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Added save state support to atetris.c. (From Svante Gerhard)

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Also fixed up memory maps and clocks according to schematics.
This commit is contained in:
Aaron Giles 2008-01-17 05:50:22 +00:00
parent 41b5d4ffd5
commit 78aa305397
1 changed files with 51 additions and 28 deletions
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79
src/mame/drivers/atetris.c
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@ -53,17 +53,19 @@
#include "atetris.h"
#include "sound/sn76496.h"
#include "sound/pokey.h"
#include "state.h"
#define ATARI_CLOCK_14MHz 14318180
#define MASTER_CLOCK XTAL_14_31818MHz
#define BOOTLEG_CLOCK XTAL_14_7456MHz
/* Local variables */
static UINT8 *slapstic_source;
static UINT8 *slapstic_base;
static UINT8 current_bank;
static UINT8 nvram_write_enable;
static emu_timer *interrupt_timer;
@ -84,7 +86,7 @@ static TIMER_CALLBACK( interrupt_gen )
scanline += 32;
if (scanline >= 256)
scanline -= 256;
timer_set(video_screen_get_time_until_pos(0, scanline, 0), NULL, scanline, interrupt_gen);
timer_adjust(interrupt_timer, video_screen_get_time_until_pos(0, scanline, 0), scanline, attotime_zero);
}
@ -101,15 +103,33 @@ static WRITE8_HANDLER( irq_ack_w )
*
*************************************/
static void reset_bank(void)
{
memcpy(slapstic_base, &slapstic_source[current_bank * 0x4000], 0x4000);
}
static MACHINE_START( atetris )
{
/* Allocate interrupt timer */
interrupt_timer = timer_alloc(interrupt_gen, NULL);
/* Set up save state */
state_save_register_global(current_bank);
state_save_register_global(nvram_write_enable);
state_save_register_func_postload(reset_bank);
}
static MACHINE_RESET( atetris )
{
/* reset the slapstic */
slapstic_reset();
current_bank = slapstic_bank() & 1;
memcpy(slapstic_base, &slapstic_source[current_bank * 0x4000], 0x4000);
reset_bank();
/* start interrupts going (32V clocked by 16V) */
timer_set(video_screen_get_time_until_pos(0, 48, 0), NULL, 48, interrupt_gen);
timer_adjust(interrupt_timer, video_screen_get_time_until_pos(0, 48, 0), 48, attotime_zero);
}
@ -177,17 +197,18 @@ static WRITE8_HANDLER( nvram_enable_w )
*
*************************************/
/* full address map derived from schematics */
static ADDRESS_MAP_START( main_map, ADDRESS_SPACE_PROGRAM, 8 )
AM_RANGE(0x0000, 0x0fff) AM_RAM
AM_RANGE(0x1000, 0x1fff) AM_READWRITE(MRA8_RAM, atetris_videoram_w) AM_BASE(&videoram) AM_SIZE(&videoram_size)
AM_RANGE(0x2000, 0x20ff) AM_READWRITE(MRA8_RAM, paletteram_RRRGGGBB_w) AM_BASE(&paletteram)
AM_RANGE(0x2400, 0x25ff) AM_READWRITE(MRA8_RAM, nvram_w) AM_BASE(&generic_nvram) AM_SIZE(&generic_nvram_size)
AM_RANGE(0x2800, 0x280f) AM_READWRITE(pokey1_r, pokey1_w)
AM_RANGE(0x2810, 0x281f) AM_READWRITE(pokey2_r, pokey2_w)
AM_RANGE(0x3000, 0x3000) AM_WRITE(watchdog_reset_w)
AM_RANGE(0x3400, 0x3400) AM_WRITE(nvram_enable_w)
AM_RANGE(0x3800, 0x3800) AM_WRITE(irq_ack_w)
AM_RANGE(0x3c00, 0x3c00) AM_WRITE(coincount_w)
AM_RANGE(0x2000, 0x20ff) AM_MIRROR(0x0300) AM_READWRITE(MRA8_RAM, paletteram_RRRGGGBB_w) AM_BASE(&paletteram)
AM_RANGE(0x2400, 0x25ff) AM_MIRROR(0x0200) AM_READWRITE(MRA8_RAM, nvram_w) AM_BASE(&generic_nvram) AM_SIZE(&generic_nvram_size)
AM_RANGE(0x2800, 0x280f) AM_MIRROR(0x03e0) AM_READWRITE(pokey1_r, pokey1_w)
AM_RANGE(0x2810, 0x281f) AM_MIRROR(0x03e0) AM_READWRITE(pokey2_r, pokey2_w)
AM_RANGE(0x3000, 0x3000) AM_MIRROR(0x03ff) AM_WRITE(watchdog_reset_w)
AM_RANGE(0x3400, 0x3400) AM_MIRROR(0x03ff) AM_WRITE(nvram_enable_w)
AM_RANGE(0x3800, 0x3800) AM_MIRROR(0x03ff) AM_WRITE(irq_ack_w)
AM_RANGE(0x3c00, 0x3c00) AM_MIRROR(0x03ff) AM_WRITE(coincount_w)
AM_RANGE(0x4000, 0x5fff) AM_ROM
AM_RANGE(0x6000, 0x7fff) AM_READ(atetris_slapstic_r)
AM_RANGE(0x8000, 0xffff) AM_ROM
@ -330,9 +351,10 @@ static const struct POKEYinterface pokey_interface_2 =
static MACHINE_DRIVER_START( atetris )
/* basic machine hardware */
MDRV_CPU_ADD(M6502,ATARI_CLOCK_14MHz/8)
MDRV_CPU_ADD(M6502,MASTER_CLOCK/8)
MDRV_CPU_PROGRAM_MAP(main_map,0)
MDRV_MACHINE_START(atetris)
MDRV_MACHINE_RESET(atetris)
MDRV_NVRAM_HANDLER(generic_1fill)
@ -345,7 +367,7 @@ static MACHINE_DRIVER_START( atetris )
MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
/* note: these parameters are from published specs, not derived */
/* the board uses an SOS-2 chip to generate video signals */
MDRV_SCREEN_RAW_PARAMS(ATARI_CLOCK_14MHz/2, 456, 0, 336, 262, 0, 240)
MDRV_SCREEN_RAW_PARAMS(MASTER_CLOCK/2, 456, 0, 336, 262, 0, 240)
MDRV_VIDEO_START(atetris)
MDRV_VIDEO_UPDATE(atetris)
@ -353,11 +375,11 @@ static MACHINE_DRIVER_START( atetris )
/* sound hardware */
MDRV_SPEAKER_STANDARD_MONO("mono")
MDRV_SOUND_ADD(POKEY, ATARI_CLOCK_14MHz/8)
MDRV_SOUND_ADD(POKEY, MASTER_CLOCK/8)
MDRV_SOUND_CONFIG(pokey_interface_1)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MDRV_SOUND_ADD(POKEY, ATARI_CLOCK_14MHz/8)
MDRV_SOUND_ADD(POKEY, MASTER_CLOCK/8)
MDRV_SOUND_CONFIG(pokey_interface_2)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MACHINE_DRIVER_END
@ -366,11 +388,12 @@ MACHINE_DRIVER_END
static MACHINE_DRIVER_START( atetrsb2 )
/* basic machine hardware */
MDRV_CPU_ADD(M6502,14745600/8)
MDRV_CPU_ADD(M6502,BOOTLEG_CLOCK/8)
MDRV_CPU_PROGRAM_MAP(atetrsb2_map,0)
MDRV_SCREEN_REFRESH_RATE(60)
MDRV_MACHINE_START(atetris)
MDRV_MACHINE_RESET(atetris)
MDRV_NVRAM_HANDLER(generic_1fill)
@ -383,7 +406,7 @@ static MACHINE_DRIVER_START( atetrsb2 )
MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
/* note: these parameters are from published specs, not derived */
/* the board uses an SOS-2 chip to generate video signals */
MDRV_SCREEN_RAW_PARAMS(ATARI_CLOCK_14MHz/2, 456, 0, 336, 262, 0, 240)
MDRV_SCREEN_RAW_PARAMS(MASTER_CLOCK/2, 456, 0, 336, 262, 0, 240)
MDRV_VIDEO_START(atetris)
MDRV_VIDEO_UPDATE(atetris)
@ -391,13 +414,13 @@ static MACHINE_DRIVER_START( atetrsb2 )
/* sound hardware */
MDRV_SPEAKER_STANDARD_MONO("mono")
MDRV_SOUND_ADD(SN76496, 14745600/8)
MDRV_SOUND_ADD(SN76496, BOOTLEG_CLOCK/8)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MDRV_SOUND_ADD(SN76496, 14745600/8)
MDRV_SOUND_ADD(SN76496, BOOTLEG_CLOCK/8)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MDRV_SOUND_ADD(SN76496, 14745600/8)
MDRV_SOUND_ADD(SN76496, BOOTLEG_CLOCK/8)
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50)
MACHINE_DRIVER_END
@ -496,9 +519,9 @@ static DRIVER_INIT( atetris )
*
*************************************/
GAME( 1988, atetris, 0, atetris, atetris, atetris, ROT0, "Atari Games", "Tetris (set 1)", 0 )
GAME( 1988, atetrisa, atetris, atetris, atetris, atetris, ROT0, "Atari Games", "Tetris (set 2)", 0 )
GAME( 1988, atetrisb, atetris, atetris, atetris, atetris, ROT0, "bootleg", "Tetris (bootleg set 1)", 0 )
GAME( 1988, atetrsb2, atetris, atetrsb2, atetris, atetris, ROT0, "bootleg", "Tetris (bootleg set 2)", 0 )
GAME( 1989, atetcktl, atetris, atetris, atetcktl, atetris, ROT270, "Atari Games", "Tetris (Cocktail set 1)", 0 )
GAME( 1989, atetckt2, atetris, atetris, atetcktl, atetris, ROT270, "Atari Games", "Tetris (Cocktail set 2)", 0 )
GAME( 1988, atetris, 0, atetris, atetris, atetris, ROT0, "Atari Games", "Tetris (set 1)", GAME_SUPPORTS_SAVE )
GAME( 1988, atetrisa, atetris, atetris, atetris, atetris, ROT0, "Atari Games", "Tetris (set 2)", GAME_SUPPORTS_SAVE )
GAME( 1988, atetrisb, atetris, atetris, atetris, atetris, ROT0, "bootleg", "Tetris (bootleg set 1)", GAME_SUPPORTS_SAVE )
GAME( 1988, atetrsb2, atetris, atetrsb2, atetris, atetris, ROT0, "bootleg", "Tetris (bootleg set 2)", GAME_SUPPORTS_SAVE )
GAME( 1989, atetcktl, atetris, atetris, atetcktl, atetris, ROT270, "Atari Games", "Tetris (Cocktail set 1)", GAME_SUPPORTS_SAVE )
GAME( 1989, atetckt2, atetris, atetris, atetcktl, atetris, ROT270, "Atari Games", "Tetris (Cocktail set 2)", GAME_SUPPORTS_SAVE )