mirror of
https://github.com/holub/mame
synced 2025-05-31 01:51:46 +03:00
1185 lines
31 KiB
C
1185 lines
31 KiB
C
/*
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* msx.c: MSX emulation
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*
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* Copyright (C) 2004 Sean Young
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*
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* Todo:
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*
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* - fix mouse support
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* - cassette support doesn't work
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* - Ensure changing cartridge after boot works
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* - wd2793, nms8255
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*/
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#include "includes/msx.h"
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#define VERBOSE 0
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static void msx_memory_init (running_machine &machine);
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static void msx_memory_set_carts (running_machine &machine);
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static int msx_probe_type (UINT8* pmem, int size)
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{
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int kon4, kon5, asc8, asc16, i;
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if (size <= 0x10000) return 0;
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if ( (pmem[0x10] == 'Y') && (pmem[0x11] == 'Z') && (size > 0x18000) )
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return 6;
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kon4 = kon5 = asc8 = asc16 = 0;
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for (i=0;i<size-3;i++)
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{
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if (pmem[i] == 0x32 && pmem[i+1] == 0)
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{
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switch (pmem[i+2])
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{
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case 0x60:
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case 0x70:
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asc16++;
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asc8++;
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break;
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case 0x68:
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case 0x78:
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asc8++;
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asc16--;
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}
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switch (pmem[i+2])
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{
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case 0x60:
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case 0x80:
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case 0xa0:
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kon4++;
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break;
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case 0x50:
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case 0x70:
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case 0x90:
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case 0xb0:
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kon5++;
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}
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}
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}
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if (MAX (kon4, kon5) > MAX (asc8, asc16) )
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return (kon5 > kon4) ? 2 : 3;
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else
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return (asc8 > asc16) ? 4 : 5;
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}
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DEVICE_IMAGE_LOAD (msx_cart)
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{
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msx_state *state = image.device().machine().driver_data<msx_state>();
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int size;
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int size_aligned;
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UINT8 *mem;
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int type = -1;
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const char *extra = NULL;
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char *sramfile;
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slot_state *st;
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int id = -1;
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if (strcmp(image.device().tag(),":cart1")==0)
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id = 0;
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if (strcmp(image.device().tag(),":cart2")==0)
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id = 1;
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if( id == -1 )
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{
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//logerror ("error: invalid cart tag '%s'\n", image->tag);
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return IMAGE_INIT_FAIL;
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}
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if ( image.software_entry() != NULL )
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{
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/* Load software from software list */
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/* TODO: Add proper SRAM (size) handling */
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const char *mapper = software_part_get_feature( (software_part*)image.part_entry(), "mapper" );
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const char *sram = software_part_get_feature( (software_part*)image.part_entry(), "sram" );
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if ( mapper != NULL )
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{
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/* TODO: Split out the SRAM recognition code and 8KB/16KB bank configuration */
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static const struct { const char *mapper_name; bool sram_present; int mapper_type; } mapper_types[] =
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{
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{ "M60002-0125SP", false, SLOT_ASCII8 },
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{ "M60002-0125SP", true, SLOT_ASCII8_SRAM },
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{ "LZ93A13", false, SLOT_ASCII8 },
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{ "LZ93A13", true, SLOT_ASCII8_SRAM },
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{ "LZ93A13-16", false, SLOT_ASCII16 },
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{ "LZ93A13-16", true, SLOT_ASCII16_SRAM },
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{ "M60002-0125SP-16", false, SLOT_ASCII16 },
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{ "M60002-0125SP-16", true, SLOT_ASCII16_SRAM },
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{ "IREM TAM-S1", false, SLOT_RTYPE },
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{ "MR6401", false, SLOT_ASCII16 },
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{ "NEOS MR6401", false, SLOT_ASCII8 },
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{ "BS6202", false, SLOT_ASCII8 },
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{ "BS6101", false, SLOT_ASCII8 },
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{ "BS6101-16", false, SLOT_ASCII16 },
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};
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for ( int i = 0; i < ARRAY_LENGTH(mapper_types) && type < 0; i++ )
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{
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if ( !mame_stricmp( mapper, mapper_types[i].mapper_name ) )
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{
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if ( sram == NULL && ! mapper_types[i].sram_present )
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type = mapper_types[i].mapper_type;
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if ( sram != NULL && mapper_types[i].sram_present )
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type = mapper_types[i].mapper_type;
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}
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}
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if ( -1 == type )
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logerror( "Mapper '%s' not recognized!\n", mapper );
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}
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UINT8 *rom_region = image.get_software_region( "rom" );
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size = size_aligned = image.get_software_region_length( "rom" );
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mem = auto_alloc_array( image.device().machine(), UINT8, size_aligned );
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memcpy( mem, rom_region, size_aligned );
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}
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else
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{
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/* Old style image loading */
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size = image.length ();
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if (size < 0x2000)
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{
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logerror ("cart #%d: error: file is smaller than 2kb, too small to be true!\n", id);
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return IMAGE_INIT_FAIL;
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}
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/* allocate memory and load */
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size_aligned = 0x2000;
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while (size_aligned < size)
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size_aligned *= 2;
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mem = auto_alloc_array(image.device().machine(),UINT8,size_aligned);
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if (!mem)
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{
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logerror ("cart #%d: error: failed to allocate memory for cartridge\n", id);
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return IMAGE_INIT_FAIL;
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}
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if (size < size_aligned)
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memset (mem, 0xff, size_aligned);
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if (image.fread(mem, size) != size)
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{
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logerror ("cart #%d: %s: can't read full %d bytes\n", id, image.filename (), size);
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return IMAGE_INIT_FAIL;
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}
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/* see if msx.crc will tell us more */
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extra = hashfile_extrainfo(image);
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if (!extra)
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{
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logerror("cart #%d: warning: no information in crc file\n", id);
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type = -1;
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}
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else
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if ((1 != sscanf(extra, "%d", &type) ) || type < 0 || type > SLOT_LAST_CARTRIDGE_TYPE)
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{
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logerror("cart #%d: warning: information in crc file not valid\n", id);
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type = -1;
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}
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else
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logerror ("cart #%d: info: cart extra info: '%s' = %s\n", id, extra, msx_slot_list[type].name);
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/* if not, attempt autodetection */
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if (type < 0)
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{
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type = msx_probe_type (mem, size);
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if (mem[0] != 'A' || mem[1] != 'B')
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logerror("cart #%d: %s: May not be a valid ROM file\n", id, image.filename ());
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logerror("cart #%d: Probed cartridge mapper %d/%s\n", id, type, msx_slot_list[type].name);
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}
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}
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/* mapper type 0 always needs 64kB */
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if (!type && size_aligned != 0x10000)
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{
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UINT8 *old_mem = mem;
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int old_size_aligned = size_aligned;
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size_aligned = 0x10000;
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mem = auto_alloc_array(image.device().machine(),UINT8, 0x10000);
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if (!mem)
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{
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auto_free(image.device().machine(),old_mem);
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logerror ("cart #%d: error: cannot allocate memory\n", id);
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return IMAGE_INIT_FAIL;
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}
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if (size < 0x10000)
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memset (mem + size, 0xff, 0x10000 - size);
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if (size > 0x10000)
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{
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logerror ("cart #%d: warning: rom truncated to 64kb due to mapperless type (possibly detected)\n", id);
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size = 0x10000;
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}
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/* Copy old contents to newly claimed memory */
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memcpy(mem,old_mem,old_size_aligned);
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auto_free(image.device().machine(),old_mem);
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}
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/* mapper type 0 (ROM) might need moving around a bit */
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if (!type)
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{
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int i, page = 1;
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/* find the correct page */
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if (mem[0] == 'A' && mem[1] == 'B')
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{
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for (i=2; i<=8; i += 2)
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{
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if (mem[i] || mem[i+1])
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{
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page = mem[i+1] / 0x40;
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break;
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}
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}
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}
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if (size <= 0x4000)
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{
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if (page == 1 || page == 2)
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{
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/* copy to the respective page */
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memcpy (mem + (page * 0x4000), mem, 0x4000);
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memset (mem, 0xff, 0x4000);
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}
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else
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{
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/* memory is repeated 4 times */
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page = -1;
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memcpy (mem + 0x4000, mem, 0x4000);
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memcpy (mem + 0x8000, mem, 0x4000);
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memcpy (mem + 0xc000, mem, 0x4000);
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}
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}
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else /*if (size <= 0xc000) */
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{
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if (page)
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{
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/* shift up 16kB; custom memcpy so overlapping memory isn't corrupted. ROM starts in page 1 (0x4000) */
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UINT8 *m;
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page = 1;
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i = 0xc000; m = mem + 0xffff;
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while (i--)
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{
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*m = *(m - 0x4000);
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m--;
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}
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memset (mem, 0xff, 0x4000);
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}
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}
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if (page)
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logerror ("cart #%d: info: rom in page %d\n", id, page);
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else
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logerror ("cart #%d: info: rom duplicted in all pages\n", id);
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}
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/* kludge */
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if (type == 0)
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type = SLOT_ROM;
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/* allocate and set slot_state for this cartridge */
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st = auto_alloc(image.device().machine(),slot_state);
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if (!st)
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{
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logerror ("cart #%d: error: cannot allocate memory for cartridge state\n", id);
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return IMAGE_INIT_FAIL;
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}
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memset (st, 0, sizeof (slot_state));
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st->m_type = type;
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sramfile = auto_alloc_array(image.device().machine(), char, strlen (image.filename () + 1));
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if (sramfile)
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{
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char *ext;
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strcpy (sramfile, image.basename ());
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ext = strrchr (sramfile, '.');
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if (ext)
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*ext = 0;
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st->m_sramfile = sramfile;
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}
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if (msx_slot_list[type].init (image.device().machine(), st, 0, mem, size_aligned))
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return IMAGE_INIT_FAIL;
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if (msx_slot_list[type].loadsram)
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msx_slot_list[type].loadsram (image.device().machine(), st);
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state->m_cart_state[id] = st;
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msx_memory_set_carts (image.device().machine());
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return IMAGE_INIT_PASS;
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}
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DEVICE_IMAGE_UNLOAD (msx_cart)
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{
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msx_state *state = image.device().machine().driver_data<msx_state>();
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int id = -1;
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if (strcmp(image.device().tag(),":cart1")==0)
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id = 0;
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if (strcmp(image.device().tag(),":cart2")==0)
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id = 1;
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if( id == -1 )
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{
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//logerror ("error: invalid cart tag '%s'\n", image->tag);
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return;
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}
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if (msx_slot_list[state->m_cart_state[id]->m_type].savesram)
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msx_slot_list[state->m_cart_state[id]->m_type].savesram (image.device().machine(), state->m_cart_state[id]);
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}
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void msx_vdp_interrupt(device_t *, v99x8_device &device, int i)
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{
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cputag_set_input_line (device.machine(), "maincpu", 0, (i ? HOLD_LINE : CLEAR_LINE));
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}
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void msx_state::msx_ch_reset_core ()
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{
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msx_memory_reset ();
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msx_memory_map_all ();
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}
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MACHINE_START( msx )
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{
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MACHINE_START_CALL( msx2 );
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}
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MACHINE_START( msx2 )
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{
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msx_state *state = machine.driver_data<msx_state>();
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state->m_port_c_old = 0xff;
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state->m_dsk_stat = 0x7f;
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}
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MACHINE_RESET( msx )
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{
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msx_state *state = machine.driver_data<msx_state>();
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state->msx_ch_reset_core ();
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}
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MACHINE_RESET( msx2 )
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{
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msx_state *state = machine.driver_data<msx_state>();
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state->msx_ch_reset_core ();
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}
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I8255_INTERFACE( msx_ppi8255_interface )
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{
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DEVCB_NULL,
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DEVCB_DRIVER_MEMBER(msx_state, msx_ppi_port_a_w),
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DEVCB_DRIVER_MEMBER(msx_state, msx_ppi_port_b_r),
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DEVCB_NULL,
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DEVCB_NULL,
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DEVCB_DRIVER_MEMBER(msx_state, msx_ppi_port_c_w)
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};
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static const UINT8 cc_op[0x100] = {
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4+1,10+1, 7+1, 6+1, 4+1, 4+1, 7+1, 4+1, 4+1,11+1, 7+1, 6+1, 4+1, 4+1, 7+1, 4+1,
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8+1,10+1, 7+1, 6+1, 4+1, 4+1, 7+1, 4+1,12+1,11+1, 7+1, 6+1, 4+1, 4+1, 7+1, 4+1,
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7+1,10+1,16+1, 6+1, 4+1, 4+1, 7+1, 4+1, 7+1,11+1,16+1, 6+1, 4+1, 4+1, 7+1, 4+1,
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7+1,10+1,13+1, 6+1,11+1,11+1,10+1, 4+1, 7+1,11+1,13+1, 6+1, 4+1, 4+1, 7+1, 4+1,
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4+1, 4+1, 4+1, 4+1, 4+1, 4+1, 7+1, 4+1, 4+1, 4+1, 4+1, 4+1, 4+1, 4+1, 7+1, 4+1,
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4+1, 4+1, 4+1, 4+1, 4+1, 4+1, 7+1, 4+1, 4+1, 4+1, 4+1, 4+1, 4+1, 4+1, 7+1, 4+1,
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4+1, 4+1, 4+1, 4+1, 4+1, 4+1, 7+1, 4+1, 4+1, 4+1, 4+1, 4+1, 4+1, 4+1, 7+1, 4+1,
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7+1, 7+1, 7+1, 7+1, 7+1, 7+1, 4+1, 7+1, 4+1, 4+1, 4+1, 4+1, 4+1, 4+1, 7+1, 4+1,
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4+1, 4+1, 4+1, 4+1, 4+1, 4+1, 7+1, 4+1, 4+1, 4+1, 4+1, 4+1, 4+1, 4+1, 7+1, 4+1,
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4+1, 4+1, 4+1, 4+1, 4+1, 4+1, 7+1, 4+1, 4+1, 4+1, 4+1, 4+1, 4+1, 4+1, 7+1, 4+1,
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4+1, 4+1, 4+1, 4+1, 4+1, 4+1, 7+1, 4+1, 4+1, 4+1, 4+1, 4+1, 4+1, 4+1, 7+1, 4+1,
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4+1, 4+1, 4+1, 4+1, 4+1, 4+1, 7+1, 4+1, 4+1, 4+1, 4+1, 4+1, 4+1, 4+1, 7+1, 4+1,
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5+1,10+1,10+1,10+1,10+1,11+1, 7+1,11+1, 5+1,10+1,10+1, 0 ,10+1,17+1, 7+1,11+1,
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5+1,10+1,10+1,11+1,10+1,11+1, 7+1,11+1, 5+1, 4+1,10+1,11+1,10+1, 0 , 7+1,11+1,
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5+1,10+1,10+1,19+1,10+1,11+1, 7+1,11+1, 5+1, 4+1,10+1, 4+1,10+1, 0 , 7+1,11+1,
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5+1,10+1,10+1, 4+1,10+1,11+1, 7+1,11+1, 5+1, 6+1,10+1, 4+1,10+1, 0 , 7+1,11+1
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};
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static const UINT8 cc_cb[0x100] = {
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8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2,
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8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2,
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8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2,
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8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2,
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8+2, 8+2, 8+2, 8+2, 8+2, 8+2,12+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,12+2, 8+2,
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8+2, 8+2, 8+2, 8+2, 8+2, 8+2,12+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,12+2, 8+2,
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8+2, 8+2, 8+2, 8+2, 8+2, 8+2,12+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,12+2, 8+2,
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8+2, 8+2, 8+2, 8+2, 8+2, 8+2,12+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,12+2, 8+2,
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8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2,
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8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2,
|
|
8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2,
|
|
8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2,
|
|
8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2,
|
|
8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2,
|
|
8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2,
|
|
8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,15+2, 8+2
|
|
};
|
|
|
|
static const UINT8 cc_ed[0x100] = {
|
|
8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,
|
|
8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,
|
|
8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,
|
|
8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,
|
|
12+2,12+2,15+2,20+2, 8+2,14+2, 8+2, 9+2,12+2,12+2,15+2,20+2, 8+2,14+2, 8+2, 9+2,
|
|
12+2,12+2,15+2,20+2, 8+2,14+2, 8+2, 9+2,12+2,12+2,15+2,20+2, 8+2,14+2, 8+2, 9+2,
|
|
12+2,12+2,15+2,20+2, 8+2,14+2, 8+2,18+2,12+2,12+2,15+2,20+2, 8+2,14+2, 8+2,18+2,
|
|
12+2,12+2,15+2,20+2, 8+2,14+2, 8+2, 8+2,12+2,12+2,15+2,20+2, 8+2,14+2, 8+2, 8+2,
|
|
8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,
|
|
8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,
|
|
16+2,16+2,16+2,16+2, 8+2, 8+2, 8+2, 8+2,16+2,16+2,16+2,16+2, 8+2, 8+2, 8+2, 8+2,
|
|
16+2,16+2,16+2,16+2, 8+2, 8+2, 8+2, 8+2,16+2,16+2,16+2,16+2, 8+2, 8+2, 8+2, 8+2,
|
|
8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,
|
|
8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,
|
|
8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2,
|
|
8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2, 8+2
|
|
};
|
|
|
|
static const UINT8 cc_xy[0x100] = {
|
|
4+4+2,10+4+2, 7+4+2, 6+4+2, 4+4+2, 4+4+2, 7+4+2, 4+4+2, 4+4+2,11+4+2, 7+4+2, 6+4+2, 4+4+2, 4+4+2, 7+4+2, 4+4+2,
|
|
8+4+2,10+4+2, 7+4+2, 6+4+2, 4+4+2, 4+4+2, 7+4+2, 4+4+2,12+4+2,11+4+2, 7+4+2, 6+4+2, 4+4+2, 4+4+2, 7+4+2, 4+4+2,
|
|
7+4+2,10+4+2,16+4+2, 6+4+2, 4+4+2, 4+4+2, 7+4+2, 4+4+2, 7+4+2,11+4+2,16+4+2, 6+4+2, 4+4+2, 4+4+2, 7+4+2, 4+4+2,
|
|
7+4+2,10+4+2,13+4+2, 6+4+2,23 +2,23 +2,19 +2, 4+4+2, 7+4+2,11+4+2,13+4+2, 6+4+2, 4+4+2, 4+4+2, 7+4+2, 4+4+2,
|
|
4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2,19 +2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2,19 +2, 4+4+2,
|
|
4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2,19 +2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2,19 +2, 4+4+2,
|
|
4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2,19 +2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2,19 +2, 4+4+2,
|
|
19 +2,19 +2,19 +2,19 +2,19 +2,19 +2, 4+4+2,19 +2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2,19 +2, 4+4+2,
|
|
4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2,19 +2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2,19 +2, 4+4+2,
|
|
4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2,19 +2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2,19 +2, 4+4+2,
|
|
4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2,19 +2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2,19 +2, 4+4+2,
|
|
4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2,19 +2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2, 4+4+2,19 +2, 4+4+2,
|
|
5+4+2,10+4+2,10+4+2,10+4+2,10+4+2,11+4+2, 7+4+2,11+4+2, 5+4+2,10+4+2,10+4+2, 0 +2,10+4+2,17+4+2, 7+4+2,11+4+2,
|
|
5+4+2,10+4+2,10+4+2,11+4+2,10+4+2,11+4+2, 7+4+2,11+4+2, 5+4+2, 4+4+2,10+4+2,11+4+2,10+4+2, 4+4+2, 7+4+2,11+4+2,
|
|
5+4+2,10+4+2,10+4+2,19+4+2,10+4+2,11+4+2, 7+4+2,11+4+2, 5+4+2, 4+4+2,10+4+2, 4+4+2,10+4+2, 4+4+2, 7+4+2,11+4+2,
|
|
5+4+2,10+4+2,10+4+2, 4+4+2,10+4+2,11+4+2, 7+4+2,11+4+2, 5+4+2, 6+4+2,10+4+2, 4+4+2,10+4+2, 4+4+2, 7+4+2,11+4+2
|
|
};
|
|
|
|
static const UINT8 cc_xycb[0x100] = {
|
|
23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,
|
|
23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,
|
|
23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,
|
|
23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,
|
|
20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,
|
|
20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,
|
|
20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,
|
|
20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,20+2,
|
|
23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,
|
|
23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,
|
|
23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,
|
|
23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,
|
|
23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,
|
|
23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,
|
|
23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,
|
|
23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2,23+2
|
|
};
|
|
|
|
/* extra cycles if jr/jp/call taken and 'interrupt latency' on rst 0-7 */
|
|
static const UINT8 cc_ex[0x100] = {
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* DJNZ */
|
|
5, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, /* JR NZ/JR Z */
|
|
5, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, /* JR NC/JR C */
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
5, 5, 5, 5, 0, 0, 0, 0, 5, 5, 5, 5, 0, 0, 0, 0, /* LDIR/CPIR/INIR/OTIR LDDR/CPDR/INDR/OTDR */
|
|
6, 0, 0, 0, 7, 0, 0, 2, 6, 0, 0, 0, 7, 0, 0, 2,
|
|
6, 0, 0, 0, 7, 0, 0, 2, 6, 0, 0, 0, 7, 0, 0, 2,
|
|
6, 0, 0, 0, 7, 0, 0, 2, 6, 0, 0, 0, 7, 0, 0, 2,
|
|
6, 0, 0, 0, 7, 0, 0, 2, 6, 0, 0, 0, 7, 0, 0, 2+1
|
|
};
|
|
|
|
|
|
DRIVER_INIT_MEMBER(msx_state,msx)
|
|
{
|
|
device_set_input_line_vector (machine().device("maincpu"), 0, 0xff);
|
|
|
|
msx_memory_init (machine());
|
|
|
|
z80_set_cycle_tables( machine().device("maincpu"), cc_op, cc_cb, cc_ed, cc_xy, cc_xycb, cc_ex );
|
|
}
|
|
|
|
TIMER_DEVICE_CALLBACK( msx2_interrupt )
|
|
{
|
|
msx_state *state = timer.machine().driver_data<msx_state>();
|
|
state->m_v9938->set_sprite_limit(timer.machine().root_device().ioport("DSW")->read() & 0x20);
|
|
state->m_v9938->set_resolution(timer.machine().root_device().ioport("DSW")->read() & 0x03);
|
|
state->m_v9938->interrupt();
|
|
}
|
|
|
|
INTERRUPT_GEN( msx_interrupt )
|
|
{
|
|
msx_state *state = device->machine().driver_data<msx_state>();
|
|
int i;
|
|
|
|
for (i=0; i<2; i++)
|
|
{
|
|
state->m_mouse[i] = state->ioport(i ? "MOUSE1" : "MOUSE0")->read();
|
|
state->m_mouse_stat[i] = -1;
|
|
}
|
|
}
|
|
|
|
/*
|
|
** The I/O functions
|
|
*/
|
|
|
|
|
|
READ8_MEMBER(msx_state::msx_psg_port_a_r)
|
|
{
|
|
UINT8 data;
|
|
|
|
data = (m_cass->input() > 0.0038 ? 0x80 : 0);
|
|
|
|
if ( (m_psg_b ^ ioport("DSW")->read() ) & 0x40)
|
|
{
|
|
/* game port 2 */
|
|
UINT8 inp = ioport("JOY1")->read();
|
|
if ( !(inp & 0x80) )
|
|
{
|
|
/* joystick */
|
|
data |= ( inp & 0x7f );
|
|
}
|
|
else
|
|
{
|
|
/* mouse */
|
|
data |= ( inp & 0x70 );
|
|
if (m_mouse_stat[1] < 0)
|
|
data |= 0xf;
|
|
else
|
|
data |= ~(m_mouse[1] >> (4*m_mouse_stat[1]) ) & 15;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* game port 1 */
|
|
UINT8 inp = ioport("JOY0")->read();
|
|
if ( !(inp & 0x80) )
|
|
{
|
|
/* joystick */
|
|
data |= ( inp & 0x7f );
|
|
}
|
|
else
|
|
{
|
|
/* mouse */
|
|
data |= ( inp & 0x70 );
|
|
if (m_mouse_stat[0] < 0)
|
|
data |= 0xf;
|
|
else
|
|
data |= ~(m_mouse[0] >> (4*m_mouse_stat[0]) ) & 15;
|
|
}
|
|
}
|
|
|
|
return data;
|
|
}
|
|
|
|
READ8_MEMBER(msx_state::msx_psg_port_b_r)
|
|
{
|
|
return m_psg_b;
|
|
}
|
|
|
|
WRITE8_MEMBER(msx_state::msx_psg_port_a_w)
|
|
{
|
|
}
|
|
|
|
WRITE8_MEMBER(msx_state::msx_psg_port_b_w)
|
|
{
|
|
/* Arabic or kana mode led */
|
|
if ( (data ^ m_psg_b) & 0x80)
|
|
set_led_status (machine(), 2, !(data & 0x80) );
|
|
|
|
if ( (m_psg_b ^ data) & 0x10)
|
|
{
|
|
if (++m_mouse_stat[0] > 3) m_mouse_stat[0] = -1;
|
|
}
|
|
if ( (m_psg_b ^ data) & 0x20)
|
|
{
|
|
if (++m_mouse_stat[1] > 3) m_mouse_stat[1] = -1;
|
|
}
|
|
|
|
m_psg_b = data;
|
|
}
|
|
|
|
WRITE8_DEVICE_HANDLER( msx_printer_strobe_w )
|
|
{
|
|
device->machine().device<centronics_device>("centronics")->strobe_w(BIT(data, 1));
|
|
}
|
|
|
|
WRITE8_DEVICE_HANDLER( msx_printer_data_w )
|
|
{
|
|
if (device->machine().root_device().ioport("DSW")->read() & 0x80)
|
|
/* SIMPL emulation */
|
|
device->machine().device<dac_device>("dac")->write_signed8(data);
|
|
else
|
|
device->machine().device<centronics_device>("centronics")->write(*device->machine().memory().first_space(), 0, data);
|
|
}
|
|
|
|
READ8_DEVICE_HANDLER( msx_printer_status_r )
|
|
{
|
|
UINT8 result = 0xfd;
|
|
|
|
if (device->machine().root_device().ioport("DSW")->read() & 0x80)
|
|
return 0xff;
|
|
|
|
result |= device->machine().device<centronics_device>("centronics")->busy_r() << 1;
|
|
|
|
return result;
|
|
}
|
|
|
|
WRITE8_MEMBER( msx_state::msx_fmpac_w )
|
|
{
|
|
if (m_opll_active)
|
|
{
|
|
if (offset == 1)
|
|
ym2413_w (m_ym, 1, data);
|
|
else
|
|
ym2413_w (m_ym, 0, data);
|
|
}
|
|
}
|
|
|
|
/*
|
|
** RTC functions
|
|
*/
|
|
|
|
WRITE8_MEMBER( msx_state::msx_rtc_latch_w )
|
|
{
|
|
m_rtc_latch = data & 15;
|
|
}
|
|
|
|
WRITE8_MEMBER( msx_state::msx_rtc_reg_w )
|
|
{
|
|
m_rtc->write(space, m_rtc_latch, data);
|
|
}
|
|
|
|
READ8_MEMBER( msx_state::msx_rtc_reg_r )
|
|
{
|
|
return m_rtc->read(space, m_rtc_latch);
|
|
}
|
|
|
|
/*
|
|
From: erbo@xs4all.nl (erik de boer)
|
|
|
|
sony and philips have used (almost) the same design
|
|
and this is the memory layout
|
|
but it is not a msx standard !
|
|
|
|
WD1793 or wd2793 registers
|
|
|
|
address
|
|
|
|
7FF8H read status register
|
|
write command register
|
|
7FF9H r/w track register (r/o on NMS 8245 and Sony)
|
|
7FFAH r/w sector register (r/o on NMS 8245 and Sony)
|
|
7FFBH r/w data register
|
|
|
|
|
|
hardware registers
|
|
|
|
address
|
|
|
|
7FFCH r/w bit 0 side select
|
|
7FFDH r/w b7>M-on , b6>in-use , b1>ds1 , b0>ds0 (all neg. logic)
|
|
7FFEH not used
|
|
7FFFH read b7>drq , b6>intrq
|
|
|
|
set on 7FFDH bit 2 always to 0 (some use it as disk change reset)
|
|
|
|
*/
|
|
|
|
WRITE_LINE_MEMBER( msx_state::msx_wd179x_intrq_w )
|
|
{
|
|
if (state)
|
|
m_dsk_stat &= ~0x40;
|
|
else
|
|
m_dsk_stat |= 0x40;
|
|
}
|
|
|
|
WRITE_LINE_MEMBER( msx_state::msx_wd179x_drq_w )
|
|
{
|
|
if (state)
|
|
m_dsk_stat &= ~0x80;
|
|
else
|
|
m_dsk_stat |= 0x80;
|
|
}
|
|
|
|
const wd17xx_interface msx_wd17xx_interface =
|
|
{
|
|
DEVCB_LINE_VCC,
|
|
DEVCB_DRIVER_LINE_MEMBER(msx_state, msx_wd179x_intrq_w),
|
|
DEVCB_DRIVER_LINE_MEMBER(msx_state, msx_wd179x_drq_w),
|
|
{FLOPPY_0, FLOPPY_1, NULL, NULL}
|
|
};
|
|
|
|
LEGACY_FLOPPY_OPTIONS_START(msx)
|
|
LEGACY_FLOPPY_OPTION(msx, "dsk", "MSX SS", basicdsk_identify_default, basicdsk_construct_default, NULL,
|
|
HEADS([1])
|
|
TRACKS([80])
|
|
SECTORS([9])
|
|
SECTOR_LENGTH([512])
|
|
FIRST_SECTOR_ID([1]))
|
|
LEGACY_FLOPPY_OPTION(msx, "dsk", "MSX DS", basicdsk_identify_default, basicdsk_construct_default, NULL,
|
|
HEADS([2])
|
|
TRACKS([80])
|
|
SECTORS([9])
|
|
SECTOR_LENGTH([512])
|
|
FIRST_SECTOR_ID([1]))
|
|
LEGACY_FLOPPY_OPTIONS_END
|
|
|
|
/*
|
|
** The PPI functions
|
|
*/
|
|
|
|
WRITE8_MEMBER( msx_state::msx_ppi_port_a_w )
|
|
{
|
|
m_primary_slot = data;
|
|
|
|
if (VERBOSE)
|
|
logerror ("write to primary slot select: %02x\n", m_primary_slot);
|
|
msx_memory_map_all ();
|
|
}
|
|
|
|
WRITE8_MEMBER( msx_state::msx_ppi_port_c_w )
|
|
{
|
|
keylatch = data & 0x0f;
|
|
|
|
/* caps lock */
|
|
if ( BIT(m_port_c_old ^ data, 6) )
|
|
set_led_status (machine(), 1, !BIT(data, 6) );
|
|
|
|
/* key click */
|
|
if ( BIT(m_port_c_old ^ data, 7) )
|
|
m_dac->write_signed8(BIT(data, 7) ? 0x7f : 0);
|
|
|
|
/* cassette motor on/off */
|
|
if ( BIT(m_port_c_old ^ data, 4) )
|
|
m_cass->change_state(BIT(data, 4) ? CASSETTE_MOTOR_DISABLED : CASSETTE_MOTOR_ENABLED, CASSETTE_MASK_MOTOR);
|
|
|
|
/* cassette signal write */
|
|
if ( BIT(m_port_c_old ^ data, 5) )
|
|
m_cass->output(BIT(data, 5) ? -1.0 : 1.0);
|
|
|
|
m_port_c_old = data;
|
|
}
|
|
|
|
READ8_MEMBER( msx_state::msx_ppi_port_b_r )
|
|
{
|
|
UINT8 result = 0xff;
|
|
int row, data;
|
|
static const char *const keynames[] = { "KEY0", "KEY1", "KEY2", "KEY3", "KEY4", "KEY5" };
|
|
|
|
row = keylatch;
|
|
if (row <= 10)
|
|
{
|
|
data = ioport(keynames[row / 2])->read();
|
|
|
|
if (BIT(row, 0))
|
|
data >>= 8;
|
|
result = data & 0xff;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
/************************************************************************
|
|
*
|
|
* New memory emulation !!
|
|
*
|
|
***********************************************************************/
|
|
|
|
static void msx_memory_init (running_machine &machine)
|
|
{
|
|
msx_state *state = machine.driver_data<msx_state>();
|
|
int prim, sec, page, extent, option;
|
|
int size = 0;
|
|
const msx_slot_layout *layout= (msx_slot_layout*)NULL;
|
|
const msx_slot *slot;
|
|
const msx_driver_struct *driver;
|
|
slot_state *st;
|
|
UINT8 *mem = NULL;
|
|
|
|
state->m_empty = auto_alloc_array(machine, UINT8, 0x4000);
|
|
memset (state->m_empty, 0xff, 0x4000);
|
|
|
|
for (prim=0; prim<4; prim++) {
|
|
for (sec=0; sec<4; sec++) {
|
|
for (page=0; page<4; page++) {
|
|
state->m_all_state[prim][sec][page]= (slot_state*)NULL;
|
|
}
|
|
}
|
|
}
|
|
|
|
for (driver = msx_driver_list; driver->name[0]; driver++) {
|
|
if (!strcmp (driver->name, machine.system().name)) {
|
|
layout = driver->layout;
|
|
}
|
|
}
|
|
|
|
if (!layout) {
|
|
logerror ("msx_memory_init: error: missing layout definition in "
|
|
"msx_driver_list\n");
|
|
return;
|
|
}
|
|
|
|
state->layout = layout;
|
|
|
|
for (; layout->entry != MSX_LAYOUT_LAST; layout++) {
|
|
|
|
switch (layout->entry) {
|
|
case MSX_LAYOUT_SLOT_ENTRY:
|
|
prim = layout->slot_primary;
|
|
sec = layout->slot_secondary;
|
|
page = layout->slot_page;
|
|
extent = layout->page_extent;
|
|
|
|
if (layout->slot_secondary) {
|
|
state->m_slot_expanded[layout->slot_primary]= TRUE;
|
|
}
|
|
|
|
slot = &msx_slot_list[layout->type];
|
|
if (slot->slot_type != layout->type) {
|
|
logerror ("internal error: msx_slot_list[%d].type != %d\n",
|
|
slot->slot_type, slot->slot_type);
|
|
}
|
|
|
|
size = layout->size;
|
|
option = layout->option;
|
|
|
|
if (VERBOSE)
|
|
{
|
|
logerror ("slot %d/%d/%d-%d: type %s, size 0x%x\n",
|
|
prim, sec, page, page + extent - 1, slot->name, size);
|
|
}
|
|
|
|
st = (slot_state*)NULL;
|
|
if (layout->type == SLOT_CARTRIDGE1) {
|
|
st = state->m_cart_state[0];
|
|
if (!st) {
|
|
slot = &msx_slot_list[SLOT_SOUNDCARTRIDGE];
|
|
size = 0x20000;
|
|
}
|
|
}
|
|
if (layout->type == SLOT_CARTRIDGE2) {
|
|
st = state->m_cart_state[1];
|
|
if (!st) {
|
|
/* Check whether the optional FM-PAC rom is present */
|
|
option = 0x10000;
|
|
size = 0x10000;
|
|
mem = machine.root_device().memregion("maincpu")->base() + option;
|
|
if (machine.root_device().memregion("maincpu")->bytes() >= size + option && mem[0] == 'A' && mem[1] == 'B') {
|
|
slot = &msx_slot_list[SLOT_FMPAC];
|
|
}
|
|
else {
|
|
slot = &msx_slot_list[SLOT_EMPTY];
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!st) {
|
|
switch (slot->mem_type) {
|
|
|
|
case MSX_MEM_HANDLER:
|
|
case MSX_MEM_ROM:
|
|
mem = machine.root_device().memregion("maincpu")->base() + option;
|
|
break;
|
|
case MSX_MEM_RAM:
|
|
mem = NULL;
|
|
break;
|
|
}
|
|
st = auto_alloc_clear (machine, slot_state);
|
|
memset (st, 0, sizeof (slot_state));
|
|
|
|
if (slot->init (machine, st, layout->slot_page, mem, size)) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
while (extent--) {
|
|
if (page > 3) {
|
|
logerror ("internal error: msx_slot_layout wrong, "
|
|
"page + extent > 3\n");
|
|
break;
|
|
}
|
|
state->m_all_state[prim][sec][page] = st;
|
|
page++;
|
|
}
|
|
break;
|
|
case MSX_LAYOUT_KANJI_ENTRY:
|
|
state->m_kanji_mem = machine.root_device().memregion("maincpu")->base() + layout->option;
|
|
break;
|
|
case MSX_LAYOUT_RAMIO_SET_BITS_ENTRY:
|
|
state->m_ramio_set_bits = (UINT8)layout->option;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void msx_state::msx_memory_reset ()
|
|
{
|
|
slot_state *st, *last_st = (slot_state*)NULL;
|
|
int prim, sec, page;
|
|
|
|
m_primary_slot = 0;
|
|
|
|
for (prim=0; prim<4; prim++)
|
|
{
|
|
m_secondary_slot[prim] = 0;
|
|
for (sec=0; sec<4; sec++)
|
|
{
|
|
for (page=0; page<4; page++)
|
|
{
|
|
st = m_all_state[prim][sec][page];
|
|
if (st && st != last_st)
|
|
msx_slot_list[st->m_type].reset (machine(), st);
|
|
last_st = st;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void msx_memory_set_carts (running_machine &machine)
|
|
{
|
|
msx_state *state = machine.driver_data<msx_state>();
|
|
const msx_slot_layout *layout;
|
|
int page;
|
|
|
|
if (!state->layout)
|
|
return;
|
|
|
|
for (layout = state->layout; layout->entry != MSX_LAYOUT_LAST; layout++)
|
|
{
|
|
if (layout->entry == MSX_LAYOUT_SLOT_ENTRY)
|
|
{
|
|
switch (layout->type)
|
|
{
|
|
case SLOT_CARTRIDGE1:
|
|
for (page=0; page<4; page++)
|
|
state->m_all_state[layout->slot_primary][layout->slot_secondary][page]
|
|
= state->m_cart_state[0];
|
|
break;
|
|
case SLOT_CARTRIDGE2:
|
|
for (page=0; page<4; page++)
|
|
state->m_all_state[layout->slot_primary][layout->slot_secondary][page]
|
|
= state->m_cart_state[1];
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void msx_state::msx_memory_map_page (UINT8 page)
|
|
{
|
|
int slot_primary;
|
|
int slot_secondary;
|
|
slot_state *st;
|
|
const msx_slot *slot;
|
|
|
|
slot_primary = (m_primary_slot >> (page * 2)) & 3;
|
|
slot_secondary = (m_secondary_slot[slot_primary] >> (page * 2)) & 3;
|
|
|
|
st = m_all_state[slot_primary][slot_secondary][page];
|
|
slot = st ? &msx_slot_list[st->m_type] : &msx_slot_list[SLOT_EMPTY];
|
|
m_state[page] = st;
|
|
m_slot[page] = slot;
|
|
|
|
if (VERBOSE)
|
|
logerror ("mapping %s in %d/%d/%d\n", slot->name, slot_primary, slot_secondary, page);
|
|
|
|
slot->map (machine(), st, page);
|
|
}
|
|
|
|
void msx_state::msx_memory_map_all ()
|
|
{
|
|
for (UINT8 i=0; i<4; i++)
|
|
msx_memory_map_page (i);
|
|
}
|
|
|
|
WRITE8_MEMBER( msx_state::msx_page0_w )
|
|
{
|
|
if ( offset == 0 )
|
|
{
|
|
m_superloadrunner_bank = data;
|
|
if (m_slot[2]->slot_type == SLOT_SUPERLOADRUNNER)
|
|
m_slot[2]->map (machine(), m_state[2], 2);
|
|
}
|
|
|
|
switch (m_slot[0]->mem_type)
|
|
{
|
|
case MSX_MEM_RAM:
|
|
m_ram_pages[0][offset] = data;
|
|
break;
|
|
case MSX_MEM_HANDLER:
|
|
m_slot[0]->write (machine(), m_state[0], offset, data);
|
|
}
|
|
}
|
|
|
|
WRITE8_MEMBER( msx_state::msx_page0_1_w )
|
|
{
|
|
msx_page0_w( space, 0x2000 + offset, data );
|
|
}
|
|
|
|
WRITE8_MEMBER( msx_state::msx_page1_w )
|
|
{
|
|
switch (m_slot[1]->mem_type)
|
|
{
|
|
case MSX_MEM_RAM:
|
|
m_ram_pages[1][offset] = data;
|
|
break;
|
|
case MSX_MEM_HANDLER:
|
|
m_slot[1]->write (machine(), m_state[1], 0x4000 + offset, data);
|
|
}
|
|
}
|
|
|
|
WRITE8_MEMBER( msx_state::msx_page1_1_w )
|
|
{
|
|
msx_page1_w( space, 0x2000 + offset, data );
|
|
}
|
|
|
|
WRITE8_MEMBER( msx_state::msx_page1_2_w )
|
|
{
|
|
msx_page1_w( space, 0x3ff8 + offset, data );
|
|
}
|
|
|
|
WRITE8_MEMBER( msx_state::msx_page2_w )
|
|
{
|
|
switch (m_slot[2]->mem_type)
|
|
{
|
|
case MSX_MEM_RAM:
|
|
m_ram_pages[2][offset] = data;
|
|
break;
|
|
case MSX_MEM_HANDLER:
|
|
m_slot[2]->write (machine(), m_state[2], 0x8000 + offset, data);
|
|
}
|
|
}
|
|
|
|
WRITE8_MEMBER( msx_state::msx_page2_1_w )
|
|
{
|
|
msx_page2_w( space, 0x1800 + offset, data );
|
|
}
|
|
|
|
WRITE8_MEMBER( msx_state::msx_page2_2_w )
|
|
{
|
|
msx_page2_w( space, 0x2000 + offset, data );
|
|
}
|
|
|
|
WRITE8_MEMBER( msx_state::msx_page2_3_w )
|
|
{
|
|
msx_page2_w( space, 0x3800 + offset, data );
|
|
}
|
|
|
|
WRITE8_MEMBER( msx_state::msx_page3_w )
|
|
{
|
|
switch (m_slot[3]->mem_type)
|
|
{
|
|
case MSX_MEM_RAM:
|
|
m_ram_pages[3][offset] = data;
|
|
break;
|
|
case MSX_MEM_HANDLER:
|
|
m_slot[3]->write (machine(), m_state[3], 0xc000 + offset, data);
|
|
}
|
|
}
|
|
|
|
WRITE8_MEMBER( msx_state::msx_page3_1_w )
|
|
{
|
|
msx_page3_w( space, 0x2000 + offset, data );
|
|
}
|
|
|
|
WRITE8_MEMBER( msx_state::msx_sec_slot_w )
|
|
{
|
|
int slot = m_primary_slot >> 6;
|
|
if (m_slot_expanded[slot])
|
|
{
|
|
if (VERBOSE)
|
|
logerror ("write to secondary slot %d select: %02x\n", slot, data);
|
|
|
|
m_secondary_slot[slot] = data;
|
|
msx_memory_map_all ();
|
|
}
|
|
else
|
|
msx_page3_w(space, 0x3fff, data);
|
|
}
|
|
|
|
READ8_MEMBER( msx_state::msx_sec_slot_r )
|
|
{
|
|
UINT8 result;
|
|
int slot = m_primary_slot >> 6;
|
|
|
|
if (m_slot_expanded[slot])
|
|
result = ~m_secondary_slot[slot];
|
|
else
|
|
result = m_top_page[0x1fff];
|
|
|
|
return result;
|
|
}
|
|
|
|
WRITE8_MEMBER( msx_state::msx_ram_mapper_w )
|
|
{
|
|
m_ram_mapper[offset] = data;
|
|
if (m_slot[offset]->slot_type == SLOT_RAM_MM)
|
|
m_slot[offset]->map (machine(), m_state[offset], offset);
|
|
}
|
|
|
|
READ8_MEMBER( msx_state::msx_ram_mapper_r )
|
|
{
|
|
return m_ram_mapper[offset] | m_ramio_set_bits;
|
|
}
|
|
|
|
WRITE8_MEMBER( msx_state::msx_90in1_w )
|
|
{
|
|
m_korean90in1_bank = data;
|
|
if (m_slot[1]->slot_type == SLOT_KOREAN_90IN1)
|
|
m_slot[1]->map (machine(), m_state[1], 1);
|
|
|
|
if (m_slot[2]->slot_type == SLOT_KOREAN_90IN1)
|
|
m_slot[2]->map (machine(), m_state[2], 2);
|
|
}
|
|
|
|
READ8_MEMBER( msx_state::msx_kanji_r )
|
|
{
|
|
UINT8 result = 0xff;
|
|
|
|
if (offset && m_kanji_mem)
|
|
{
|
|
int latch = m_kanji_latch;
|
|
result = m_kanji_mem[latch++];
|
|
|
|
m_kanji_latch &= ~0x1f;
|
|
m_kanji_latch |= latch & 0x1f;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
WRITE8_MEMBER( msx_state::msx_kanji_w )
|
|
{
|
|
if (offset)
|
|
m_kanji_latch = (m_kanji_latch & 0x007E0) | ((data & 0x3f) << 11);
|
|
else
|
|
m_kanji_latch = (m_kanji_latch & 0x1f800) | ((data & 0x3f) << 5);
|
|
}
|