Has anyone got Dosemu set up on this Laptop?
I have Dosemu 0.98.6 on this, and am stuck with the settings. In
/etc/dosemu.conf at about line 105, I have the following
$_video = "vga"
$_console = (0)
$_graphics = (1)
The above settings because I need vga to use the programs I am running,
particularly t4040.exe for driving my Analogue Signature Analyser, for
faultfinding on Electronic Hardware, and Megazeux, for keeping my kids
amused. T4040 needs vga, and Megazeux uses enhanced Ansi; both are
otherwise primitive Dos programs which should present no hassle. If I
set $_console = (1), and $_graphics = (0), dosemu runs with no problems,
but T4040 finds no VGA card, and Megazeux looks like a bad trip on
something very strong :)
$_videoportaccess = (0) # Is this right?
$_vbios_seg = ???? #set the Address of your VBIOS (e.g.0xe000)
$_vbios_size = ???? # set the size of your BIOS (e.g. 0x8000)
$_vmemsize = ???? #size of regen buffer.
1. Can anyone tell me how to set these? The system reserves upper
memory, and I have not managed to get a breakdown of what's going on
there. The only thing information I can get is from Norton's SYSINFO,
(v6.1 ) which tells me
"Video Memory - 256K or more (2 Megs, I think)
Video Segment Address - B800 hex
Video Page Size - 4096 Bytes
32 K-Bytes display memory (at B800 - C000 hex)
ROM-BIOS Extensions are found at hex paragraphs: C000"
The BIOS on this are Acer's own, not AMI or Award. They have reserved
scores of Software interrupts, which SYSINFO lists addresses for; most
but not all begin with F000. Here's the ones that mention video:
05 Print Screen F000:FF54 BIOS
10 Video 0638: 0819 BIOS
1D Video parameters F000: F0A4 BIOS
1F Video Graphics Characters C000: 7371 BIOS
42 Relocated Video Handler F000: F065 BIOS
The Bios also have Hardware IRQs 9, & 13; Sysinfo claims 13 is for the
coprocessor, so I presume 9 is for the video.
Under "Device drivers" I get
0638:0000 CON Console keyboard/screen
0071:0006 CON Console keyboard/screen
I probably have the answer to my own questions here, I just can't
make sense of it.
2. The Dosemu-Howto makes reference to a program called "GETROM"
which apparently dumps the video bios to a file, and there are options
for using it ....around line 1400 :-(( . Has anyone a url for this?
--
Regards,
Declan Moriarty
