12 May
2010
12 May
'10
1:53 p.m.
On 5/12/10, Fred Cisin <cisin at xenosoft.com> wrote:
On Wed, 12 May 2010, Eric Smith wrote:
I remember debugging a (newer) DOS machine setup with HIMEM.SYS
problems... after much more time spent fiddling around with config
files than I care to confess to, it dawned on me that it's hard to
load DOS HIGH and use extended memory when the machine in question
only has four 256KB SIMMs (i.e. - no physical memory past 1MB).
I suppose it's even harder when the machine only has 20 address lines.
Ah... all those old skills that were once considered absolutely
essential to succeed in the IT biz... rusting away (but I was doing
RT-11, VMS, UNIX, and AmigaDOS when DOS was "king". DOS skills were
for setting up sound blasters and low memory issues in game
machines ;-).
-ethan
Obviously some features of the later versions of
DOS aren't going to
work on the 5150, e.g., EMM386.
. . . and HIMEM.SYS won't work on 5150 or 5160