/*************************************************************************** Lady Bug memory map (preliminary) 0000-5fff ROM 6000-6fff RAM d000-d3ff video RAM d400-d7ff color RAM (4 bits wide) memory mapped ports: read: 9000 IN0 9001 IN1 9002 DSW1 9003 DSW2 8000 interrupt enable? (toggle)? * * IN0 (all bits are inverted) * bit 7 : TILT if this is 0 coins are not accepted * bit 6 : START 2 * bit 5 : START 1 * bit 4 : FIRE player 1 * bit 3 : UP player 1 * bit 2 : RIGHT player 1 * bit 1 : DOWN player 1 * bit 0 : LEFT player 1 * * * IN1 (player input bits are inverted) * bit 7 : VBLANK * bit 6 : VBLANK inverted * bit 5 : * bit 4 : FIRE player 2 (TABLE only) * bit 3 : UP player 2 (TABLE only) * bit 2 : RIGHT player 2 (TABLE only) * bit 1 : DOWN player 2 (TABLE only) * bit 0 : LEFT player 2 (TABLE only) * * * DSW1 (all bits are inverted) * bit 7 : DIP SWITCH 8 0 = 5 lives 1 = 3 lives * bit 6 : DIP SWITCH 7 Free Play * bit 5 : DIP SWITCH 6 TABLE or STANDUP (0 = STANDUP) * bit 4 : DIP SWITCH 5 Pause * bit 3 : DIP SWITCH 4 RACK TEST * bit 2 : DIP SWITCH 3 0 = 3 letter initials 1 = 10 letter initials * bit 1 : DIP SWITCH 2\ Difficulty level * bit 0 : DIP SWITCH 1/ 11 = 1st (easy) 10 = 2nd 01 = 3rd 00 = 4th (hard) * * * DSW2 (all bits are inverted) * bit 7 : DIP SWITCH 8\ * bit 6 : DIP SWITCH 7| Left coin slot * bit 5 : DIP SWITCH 6| * bit 4 : DIP SWITCH 5/ * bit 3 : DIP SWITCH 4\ * bit 2 : DIP SWITCH 3| Right coin slot * bit 1 : DIP SWITCH 2| * bit 0 : DIP SWITCH 1/ * 1111 = 1 coin 1 play * 1110 = 1 coin 2 plays * 1101 = 1 coin 3 plays * 1100 = 1 coin 4 plays * 1011 = 1 coin 5 plays * 1010 = 2 coins 1 play * 1001 = 2 coins 3 plays * 1000 = 3 coins 1 play * 0111 = 3 coins 2 plays * 0110 = 4 coins 1 play * all others = 1 coin 1 play * write: 7000-73ff sprites a000 watchdog reset? b000 sound port 1 c000 sound port 2 interrupts: There is no vblank interrupt. The vblank status is read from IN1. Coin insertion in left slot generates an interrupt, in right slot a NMI. ***************************************************************************/ #include "driver.h" #include "vidhrdw/generic.h" extern int ladybug_IN0_r(int offset); extern int ladybug_IN1_r(int offset); extern int ladybug_interrupt(void); extern void ladybug_vh_convert_color_prom(unsigned char *palette, unsigned char *colortable,const unsigned char *color_prom); extern void ladybug_vh_screenrefresh(struct osd_bitmap *bitmap); extern void ladybug_sound1_w(int offset,int data); extern void ladybug_sound2_w(int offset,int data); extern int ladybug_sh_start(void); extern void ladybug_sh_stop(void); extern void ladybug_sh_update(void); static struct MemoryReadAddress readmem[] = { { 0x9001, 0x9001, ladybug_IN1_r }, /* IN1 */ { 0x6000, 0x6fff, MRA_RAM }, { 0x0000, 0x5fff, MRA_ROM }, { 0xd000, 0xd7ff, MRA_RAM }, /* video and color RAM */ { 0x9000, 0x9000, ladybug_IN0_r }, /* IN0 */ { 0x9002, 0x9002, input_port_2_r }, /* DSW1 */ { 0x9003, 0x9003, input_port_3_r }, /* DSW2 */ { 0x8000, 0x8fff, MRA_NOP }, { -1 } /* end of table */ }; static struct MemoryWriteAddress writemem[] = { { 0x6000, 0x6fff, MWA_RAM }, { 0xd000, 0xd3ff, videoram_w, &videoram, &videoram_size }, { 0xd400, 0xd7ff, colorram_w, &colorram }, { 0x7000, 0x73ff, MWA_RAM, &spriteram, &spriteram_size }, { 0xb000, 0xbfff, ladybug_sound1_w }, { 0xc000, 0xcfff, ladybug_sound2_w }, { 0xa000, 0xafff, MWA_NOP }, { 0x0000, 0x5fff, MWA_ROM }, { -1 } /* end of table */ }; static struct InputPort input_ports[] = { { /* IN0 */ 0xff, { OSD_KEY_LEFT, OSD_KEY_DOWN, OSD_KEY_RIGHT, OSD_KEY_UP, 0, OSD_KEY_1, OSD_KEY_2, 0 }, { OSD_JOY_LEFT, OSD_JOY_DOWN, OSD_JOY_RIGHT, OSD_JOY_UP, 0, 0, 0, 0 } }, { /* IN1 */ 0x3f, { 0, 0, 0, 0, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0 } }, { /* DSW1 */ 0xdf, { 0, 0, 0, OSD_KEY_F1, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0 } }, { /* DSW2 */ 0xff, { 0, 0, 0, 0, 0, 0, 0, 0 }, { 0, 0, 0, 0, 0, 0, 0, 0 } }, { -1 } /* end of table */ }; static struct TrakPort trak_ports[] = { { -1 } }; static struct KEYSet keys[] = { { 0, 3, "MOVE UP" }, { 0, 0, "MOVE LEFT" }, { 0, 2, "MOVE RIGHT" }, { 0, 1, "MOVE DOWN" }, { -1 } }; static struct DSW dsw[] = { { 2, 0x80, "LIVES", { "5", "3" }, 1 }, { 2, 0x03, "DIFFICULTY", { "HARDEST", "HARD", "MEDIUM", "EASY" }, 1 }, { 2, 0x04, "INITIALS", { "3 LETTERS", "10 LETTERS" } }, { -1 } }; static struct GfxLayout charlayout = { 8,8, /* 8*8 characters */ 512, /* 512 characters */ 2, /* 2 bits per pixel */ { 0, 512*8*8 }, /* the two bitplanes are separated */ { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 }, { 0, 1, 2, 3, 4, 5, 6, 7 }, 8*8 /* every char takes 8 consecutive bytes */ }; static struct GfxLayout spritelayout = { 16,16, /* 16*16 sprites */ 128, /* 128 sprites */ 2, /* 2 bits per pixel */ { 1, 0 }, /* the two bitplanes are packed in two consecutive bits */ { 23*16, 22*16, 21*16, 20*16, 19*16, 18*16, 17*16, 16*16, 7*16, 6*16, 5*16, 4*16, 3*16, 2*16, 1*16, 0*16 }, { 8*16+14, 8*16+12, 8*16+10, 8*16+8, 8*16+6, 8*16+4, 8*16+2, 8*16+0, 14, 12, 10, 8, 6, 4, 2, 0 }, 64*8 /* every sprite takes 64 consecutive bytes */ }; static struct GfxDecodeInfo gfxdecodeinfo[] = { { 1, 0x0000, &charlayout, 0, 8 }, { 1, 0x2000, &spritelayout, 4*8, 16 }, { -1 } /* end of array */ }; static unsigned char color_prom[] = { /* palette */ 0xF5,0x90,0x41,0x54,0x94,0x11,0x80,0x65,0x05,0xD4,0x01,0x00,0xB1,0xA0,0x00,0xF5, 0x04,0xB1,0x00,0x15,0x11,0x25,0x90,0xD0,0xA0,0x90,0x15,0x84,0xB5,0x04,0x04,0x04, /* sprite color lookup table */ 0x00,0x59,0x33,0xB8,0x00,0xD4,0xA3,0x8D,0x00,0x2C,0x63,0xDD,0x00,0x22,0x38,0x1D, 0x00,0x93,0x3A,0xDD,0x00,0xE2,0x38,0xDD,0x00,0x82,0x3A,0xD8,0x00,0x22,0x68,0x1D }; static struct MachineDriver machine_driver = { /* basic machine hardware */ { { CPU_Z80, 4000000, /* 4 Mhz */ 0, readmem,writemem,0,0, ladybug_interrupt,1 } }, 60, 0, /* video hardware */ 32*8, 32*8, { 4*8, 28*8-1, 1*8, 31*8-1 }, gfxdecodeinfo, 32,4*24, ladybug_vh_convert_color_prom, 0, generic_vh_start, generic_vh_stop, ladybug_vh_screenrefresh, /* sound hardware */ 0, 0, ladybug_sh_start, ladybug_sh_stop, ladybug_sh_update }; /*************************************************************************** Game driver(s) ***************************************************************************/ ROM_START( ladybug_rom ) ROM_REGION(0x10000) /* 64k for code */ ROM_LOAD( "lb1.cpu", 0x0000, 0x1000 ) ROM_LOAD( "lb2.cpu", 0x1000, 0x1000 ) ROM_LOAD( "lb3.cpu", 0x2000, 0x1000 ) ROM_LOAD( "lb4.cpu", 0x3000, 0x1000 ) ROM_LOAD( "lb5.cpu", 0x4000, 0x1000 ) ROM_LOAD( "lb6.cpu", 0x5000, 0x1000 ) ROM_REGION(0x4000) /* temporary space for graphics (disposed after conversion) */ ROM_LOAD( "lb9.vid", 0x0000, 0x1000 ) ROM_LOAD( "lb10.vid", 0x1000, 0x1000 ) ROM_LOAD( "lb8.cpu", 0x2000, 0x1000 ) ROM_LOAD( "lb7.cpu", 0x3000, 0x1000 ) ROM_END static int hiload(const char *name) { /* check if the hi score table has already been initialized */ if (memcmp(&RAM[0x6073],"\x01\x00\x00",3) == 0 && memcmp(&RAM[0x608b],"\x01\x00\x00",3) == 0) { FILE *f; if ((f = fopen(name,"rb")) != 0) { fread(&RAM[0x6073],1,3*9,f); fread(&RAM[0xd380],1,13*9,f); fclose(f); } return 1; } else return 0; /* we can't load the hi scores yet */ } static void hisave(const char *name) { FILE *f; if ((f = fopen(name,"wb")) != 0) { fwrite(&RAM[0x6073],1,3*9,f); fwrite(&RAM[0xd380],1,13*9,f); fclose(f); } } struct GameDriver ladybug_driver = { "Lady Bug", "ladybug", "NICOLA SALMORIA", &machine_driver, ladybug_rom, 0, 0, 0, input_ports, trak_ports, dsw, keys, color_prom, 0, 0, 8*13, 8*30, hiload, hisave };