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Posts Made By:
TomL_12953
Forum:
Altair 8800
08-08-2009, 04:10 PM
Replies:
29
Museum restoration of 8800
Views:
120,136
Posted By
TomL_12953
OK, so it's like this? 63443 = 11110111...
OK, so it's like this?
63443 = 11110111 11010011 b
octal = 367 323
Reverse bytes: 323 367
and those are the two bytes I'd put in the program.
Tom Lake
Forum:
Altair 8800
08-07-2009, 03:37 PM
Replies:
29
Museum restoration of 8800
Views:
120,136
Posted By
TomL_12953
You don't have any ROM at all? I have a 64K...
You don't have any ROM at all? I have a 64K static RAM board but I also have I have the 88-PMC EPROM board that takes the top 2K of address space. I'd really miss it if I didn't have the Multi Boot...
Forum:
Altair 8800
08-07-2009, 02:44 PM
Replies:
29
Museum restoration of 8800
Views:
120,136
Posted By
TomL_12953
Ah! So with my 62K RAM, I'd have 62*1024 = 63488...
Ah! So with my 62K RAM, I'd have 62*1024 = 63488 - length of program (45 bytes) = 63443, convert to octal = 173723, reverse bytes = 723 173 mask off upper bit = 323 173
Is this right?
Thanks...
Forum:
Altair 8800
08-07-2009, 02:17 PM
Replies:
29
Museum restoration of 8800
Views:
120,136
Posted By
TomL_12953
Memory Test Question
Maybe I'm not understanding something. 16339 should be 723 037 octal (reversed bytes)
So what's the 323 037?
Tom L
Forum:
Altair 8800
01-31-2009, 05:42 AM
Replies:
29
Museum restoration of 8800
Views:
120,136
Posted By
TomL_12953
3p+s I/o
Have you contacted the guy who wrote the manual, Mark Szpakowski?
szpak@eastlink.ca
He might have kept some of his old work.
Tom Lake
Forum:
Altair 8800
01-28-2009, 07:49 PM
Replies:
29
Museum restoration of 8800
Views:
120,136
Posted By
TomL_12953
Altair Board Schematics
All the schematics you need are in the manuals found at
http://vt100.net/mirror/harte/Altair/
Tom Lake
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