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i386: split 386sx to separate cpu (nw)

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(mess) at: download more ram (nw)
This commit is contained in:
cracyc 2013-03-12 17:19:43 +00:00
parent 6aa889372e
commit a3e2ee9604
4 changed files with 37 additions and 17 deletions
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14
src/emu/cpu/i386/i386.c
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@ -3601,6 +3601,19 @@ CPU_GET_INFO( i386 )
}
}
CPU_GET_INFO( i386SX )
{
switch (state)
{
/* --- the following bits of info are returned as 64-bit signed integers --- */
case CPUINFO_INT_DATABUS_WIDTH + AS_PROGRAM: info->i = 16; break;
case CPUINFO_INT_ADDRBUS_WIDTH + AS_PROGRAM: info->i = 24; break;
case CPUINFO_INT_DATABUS_WIDTH + AS_IO: info->i = 16; break;
case CPUINFO_INT_ADDRBUS_WIDTH + AS_IO: info->i = 16; break;
default: CPU_GET_INFO_CALL(i386); break;
}
}
/*****************************************************************************/
/* Intel 486 */
@ -4465,6 +4478,7 @@ CPU_GET_INFO( pentium4 )
DEFINE_LEGACY_CPU_DEVICE(I386, i386);
DEFINE_LEGACY_CPU_DEVICE(I386SX, i386SX);
DEFINE_LEGACY_CPU_DEVICE(I486, i486);
DEFINE_LEGACY_CPU_DEVICE(PENTIUM, pentium);
DEFINE_LEGACY_CPU_DEVICE(MEDIAGX, mediagx);

1
src/emu/cpu/i386/i386.h
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@ -10,6 +10,7 @@
#undef i386
DECLARE_LEGACY_CPU_DEVICE(I386, i386);
DECLARE_LEGACY_CPU_DEVICE(I386SX, i386SX);
DECLARE_LEGACY_CPU_DEVICE(I486, i486);
DECLARE_LEGACY_CPU_DEVICE(PENTIUM, pentium);
DECLARE_LEGACY_CPU_DEVICE(MEDIAGX, mediagx);

38
src/mess/drivers/at.c
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@ -34,7 +34,6 @@ static ADDRESS_MAP_START( neat_map, AS_PROGRAM, 16, at_state )
ADDRESS_MAP_END
static ADDRESS_MAP_START( at386_map, AS_PROGRAM, 32, at_state )
ADDRESS_MAP_GLOBAL_MASK(0x00ffffff)
AM_RANGE(0x00000000, 0x0009ffff) AM_RAMBANK("bank10")
AM_RANGE(0x000a0000, 0x000bffff) AM_NOP
AM_RANGE(0x000c0000, 0x000c7fff) AM_ROM
@ -42,7 +41,7 @@ static ADDRESS_MAP_START( at386_map, AS_PROGRAM, 32, at_state )
AM_RANGE(0x000d0000, 0x000effff) AM_ROM
AM_RANGE(0x000f0000, 0x000fffff) AM_ROM
AM_RANGE(0x00800000, 0x00800bff) AM_RAM AM_SHARE("nvram")
AM_RANGE(0x00ff0000, 0x00ffffff) AM_ROM AM_REGION("maincpu", 0x0f0000)
AM_RANGE(0xffff0000, 0xffffffff) AM_ROM AM_REGION("maincpu", 0x0f0000)
ADDRESS_MAP_END
// memory is mostly handled by the chipset
@ -591,7 +590,7 @@ static MACHINE_CONFIG_START( at386, at_state )
/* internal ram */
MCFG_RAM_ADD(RAM_TAG)
MCFG_RAM_DEFAULT_SIZE("1664K")
MCFG_RAM_EXTRA_OPTIONS("2M,4M,8M,15M,16M,32M,64M")
MCFG_RAM_EXTRA_OPTIONS("2M,4M,8M,15M,16M,32M,64M,128M,256M")
MACHINE_CONFIG_END
@ -664,7 +663,7 @@ static MACHINE_CONFIG_START( at586, at586_state )
MCFG_RAM_ADD(RAM_TAG)
MCFG_RAM_DEFAULT_SIZE("4M")
MCFG_RAM_EXTRA_OPTIONS("1M,2M,8M,16M,32M,64M")
MCFG_RAM_EXTRA_OPTIONS("1M,2M,8M,16M,32M,64M,128M,256M")
MCFG_PCI_BUS_ADD("pcibus", 0)
MCFG_PCI_BUS_DEVICE("pcibus:0", pci_devices, "i82439tx", NULL, &tx_config, 0, true)
@ -697,10 +696,10 @@ static MACHINE_CONFIG_START( at586x3, at586_state )
MCFG_ISA16_SLOT_ADD(":pcibus:1:i82371sb:isabus","isa5", pc_isa16_cards, "ide_cd", ide_2nd, false) //2nd-ary IDE
MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED( c386sx16, at386 )
MCFG_CPU_REPLACE("maincpu", I386, 16000000) /* 386SX */
MCFG_CPU_PROGRAM_MAP(at386_map)
MCFG_CPU_IO_MAP(at386_io)
static MACHINE_CONFIG_DERIVED( at386sx, atvga )
MCFG_CPU_REPLACE("maincpu", I386SX, 16000000) /* 386SX */
MCFG_CPU_PROGRAM_MAP(at16_map)
MCFG_CPU_IO_MAP(at16_io)
MACHINE_CONFIG_END
static MACHINE_CONFIG_DERIVED( megapc, at386 )
@ -1127,6 +1126,14 @@ ROM_START( neat )
ROM_REGION(0x50000, "gfx2", ROMREGION_ERASE00)
ROM_END
ROM_START( at386sx )
ROM_REGION(0x1000000,"maincpu", 0)
ROM_SYSTEM_BIOS(0, "neatsx", "NEATsx 386sx")
ROMX_LOAD("012l-u25.bin", 0xf0000, 0x8000, CRC(4AB1862D) SHA1(D4E8D0FF43731270478CA7671A129080FF350A4F),ROM_SKIP(1) | ROM_BIOS(1) )
//ROM_RELOAD(0xff0000,0x8000)
ROMX_LOAD("012h-u24.bin", 0xf0001, 0x8000, CRC(17472521) SHA1(7588C148FE53D9DC4CB2D0AB6E0FD51A39BB5D1A),ROM_SKIP(1) | ROM_BIOS(1) )
//ROM_RELOAD(0xff0000,0x8000)
ROM_END
ROM_START( at386 )
ROM_REGION(0x1000000,"maincpu", 0)
@ -1135,13 +1142,9 @@ ROM_START( at386 )
ROM_SYSTEM_BIOS(1, "at386", "unknown 386") // This dump possibly comes from a MITAC INC 386 board, given that the original driver had it as manufacturer
ROMX_LOAD("at386.bin", 0xf0000, 0x10000, CRC(3df9732a) SHA1(def71567dee373dc67063f204ef44ffab9453ead), ROM_BIOS(2))
//ROM_RELOAD(0xff0000,0x10000)
ROM_SYSTEM_BIOS(2, "neatsx", "NEATsx 386sx")
ROMX_LOAD("012l-u25.bin", 0xf0000, 0x8000, CRC(4AB1862D) SHA1(D4E8D0FF43731270478CA7671A129080FF350A4F),ROM_SKIP(1) | ROM_BIOS(3) )
//ROM_RELOAD(0xff0000,0x8000)
ROMX_LOAD("012h-u24.bin", 0xf0001, 0x8000, CRC(17472521) SHA1(7588C148FE53D9DC4CB2D0AB6E0FD51A39BB5D1A),ROM_SKIP(1) | ROM_BIOS(3) )
//ROM_RELOAD(0xff0000,0x8000)
ROM_SYSTEM_BIOS(3, "amicg", "AMI CG")
ROMX_LOAD( "amicg.1", 0xf0000, 0x10000,CRC(8408965a) SHA1(9893d3ac851e01b06a68a67d3721df36ca2c96f5), ROM_BIOS(4) )
ROM_SYSTEM_BIOS(2, "amicg", "AMI CG")
ROMX_LOAD( "amicg.1", 0xf0000, 0x10000,CRC(8408965a) SHA1(9893d3ac851e01b06a68a67d3721df36ca2c96f5), ROM_BIOS(3) )
ROM_END
@ -1454,6 +1457,7 @@ COMP ( 198?, i8580111, ibm5170, 0, at386, atvga, at_state, atvga,
COMP ( 1987, at, ibm5170, 0, ibm5162, atcga, at_state, atcga, "<generic>", "PC/AT (CGA, MF2 Keyboard)", GAME_NOT_WORKING )
COMP ( 1987, atvga, ibm5170, 0, atvga, atvga, at_state, atvga, "<generic>", "PC/AT (VGA, MF2 Keyboard)" , GAME_NOT_WORKING )
COMP ( 1988, at386, ibm5170, 0, at386, atvga, at_state, atvga, "<generic>", "PC/AT 386 (VGA, MF2 Keyboard)", GAME_NOT_WORKING )
COMP ( 1988, at386sx, ibm5170, 0, at386sx, atvga, at_state, atvga, "<generic>", "PC/AT 386SX (VGA, MF2 Keyboard)", GAME_NOT_WORKING )
COMP ( 1990, at486, ibm5170, 0, at486, atvga, at_state, atvga, "<generic>", "PC/AT 486 (VGA, MF2 Keyboard)", GAME_NOT_WORKING )
COMP ( 1990, at586, ibm5170, 0, at586, atvga, driver_device, 0, "<generic>", "PC/AT 586 (PIIX4)", GAME_NOT_WORKING )
COMP ( 1990, at586x3, ibm5170, 0, at586x3, atvga, driver_device, 0, "<generic>", "PC/AT 586 (PIIX3)", GAME_NOT_WORKING )
@ -1483,9 +1487,9 @@ COMP ( 1989, xb42664, ibm5170, 0, at386, atvga, at_state, atvga,
COMP ( 1990, xb42664a, ibm5170, 0, at386, atvga, at_state, atvga, "Apricot", "Apricot XEN-S (Venus II Motherboard 386)" , GAME_NOT_WORKING )
COMP ( 1993, apxena1, ibm5170, 0, at486, atvga, at_state, atvga, "Apricot", "Apricot XEN PC (A1 Motherboard)", GAME_NOT_WORKING )
COMP ( 1993, apxenp2, ibm5170, 0, at486, atvga, at_state, atvga, "Apricot", "Apricot XEN PC (P2 Motherboard)", GAME_NOT_WORKING )
COMP ( 1990, c386sx16, ibm5170, 0, c386sx16, atvga, at_state, atvga, "Commodore Business Machines", "Commodore 386SX-16", GAME_NOT_WORKING )
COMP ( 1990, c386sx16, ibm5170, 0, at386sx, atvga, at_state, atvga, "Commodore Business Machines", "Commodore 386SX-16", GAME_NOT_WORKING )
COMP ( 1988, cmdpc30, ibm5170, 0, ibm5162, atcga, at_state, atcga, "Commodore Business Machines", "PC 30 III", GAME_NOT_WORKING )
COMP ( 1995, ficpio2, ibm5170, 0, at486, atvga, at_state, atvga, "FIC", "486-PIO-2", GAME_NOT_WORKING )
COMP ( 1997, ficvt503, ibm5170, 0, at586, atvga, driver_device, 0, "FIC", "VT-503", GAME_NOT_WORKING )
COMP ( 1985, k286i, ibm5170, 0, k286i, atcga, at_state, atcga, "Kaypro", "286i", GAME_NOT_WORKING )
COMP ( 1991, t2000sx, ibm5170, 0, c386sx16, atvga, at_state, atvga, "Toshiba", "T2000SX", GAME_NOT_WORKING )
COMP ( 1991, t2000sx, ibm5170, 0, at386sx, atvga, at_state, atvga, "Toshiba", "T2000SX", GAME_NOT_WORKING )

1
src/mess/mess.lst
View File

@ -781,6 +781,7 @@ at // 1987 AMI Bios and Diagnostics
atvga // 19?? AT VGA
neat // 1989 New Enhanced AT chipset, AMI BIOS
at386 // 19?? IBM AT 386
at386sx
at486 // 19?? IBM AT 486
ct486 // 1993? 486 with CS4031
ficpio2 // 1995 FIC 486-PIO-2