 6 ships bit 2 = Always 0 (1 if TILT) bit 3 = 0 = extra ship at 1500, 1 = extra ship at 1000 bit 4 = shot player 2 (1 if pressed) bit 5 = left player 2 (1 if pressed) bit 6 = right player 2 (1 if pressed) bit 7 = Coin info if 0, last screen Space Invaders Deluxe --------------------- This info was gleaned from examining the schematics of the SID manual which Mitchell M. Rohde keeps at: http://www.eecs.umich.edu/~bovine/space_invaders/index.html Input: Port 0 bit 0 = SW 8 unused bit 1 = Always 0 bit 2 = Always 1 bit 3 = Always 0 bit 4 = Always 1 bit 5 = Always 1 bit 6 = 1, Name Reset when set to zero bit 7 = Always 1 Port 1 bit 0 = CREDIT (0 if deposit) bit 1 = 2P start(1 if pressed) bit 2 = 1P start(1 if pressed) bit 3 = 0 if TILT bit 4 = shot(1 if pressed) bit 5 = left(1 if pressed) bit 6 = right(1 if pressed) bit 7 = Always 1 Port 2 bit 0 = Number of bases 0 - 3 , 1 - 4 (SW 4) bit 1 = 1 or 0 connected to SW 3 not used bit 2 = Always 0 (1 if TILT) bit 3 = Preset (SW 2) bit 4 = shot player 2 (1 if pressed) These are also used bit 5 = left player 2 (1 if pressed) to enter the name in the bit 6 = right player 2 (1 if pressed) high score field. bit 7 = Coin info if 0 (SW 1) last screen Invaders and Invaders Deluxe both write to I/O port 6 but I don't know why. ***************************************************************************/ #include "driver.h" #include "vidhrdw/generic.h" extern int invaders_shift_data_r(int offset); extern void invaders_shift_amount_w(int offset,int data); extern void invaders_shift_data_w(int offset,int data); extern int invaders_interrupt(void); extern unsigned char *invaders_videoram; extern void invaders_videoram_w(int offset,int data); extern void lrescue_videoram_w(int offset,int data); /* V.V */ extern void invrvnge_videoram_w(int offset,int data); /* V.V */ extern void invaders_vh_screenrefresh(struct osd_bitmap *bitmap); extern void invaders_sh_port3_w(int offset,int data); extern void invaders_sh_port5_w(int offset,int data); extern void invaders_sh_update(void); static struct MemoryReadAddress readmem[] = { { 0x2000, 0x3fff, MRA_RAM }, { 0x0000, 0x1fff, MRA_ROM }, { 0x4000, 0x57ff, MRA_ROM }, { -1 } /* end of table */ }; static struct MemoryWriteAddress writemem[] = { { 0x2000, 0x23ff, MWA_RAM }, { 0x2400, 0x3fff, invaders_videoram_w, &invaders_videoram }, { 0x0000, 0x1fff, MWA_ROM }, { 0x4000, 0x57ff, MWA_ROM }, { -1 } /* end of table */ }; static struct MemoryWriteAddress lrescue_writemem[] = /* V.V */ /* Whole function */ { { 0x2000, 0x23ff, MWA_RAM }, { 0x2400, 0x3fff, lrescue_videoram_w, &invaders_videoram }, { 0x0000, 0x1fff, MWA_ROM }, { 0x4000, 0x57ff, MWA_ROM }, { -1 } /* end of table */ }; static struct MemoryWriteAddress invrvnge_writemem[] = /* V.V */ /* Whole function */ { { 0x2000, 0x23ff, MWA_RAM }, { 0x2400, 0x3fff, invrvnge_videoram_w, &invaders_videoram }, { 0x0000, 0x1fff, MWA_ROM }, { 0x4000, 0x57ff, MWA_ROM }, { -1 } /* end of table */ }; static struct IOReadPort readport[] = { { 0x01, 0x01, input_port_0_r }, { 0x02, 0x02, input_port_1_r }, { 0x03, 0x03, invaders_shift_data_r }, { -1 } /* end of table */ }; static struct IOReadPort invdelux_readport[] = { { 0x00, 0x00, input_port_0_r }, { 0x01, 0x01, input_port_1_r }, { 0x02, 0x02, input_port_2_r }, { 0x03, 0x03, invaders_shift_data_r }, { -1 } /* end of table */ }; /* Catch the write to unmapped I/O port 6 */ void invaders_dummy_write(int offset,int data) { } static struct IOWritePort writeport[] = { { 0x02, 0x02, invaders_shift_amount_w }, { 0x03, 0x03, invaders_sh_port3_w }, { 0x04, 0x04, invaders_shift_data_w }, { 0x05, 0x05, invaders_sh_port5_w }, { 0x06, 0x06, invaders_dummy_write }, { -1 } /* end of table */ }; static struct IOWritePort invdelux_writeport[] = { { 0x02, 0x02, invaders_shift_amount_w }, { 0x03, 0x03, invaders_sh_port3_w }, { 0x04, 0x04, invaders_shift_data_w }, { 0x05, 0x05, invaders_sh_port5_w }, { 0x06, 0x06, invaders_dummy_write }, { -1 } /* end of table */ }; static struct InputPort input_ports[] = { { /* IN0 */ 0x81, { OSD_KEY_3, OSD_KEY_2, OSD_KEY_1, 0, OSD_KEY_CONTROL, OSD_KEY_LEFT, OSD_KEY_RIGHT, 0 }, { 0, 0, 0, 0, OSD_JOY_FIRE, OSD_JOY_LEFT, OSD_JOY_RIGHT, 0 } }, { /* IN1 */ 0x00, { 0, 0, OSD_KEY_T, 0, OSD_KEY_CONTROL, OSD_KEY_LEFT, OSD_KEY_RIGHT, 0 }, { 0, 0, 0, 0, OSD_JOY_FIRE, OSD_JOY_LEFT, OSD_JOY_RIGHT, 0 } }, { -1 } }; static struct InputPort invdelux_input_ports[] = { { /* IN0 */ 0xf4, { 0, 0, 0, 0, 0, 0, OSD_KEY_N, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0 } }, { /* IN1 */ 0x81, { OSD_KEY_3, OSD_KEY_2, OSD_KEY_1, 0, OSD_KEY_CONTROL, OSD_KEY_LEFT, OSD_KEY_RIGHT, 0 }, { 0, 0, 0, 0, OSD_JOY_FIRE, OSD_JOY_LEFT, OSD_JOY_RIGHT, 0 } }, { /* IN2 */ 0x00, { 0, 0, OSD_KEY_T, 0, OSD_KEY_CONTROL, OSD_KEY_LEFT, OSD_KEY_RIGHT, 0 }, { 0, 0, 0, 0, OSD_JOY_FIRE, OSD_JOY_LEFT, OSD_JOY_RIGHT, 0 } }, { -1 } }; static struct TrakPort trak_ports[] = { { -1 } }; static struct KEYSet keys[] = { { 0, 5, "PL1 MOVE LEFT" }, { 0, 6, "PL1 MOVE RIGHT" }, { 0, 4, "PL1 FIRE" }, { 1, 5, "PL1 MOVE LEFT" }, { 1, 6, "PL1 MOVE RIGHT" }, { 1, 4, "PL1 FIRE" }, { -1 } }; static struct KEYSet invaders_keys[] = { { 0, 5, "PL1 MOVE LEFT" }, { 0, 6, "PL1 MOVE RIGHT" }, { 0, 4, "PL1 FIRE" }, { 1, 5, "PL2 MOVE LEFT" }, { 1, 6, "PL2 MOVE RIGHT" }, { 1, 4, "PL2 FIRE" }, { -1 } }; /* Deluxe uses set two to input the name */ static struct KEYSet invdelux_keys[] = { { 1, 5, "PL1 MOVE LEFT" }, { 1, 6, "PL1 MOVE RIGHT" }, { 1, 4, "PL1 FIRE" }, { 2, 5, "PL2 MOVE LEFT" }, { 2, 6, "PL2 MOVE RIGHT" }, { 2, 4, "PL2 FIRE" }, { -1 } }; static struct DSW dsw[] = { { 1, 0x03, "LIVES", { "3", "4", "5", "6" } }, { 1, 0x08, "BONUS", { "1500", "1000" }, 1 }, { -1 } }; static struct DSW invaders_dsw[] = { { 1, 0x03, "BASES", { "3", "4", "5", "6" } }, { 1, 0x08, "BONUS", { "1500", "1000" }, 1 }, { 1, 0x80, "COIN INFO", { "ON", "OFF" }, 0 }, { -1 } }; static struct DSW invdelux_dsw[] = { { 2, 0x01, "BASES", { "3", "4" }, 0}, { 2, 0x08, "PRESET MODE", { "OFF", "ON" }, 0 }, { 2, 0x80, "COIN INFO", { "ON", "OFF" }, 0 }, { -1 } }; static unsigned char palette[] = /* V.V */ /* Smoothed pure colors, overlays are not so contrasted */ { 0x00,0x00,0x00, /* BLACK */ 0xff,0x20,0x20, /* RED */ 0x20,0xff,0x20, /* GREEN */ 0xff,0xff,0x20, /* YELLOW */ 0xff,0xff,0xff, /* WHITE */ 0x20,0xff,0xff, /* CYAN */ 0xff,0x20,0xff /* PURPLE */ }; enum { BLACK,RED,GREEN,YELLOW,WHITE,CYAN,PURPLE }; /* V.V */ static struct MachineDriver machine_driver = { /* basic machine hardware */ { { CPU_Z80, 2000000, /* 1 Mhz? */ 0, readmem,writemem,readport,writeport, invaders_interrupt,2 /* two interrupts per frame */ } }, 60, 0, /* video hardware */ 32*8, 32*8, { 2*8, 30*8-1, 0*8, 32*8-1 }, 0, /* no gfxdecodeinfo - bitmapped display */ sizeof(palette)/3, 0, 0, 0, generic_vh_start, generic_vh_stop, invaders_vh_screenrefresh, /* sound hardware */ 0, 0, 0, 0, invaders_sh_update }; static struct MachineDriver lrescue_machine_driver = /* V.V */ /* Whole function */ { /* basic machine hardware */ { { CPU_Z80, 2000000, /* 2 Mhz? */ 0, readmem,lrescue_writemem,readport,writeport, /* V.V */ invaders_interrupt,2 /* two interrupts per frame */ } }, 60, 0, /* video hardware */ 32*8, 32*8, { 2*8, 30*8-1, 0*8, 32*8-1 }, 0, /* no gfxdecodeinfo - bitmapped display */ sizeof(palette)/3, 0, 0, 0, generic_vh_start, generic_vh_stop, invaders_vh_screenrefresh, /* sound hardware */ 0, 0, 0, 0, invaders_sh_update }; static struct MachineDriver invrvnge_machine_driver = /* V.V */ /* Whole function */ { /* basic machine hardware */ { { CPU_Z80, 2000000, /* 2 Mhz? */ 0, readmem,invrvnge_writemem,readport,writeport, invaders_interrupt,2 /* two interrupts per frame */ } }, 60, 0, /* video hardware */ 32*8, 32*8, { 2*8, 30*8-1, 0*8, 32*8-1 }, 0, /* no gfxdecodeinfo - bitmapped display */ sizeof(palette)/3, 0, 0, 0, generic_vh_start, generic_vh_stop, invaders_vh_screenrefresh, /* sound hardware */ 0, 0, 0, 0, invaders_sh_update }; static struct MachineDriver invdelux_machine_driver = { /* basic machine hardware */ { { CPU_Z80, 2000000, /* 2 Mhz? */ 0, readmem,writemem,invdelux_readport, invdelux_writeport, invaders_interrupt,2 /* two interrupts per frame */ } }, 60, 0, /* video hardware */ 32*8, 32*8, { 2*8, 30*8-1, 0*8, 32*8-1 }, 0, /* no gfxdecodeinfo - bitmapped display */ sizeof(palette)/3, 0, 0, 0, generic_vh_start, generic_vh_stop, invaders_vh_screenrefresh, /* sound hardware */ 0, 0, 0, 0, invaders_sh_update }; /*************************************************************************** Game driver(s) ***************************************************************************/ ROM_START( invaders_rom ) ROM_REGION(0x10000) /* 64k for code */ ROM_LOAD( "invaders.h", 0x0000, 0x0800) ROM_LOAD( "invaders.g", 0x0800, 0x0800) ROM_LOAD( "invaders.f", 0x1000, 0x0800) ROM_LOAD( "invaders.e", 0x1800, 0x0800) ROM_END ROM_START( spaceatt_rom ) ROM_REGION(0x10000) /* 64k for code */ ROM_LOAD( "spaceatt.h", 0x0000, 0x0800) ROM_LOAD( "spaceatt.g", 0x0800, 0x0800) ROM_LOAD( "spaceatt.f", 0x1000, 0x0800) ROM_LOAD( "spaceatt.e", 0x1800, 0x0800) ROM_END ROM_START( invrvnge_rom ) ROM_REGION(0x10000) /* 64k for code */ ROM_LOAD( "invrvnge.h", 0x0000, 0x0800) ROM_LOAD( "invrvnge.g", 0x0800, 0x0800) ROM_LOAD( "invrvnge.f", 0x1000, 0x0800) ROM_LOAD( "invrvnge.e", 0x1800, 0x0800) ROM_END ROM_START( invdelux_rom ) ROM_REGION(0x10000) /* 64k for code */ ROM_LOAD( "invdelux.h", 0x0000, 0x0800) ROM_LOAD( "invdelux.g", 0x0800, 0x0800) ROM_LOAD( "invdelux.f", 0x1000, 0x0800) ROM_LOAD( "invdelux.e", 0x1800, 0x0800) ROM_LOAD( "invdelux.d", 0x4000, 0x0800) ROM_END ROM_START( galxwars_rom ) ROM_REGION(0x10000) /* 64k for code */ ROM_LOAD( "galxwars.0", 0x0000, 0x0400) ROM_LOAD( "galxwars.1", 0x0400, 0x0400) ROM_LOAD( "galxwars.2", 0x0800, 0x0400) ROM_LOAD( "galxwars.3", 0x0c00, 0x0400) ROM_LOAD( "galxwars.4", 0x4000, 0x0400) ROM_LOAD( "galxwars.5", 0x4400, 0x0400) ROM_END ROM_START( lrescue_rom ) ROM_REGION(0x10000) /* 64k for code */ ROM_LOAD( "lrescue.1", 0x0000, 0x0800) ROM_LOAD( "lrescue.2", 0x0800, 0x0800) ROM_LOAD( "lrescue.3", 0x1000, 0x0800) ROM_LOAD( "lrescue.4", 0x1800, 0x0800) ROM_LOAD( "lrescue.5", 0x4000, 0x0800) ROM_LOAD( "lrescue.6", 0x4800, 0x0800) ROM_END ROM_START( desterth_rom ) ROM_REGION(0x10000) /* 64k for code */ ROM_LOAD( "36_h.bin", 0x0000, 0x0800) ROM_LOAD( "35_g.bin", 0x0800, 0x0800) ROM_LOAD( "34_f.bin", 0x1000, 0x0800) ROM_LOAD( "33_e.bin", 0x1800, 0x0800) ROM_LOAD( "32_d.bin", 0x4000, 0x0800) ROM_LOAD( "31_c.bin", 0x4800, 0x0800) ROM_LOAD( "42_b.bin", 0x5000, 0x0800) ROM_END static const char *invaders_sample_names[] = { "0.SAM", "1.SAM", "2.SAM", "3.SAM", "4.SAM", "5.SAM", "6.SAM", "7.SAM", "8.SAM", 0 /* end of array */ }; static int invaders_hiload(const char *name) { /* check if the hi score table has already been initialized */ if (memcmp(&RAM[0x20f4],"\x00\x00",2) == 0) { FILE *f; if ((f = fopen(name,"rb")) != 0) { fread(&RAM[0x20f4],1,2,f); fclose(f); } return 1; } else return 0; /* we can't load the hi scores yet */ } static void invaders_hisave(const char *name) { FILE *f; if ((f = fopen(name,"wb")) != 0) { fwrite(&RAM[0x20f4],1,2,f); fclose(f); } } static int invdelux_hiload(const char *name) { /* check if the hi score table has already been initialized */ if (memcmp(&RAM[0x2340],"\x1b\x1b",2) == 0) { FILE *f; if ((f = fopen(name,"rb")) != 0) { /* Load the actual score */ fread(&RAM[0x20f4],1, 0x2,f); /* Load the name */ fread(&RAM[0x2340],1, 0xa,f); fclose(f); } return 1; } else return 0; /* we can't load the hi scores yet */ } static void invdelux_hisave(const char *name) { FILE *f; if ((f = fopen(name,"wb")) != 0) { /* Save the actual score */ fwrite(&RAM[0x20f4],1, 0x2,f); /* Save the name */ fwrite(&RAM[0x2340],1, 0xa,f); fclose(f); } } static int lrescue_hiload(const char *name) /* V.V */ /* Whole function */ { /* check if the hi score table has already been initialized */ if (memcmp(&RAM[0x20CF],"\x1b\x1b",2) == 0) { FILE *f; if ((f = fopen(name,"rb")) != 0) { /* Load the actual score */ fread(&RAM[0x20F4],1, 0x2,f); /* Load the name */ fread(&RAM[0x20CF],1, 0xa,f); /* Load the high score length */ fread(&RAM[0x20DB],1, 0x1,f); fclose(f); } return 1; } else return 0; /* we can't load the hi scores yet */ } static int desterth_hiload(const char *name) /* V.V */ /* Whole function */ { /* check if the hi score table has already been initialized */ if (memcmp(&RAM[0x20CF],"\x1b\x07",2) == 0) { FILE *f; if ((f = fopen(name,"rb")) != 0) { /* Load the actual score */ fread(&RAM[0x20F4],1, 0x2,f); /* Load the name */ fread(&RAM[0x20CF],1, 0xa,f); /* Load the high score length */ fread(&RAM[0x20DB],1, 0x1,f); fclose(f); } return 1; } else return 0; /* we can't load the hi scores yet */ } static void lrescue_hisave(const char *name) /* V.V */ /* Whole function */ { FILE *f; if ((f = fopen(name,"wb")) != 0) { /* Save the actual score */ fwrite(&RAM[0x20F4],1,0x02,f); /* Save the name */ fwrite(&RAM[0x20CF],1,0xa,f); /* Save the high score length */ fwrite(&RAM[0x20DB],1,0x1,f); fclose(f); } } struct GameDriver invaders_driver = { "Space Invaders", "invaders", "MICHAEL STRUTTS\nNICOLA SALMORIA\nTORMOD TJABERG\nMIRKO BUFFONI\nVALERIO VERRANDO", /* V.V */ &machine_driver, invaders_rom, 0, 0, invaders_sample_names, input_ports, trak_ports, invaders_dsw, invaders_keys, 0, palette, 0, 8*13, 8*16, invaders_hiload, invaders_hisave }; struct GameDriver earthinv_driver = { "Super Earth Invasion", "earthinv", "MICHAEL STRUTTS\nNICOLA SALMORIA\nTORMOD TJABERG\nMIRKO BUFFONI\nVALERIO VERRANDO", /* V.V */ &machine_driver, invaders_rom, 0, 0, invaders_sample_names, input_ports, trak_ports, dsw, keys, 0, palette, 0, 8*13, 8*16, 0, 0 }; struct GameDriver spaceatt_driver = { "Space Attack II", "spaceatt", "MICHAEL STRUTTS\nNICOLA SALMORIA\nTORMOD TJABERG\nMIRKO BUFFONI\nVALERIO VERRANDO", /* V.V */ &machine_driver, spaceatt_rom, 0, 0, invaders_sample_names, input_ports, trak_ports, dsw, keys, 0, palette, 0, 8*13, 8*16, 0, 0 }; struct GameDriver invrvnge_driver = { "Invaders Revenge", "invrvnge", "MICHAEL STRUTTS\nNICOLA SALMORIA\nTORMOD TJABERG\nMIRKO BUFFONI", &invrvnge_machine_driver, invrvnge_rom, 0, 0, invaders_sample_names, input_ports, trak_ports, dsw, keys, 0, palette, 0, 8*13, 8*16, 0, 0 }; struct GameDriver invdelux_driver = { "Invaders Deluxe", "invdelux", "MICHAEL STRUTTS\nNICOLA SALMORIA\nTORMOD TJABERG\nMIRKO BUFFONI\nVALERIO VERRANDO", /* V.V */ &invdelux_machine_driver, invdelux_rom, 0, 0, invaders_sample_names, invdelux_input_ports, trak_ports, invdelux_dsw, invdelux_keys, 0, palette, 0, 8*13, 8*16, invdelux_hiload, invdelux_hisave }; struct GameDriver galxwars_driver = { "Galaxy Wars", "galxwars", "MICHAEL STRUTTS\nNICOLA SALMORIA\nTORMOD TJABERG\nMIRKO BUFFONI\nVALERIO VERRANDO", /* V.V */ &machine_driver, galxwars_rom, 0, 0, invaders_sample_names, input_ports, trak_ports, dsw, keys, 0, palette, 0, 8*13, 8*16, 0, 0 }; struct GameDriver lrescue_driver = { "Lunar Rescue", "lrescue", "MICHAEL STRUTTS\nNICOLA SALMORIA\nTORMOD TJABERG\nMIRKO BUFFONI\nVALERIO VERRANDO", /* V.V */ &lrescue_machine_driver, lrescue_rom, 0, 0, invaders_sample_names, input_ports, trak_ports, dsw, keys, 0, palette, 0, 8*13, 8*16, lrescue_hiload, lrescue_hisave /* V.V */ }; struct GameDriver desterth_driver = { "Destination Earth", "desterth", "MICHAEL STRUTTS\nNICOLA SALMORIA\nTORMOD TJABERG\nMIRKO BUFFONI\nVALERIO VERRANDO", /* V.V */ &machine_driver, desterth_rom, 0, 0, invaders_sample_names, input_ports, trak_ports, dsw, keys, 0, palette, 0, 8*13, 8*16, desterth_hiload, lrescue_hisave };