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https://github.com/holub/mame
synced 2025-04-22 00:11:58 +03:00
Added NVRAM to Gekisou. Fixed inputs and promoted to working.
This commit is contained in:
Nicola Salmoria
parent
6183e18a21
commit
6e397b034c
@ -98,21 +98,9 @@ Notes:
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- similarly, splndrbt hardware only appears to be capable of displaying 24 sprites.
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This time, they are consecutive in RAM.
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TODO:
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----
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- on startup, the CPU continuously writes 5555 to 100000 in a tight loop and expects
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it to change to exit the loop. The value should obviously be modified by the
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sprite hardware but it's difficult to guess what should happen. A kludge read
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handler is used as a work around.
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- the second interrupt source for main CPU is unknown.
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- gekisou inputs. Looks like there should be an EEPROM. Note ROM patches in
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DRIVER_INIT to make it boot past what I think is the EEPROM read.
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Settings are changed by pressing the service button and then using joystick
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to change options.
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- gekisou doesn't have dip switches, but battery backed RAM. To enter the Settings
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menu, press F1. The settings menu is VERY spartan, with no indication of what the
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settings do.
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Settings: 1 2 3 4 5 6 7 8
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COIN 1 1 Coin / 1 Play ON ON
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@ -128,12 +116,31 @@ TODO:
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CABINET Cocktail ON
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Upright OFF
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TODO:
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----
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- on startup, the CPU continuously writes 5555 to 100000 in a tight loop and expects
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it to change to exit the loop. The value should obviously be modified by the
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sprite hardware but it's difficult to guess what should happen. A kludge read
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handler is used as a work around.
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- the second interrupt source for main CPU is unknown.
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- gekisou has some unknown device mapped to 580000/5a0000. The bit read from bit 7
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of 180000 must match the last write, otherwise the game will report a BOARD ERROR
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during boot.
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- gekisou: there's a white line crossing the explosion sprite. This doesn't look
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like a bad ROM since the line is crossing several, not concecutive, explosion
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sprites, and no other sprites.
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- gekisou: wrong sprite when hitting helicopter with missile?
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- gekisou: there is a small glitch during the text intro at the beginning of player
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2 game in cocktail mode: a white line spills out from the text box as characters
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in the last line are written. This might well be a bug in the original.
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- splndrbt, hvoltage: the interpretation of the scaling PROMs might be wrong.
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The sprite x scaling is not used at all because I couldn't figure it out.
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Sprite y scaling is slightly wrong and leaves gaps in tall objects.
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@ -151,6 +158,10 @@ TODO:
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- implement low-pass filters on the DAC output
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- the purpose of the sound PROM is unclear. From the schematics, it seems it
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should influence the MSM5232 clock. However, even removing it from the board
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doesn't seem to affect the sound.
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* Special Thanks to:
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Jarek Burczynski for a superb MSM5232 emulation
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@ -444,9 +455,12 @@ static WRITE8_HANDLER(equites_c0f8_w)
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case 4: // c0fc: increment PROM address (written by NMI handler)
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equites_sound_prom_address = (equites_sound_prom_address + 1) & 0x1f;
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// FIXME: at this point, the 5-bit value
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// memory_region(REGION_SOUND1)[equites_sound_prom_address] & 0x1f
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// should be used for something...
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// at this point, the 5-bit value
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// memory_region(REGION_SOUND1)[equites_sound_prom_address] & 0x1f
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// goes to an op-amp and to the base of a transistor. The transistor is part
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// of a resonator that is used to generate the M5232 clock. The PROM doesn't
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// actually seem to be important, since even removing it the M5232 clock
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// continues to come out normally.
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break;
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case 5: // c0fd: n.c.
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@ -633,6 +647,25 @@ static READ16_HANDLER(hvoltage_debug_r)
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}
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#endif
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// Gekisou special handling
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static int unknown_bit;
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static CUSTOM_INPUT( gekisou_unknown_status )
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{
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return unknown_bit;
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}
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static WRITE16_HANDLER( gekisou_unknown_0_w )
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{
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unknown_bit = 0;
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}
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static WRITE16_HANDLER( gekisou_unknown_1_w )
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{
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unknown_bit = 1;
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}
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/******************************************************************************/
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// Main CPU Memory Map
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@ -670,7 +703,7 @@ static WRITE16_HANDLER( mcu_halt_clear_w )
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static ADDRESS_MAP_START( equites_map, ADDRESS_SPACE_PROGRAM, 16 )
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AM_RANGE(0x000000, 0x00ffff) AM_ROM // ROM area is written several times (dev system?)
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AM_RANGE(0x040000, 0x040fff) AM_RAM AM_BASE(&equites_workram)
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AM_RANGE(0x040000, 0x040fff) AM_RAM AM_BASE(&equites_workram) AM_BASE(&generic_nvram16) AM_SIZE(&generic_nvram_size) // nvram is for gekisou only
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AM_RANGE(0x080000, 0x080fff) AM_READWRITE(equites_fg_videoram_r, equites_fg_videoram_w) // 8-bit
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AM_RANGE(0x0c0000, 0x0c01ff) AM_RAM AM_WRITE(equites_bg_videoram_w) AM_BASE(&equites_bg_videoram)
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AM_RANGE(0x0c0200, 0x0c0fff) AM_RAM
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@ -686,6 +719,8 @@ static ADDRESS_MAP_START( equites_map, ADDRESS_SPACE_PROGRAM, 16 )
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AM_RANGE(0x1ac000, 0x1ac001) AM_WRITENOP // 8404 control port4
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AM_RANGE(0x1c0000, 0x1c0001) AM_READWRITE(input_port_0_word_r, equites_scrollreg_w) // scroll register[XXYY]
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AM_RANGE(0x380000, 0x380001) AM_WRITE(equites_bgcolor_w) // bg color register[CC--]
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// 580000 unknown (protection?) (gekisou only, installed by DRIVER_INIT)
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// 5a0000 unknown (protection?) (gekisou only, installed by DRIVER_INIT)
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AM_RANGE(0x780000, 0x780001) AM_WRITE(watchdog_reset16_w)
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ADDRESS_MAP_END
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@ -809,24 +844,12 @@ static INPUT_PORTS_START( gekisou )
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#if EASY_TEST_MODE
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PORT_SERVICE( 0x0300, IP_ACTIVE_HIGH )
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#endif
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PORT_DIPNAME( 0x0400, 0x0400, DEF_STR ( Unknown ) )
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PORT_DIPSETTING( 0x0000, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x0400, DEF_STR( On ) )
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PORT_DIPNAME( 0x0800, 0x0800, DEF_STR ( Unknown ) )
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PORT_DIPSETTING( 0x0000, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x0800, DEF_STR( On ) )
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PORT_DIPNAME( 0x1000, 0x1000, DEF_STR ( Unknown ) )
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PORT_DIPSETTING( 0x0000, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x1000, DEF_STR( On ) )
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PORT_DIPNAME( 0x2000, 0x2000, DEF_STR ( Unknown ) )
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PORT_DIPSETTING( 0x0000, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x2000, DEF_STR( On ) )
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PORT_DIPNAME( 0x4000, 0x4000, DEF_STR ( Unknown ) )
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PORT_DIPSETTING( 0x0000, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x4000, DEF_STR( On ) )
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PORT_DIPNAME( 0x8000, 0x8000, DEF_STR ( Unknown ) )
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PORT_DIPSETTING( 0x0000, DEF_STR( Off ) )
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PORT_DIPSETTING( 0x8000, DEF_STR( On ) )
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PORT_BIT( 0x0400, IP_ACTIVE_HIGH, IPT_SERVICE) PORT_NAME("Settings") PORT_CODE(KEYCODE_F1)
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PORT_BIT( 0x0800, IP_ACTIVE_HIGH, IPT_UNKNOWN )
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PORT_BIT( 0x1000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
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PORT_BIT( 0x2000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
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PORT_BIT( 0x4000, IP_ACTIVE_HIGH, IPT_UNKNOWN )
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PORT_BIT( 0x8000, IP_ACTIVE_HIGH, IPT_SPECIAL ) PORT_CUSTOM(gekisou_unknown_status, 0)
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/* this is actually a variable resistor */
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PORT_START_TAG(FRQ_ADJUSTER_TAG)
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@ -1192,6 +1215,16 @@ static MACHINE_DRIVER_START( equites )
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MDRV_MACHINE_RESET(equites)
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MACHINE_DRIVER_END
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static MACHINE_DRIVER_START( gekisou )
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MDRV_IMPORT_FROM(equites)
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// gekisou has battery-backed RAM to store settings
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MDRV_NVRAM_HANDLER(generic_0fill)
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MACHINE_DRIVER_END
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static MACHINE_DRIVER_START( splndrbt )
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/* basic machine hardware */
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@ -1785,21 +1818,12 @@ static DRIVER_INIT( kouyakyu )
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static DRIVER_INIT( gekisou )
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{
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UINT16 *rom = (UINT16 *)memory_region(REGION_CPU1);
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unpack_region(REGION_GFX2);
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unpack_region(REGION_GFX3);
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// FIXME - patch input check
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rom[0x8b0>>1] = 0x4e71;
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rom[0x8d4>>1] = 0x4e71;
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rom[0xb3a>>1] = 0x4e71;
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rom[0xb3c>>1] = 0x4e71;
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// patch ROM checksum test too
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rom[0x4b4>>1] = 0x4e71;
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rom[0x4b6>>1] = 0x4e71;
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rom[0x4bc>>1] = 0x4e71;
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rom[0x4be>>1] = 0x4e71;
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// install special handlers for unknown device (protection?)
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memory_install_write16_handler(0, ADDRESS_SPACE_PROGRAM, 0x580000, 0x580001, 0, 0, gekisou_unknown_0_w);
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memory_install_write16_handler(0, ADDRESS_SPACE_PROGRAM, 0x5a0000, 0x5a0001, 0, 0, gekisou_unknown_1_w);
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}
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static DRIVER_INIT( splndrbt )
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@ -1823,7 +1847,7 @@ static DRIVER_INIT( hvoltage )
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// Equites Hardware
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GAME( 1984, equites, 0, equites, equites, equites, ROT90, "Alpha Denshi Co.", "Equites", GAME_IMPERFECT_SOUND )
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GAME( 1984, equitess, equites, equites, equites, equites, ROT90, "Alpha Denshi Co. (Sega license)", "Equites (Sega)", GAME_IMPERFECT_SOUND )
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GAME( 1985, gekisou, 0, equites, gekisou, gekisou, ROT90, "Eastern Corp.", "Gekisou (Japan)", GAME_NO_COCKTAIL | GAME_NOT_WORKING | GAME_IMPERFECT_SOUND | GAME_IMPERFECT_GRAPHICS )
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GAME( 1985, gekisou, 0, gekisou, gekisou, gekisou, ROT90, "Eastern Corp.", "Gekisou (Japan)", GAME_IMPERFECT_SOUND | GAME_IMPERFECT_GRAPHICS )
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GAME( 1984, bullfgtr, 0, equites, bullfgtr, bullfgtr, ROT90, "Alpha Denshi Co.", "Bull Fighter", GAME_IMPERFECT_SOUND )
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GAME( 1984, bullfgts, bullfgtr, equites, bullfgtr, bullfgtr, ROT90, "Alpha Denshi Co. (Sega license)", "Bull Fighter (Sega)", GAME_IMPERFECT_SOUND )
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GAME( 1985, kouyakyu, 0, equites, kouyakyu, kouyakyu, ROT0, "Alpha Denshi Co.", "The Koukouyakyuh", GAME_IMPERFECT_SOUND )
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