nota@cdp.UUCP (01/09/91)
It was a lot messages with questions about
how to use XT-bridge board memory on Amiga side.
The answer is very simple:
You need to use "addmem" program to add XT-memory.
"addmem" takes two parameters: start-address, and end-address, as usual
it is: 200000 and 2a0000 addresses, but you can check your XT memory
physical adoeresses by using any debugging tools with allows to examine
memory.
example:
addmem 200000 2a0000
If you haven't this program I can send hex dump of this program
(it is very small)...
About VGA mode:
There are DFF1C0 - DFF1FF new FatAgnus registers.
I don't have any information about these registers.
If some one know pls give me know.
But I know exactly that if you put 0 value to
register DFF1DC you will turn your Amiga in NTSC mode,
if you put 20 value you will get PAL mode...
example:
move.w.#00,$DFF1DC - NTSC
move.l.#$20,DFF1DC - PAL
if you have VGA monitor you can try 10,20,30,40 and so on values,
one of these turns vga mode. I didn't test it because I haven't
VGA monitor.
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| Sergei V. Polonski MOSCOW USSR |Next cube,Amiga, |
| Phone voice: 07 (095) 335-98-46 |Macintosh IIcx owner. |
| : 07 (095) 934-63-31 |Programmer,DTP expert.|
| INTERNET : cdp!nota@pyramid.xerox.com |USSR market expert. |
| UUCP : uunet!cdp!nota |Co-owner of "PreS&S" |
| BITNET : cdp!nota@labrea%stanford |DTP studio |
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