Re: [Freedos-user] upper memory trick

2016-07-22 Thread Tom Ehlert
> On 22/07/2016 10:34, Tom Ehlert wrote: >>> (Honestly, FreeCOM needs to be better optimized for size and then we >>> wouldn't have to worry at all. That is one of our weakest links.) >> >> seriously: command.com has ~3 K resident size. what are you >> complaining about? > This implies swapping ca

Re: [Freedos-user] upper memory trick

2016-07-22 Thread Eric Auer
Hi again, here is an improved version of Jack's trick: By using UHDD /B instead of UIDE, to squeeze out a bit more free low DOS RAM in the first 640k without getting risks of "protected mode DMA service troubles" with too cheap new BIOS versions: UIDE can be loaded safely into UMB after loading U

Re: [Freedos-user] upper memory trick

2016-07-22 Thread Mateusz Viste
On 22/07/2016 10:34, Tom Ehlert wrote: >> (Honestly, FreeCOM needs to be better optimized for size and then we >> wouldn't have to worry at all. That is one of our weakest links.) > > seriously: command.com has ~3 K resident size. what are you > complaining about? This implies swapping capability,

Re: [Freedos-user] upper memory trick

2016-07-22 Thread Tom Ehlert
>> Has anyone tried "Installhigh=C:\FDOS\COMMAND.COM" >> I have that working for a few apps (including DP and so far no issues, also >> am loading CDROM drivers earlier in autoexec.bat and I can cram nealy >> everything into upper memory. > No, I never use INSTALL, though I'm vaguely aware of it.

Re: [Freedos-user] upper memory trick

2016-07-21 Thread Rugxulo
Hi, On Thu, Jul 21, 2016 at 1:35 PM, Don Flowers wrote: > > Has anyone tried "Installhigh=C:\FDOS\COMMAND.COM" > I have that working for a few apps (including DP and so far no issues, also > am loading CDROM drivers earlier in autoexec.bat and I can cram nealy > everything into upper memory. No,

Re: [Freedos-user] upper memory trick

2016-07-21 Thread Don Flowers
Has anyone tried "Installhigh=C:\FDOS\COMMAND.COM" I have that working for a few apps (including DP and so far no issues, also am loading CDROM drivers earlier in autoexec.bat and I can cram nealy everything into upper memory. On Thu, Jul 21, 2016 at 1:03 PM, Eric Auer wrote: > > Hi, here is an

[Freedos-user] upper memory trick

2016-07-21 Thread Eric Auer
Hi, here is an interesting suggestion from Jack: In spite of the limitation of FreeDOS to support only one UMB provider, it seems to be possible to do the following to mix different UMB sources: > [...] It is NOT necessary to modify your kernel to get more UMBs > in the monochrome-video area. A "