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Updated some notes and cosmetic clean-up.

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This commit is contained in:
RobertoFresca 2015-05-09 08:13:38 -03:00
parent 7e84989659
commit 6b0e657b6b
1 changed files with 55 additions and 84 deletions
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49
src/mame/drivers/jokrwild.c
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@ -2,20 +2,12 @@
// copyright-holders:Roberto Fresca
/******************************************************************************
JOKER'S WILD - SIGMA
--------------------
JOKER'S WILD - SIGMA (1988)
Preliminary driver by Roberto Fresca.
Games running on this hardware:
* Joker's Wild (encrypted). 1988, Sigma.
*******************************************************************************
Hardware Notes (guessed):
------------------------
@ -23,19 +15,17 @@
Video: 1x M6845 CRTC or similar.
I/O: 2x PIAs ?? (there is code to initialize PIAs at $8033)
*******************************************************************************
*** Game Notes ***
RND old notes:
Game is trying to boot, and after approx. 90 seconds an error message appear
on screen: "Random number generator is defective", then stuck here.
See code at $9859
PIAs are commented out just to see the R/W on error log.
Currently the game spit an error about bad RAM, and after approx 90 seconds
the playfield is drawn and then hang.
*******************************************************************************
@ -57,20 +47,14 @@
----------------------------------------------------------------------------------------------------------------------
value: 0x20 0x18 0x1B 0x64 0x20 0x07 0x1A 0x1D 0x00 0x07 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00.
*******************************************************************************
DRIVER UPDATES:
[2008-10-30]
- Fixed graphics to 2 bits per pixel.
[2008-10-25]
- Initial release.
- ROMs load OK.
- Proper ROMs decryption.
@ -78,7 +62,6 @@
- Video RAM OK.
- Added technical notes.
TODO:
- RND number generator.
@ -86,10 +69,8 @@
- Sound.
- A lot of work.
*******************************************************************************/
#define MASTER_CLOCK XTAL_8MHz /* guess */
#include "emu.h"
@ -131,21 +112,18 @@ public:
* Video Hardware *
*************************/
WRITE8_MEMBER(jokrwild_state::jokrwild_videoram_w)
{
m_videoram[offset] = data;
m_bg_tilemap->mark_tile_dirty(offset);
}
WRITE8_MEMBER(jokrwild_state::jokrwild_colorram_w)
{
m_colorram[offset] = data;
m_bg_tilemap->mark_tile_dirty(offset);
}
TILE_GET_INFO_MEMBER(jokrwild_state::get_bg_tile_info)
{
/* - bits -
@ -160,31 +138,23 @@ TILE_GET_INFO_MEMBER(jokrwild_state::get_bg_tile_info)
SET_TILE_INFO_MEMBER(0, code , color , 0);
}
void jokrwild_state::video_start()
{
m_bg_tilemap = &machine().tilemap().create(m_gfxdecode, tilemap_get_info_delegate(FUNC(jokrwild_state::get_bg_tile_info),this), TILEMAP_SCAN_ROWS, 8, 8, 24, 26);
}
UINT32 jokrwild_state::screen_update_jokrwild(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
m_bg_tilemap->draw(screen, bitmap, cliprect, 0, 0);
return 0;
}
PALETTE_INIT_MEMBER(jokrwild_state, jokrwild)
{
//missing proms
}
/*************************
* Machine Init *
*************************/
/*****************************
* Read/Write Handlers *
*****************************/
@ -200,6 +170,7 @@ READ8_MEMBER(jokrwild_state::rng_r)
return machine().rand() & 0xff;
}
/*************************
* Memory Map Information *
*************************/
@ -220,7 +191,6 @@ static ADDRESS_MAP_START( jokrwild_map, AS_PROGRAM, 8, jokrwild_state )
AM_RANGE(0x8000, 0xffff) AM_ROM
ADDRESS_MAP_END
/* I/O byte R/W
@ -238,6 +208,7 @@ ADDRESS_MAP_END
*/
/*************************
* Input Ports *
*************************/
@ -425,6 +396,7 @@ WRITE8_MEMBER(jokrwild_state::testb_w)
// printf("%02x B\n",data);
}
/*************************
* Machine Drivers *
*************************/
@ -452,8 +424,8 @@ static MACHINE_CONFIG_START( jokrwild, jokrwild_state )
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
MCFG_SCREEN_SIZE((32+1)*8, (32+1)*8) /* From MC6845, registers 00 & 04. (value-1) */
MCFG_SCREEN_VISIBLE_AREA(0*8, 24*8-1, 0*8, 26*8-1) /* From MC6845, registers 01 & 06 */
MCFG_SCREEN_SIZE((32+1)*8, (32+1)*8) // From MC6845, registers 00 & 04. (value-1)
MCFG_SCREEN_VISIBLE_AREA(0*8, 24*8-1, 0*8, 26*8-1) // From MC6845, registers 01 & 06.
MCFG_SCREEN_UPDATE_DRIVER(jokrwild_state, screen_update_jokrwild)
MCFG_SCREEN_PALETTE("palette")
@ -515,7 +487,6 @@ DRIVER_INIT_MEMBER(jokrwild_state,jokrwild)
0x89 XOR 0xCC XOR 0x3A = 0x7F
*****************************************************************************/
{
int i, offs;
@ -533,5 +504,5 @@ DRIVER_INIT_MEMBER(jokrwild_state,jokrwild)
* Game Drivers *
*************************/
/* YEAR NAME PARENT MACHINE INPUT INIT ROT COMPANY FULLNAME FLAGS */
/* YEAR NAME PARENT MACHINE INPUT STATE INIT ROT COMPANY FULLNAME FLAGS */
GAME( 1988, jokrwild, 0, jokrwild, jokrwild, jokrwild_state, jokrwild, ROT0, "Sigma", "Joker's Wild (encrypted)", GAME_NO_SOUND | GAME_NOT_WORKING )