Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-05-25 23:35:26 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

Added NVRAM emulation to Sengoku Mahjong.

Browse Source
This commit is contained in:
Angelo Salese 2008-12-06 15:47:27 +00:00
parent 0b23053a74
commit 3c34f45bf7
1 changed files with 13 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
src/mame/drivers/sengokmj.c
View File

@ -4,13 +4,13 @@ Sengoku Mahjong (c) 1991 Sigma
driver by Angelo Salese & Pierpaolo Prazzoli
Similar to the D-Con HW.
Uses the same Seibu custom chips of the D-Con HW.
TODO:
- Find what the remaining video C.R.T. registers does;
- Missing NVRAM emulation?
At startup a "Warning : Data in stock is wrong check ram" message appears because of that.
But...there isn't any clear eeprom write bits/cs/clock writes?
- Fix sprites bugs at a start of a play;
- Check NVRAM boudaries;
- How the "SW Service Mode" (press F2 during gameplay) really works (inputs etc)? Nothing mapped works with it...
Notes:
- Some strings written in the sound rom:
@ -19,6 +19,8 @@ Notes:
- To bypass the startup message, toggle "Reset" dip-switch or reset with F3.
- If the Work RAM is not hooked-up (areas $67xx),a sound sample is played.I can't understand what it says though,
appears to japanese words for "RAM failed".
- Playing with the debugger I've found this -> http://img444.imageshack.us/img444/2980/0000ti3.png (notice the "credit" at
the bottom). Maybe a non-BET version exists? Or there's a jumper setting?
CPU: uPD70116C-8 (V30)
Sound: Z80-A
@ -98,7 +100,8 @@ static WRITE16_HANDLER( sengokmj_out_w )
static ADDRESS_MAP_START( sengokmj_map, ADDRESS_SPACE_PROGRAM, 16 )
AM_RANGE(0x00000, 0x09fff) AM_RAM
AM_RANGE(0x00000, 0x07fff) AM_RAM
AM_RANGE(0x08000, 0x09fff) AM_RAM AM_BASE(&generic_nvram16) AM_SIZE(&generic_nvram_size)
AM_RANGE(0x0c000, 0x0c7ff) AM_RAM_WRITE(sengokmj_bgvram_w) AM_BASE(&sengokmj_bgvram)
AM_RANGE(0x0c800, 0x0cfff) AM_RAM_WRITE(sengokmj_fgvram_w) AM_BASE(&sengokmj_fgvram)
AM_RANGE(0x0d000, 0x0d7ff) AM_RAM_WRITE(sengokmj_mdvram_w) AM_BASE(&sengokmj_mdvram)
@ -111,7 +114,7 @@ ADDRESS_MAP_END
static ADDRESS_MAP_START( sengokmj_io_map, ADDRESS_SPACE_IO, 16 )
AM_RANGE(0x4000, 0x400f) AM_READWRITE(seibu_main_word_r, seibu_main_word_w)
AM_RANGE(0x8000, 0x800f) AM_WRITE(seibu_main_word_w)
/*These four appears to be video registers / C.R.T. related */
/*Areas from 8010-804f appears to be video registers / C.R.T. related,probably usual Seibu customness.*/
AM_RANGE(0x8010, 0x801b) AM_WRITENOP
AM_RANGE(0x801c, 0x801d) AM_WRITE(sengokmj_layer_enable_w)
AM_RANGE(0x801e, 0x801f) AM_WRITENOP
@ -223,7 +226,7 @@ static INPUT_PORTS_START( sengokmj )
PORT_DIPNAME( 0x0001, 0x0001, "Door" )
PORT_DIPSETTING( 0x0001, DEF_STR( Off ) )
PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
PORT_SERVICE_NO_TOGGLE( 0x0002, IP_ACTIVE_LOW )
PORT_SERVICE( 0x0002, IP_ACTIVE_LOW )
PORT_DIPNAME( 0x0004, 0x0004, "Opt. 1st" )
PORT_DIPSETTING( 0x0004, DEF_STR( Off ) )
PORT_DIPSETTING( 0x0000, DEF_STR( On ) )
@ -295,6 +298,7 @@ static MACHINE_DRIVER_START( sengokmj )
SEIBU_SOUND_SYSTEM_CPU(14318180/4)
MDRV_MACHINE_RESET(seibu_sound)
MDRV_NVRAM_HANDLER(generic_0fill)
/* video hardware */
MDRV_SCREEN_ADD("main", RASTER)
@ -351,4 +355,5 @@ ROM_START( sengokmj )
ROM_LOAD( "rs006.89", 0x000, 0x200, CRC(96f7646e) SHA1(400a831b83d6ac4d2a46ef95b97b1ee237099e44) ) /* Priority */
ROM_END
GAME( 1991, sengokmj, 0, sengokmj, sengokmj, 0, ROT0, "Sigma", "Sengoku Mahjong (Japan)", GAME_IMPERFECT_GRAPHICS )
GAME( 1991, sengokmj, 0, sengokmj, sengokmj, 0, ROT0, "Sigma", "Sengoku Mahjong [BET] (Japan)", GAME_IMPERFECT_GRAPHICS )
/*Non-Bet Version?*/