PC/AT 486 (VGA, MF2 Keyboard)
PC/AT 486 (VGA, MF2 Keyboard)

nosnap
Info
   
Setname:  at486   
Year: 1990
Manufacturer: <generic>
Status: preliminary  notworks
Type: Buisness Computer / Terminal
Parent: IBM PC/AT 5170
Emulation info
   
Overall emulation:  preliminary   
Color emulation:  good  
Sound emulation:  good  
Graphics emulation:  good  
Savestates:  unsupported   

Tech info
 Base hardware: (available in all slot configurations)
Chips
I486 ("maincpu")cpu 25000000 Hz
AM9517A ("dma8237_1")cpu 4772727 Hz
AM9517A ("dma8237_2")cpu 4772727 Hz
I8042 ("keybc:at_keybc")cpu 12000000 Hz
Speaker ("mono")audio
Filtered 1-bit DAC ("speaker")audio
Screens
Screen parameters for this system
depend on the chosen expansions
Media devices
Media devices for this system
depend on the chosen expansions
BIOS options
at486 PC/AT 486
mg48602 UMC MG-48602
ft01232 Free Tech 01-232
ficy2k FIC 486 3.276GN1
ficgac2 FIC 486-GAC-2
ficgacv FIC 486-GAC-V 3.27GN1
ficgiovp FIC 486-GIO-VP 3.15GN
ficgiovt FIC 486-GIO-VT 3.06G
ficgiovt2_326 FIC 486-GIO-VT2 3.26G
ficgiovt2_3276 FIC 486-GIO-VT2 3.276
ficgvt2 FIC 486-GVT-2 3.07G
ficgpak2 FIC 486-PAK-2 5.15S
ficpio3g7 FIC 486-PIO-3 1.15G705
ficpio3g1 FIC 486-PIO-3 1.15G105
ficpos FIC 486-POS
ficpvt FIC 486-PVT 5.15
ficpvtio FIC 486-PVT-IO 5.162W2
ficvipio426 FIC 486-VIP-IO 4.26GN2
ficvipio427 FIC 486-VIP-IO 4.27GN2A
ficvipio2 FIC 486-VIP-IO2
qdi QDI PX486DX33/50P3
RAM options
1.63M 1703936
2M 2097152
4M 4194304
8M 8388608
15M 15728640
16M 16777216
32M 33554432
64M 67108864
128M 134217728
256M 268435456
Software lists
ibm5150original
ibm5160_floporiginal
ibm5170original
ibm5170_cdromoriginal

 Optional hardware: (available with specific slot configurations)

 Configure the slot options for at486:
 Slot Value
 board1:fdcsmc:fdc:0 
 board1:fdcsmc:fdc:1 
 board2:comat:serport0 
 board2:comat:serport1 
 board3:ide:ide:0 
 board3:ide:ide:1 
 board4:lpt:lpt:centronics 
 isa1 
 isa2 
 isa3 
 isa4 
 isa5 
 kbd 
 


Show detailed info about 'DipSwitches' of this system
DipSwitches

NameValue
VGA 4 Off
 On
VGA 3 Off
 On
VGA 2 Off
 On
VGA 1 Off
 On
Floppy installed No
 Yes
80387 installed No
 Yes
RAM banks 1 - 16 64 256K
 2 - 32 128 512K
 3 - 48 192 576K
 4 - 64 256 640K
Graphics adapter EGA/VGA
 Color 40x25
 Color 80x25
 Monochrome
Number of floppy drives 1
 2
 3
 4
IDE Configuration Primary
 Secondary
Base address 0x378
 0x278


Show detailed info about 'Slot Options' of this system
Slot options

NameValueCompatible device(s)
board1:fdcsmc:fdc:0 35ddfloppy_35_dd
 35hd floppy_35_hd
 525ddfloppy_525_dd
 525hdfloppy_525_hd
board1:fdcsmc:fdc:1 35ddfloppy_35_dd
 35hd floppy_35_hd
 525ddfloppy_525_dd
 525hdfloppy_525_hd
board2:comat:serport0 microsoft_mouse microsoft_mouse
 msystems_mousemouse_systems_mouse
 null_modemnull_modem
 terminalserial_terminal
board2:comat:serport1 microsoft_mousemicrosoft_mouse
 msystems_mousemouse_systems_mouse
 null_modemnull_modem
 terminalserial_terminal
board3:ide:ide:0 cdromcdrom
 hdd hdd
board3:ide:ide:1 cdromcdrom
 hddhdd
board4:lpt:lpt:centronics ap2000ap2000
 covoxcovox
 covox_stereocovox_stereo
 ex800ex800
 lx800lx800
 lx810llx810l
 pl80comx_pl80
 printer centronics_printer
isa1 3c503el2_3c503
 3c5053c505
 adlibisa_adlib
 aha1542aha1542
 cgacga
 clgd542xclgd542x
 comisa_com
 comatisa_com_at
 dectalkdectalk_isa
 dms3d2kpdms3d2kp
 egaega
 fdcisa8_fdc_at
 fdc344fdc344
 fdcmagfdcmag
 fdcsmcisa8_fdc_smc
 gblasterisa_gblaster
 gfxultragfxultra
 gfxultrapgfxultrp
 gusisa_gus
 hdchdc
 herculesisa_hercules
 ibm_mfcibm_mfc
 ideisa_ide
 lptisa_lpt
 mach64mach64
 mdaisa_ibm_mda
 mpu401isa_mpu401
 ne1000ne1000
 ne2000ne2000
 num9revnumber_9_rev
 pdsisa_pds
 s3virges3virge
 s3virgedxs3virgedx
 sb16_llesb16
 sblaster1_0isa_sblaster1_0
 sblaster1_5isa_sblaster1_5
 sblaster_16isa_sblaster_16
 side116side116
 ssi2001ssi2001
 stereo_fxstereo_fx
 svga_dmdm_clgd5430
 svga_et4k et4000
 svga_s3s3_764
 tgui9680tgui9680
 vgaibm_vga
 wyse700wyse700
isa2 3c503el2_3c503
 3c5053c505
 adlibisa_adlib
 aha1542aha1542
 cgacga
 clgd542xclgd542x
 comisa_com
 comatisa_com_at
 dectalkdectalk_isa
 dms3d2kpdms3d2kp
 egaega
 fdcisa8_fdc_at
 fdc344fdc344
 fdcmagfdcmag
 fdcsmcisa8_fdc_smc
 gblasterisa_gblaster
 gfxultragfxultra
 gfxultrapgfxultrp
 gusisa_gus
 hdchdc
 herculesisa_hercules
 ibm_mfcibm_mfc
 ideisa_ide
 lptisa_lpt
 mach64mach64
 mdaisa_ibm_mda
 mpu401isa_mpu401
 ne1000ne1000
 ne2000ne2000
 num9revnumber_9_rev
 pdsisa_pds
 s3virges3virge
 s3virgedxs3virgedx
 sb16_llesb16
 sblaster1_0isa_sblaster1_0
 sblaster1_5isa_sblaster1_5
 sblaster_16isa_sblaster_16
 side116side116
 ssi2001ssi2001
 stereo_fxstereo_fx
 svga_dmdm_clgd5430
 svga_et4ket4000
 svga_s3s3_764
 tgui9680tgui9680
 vgaibm_vga
 wyse700wyse700
isa3 3c503el2_3c503
 3c5053c505
 adlibisa_adlib
 aha1542aha1542
 cgacga
 clgd542xclgd542x
 comisa_com
 comatisa_com_at
 dectalkdectalk_isa
 dms3d2kpdms3d2kp
 egaega
 fdcisa8_fdc_at
 fdc344fdc344
 fdcmagfdcmag
 fdcsmcisa8_fdc_smc
 gblasterisa_gblaster
 gfxultragfxultra
 gfxultrapgfxultrp
 gusisa_gus
 hdchdc
 herculesisa_hercules
 ibm_mfcibm_mfc
 ideisa_ide
 lptisa_lpt
 mach64mach64
 mdaisa_ibm_mda
 mpu401isa_mpu401
 ne1000ne1000
 ne2000ne2000
 num9revnumber_9_rev
 pdsisa_pds
 s3virges3virge
 s3virgedxs3virgedx
 sb16_llesb16
 sblaster1_0isa_sblaster1_0
 sblaster1_5isa_sblaster1_5
 sblaster_16isa_sblaster_16
 side116side116
 ssi2001ssi2001
 stereo_fxstereo_fx
 svga_dmdm_clgd5430
 svga_et4ket4000
 svga_s3s3_764
 tgui9680tgui9680
 vgaibm_vga
 wyse700wyse700
isa4 3c503el2_3c503
 3c5053c505
 adlibisa_adlib
 aha1542aha1542
 cgacga
 clgd542xclgd542x
 comisa_com
 comatisa_com_at
 dectalkdectalk_isa
 dms3d2kpdms3d2kp
 egaega
 fdcisa8_fdc_at
 fdc344fdc344
 fdcmagfdcmag
 fdcsmcisa8_fdc_smc
 gblasterisa_gblaster
 gfxultragfxultra
 gfxultrapgfxultrp
 gusisa_gus
 hdchdc
 herculesisa_hercules
 ibm_mfcibm_mfc
 ideisa_ide
 lptisa_lpt
 mach64mach64
 mdaisa_ibm_mda
 mpu401isa_mpu401
 ne1000ne1000
 ne2000ne2000
 num9revnumber_9_rev
 pdsisa_pds
 s3virges3virge
 s3virgedxs3virgedx
 sb16_llesb16
 sblaster1_0isa_sblaster1_0
 sblaster1_5isa_sblaster1_5
 sblaster_16isa_sblaster_16
 side116side116
 ssi2001ssi2001
 stereo_fxstereo_fx
 svga_dmdm_clgd5430
 svga_et4ket4000
 svga_s3s3_764
 tgui9680tgui9680
 vgaibm_vga
 wyse700wyse700
isa5 3c503el2_3c503
 3c5053c505
 adlibisa_adlib
 aha1542aha1542
 cgacga
 clgd542xclgd542x
 comisa_com
 comatisa_com_at
 dectalkdectalk_isa
 dms3d2kpdms3d2kp
 egaega
 fdcisa8_fdc_at
 fdc344fdc344
 fdcmagfdcmag
 fdcsmcisa8_fdc_smc
 gblasterisa_gblaster
 gfxultragfxultra
 gfxultrapgfxultrp
 gusisa_gus
 hdchdc
 herculesisa_hercules
 ibm_mfcibm_mfc
 ideisa_ide
 lptisa_lpt
 mach64mach64
 mdaisa_ibm_mda
 mpu401isa_mpu401
 ne1000ne1000
 ne2000ne2000
 num9revnumber_9_rev
 pdsisa_pds
 s3virges3virge
 s3virgedxs3virgedx
 sb16_llesb16
 sblaster1_0isa_sblaster1_0
 sblaster1_5isa_sblaster1_5
 sblaster_16isa_sblaster_16
 side116side116
 ssi2001ssi2001
 stereo_fxstereo_fx
 svga_dmdm_clgd5430
 svga_et4ket4000
 svga_s3s3_764
 tgui9680tgui9680
 vgaibm_vga
 wyse700wyse700
kbd 3270pckb_3270pc
 keytronc_pc3270keytronic_pc3270
 ms_naturl ms_natural
 pcatkb_pcat84

Romset info
ROM NameSizeCRC32SHA1Dump StateBIOS option
at486.bin65536 3121461651b41fa44d92151025fc9ad06e518e906935e689goodat486
att409be.bin131072 c58e017b14c19e720ce62eb2afe28a70f4e4ebafab0f9e77goodficgac2
327gn1.awd131072 017614d42228c28f21a7e78033d24319449297936465b164goodficgacv
giovp315.rom65536 e102c3f5f15a7e9311cc17afe86da0b369607768b030ddecgoodficgiovp
306gcd00.awd65536 75f3ded4999d4b58204e0b0f33262d0613c855b528bf9597goodficgiovt
326g1c00.awd65536 2e729ab5b713f97fa0e0b62856dab917f417f5b21020b354goodficgiovt2_326
32760000.bin65536 ad179128595f67ba4a1c8eb5e118d75bf657fff3803dcf4fgoodficgiovt2_3276
515sbd8a.awd131072 778247e107d8f0f2464abf507be1e8dfa06cd88737782411goodficgpak2
3073.bin65536 a6723863ee93a2f1ec84a3d67e267d0a490029f9165f1533goodficgvt2
115g105.awd131072 b327eb839e1ff53e07ca035d8d43951bac345fec7131678dgoodficpio3g1
115g705.awd131072 ddb1544ad165c9ecdc9397789abddfe0fef69fdf954fa41bgoodficpio3g7
116di6b7.bin131072 d1d846162f2b27ce100cf784260d8e155b48db8cfbc63285goodficpos
5150eef3.awd131072 eb35785d1e601bc8da73f22f11effe9cdf5a84d52576142bgoodficpvt
5162cf37.awd131072 378d813daa674eff5b972b31924941534c3c988f6f78dc93goodficpvtio
1164g701.awd131072 7b76268384debce7239c8b1978246688ae538f7c4f519d13goodficvipio2
426gn2.awd131072 5f472aa99160abefae32b450e973651c052657b4becc72bagoodficvipio426
427gn2a.awd131072 035ad56d0086db3eff711fc710b30e7f422fc5b4ab8d47aagoodficvipio427
3276gn1.bin131072 d4ff0cc4567b6bdbc9bff306c8c955f275e01ae4c45fd5f2goodficy2k
ft01232.bin65536 30efaf92665c8ef05ca052dcc06bb473c9539546bfef1e86goodft01232
mg48602.bin65536 45797823a5fab258aecabde615e1e97af5911d6cf9938c11goodmg48602
qdi_px486.u2365536 c80ecfb634cc9ef68ff719cd0771297bf184efa83a805f3egoodqdi
Sysinfo



Features


* CPU: Intel 80286 6 MHz
* RAM: 512 KB (up to 3 MB)
* ROM: 64 kb
* Text Modes: 80 x 24 / 40 x 24
* Graphic Modes: 640 x 350 [EGA mode]
* Colors: 64
* Sound: Beeper
* I/O Ports: 8 internal slots (six 16 bit ISA and two 8 bit ISA), RS232c, Centronics
* Keyboard: Full stroke keyboard with numeric keypad and function keys
* Built In Media: one 5.25" disk-drive, various Hard disk drives, from 20 MB
* OS: MS DOS
* Built In Language: Microsoft BASIC interpreter


Known Issues


The driver is currently under heavy rewrite. A preliminary implementation of EGA shows some result.


History and Trivia


The IBM PC AT was the successor of the PC and the XT. IBM added a lot of new features: they abandoned the old Intel 8086 to the Intel 80286, so the PC AT used new 16 bit expansion slots.

The PC AT had a new version of the Microsoft OS: MS-DOS 3.0 which could manage the new 5.25" floppy disk format (1.2 MB), the new hard disk capacities (20 MB and more) and allowed file sharing. It had a new keyboard too (the same we use now, more or less) with cursor keys and a key that could lock it.

Two models were launched: the PC-AT model 1 (256 KB RAM, two floppy disk units and a color screen) and the PC-AT Model 2 (512 KB RAM, one floppy disk unit, one hard disk and a color screen).

This computer was revolutionary, but it was the last time IBM imposed a standard to the PC clone industry. The next year, the first PC based on a 80386 was made by Compaq and IBM failed to impose the PS/2 standard in 1986.

(info from old-computers.com)


Links


* PC / AT at old-computers.com -- http://old-computers.com/museum/computer.asp?c=185


Other Emulators


* Bochs -- http://bochs.sourceforge.net/
* Virtual PC for Linux, Mac, NT (commercial) -- http://www.microsoft.com/windows/products/winfamily/virtualpc/default.mspx



Edit the History info for this game.

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