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megapc: added alternate MegaPC Plus set which uses a WINBUS chipset [Chris Hardy, Barry Rodewald]

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This commit is contained in:
mahlemiut 2014-05-13 10:36:22 +00:00
parent 3e4b39252c
commit 22373a3aa6
3 changed files with 61 additions and 4 deletions
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59
src/mess/drivers/at.c
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@ -208,6 +208,19 @@ DRIVER_INIT_MEMBER(megapc_state, megapcpl)
ROM[0xffea0] = 0x20; // to correct checksum
}
DRIVER_INIT_MEMBER(at_state, megapcpla)
{
UINT8* ROM = memregion("maincpu")->base();
init_at_common();
ROM[0xf3c2a] = 0x45; // hack to fix keyboard. To be removed when the keyboard controller from the MegaPC is dumped
ROM[0xfaf37] = 0x45;
ROM[0xfcf1b] = 0x54; // this will allow the keyboard to work during the POST memory test
ROM[0xffffe] = 0x1c;
ROM[0xfffff] = 0x41; // to correct checksum
}
READ16_MEMBER( megapc_state::wd7600_ior )
{
if (offset < 4)
@ -840,6 +853,40 @@ static MACHINE_CONFIG_DERIVED( megapcpl, megapc )
MCFG_CPU_IRQ_ACKNOWLEDGE_DEVICE("wd7600", wd7600_device, intack_cb)
MACHINE_CONFIG_END
static MACHINE_CONFIG_START( megapcpla, at_state )
MCFG_CPU_ADD("maincpu", I486, 66000000 / 2) // 486SLC
MCFG_CPU_PROGRAM_MAP(at386_map)
MCFG_CPU_IO_MAP(at386_io)
MCFG_CPU_IRQ_ACKNOWLEDGE_DEVICE("pic8259_master", pic8259_device, inta_cb)
MCFG_FRAGMENT_ADD( at_motherboard )
MCFG_NVRAM_ADD_0FILL("nvram")
// on board devices
MCFG_ISA16_SLOT_ADD("isabus","board1", pc_isa16_cards, "fdcsmc", true)
MCFG_ISA16_SLOT_ADD("isabus","board2", pc_isa16_cards, "comat", true)
MCFG_ISA16_SLOT_ADD("isabus","board3", pc_isa16_cards, "ide", true)
MCFG_ISA16_SLOT_ADD("isabus","board4", pc_isa16_cards, "lpt", true)
// ISA cards
MCFG_ISA16_SLOT_ADD("isabus","isa1", pc_isa16_cards, "svga_dm", false) // closest to the CL-GD5420
MCFG_ISA16_SLOT_ADD("isabus","isa2", pc_isa16_cards, NULL, false)
MCFG_ISA16_SLOT_ADD("isabus","isa3", pc_isa16_cards, NULL, false)
MCFG_ISA16_SLOT_ADD("isabus","isa4", pc_isa16_cards, NULL, false)
MCFG_ISA16_SLOT_ADD("isabus","isa5", pc_isa16_cards, NULL, false)
MCFG_PC_KBDC_SLOT_ADD("pc_kbdc", "kbd", pc_at_keyboards, STR_KBD_MICROSOFT_NATURAL)
/* internal ram */
MCFG_RAM_ADD(RAM_TAG)
MCFG_RAM_DEFAULT_SIZE("4M")
MCFG_RAM_EXTRA_OPTIONS("2M,8M,15M,16M,32M,64M,128M,256M")
/* software lists */
MCFG_SOFTWARE_LIST_ADD("pc_disk_list","ibm5150")
MCFG_SOFTWARE_LIST_ADD("xt_disk_list","ibm5160_flop")
MCFG_SOFTWARE_LIST_ADD("at_disk_list","ibm5170")
MCFG_SOFTWARE_LIST_ADD("at_cdrom_list","ibm5170_cdrom")
MCFG_SOFTWARE_LIST_ADD("disk_list","megapc")
MACHINE_CONFIG_END
#if 0
@ -1513,6 +1560,13 @@ ROM_START( megapcpl )
ROM_LOAD16_BYTE( "486slc.u19", 0xe0001, 0x10000, CRC(6fb7e3e9) SHA1(c439cb5a0d83176ceb2a3555e295dc1f84d85103))
ROM_END
ROM_START( megapcpla )
ROM_REGION(0x40000, "isa", ROMREGION_ERASEFF)
ROM_REGION(0x100000, "maincpu", 0)
ROM_LOAD( "megapc_bios.bin", 0xc0000, 0x10000, CRC(b84938a2) SHA1(cecab72a96993db4f7c648c229b4211a8c53a380))
ROM_CONTINUE(0xf0000, 0x10000)
ROM_END
ROM_START( t2000sx )
ROM_REGION( 0x1000000, "maincpu", 0 )
ROM_LOAD( "014d.ic9", 0xe0000, 0x20000, CRC(e9010b02) SHA1(75688fc8e222640fa22bcc90343c6966fe0da87f))
@ -1563,8 +1617,9 @@ COMP ( 1990, at586, ibm5170, 0, at586, atvga, at586_state, at586,
COMP ( 1990, at586x3, ibm5170, 0, at586x3, atvga, at586_state, at586, "<generic>", "PC/AT 586 (PIIX3)", GAME_NOT_WORKING )
COMP ( 1989, neat, ibm5170, 0, neat, atvga, at_state, atvga, "<generic>", "NEAT (VGA, MF2 Keyboard)", GAME_NOT_WORKING )
COMP ( 1993, ec1849, ibm5170, 0, ec1849, atcga, at_state, atcga, "<unknown>", "EC-1849", GAME_NOT_WORKING )
COMP ( 1993, megapc, 0, 0, megapc, 0, megapc_state, megapc, "Amstrad plc", "MegaPC", GAME_NOT_WORKING )
COMP ( 199?, megapcpl, megapc, 0, megapcpl, 0, megapc_state, megapcpl,"Amstrad plc", "MegaPC Plus", GAME_NOT_WORKING )
COMP ( 1993, megapc, 0, 0, megapc, 0, megapc_state,megapc, "Amstrad plc", "MegaPC", GAME_NOT_WORKING )
COMP ( 199?, megapcpl, megapc, 0, megapcpl, 0, megapc_state,megapcpl, "Amstrad plc", "MegaPC Plus", GAME_NOT_WORKING )
COMP ( 199?, megapcpla, megapc, 0, megapcpla, 0, at_state, megapcpla,"Amstrad plc", "MegaPC Plus (WINBUS chipset)", GAME_NOT_WORKING )
COMP ( 1989, pc2386, ibm5170, 0, at386, atvga, at_state, atvga, "Amstrad plc", "Amstrad PC2386", GAME_NOT_WORKING )
COMP ( 1991, aprfte, ibm5170, 0, at486, atvga, at_state, atvga, "Apricot", "Apricot FT//ex 486 (J3 Motherboard)", GAME_NOT_WORKING )
COMP ( 1991, ftsserv, ibm5170, 0, at486, atvga, at_state, atvga, "Apricot", "Apricot FTs (Scorpion)", GAME_NOT_WORKING )

1
src/mess/includes/at.h
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@ -155,6 +155,7 @@ public:
DECLARE_DRIVER_INIT(atcga);
DECLARE_DRIVER_INIT(atvga);
DECLARE_DRIVER_INIT(megapcpla);
DECLARE_MACHINE_START(at);
DECLARE_MACHINE_RESET(at);
void pc_set_dma_channel(int channel, int state);

3
src/mess/mess.lst
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@ -844,8 +844,9 @@ apxena1 // 1993 Apricot XEN PC (A1 Motherboard)
apxenp2 // 1993 Apricot XEN PC (P2 Motherboard)
aprpand
aprfte
megapc
megapc // 1992 Amstrad plc
megapcpl
megapcpla // AMI BIOS version with Winbond WINBUS chipset
ec1849
t2000sx
k286i // 1985 Kaypro 286i