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Euro XT: BIOS revision, several: XTA harddisk info (#6529)

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* europc.cpp: Euro XT BIOS v1.04 and comments

* europc.cpp: comments

* IBM PS/1, PS/2, Tandy 1000 and Commodore PC harddisk information
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rfka01 2020-04-08 22:13:05 +02:00 committed by GitHub
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5 changed files with 25 additions and 9 deletions
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4
src/mame/drivers/at.cpp
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@ -1065,6 +1065,10 @@ ROM_START( ibm5162 ) //MB p/n 62x1168 - IBM 5162, 6 Mhz, zero wait state RAM
ROM_LOAD( "59x7594.82s147an.u90", 0x0020, 0x0200, NO_DUMP) /* S N82S147AN 8629 // VCT 59X7594 */
ROM_END
// According to http://nerdlypleasures.blogspot.com/2014/04/the-original-8-bit-ide-interface.html
// the IBM PS/1 Model 2011 use a customised version of the XTA (8-bit IDE) harddisk interface
ROM_START( ibmps1es )
ROM_REGION16_LE(0x40000, "bios", 0)
ROM_LOAD16_BYTE( "ibm_1057757_24-05-90.bin", 0x00000, 0x20000, CRC(c8f81ea4) SHA1(925ed0e98f9f2997cb86554ef384bcfaf2a4ecbe))

2
src/mame/drivers/compc.cpp
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@ -25,7 +25,7 @@ RAM: 640K
Bus: 3x ISA
Video: On board: MDA/CGA/Hercules/Plantronics
Mass storage: 1x Floppy 5.25" 360K and (PC10) another 360K or (PC20) 3.5" harddisk
On board ports: Floppy, XT-IDE Harddisk, Mouse, serial, parallel, RTC, Speaker
On board ports: Floppy, XTA(8-bit IDE) Harddisk, Mouse, serial, parallel, RTC, Speaker
Options: 8087 FPU
***************************************************************************/

18
src/mame/drivers/europc.cpp
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@ -5,26 +5,26 @@
*
* Schneider Rundfunkwerke AG Euro PC and Euro PC II driver
*
* Manuals and BIOS files: ftp://ftp.cpcszene.de/pub/Computer/Schneider_PC/EuroPC_XT/
* Manuals and BIOS files: ftp://ftp.cpcszene.de/pub/Computer/Schneider_PC/EuroPC_XT/ (down), mirror at https://lanowski.de/mirrors/
*
* Euro PC: Computer and floppy drive integrated into the keyboard, 8088, 512K RAM, there was an upgrade card for the ISA slot that took it to 640K, single ISA slot
FD360 external 360K 5.25" DS DD floppy, FD720 external 720K 3,5" DS DD floppy, HD-20 external harddisk, internal graphics card is CGA or Hercules, 64KB VRAM
* Euro PC II: like Euro PC, socket for 8087, 768K RAM on board, driver on Schneider DOS disk allowed the portion over 640K to be used as extended memory or ramdisk.
* Euro XT: conventional desktop, specs like Euro PC II, two ISA slots on a riser card, 102 key seperate keyboard, internal XT-IDE 20MB harddisk, connector for FD360 and FD720 was retained
* Euro XT: conventional desktop, specs like Euro PC II, two ISA slots on a riser card, 102 key seperate keyboard, internal XTA (XT-IDE) 20MB harddisk, connector for FD360 and FD720 was retained
*
* Only BIOS versions >2.06 are supported so far because of changes in the memory management, according to https://www.forum64.de/index.php?thread/43066-schneider-euro-pc-i-ii-xt-welche-bios-version-habt-ihr/
* Versions 2.04 and 2.05 only show a single dash on the top left of the screen.
* https://www.forum64.de/index.php?thread/43066-schneider-euro-pc-i-ii-xt-welche-bios-version-habt-ihr/ claims Versions BIOS >=2.06 have a change in memory management.
* Versions 2.04 and 2.05 only show a single dash on the top left of the screen, set slot 1 to from AGA to CGA or Hercules to get them to display.
*
* To get rid of the BIOS error messages when you first start the system, enter the BIOS with Ctrl-Alt-Esc, match the RAM size to your settings in MAME, set the CPU speed to 9.54MHz
* and the graphics adapter to Color/Graphics 80, internal graphics off
* and the graphics adapter to Color/Graphics 80 or Special Adapter, internal graphics off
*
* To-Do: * An external 20MB harddisk (Schneider HD20) can be added to the PC and PC II. This is a XT IDE drive. The BIOSs contain their own copy of the WD XT IDE BIOS that can be activated from the BIOS setup menu.
* To-Do: * An external 20MB harddisk (Schneider HD20) can be added to the PC and PC II. This is a XTA (8-bit IDE) drive. The BIOSs contain their own copy of the WD XT IDE BIOS that can be activated from the BIOS setup menu.
* (load debug, then g=f000:a000 to enter formatter routine)
* * emulate internal graphics, but AGA is not quite the correct choice for the standard graphics adapter (it's a Commodore standard), as the Schneiders are only capable of switching between Hercules and CGA modes.
* * The PC 2 and XT have 768K of memory that can be configured from the BIOS setup as 640K, 640K+128K EMS and 512K+256K EMS. The EMS options are not visible in our emulation and loading the EMS driver fails.
* See http://forum.classic-computing.de/index.php?page=Thread&threadID=8380 for screenshots.
* * use correct AT style keyboard for XT
* * make BIOS versions v2.04 and v2.05 work
*
*
*****************************************************************************************************/
@ -546,6 +546,10 @@ ROM_START( euroxt )
ROMX_LOAD("euroxt_bios_v1.01.bin", 0x8000, 0x8000, CRC(1e1fe931) SHA1(bb7cae224d66ae48045f323ecb9ad59bf49ed0a2), ROM_BIOS(0))
ROM_SYSTEM_BIOS( 1, "v1.02", "EuroXT v1.02" )
ROMX_LOAD("euro_xt_bios_id.nr.51463_v1.02.bin", 0x8000, 0x8000, CRC(c36de60e) SHA1(c668cc9c5f3325233f30eac654678e1b8b7a7847), ROM_BIOS(1))
ROM_SYSTEM_BIOS( 2, "v1.04", "EuroXT v1.04" )
ROMX_LOAD("euro_xt_bios_v1.04_cs8b00_5.12.89_21_25.bin", 0x8000, 0x8000, CRC(24033a62) SHA1(9d1d89cb8b99569b6c0aaa7c6aceb355dc20b2fd), ROM_BIOS(2))
// BIOS ROM versions 1.02 and 1.04 were accompanied by identical char ROM versions 50146, which in turn match the one used in /bus/isa/aga.cpp
ROM_END
// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS

3
src/mame/drivers/ps2.cpp
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@ -10,6 +10,9 @@
#include "bus/pc_kbd/keyboards.h"
#include "softlist_dev.h"
// According to http://nerdlypleasures.blogspot.com/2014/04/the-original-8-bit-ide-interface.html
// the IBM PS/2 Model 25-286 and Model 30-286 use a customised version of the XTA (8-bit IDE) harddisk interface
class ps2_state : public driver_device
{
public:

7
src/mame/drivers/tandy1t.cpp
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@ -34,7 +34,12 @@ Tandy 1000 (80286) variations:
1000RLX-HD 1024MB RAM 10.0/5.0 MHz v02.00.00
Tandy 1000 (80386) variations:
1000RSX/1000RSX-HD 1M-9M RAM 25.0/8.0 MHz v01.10.00 */
1000RSX/1000RSX-HD 1M-9M RAM 25.0/8.0 MHz v01.10.00
According to http://nerdlypleasures.blogspot.com/2014/04/the-original-8-bit-ide-interface.html
the 286 based Tandy 1000 TL/2, TL/3, RLX, RLX-B and the 8086 based Tandy 1000RL & RL-HD
used XTA (8-bit IDE) harddisks.
*/
#include "emu.h"
#include "machine/genpc.h"