Many Thanks!! The SPC-2016P machine works correctly with the new EMS driver, it works exactly like the Award 286 and GW 286CT GEAR, and for some reason, now CheckIt now detects the F region correctly. I never thought it could be a driver issue. And for the KMS-C-02 ,Qram is detecting 128kb of free U...

I tested the SPC-2016P and it lock's up when the EMS driver is loading. Even if no UMB driver is used. I put HIMEM.SYS after EMS.SYS but it still freezes. The KMS-C-02 may lock up with a Windows 2.11 application like Word for Windows but not with applications that use conventional memory only, howev...

Hello

Thanks for your reply. I'm going to test these machines without CLEAREMS.SYS, and i did not notice EMS driver was loaded twice. I am using MS-DOS 3.31, for that reason I chose to use QRAM instead UMB_DRVR.SYS.

Hello I tested QRAM in the four SCAT/SCATsx machines. I found some problems with the EMS and upper memory area. I don't know if this issue is a bug, a limitation of these bios or some Pcem limitation. The Award 286 and GW 286CT-GEAR works with both EMS memory and 128kb of UMB memory. The KMX-C-02 wo...

I Tested several applications, The KMX-C-02 machine boots normally, but at some point it locks up, when typing or playing a game with the arrow keys. The games I tested: Rick Dangerous II: during the game the machine stops responding an behaves as if a direction key were pressed and hold. Rock'n Rol...

Hello! It has nothing special, but there is more documentation about this card than any other from the period. I think it's not so difficult to implement this LIM EMS 3.2 board. The EMS driver developed by lo-tech is based on the driver for an 8-bit ISA BocaRam card from 1988. Laser XT machines alre...

Hello. I would like to have the Lo-tech 2MB EMS Board emulation, if It is possible , (like UniPCemu has). I know many users asked EMS memory boards emulation before. I found a site with a datasheet from this site https://www.lo-tech.co.uk/wiki/Lo-tech_2MB_EMS_Board . It also includes a diagram of th...

Hello Sorry for writting again! I found another small issue related to Hard-Ram. The Hard-Ram drive can be only accessed if There is no hard-disk installed because it uses the C drive letter. If a third party hard-disk is installed, it uses the C drive letter, and the Hard-Ram is not assigned a D or...

I found only one small issue after applying the patch. The TEST1 utility fails (abort) when checking the memory, however the memory amount in 1MB/2MB config is correctly detected. But in the other hand CheckIt does not find any issue. The blue screen works ok. Windows 2.03 detects the EMS memory cor...

Thanks you! The machine works!. Tested and working with the Xebec MFM controller and a 20 MB hard disk. I found two minor glitches. 1. With 1Mb configuration PCEM, not only the machine, crash during boot time. With 2Mb, starts normally, but only 640 of EMS is detected with no Hard-Ram installed. (64...

Hello. I found a bug in the T1200 emulation. The machine does not boot and says "1-HDD & 1-FDD type". I don't know if I'm asking too much, I know a floppy version of T1200 existed with two 3.5 720kb floppy drives, and maybe it uses a different BIOS I think it can be used instead as wor...

Hello.

I found inside the pacth the CPU is defined as 8088.
As is written here, the CPU is 8086. https://usermanual.com/document/6969/to ... ation.html
The memory amounts are correct.

Hello. Thank you!. The T1200 it's a very complete XT laptop and a great addition. By the way, I recently found some info i did not know earlier. I read that Toshiba T1200, among other XT based laptops, uses a hard disk contoller developed by JVC, but it's not a standard MFM/RLL XT controller. Some b...

Hello. I recently tested the game called Pictionary in Toshiba T1000. I found the game locks up immediately after running PICTION.EXE. Then I tested the same game with Tandy 1000 HX and SL/2. On SL/2 worked OK. First I thought it was a problem with DOS 2.11 since both machines have the same version ...

Hello. In both emulated machines Tandy 1000 HX and Toshiba T1000, I booted from ROM DOS 2.11. May be it works differently than standard DOS 2.11 Both of these DOS versions have been modified to support 3.5 720 kb floppy disks. As far as i know PC-DOS 2.0-2.11 supports only 5.25 floppys up to 360 kb ...

Hello. First, I'd like to thanks to all the people that work on the project, those added new emulated machines and those created the guide to compile the SVN branch of PCEM. I tested Thosiba T1000 and worked ok, so far. I'd like to have T1200 emulation (if it's possible) because it has: -20 mb hard ...

I tested Jumpman again and the speed problem occurs only in PCjr the 16 color RGB and 3 voice speaker works ok.
With other machines runs at correct speed on 8088 at 4.77 mhz. CGA composite color mode work correctly too, because it has the same colors than the screenshots on Mobygames site.

Hello. I found some bugs in booter games from 1984-85 and it seemed important to me report them. (i downloaded from retrograde station but the site is down since 2014) both games support IBM PCjr 16 color graphics and 3 voice sound, and only CGA 4 color and IBM speaker in the other machines. I recen...

Hello. First of all would like to thank for the hard work done. Its a complete PC emulator and the emulated hardware is greater than any other. I know this bug may be not top priority now, because a real SB can be used instead SB emulation in the GUS. I found some strange bugs that locks up the emul...

Hello Sorry for reviving this old thread. I tested it in the released v13. I recently found that the Lock up of the emulator is produced in the setup utility when test the Roland/Sound Blaster emulation and is EMM386 loaded In Memory. MegaEM 2.07 included the Gravis v4.11 drivers will work, SBOS wil...

Hello. First of all I want to thanks for this new version of PCem. The ability to have several configurations make the things easier, and The 3dfx Voodoo emulation is much faster tested Need For Speed II SE and work fast like in real machine emulating a P100 whit 32 MB ram I found an issue when I at...

The Laser XT/3 was changed to 8086 correctly. But the memory granularity was not added in any of the Laser XT machines, however the 512kb was established as the minimum, like the real hardware. I know will be a difficult task to add all the memory combinations of Convetional/EMS memory of the real h...

Hello. The Toshiba T1000 had 512kb of RAM as basic configuration and the 768kb expansion fills the remaining 128kb of conventional RAM and adds another 640kb. That 640 kb can be used as LIM EMS 3.2 or Hard-RAM. In the original BIOS the user can choose the amount of memory needed for one or the two a...

Hello! I recently played a DOS game called "Rock'n Roll" from Rainbow Arts launched in 1990. The game Supports Hercules/CGA/EGA graphics and Adlib or PC speaker sound. Requires 300kb of conventional RAM and DOS 3.00 or higher I use EGA graphics and adlib for music I tested the game and wor...

I thought i was not possible to add 1MB EMS memory support because the complexity of the algorithm required. So now it's very close to the real machine. May be some day printer emulation might be added (using some kind of passtrought, like Vdos Plus) for a complete emulation. It's an awesome work. M...

What about implementing Sharp PC 7221. According PC-Magazine from march 1988 on page 123 says the are similar, both of the had the monochrome blue screen and the same memory limit of 1.6 MB. Except the PC 7221 has a 80286 cpu running at 6,8 or 10 mhz, which may be easier to emulate. The biggest diff...

My bad, I tested the Write application of Windows 2.11 with EMS memory and it works correctly. I added STACKS=9,512 in the config.sys like Greatpsycho suggested me for the 386-SX KMX-C-02. So there is no issue with EMS memory emulation. By the way, What parameters must be used by the Chad utility in...

Hello Sorry. I thought that if all chipsets EMS 4.0 supported mapping upper memory areas other than the 64kb page frame they also must support the large page frame. But after testing the emulated SCATsx i can see they're two differents things unrelated one to another. The Windows 2.11/286 readme fil...

Hello. Yes i used that test, and also i used the Manifest utility included in Qram 2.02. i took two screenshots. The first is From Toshiba and the Second from GW-286CT GEAR using the SCAT chip emulation developed by Gratpsycho. In the Toshiba there is no Mappeable memory. This mappeable memory is th...

Hello! I think i found a bug. When i run Windows 2.11/286 with EMS memory, the emulator Lock up when i open the Write application, but when i configure all memory as XMS, including the 384kb upper memory, there is no problem. (I don't know if the patch of Greatpsycho fixes this issue). Also I Want t...