Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-07-05 09:57:47 +03:00
Code Issues Actions 33 Packages Projects Releases Wiki Activity

Added Vblank bit and scanline register to Othello Derby [Angelo Salese]

Browse Source
This commit is contained in:
Angelo Salese 2012-03-19 20:10:00 +00:00
parent aa50f6750d
commit 5574a82b5f
1 changed files with 12 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
src/mame/drivers/othldrby.c
View File

@ -6,6 +6,9 @@ driver by Nicola Salmoria
Video IC is S951060-VGP
TODO:
- a PCB pic is needed in order to identify the RTC used by this.
Notes:
- Sprite/tile priorities are NOT orthogonal to sprite/sprite priorities:
sprites with a higher priority appear over sprites with a lower priority,
@ -20,15 +23,10 @@ Notes:
#include "includes/othldrby.h"
static READ16_HANDLER( pip )
/* Guess: reads when doing r/w to video device */
static READ16_HANDLER( othldrby_scanline_r )
{
othldrby_state *state = space->machine().driver_data<othldrby_state>();
return state->m_toggle ^= 1;
}
static READ16_HANDLER( pap )
{
return space->machine().rand();
return space->machine().primary_screen->vpos();
}
@ -89,11 +87,11 @@ static ADDRESS_MAP_START( othldrby_map, AS_PROGRAM, 16 )
AM_RANGE(0x300000, 0x300001) AM_WRITE(othldrby_videoram_addr_w)
AM_RANGE(0x300004, 0x300007) AM_READWRITE(othldrby_videoram_r, othldrby_videoram_w)
AM_RANGE(0x300008, 0x300009) AM_WRITE(othldrby_vreg_addr_w)
AM_RANGE(0x30000c, 0x30000d) AM_READ(pip) // vblank?
AM_RANGE(0x30000c, 0x30000d) AM_READ_PORT("VBLANK")
AM_RANGE(0x30000c, 0x30000f) AM_WRITE(othldrby_vreg_w)
AM_RANGE(0x400000, 0x400fff) AM_RAM_WRITE(paletteram16_xBBBBBGGGGGRRRRR_word_w) AM_BASE_GENERIC(paletteram)
AM_RANGE(0x600000, 0x600001) AM_DEVREADWRITE8_MODERN("oki", okim6295_device, read, write, 0x00ff)
AM_RANGE(0x700000, 0x700001) AM_READ(pap) // scanline???
AM_RANGE(0x700000, 0x700001) AM_READ(othldrby_scanline_r)
AM_RANGE(0x700004, 0x700005) AM_READ_PORT("DSW1")
AM_RANGE(0x700008, 0x700009) AM_READ_PORT("DSW2")
AM_RANGE(0x70000c, 0x70000d) AM_READ_PORT("P1")
@ -105,6 +103,9 @@ ADDRESS_MAP_END
static INPUT_PORTS_START( othldrby )
PORT_START("VBLANK")
PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_VBLANK )
PORT_START("DSW1")
PORT_DIPNAME( 0x01, 0x00, DEF_STR( Demo_Sounds ) )
PORT_DIPSETTING( 0x01, DEF_STR( Off ) )
@ -250,7 +251,7 @@ static MACHINE_CONFIG_START( othldrby, othldrby_state )
/* video hardware */
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_REFRESH_RATE(60)
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500))
MCFG_SCREEN_SIZE(64*8, 32*8)
MCFG_SCREEN_VISIBLE_AREA(12*8, (64-12)*8-1, 1*8, 31*8-1 )
MCFG_SCREEN_UPDATE_STATIC(othldrby)