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Completed memory maps per Charles' updated docs.

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This commit is contained in:
Aaron Giles 2008-10-05 00:07:36 +00:00
parent 96ea69015f
commit dfa4d1a50f
1 changed files with 81 additions and 105 deletions
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138
src/mame/drivers/segas24.c
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@ -342,6 +342,7 @@ Notes:
#include "sound/2151intf.h" #include "sound/2151intf.h"
#define MASTER_CLOCK XTAL_20MHz #define MASTER_CLOCK XTAL_20MHz
#define VIDEO_CLOCK XTAL_32MHz
UINT16* s24_mainram1; UINT16* s24_mainram1;
@ -1008,61 +1009,39 @@ fc-ff ramhi
*************************************/ *************************************/
/* /*
000000-03FFFF : ROM (256K) Both CPUs have the same memory map, except for the first 512K where
040000-07FFFF : ROM (mirror) CPU A has ROM and CPU B has work RAM mapped there.
080000-0BFFFF : CPU A work RAM (256K)
0C0000-0FFFFF : CPU A work RAM (mirror)
100000-13FFFF : ROM (mirror) The memory map can be broken down into the following regions:
140000-17FFFF : ROM (mirror)
180000-1BFFFF : ROM (mirror)
1C0000-1FFFFF : ROM (mirror)
200000-20FFFF : Tilemap generator name table RAM (64K)
210000-21FFFF : Tilemap generator name table RAM (mirror) (*1)
220000-27FFFF : Unused (returns $FFFF), write-only registers are:
240000.w : Framebuffer read-out starting X position ($FFCE = Tilemap pixel 0)
260000.w : Framebuffer read-out starting Y position ($FBF0 = Tilemap line 0)
270001.b : Display mode (00=normal, 01=invalid) (*3)
280000-29FFFF : Tilemap generator pattern RAM (128K)
2A0000-2BFFFF : Tilemap generator pattern RAM (mirror)
2C0000-2DFFFF : Tilemap generator pattern RAM (mirror)
2E0000-2FFFFF : Tilemap generator pattern RAM (mirror)
300000-3FFFFF : Mirror of 200000-2FFFFF
400000-403FFF : Color RAM (16K)
404000-407FFF : Mixer chip registers
408000-5FFFFF : Mirror of 400000-407FFF
600000-6FFFFF : Object generator RAM (256K) (*2)
700000-7FFFFF : Mirror of 600000-6FFFFF
000000-07FFFF : BIOS ROM (for CPU A only)
CPU B work RAM (for CPU B only)
080000-0FFFFF : CPU A work RAM
100000-1FFFFF : BIOS ROM
200000-3FFFFF : Tilemap generator
400000-5FFFFF : Mixer chip
600000-7FFFFF : Sprite generator
800000-9FFFFF : I/O chip 800000-9FFFFF : I/O chip
A00000-AFFFFF : Timer and interrupt controller chip
B00000-EFFFFF : Extra chip selects for expansion
F00000-F7FFFF : CPU B work RAM
F80000-FFFFFF : CPU A work RAM
A00000-AFFFFF : Interrupt controller and timer registers The BIOS ROM mirror at $100000 is common to both CPUs.
B00000-BFFFFF : /EXCS0 and /DTK0 area (Floppy disk controller board)
C00000-CFFFFF : /EXCS1 and /DTK1 area (HotRod analog I/O board)
D00000-DFFFFF : /EXCS2 and /DTK2 area (30-pin I/O expansion connector)
E00000-EFFFFF : CPU hangs when accessing (no DTACK)
F00000-F3FFFF : CPU B work RAM (256K)
F40000-F7FFFF : CPU B work RAM (mirror)
F80000-FBFFFF : CPU A work RAM (mirror)
FC0000-FFFFFF : CPU A work RAM (mirror)
*/ */
static ADDRESS_MAP_START( system24_cpu1_map, ADDRESS_SPACE_PROGRAM, 16 ) static ADDRESS_MAP_START( system24_cpu1_map, ADDRESS_SPACE_PROGRAM, 16 )
AM_RANGE(0x000000, 0x03ffff) AM_MIRROR(0x040000) AM_ROM AM_REGION("main", 0) AM_RANGE(0x000000, 0x03ffff) AM_MIRROR(0x040000) AM_ROM AM_REGION("main", 0)
AM_RANGE(0x080000, 0x0bffff) AM_MIRROR(0x040000) AM_RAM AM_SHARE(2) AM_RANGE(0x080000, 0x0bffff) AM_MIRROR(0x040000) AM_RAM AM_SHARE(1)
AM_RANGE(0x100000, 0x13ffff) AM_MIRROR(0x0c0000) AM_ROM AM_REGION("main", 0) AM_RANGE(0x100000, 0x13ffff) AM_MIRROR(0x0c0000) AM_ROM AM_REGION("main", 0)
AM_RANGE(0x200000, 0x20ffff) AM_MIRROR(0x110000) AM_READWRITE(sys24_tile_r, sys24_tile_w) AM_RANGE(0x200000, 0x20ffff) AM_MIRROR(0x110000) AM_READWRITE(sys24_tile_r, sys24_tile_w)
AM_RANGE(0x220000, 0x220001) AM_MIRROR(0x100000) AM_WRITENOP // Unknown, always 0 AM_RANGE(0x220000, 0x220001) AM_MIRROR(0x11fffe) AM_WRITENOP /* Horizontal split position (ABSEL) */
AM_RANGE(0x240000, 0x240001) AM_MIRROR(0x100000) AM_WRITENOP // Horizontal synchronization register AM_RANGE(0x240000, 0x240001) AM_MIRROR(0x11fffe) AM_WRITENOP /* Scanline trigger position (XHOUT) */
AM_RANGE(0x260000, 0x260001) AM_MIRROR(0x100000) AM_WRITENOP // Vertical synchronization register AM_RANGE(0x260000, 0x260001) AM_MIRROR(0x10fffe) AM_WRITENOP /* Frame trigger position (XVOUT) */
AM_RANGE(0x270000, 0x270001) AM_MIRROR(0x100000) AM_WRITENOP // Video synchronization switch AM_RANGE(0x270000, 0x270001) AM_MIRROR(0x10fffe) AM_WRITENOP /* Synchronization mode */
AM_RANGE(0x280000, 0x29ffff) AM_MIRROR(0x160000) AM_READWRITE(sys24_char_r, sys24_char_w) AM_RANGE(0x280000, 0x29ffff) AM_MIRROR(0x160000) AM_READWRITE(sys24_char_r, sys24_char_w)
AM_RANGE(0x400000, 0x403fff) AM_MIRROR(0x1f8000) AM_RAM_WRITE(system24temp_sys16_paletteram1_w) AM_BASE(&paletteram16) AM_RANGE(0x400000, 0x403fff) AM_MIRROR(0x1f8000) AM_RAM_WRITE(system24temp_sys16_paletteram1_w) AM_BASE(&paletteram16)
AM_RANGE(0x404000, 0x40401f) AM_MIRROR(0x1fbfe0) AM_READWRITE(sys24_mixer_r, sys24_mixer_w) AM_RANGE(0x404000, 0x40401f) AM_MIRROR(0x1fbfe0) AM_READWRITE(sys24_mixer_r, sys24_mixer_w)
AM_RANGE(0x600000, 0x63ffff) AM_MIRROR(0x1c0000) AM_READWRITE(sys24_sprite_r, sys24_sprite_w) AM_RANGE(0x600000, 0x63ffff) AM_MIRROR(0x180000) AM_READWRITE(sys24_sprite_r, sys24_sprite_w)
AM_RANGE(0x800000, 0x80007f) AM_MIRROR(0x1ffe00) AM_READWRITE(system24temp_sys16_io_r, system24temp_sys16_io_w) AM_RANGE(0x800000, 0x80007f) AM_MIRROR(0x1ffe00) AM_READWRITE(system24temp_sys16_io_r, system24temp_sys16_io_w)
AM_RANGE(0x800100, 0x800101) AM_MIRROR(0x1ffe00) AM_WRITE(ym_register_w) AM_RANGE(0x800100, 0x800101) AM_MIRROR(0x1ffe00) AM_WRITE(ym_register_w)
AM_RANGE(0x800102, 0x800103) AM_MIRROR(0x1ffe00) AM_READWRITE(ym_status_r, ym_data_w) AM_RANGE(0x800102, 0x800103) AM_MIRROR(0x1ffe00) AM_READWRITE(ym_status_r, ym_data_w)
@ -1076,11 +1055,12 @@ static ADDRESS_MAP_START( system24_cpu1_map, ADDRESS_SPACE_PROGRAM, 16 )
AM_RANGE(0xc80000, 0xcbffff) AM_ROMBANK(2) AM_RANGE(0xc80000, 0xcbffff) AM_ROMBANK(2)
AM_RANGE(0xcc0000, 0xcc0001) AM_MIRROR(0x03fff8) AM_READWRITE(curbank_r, curbank_w) AM_RANGE(0xcc0000, 0xcc0001) AM_MIRROR(0x03fff8) AM_READWRITE(curbank_r, curbank_w)
AM_RANGE(0xcc0006, 0xcc0007) AM_MIRROR(0x03fff8) AM_READWRITE(mlatch_r, mlatch_w) AM_RANGE(0xcc0006, 0xcc0007) AM_MIRROR(0x03fff8) AM_READWRITE(mlatch_r, mlatch_w)
//AM_RANGE(0xd00300, 0xd00301) AM_WRITE(SMH_NOP) AM_RANGE(0xf00000, 0xf3ffff) AM_MIRROR(0x040000) AM_RAM AM_SHARE(2)
AM_RANGE(0xf00000, 0xf3ffff) AM_MIRROR(0x040000) AM_RAM AM_SHARE(3) AM_RANGE(0xf80000, 0xfbffff) AM_MIRROR(0x040000) AM_RAM AM_SHARE(1)
AM_RANGE(0xf80000, 0xfbffff) AM_MIRROR(0x040000) AM_RAM AM_SHARE(2)
ADDRESS_MAP_END ADDRESS_MAP_END
/************************************* /*************************************
* *
* CPU 2 memory handlers * CPU 2 memory handlers
@ -1088,39 +1068,37 @@ ADDRESS_MAP_END
*************************************/ *************************************/
static ADDRESS_MAP_START( system24_cpu2_map, ADDRESS_SPACE_PROGRAM, 16 ) static ADDRESS_MAP_START( system24_cpu2_map, ADDRESS_SPACE_PROGRAM, 16 )
AM_RANGE(0x000000, 0x03ffff) AM_RAM AM_SHARE(3) AM_BASE(&s24_mainram1) // RAM here overrides the ROM mirror AM_RANGE(0x000000, 0x03ffff) AM_MIRROR(0x040000) AM_RAM AM_SHARE(2) AM_BASE(&s24_mainram1)
AM_RANGE(0x040000, 0x07ffff) AM_ROM AM_REGION("main", 0) AM_RANGE(0x080000, 0x0bffff) AM_MIRROR(0x040000) AM_RAM AM_SHARE(1)
AM_RANGE(0x080000, 0x0bffff) AM_MIRROR(0x040000) AM_RAM AM_SHARE(2) AM_RANGE(0x100000, 0x13ffff) AM_MIRROR(0x0c0000) AM_ROM AM_REGION("main", 0)
AM_RANGE(0x100000, 0x13ffff) AM_MIRROR(0x040000) AM_ROM AM_REGION("main", 0) AM_RANGE(0x200000, 0x20ffff) AM_MIRROR(0x110000) AM_READWRITE(sys24_tile_r, sys24_tile_w)
AM_RANGE(0x200000, 0x20ffff) AM_READWRITE(sys24_tile_r, sys24_tile_w) AM_RANGE(0x220000, 0x220001) AM_MIRROR(0x11fffe) AM_WRITENOP /* Horizontal split position (ABSEL) */
AM_RANGE(0x220000, 0x220001) AM_WRITENOP // Unknown, always 0 AM_RANGE(0x240000, 0x240001) AM_MIRROR(0x11fffe) AM_WRITENOP /* Scanline trigger position (XHOUT) */
AM_RANGE(0x240000, 0x240001) AM_WRITENOP // Horizontal synchronization register AM_RANGE(0x260000, 0x260001) AM_MIRROR(0x10fffe) AM_WRITENOP /* Frame trigger position (XVOUT) */
AM_RANGE(0x260000, 0x260001) AM_WRITENOP // Vertical synchronization register AM_RANGE(0x270000, 0x270001) AM_MIRROR(0x10fffe) AM_WRITENOP /* Synchronization mode */
AM_RANGE(0x270000, 0x270001) AM_WRITENOP // Video synchronization switch AM_RANGE(0x280000, 0x29ffff) AM_MIRROR(0x160000) AM_READWRITE(sys24_char_r, sys24_char_w)
AM_RANGE(0x280000, 0x29ffff) AM_READWRITE(sys24_char_r, sys24_char_w) AM_RANGE(0x400000, 0x403fff) AM_MIRROR(0x1f8000) AM_RAM_WRITE(system24temp_sys16_paletteram1_w)
AM_RANGE(0x400000, 0x403fff) AM_RAM_WRITE(system24temp_sys16_paletteram1_w) AM_RANGE(0x404000, 0x40401f) AM_MIRROR(0x1fbfe0) AM_READWRITE(sys24_mixer_r, sys24_mixer_w)
AM_RANGE(0x404000, 0x40401f) AM_READWRITE(sys24_mixer_r, sys24_mixer_w) AM_RANGE(0x600000, 0x63ffff) AM_MIRROR(0x180000) AM_READWRITE(sys24_sprite_r, sys24_sprite_w)
AM_RANGE(0x600000, 0x63ffff) AM_READWRITE(sys24_sprite_r, sys24_sprite_w) AM_RANGE(0x800000, 0x80007f) AM_MIRROR(0x1ffe00) AM_READWRITE(system24temp_sys16_io_r, system24temp_sys16_io_w)
AM_RANGE(0x800000, 0x80007f) AM_READWRITE(system24temp_sys16_io_r, system24temp_sys16_io_w) AM_RANGE(0x800100, 0x800101) AM_MIRROR(0x1ffe00) AM_WRITE(ym_register_w)
AM_RANGE(0x800100, 0x800101) AM_WRITE(ym_register_w) AM_RANGE(0x800102, 0x800103) AM_MIRROR(0x1ffe00) AM_READWRITE(ym_status_r, ym_data_w)
AM_RANGE(0x800102, 0x800103) AM_READWRITE(ym_status_r, ym_data_w) AM_RANGE(0xa00000, 0xa00007) AM_MIRROR(0x0ffff8) AM_READWRITE(irq_r, irq_w)
AM_RANGE(0xa00000, 0xa00007) AM_READWRITE(irq_r, irq_w) AM_RANGE(0xb00000, 0xb00007) AM_MIRROR(0x07fff0) AM_READWRITE(fdc_r, fdc_w)
AM_RANGE(0xb00000, 0xb00007) AM_READWRITE(fdc_r, fdc_w) AM_RANGE(0xb00008, 0xb0000f) AM_MIRROR(0x07fff0) AM_READWRITE(fdc_status_r, fdc_ctrl_w)
AM_RANGE(0xb00008, 0xb0000f) AM_READWRITE(fdc_status_r, fdc_ctrl_w)
AM_RANGE(0xb80000, 0xbbffff) AM_ROMBANK(1) AM_RANGE(0xb80000, 0xbbffff) AM_ROMBANK(1)
AM_RANGE(0xbc0000, 0xbc0001) AM_READWRITE(curbank_r, curbank_w) AM_RANGE(0xbc0000, 0xbc0001) AM_MIRROR(0x03fff8) AM_READWRITE(curbank_r, curbank_w)
AM_RANGE(0xbc0006, 0xbc0007) AM_READWRITE(mlatch_r, mlatch_w) AM_RANGE(0xbc0006, 0xbc0007) AM_MIRROR(0x03fff8) AM_READWRITE(mlatch_r, mlatch_w)
AM_RANGE(0xc00000, 0xc00011) AM_READWRITE(hotrod3_ctrl_r, hotrod3_ctrl_w) AM_RANGE(0xc00000, 0xc00011) AM_MIRROR(0x07ffe0) AM_READWRITE(hotrod3_ctrl_r, hotrod3_ctrl_w)
AM_RANGE(0xc80000, 0xcbffff) AM_ROMBANK(2) AM_RANGE(0xc80000, 0xcbffff) AM_ROMBANK(2)
AM_RANGE(0xcc0000, 0xcc0001) AM_READWRITE(curbank_r, curbank_w) AM_RANGE(0xcc0000, 0xcc0001) AM_MIRROR(0x03fff8) AM_READWRITE(curbank_r, curbank_w)
AM_RANGE(0xcc0006, 0xcc0007) AM_READWRITE(mlatch_r, mlatch_w) AM_RANGE(0xcc0006, 0xcc0007) AM_MIRROR(0x03fff8) AM_READWRITE(mlatch_r, mlatch_w)
AM_RANGE(0xd00300, 0xd00301) AM_WRITE(SMH_NOP) AM_RANGE(0xf00000, 0xf3ffff) AM_MIRROR(0x040000) AM_RAM AM_SHARE(2)
AM_RANGE(0xf00000, 0xf3ffff) AM_RAM AM_SHARE(3) AM_RANGE(0xf80000, 0xfbffff) AM_MIRROR(0x040000) AM_RAM AM_SHARE(1)
AM_RANGE(0xf40000, 0xf7ffff) AM_ROM AM_REGION("main", 0)
AM_RANGE(0xf80000, 0xfbffff) AM_MIRROR(0x040000) AM_RAM AM_SHARE(2)
ADDRESS_MAP_END ADDRESS_MAP_END
/************************************* /*************************************
* *
* Generic driver initialization * Generic driver initialization
@ -1782,6 +1760,8 @@ static const ym2151_interface ym2151_config =
irq_ym irq_ym
}; };
/************************************* /*************************************
* *
* Generic machine drivers * Generic machine drivers
@ -1805,7 +1785,7 @@ static MACHINE_DRIVER_START( system24 )
MDRV_VIDEO_ATTRIBUTES(VIDEO_UPDATE_AFTER_VBLANK) MDRV_VIDEO_ATTRIBUTES(VIDEO_UPDATE_AFTER_VBLANK)
MDRV_SCREEN_ADD("main", RASTER) MDRV_SCREEN_ADD("main", RASTER)
MDRV_SCREEN_RAW_PARAMS(XTAL_16MHz, 656, 0/*+69*/, 496/*+69*/, 424, 0/*+25*/, 384/*+25*/) MDRV_SCREEN_RAW_PARAMS(VIDEO_CLOCK/2, 656, 0/*+69*/, 496/*+69*/, 424, 0/*+25*/, 384/*+25*/)
MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16)
MDRV_PALETTE_LENGTH(8192*2) MDRV_PALETTE_LENGTH(8192*2)
@ -1825,6 +1805,8 @@ static MACHINE_DRIVER_START( system24 )
MDRV_SOUND_ROUTE(ALL_OUTPUTS, "right", 0.50) MDRV_SOUND_ROUTE(ALL_OUTPUTS, "right", 0.50)
MACHINE_DRIVER_END MACHINE_DRIVER_END
/************************************* /*************************************
* *
* ROM definition(s) * ROM definition(s)
@ -2197,7 +2179,6 @@ static DRIVER_INIT(quizmeku)
static DRIVER_INIT( mahmajn ) static DRIVER_INIT( mahmajn )
{ {
system24temp_sys16_io_set_callbacks(mahmajn_io_r, mahmajn_io_w, resetcontrol_w, iod_r, iod_w); system24temp_sys16_io_set_callbacks(mahmajn_io_r, mahmajn_io_w, resetcontrol_w, iod_r, iod_w);
mlatch_table = mahmajn_mlt; mlatch_table = mahmajn_mlt;
track_size = 0; track_size = 0;
@ -2206,7 +2187,6 @@ static DRIVER_INIT(mahmajn)
static DRIVER_INIT( mahmajn2 ) static DRIVER_INIT( mahmajn2 )
{ {
system24temp_sys16_io_set_callbacks(mahmajn_io_r, mahmajn_io_w, resetcontrol_w, iod_r, iod_w); system24temp_sys16_io_set_callbacks(mahmajn_io_r, mahmajn_io_w, resetcontrol_w, iod_r, iod_w);
mlatch_table = mahmajn2_mlt; mlatch_table = mahmajn2_mlt;
track_size = 0; track_size = 0;
@ -2252,7 +2232,6 @@ static DRIVER_INIT(sspirits)
mlatch_table = 0; mlatch_table = 0;
track_size = 0x2d00; track_size = 0x2d00;
s24_fd1094_driver_init(machine); s24_fd1094_driver_init(machine);
} }
static DRIVER_INIT( sspiritj ) static DRIVER_INIT( sspiritj )
@ -2261,7 +2240,6 @@ static DRIVER_INIT(sspiritj)
mlatch_table = 0; mlatch_table = 0;
track_size = 0x2f00; track_size = 0x2f00;
s24_fd1094_driver_init(machine); s24_fd1094_driver_init(machine);
} }
static DRIVER_INIT( dcclubfd ) static DRIVER_INIT( dcclubfd )
@ -2270,7 +2248,6 @@ static DRIVER_INIT(dcclubfd)
mlatch_table = dcclub_mlt; mlatch_table = dcclub_mlt;
track_size = 0x2d00; track_size = 0x2d00;
s24_fd1094_driver_init(machine); s24_fd1094_driver_init(machine);
} }
@ -2280,7 +2257,6 @@ static DRIVER_INIT(sgmast)
mlatch_table = 0; mlatch_table = 0;
track_size = 0x2d00; track_size = 0x2d00;
s24_fd1094_driver_init(machine); s24_fd1094_driver_init(machine);
} }
static DRIVER_INIT( qsww ) static DRIVER_INIT( qsww )