Twentieth Anniversary Mac |
June, 25, 2003 12:13 PM |
OSXGuru |
Just wanted to let you folks know that I am soon to be the proud owner of a Twentieth Anniversary Mac (winging its way to Winnipeg on the arms of FedEx as I type). This should speed up the development of XPostFacto for the TAM significantly :-) |
. |
RE: Twentieth Anniversary Mac |
October, 26, 2003 7:59 PM |
frankdtito |
. |
Here's the Apple Technical Note TN1061 that Joe was referring to: http://developer.apple.com/technotes/tn/tn1061.html peace F ps Hey, did anyone notice that only the last 30 messages on this topic are displayed? I suppose the older message are lost in the ether... |
. |
RE: Twentieth Anniversary Mac |
October, 21, 2003 10:16 PM |
frankdtito |
. |
peh. |
. |
RE: Twentieth Anniversary Mac |
October, 19, 2003 9:32 PM |
joevt |
. |
Nope. Is that some kind of UNIX thingy? I couldn't find any docs about the Twentieth Anniversary Mac on Apple's website. I guess The Power Mac 5500/6500 docs would be the closest match. The results of the following might be useful: 1) In Mac OS 9.1, go into MacsBug and type the following three lines: log driverlist drvr log;g A file called driverlist is created on the Desktop. What are the contents? This will tell the name of the driver for the built in display. There might be a backlight driver listed also. 2) Connect the TAM to another Mac with a serial cable (See technote 1061), go into Open Firmware, and using a serial terminal program like ZTerm on the other Mac, type the following Open Firmware commands (after starting a capture in Z-Term): dev / ls dump-device-tree printenv devalias device-end words Those commands will tell just about everything about the hardware and the Open Firmware commands that are available. |
. |
RE: Twentieth Anniversary Mac |
October, 18, 2003 1:51 PM |
lyonsdj88 |
. |
That's what I was thinking also, Joe. Do you know anything about the "cpoke" command? |
. |
RE: Twentieth Anniversary Mac |
October, 18, 2003 2:00 AM |
joevt |
. |
Probably 192 or 256K of the 4MB ROM is for Open Firmware stuff. Part of that is precompiled Forth code but most of it is tokenized Forth code. I have a set of utilities that can make both parts readable. Maybe their is some backlight code in the Open Firmware stuff? |
. |
RE: Twentieth Anniversary Mac |
October, 17, 2003 11:42 AM |
lyonsdj88 |
. |
Damn, pmset can only dim the display. Well off to find a new cure. ftp:// www.emulators.com/APPLEMAC/utility.img .........There is a tool on that disc that will .img your rom if you would like for me to have a look at it and see if I can find the magic key to the backlight. |
. |
RE: Twentieth Anniversary Mac |
October, 17, 2003 11:11 AM |
lyonsdj88 |
. |
Can you use the Tam to be sure the display is set to 800x600.I'll see if I can dig up the commands to try to set the backlight from the terminal. cpoke would best be left untryed until more info can be found as your LCD would be hard to replace. |
. |
RE: Twentieth Anniversary Mac |
October, 17, 2003 5:40 AM |
frankdtito |
. |
lyonsdj88, the Voodoo3 video card isn't on Ryan's compatibility page. I imagine it might work, but without any video acceleration. Have you installed a Voodoo3 under X yet? anyway... I have a TAM and a B&W G3. The TAM is currently operational with 10.1.5 with network and everything. Except, of course, the bloody backlight. I could pull the ATI Rage 128 PCI video card out of the B&W G3 and install it in the TAM. I wouldn't want to start with this, however, until it is known precisely what needs to be CPOKEd wherever. I think this is what Ryan intends to do (when he has a minute) with the TAM that started this thread. peace F |
. |
RE: Twentieth Anniversary Mac |
October, 15, 2003 3:13 PM |
jseibyl |
. |
"Something like 1:50 so if you had a 3.2ghz P4 then 64mzh PPC!" Smokin'! BTW, this experiment is for education purposes only..... ;-o |
. |
lyonsdj88 |
October, 15, 2003 3:04 PM |
jseibyl |
. |
cool. Just trying an experiment! I turned my 1gig Athlon homebrew into a Quadra 950 running OS 8.1 using Basilisk, even going so far as to throw an alias into the startup folder. I also put an HFS hard disk from an old mac2si into it, and am using that as the boot disk off a 2940 windoze scsi card, works pretty well. Now that is a FrankenUBERStankinMAC... ;-) |
. |
RE: Twentieth Anniversary Mac |
October, 15, 2003 11:10 AM |
lyonsdj88 |
. |
Highjacker ,danm it. Highjerker:-) |
. |
RE: Twentieth Anniversary Mac |
October, 15, 2003 11:08 AM |
lyonsdj88 |
. |
jseibly=highjecker;-p |
. |
RE: Twentieth Anniversary Mac |
October, 15, 2003 11:06 AM |
lyonsdj88 |
. |
Yes there is a PPC emulator. Something like 1:50 so if you had a 3.2ghz P4 then 64mzh PPC! That's about as good as a 6100. You'll have to compile the code your self I'll see if I can dig it up if you want it. |
. |
RE: Twentieth Anniversary Mac |
October, 15, 2003 10:59 AM |
jseibyl |
. |
that would be for an x86 of course.... |
. |
frankdtito |
October, 15, 2003 10:51 AM |
jseibyl |
. |
I have to ask, know of an emulator for the PPc chip somewhere?? |
. |
RE: Twentieth Anniversary Mac |
October, 15, 2003 10:38 AM |
lyonsdj88 |
. |
Has anyone ever tried to 'cpoke' the display ,it is on. The brightness is just not set. Once more the backlight is on. Bootx will need a patch to hand video'Boot_video' to Mach_Kernel @ 800x600 as OF hands the video on a Tam @ 640x480 and the LCD can't 'fix' to that. Any one have a Tam with a vidoe card in the PCI slot? It seem to me that the only reason the Tam does not 'work' in X is that no one has taken the time to debug. If anyone with a TAM has a video card in the PCI slot and X installed ,Does the LCD show under displays, can you set it to 800x600. Has anyone tryied thr terminal to set the backlight?????? Some one here did a post on sleep a few days ago and one reply out-lined a howto for setting the PowerManager from the command line. I was playing with it on my 8600 to try to get sleep and I did see a command for Backlight settings for Powerbooks. So, who has OS X installed on a TAM???? If you want the LCD to work you are going to have to do some to get it, or wait....................until someone else fixes it for you. I don't know how hard the X install is on a TAM seems that one may have to run the installer from the HD unless the CD no boot OF has been fixed. If you have a Tam and live in the USA and need a video card for the PCI slot I'll loan out my unused Voodoo3 to you. |
. |
RE: Twentieth Anniversary Mac - Just wondering |
October, 15, 2003 9:35 AM |
voxxdigital |
. |
Frank, I was wondering, once you touched the subject, how fast would Linux behave in say, the 6500. My PPC603ev/300 suffers a lot with OSX, actually is miserably slow. And if it is usable (and which "flavor" of Linux), how easy (or hard) will be to find drivers? Of course, it's a lot easier to find drivers for OSX, but without a L2 G3 upgrade working, OSX in such machines is really not much practical. Actually I would say that it's more like a scientific curiosity than anything usable. |
. |
RE: Twentieth Anniversary Mac |
October, 15, 2003 8:31 AM |
frankdtito |
. |
I found some more information that might help. It seems that some Linux distributions support the TAM: http://www.jonh.net/lppcfom-serve/cache/350.html http://penguinppc.org/projects/quik/quirks.shtml But they don't specifically say whether the TAM backlight (or the power LED for that matter) turns on. Google groups isn't much help: http://groups.google.com/groups?q=tam&meta=group%3Dcomp.os.linux.powerpc http://groups.google.com/groups?q=20th&meta=group%3Dcomp.os.linux.powerpc It seems that most of these postings were made in the late 1990s by geeks who picked up a TAM when they dropped down to about $1000 on the used market (as I did) and felt they had to have Linux on it (which I didn't). The aforementioned geeks didn't have much luck, at least as chronicled by the public record. Whew! It seems like it would be so much easier to find some Apple hardware engineer who did some time in thea mid 1990s and ask him why, oh, why? peace F |
. |
RE: Twentieth Anniversary Mac |
October, 15, 2003 8:09 AM |
frankdtito |
. |
I don't know if the code to turn on the TAM backlight is in the boot ROM or not. I mean, it probably is, as it seems to come on before the hard drive starts clicking away. The relevant code is probably near the code that turns on the power LED on 6360/ 6400/6500/TAM machines. On the MacOnLinux site, I found a utility named "ROM Grabber" that makes a copy of Old World ROMs. It is on the very bottom of this page: http://www.maconlinux.org/download.html I suspect that ROM Grabber will make a 4MB dump of raw PowerPC machine code. lyonsdj88, how's your PowerPC assembler code? I had 8088 assembler in my tech school training. I imagine PowerPC is a little more complicated. :) If one does a Google search: http://www.google.com/search?q=powerpc+disassembler+mac One finds lots of goofy shit. I don't know if CodeWarrior has a disassembler that can handle such a dump. Anyone? peace F |
. |
RE: Twentieth Anniversary Mac |
October, 14, 2003 2:25 PM |
voxxdigital |
. |
One curious thing - My Performa 6360 (with PM6500 mobo) power LED does not light under OSX. It lights under OS9, though. Maybe it have something related to TAM's backlight? |
. |
RE: Twentieth Anniversary Mac |
October, 14, 2003 11:47 AM |
lyonsdj88 |
. |
Does the Tam's backlight get turned on by boot rom? From what I understand you can't use the backlight in OF because OF run's at 640x480 and the Tam's lcd is fixed at 600x800. Tho it can do 640x480 when running the Mac OS, done through software. Trouble is APPLE folks who worked with HW like the Tam maybe under NDA, or think that they are. Should not be that hard to get this working, I'm thinking the code to turn on thr backlight on is in thr boot rom. Copy the boot rom to disk, Read it,find the code reuse it. OS X been out for 2+ years if I had a Tam and wanted to use the backlight in OS X you can bet your boot rom I'd have it. Now copying the boot rom and using the code is frowned on by Apple, but I don't think they'll Sue, nor whould I care if they did. Folks who payed $7000 for a TAM got the biggest shafting of all time as less than 1year after the last Tam shipped from Apple OS X PB made it to the hands of the developers. |
. |
RE: Twentieth Anniversary Mac |
October, 14, 2003 10:40 AM |
frankdtito |
. |
lyonsdj88, your enthusiasm is heartening, but it doesn't do much good without direct knowledge of TAM internals. Knowing Apple, they probably made the system call to turn on the backlight completely different from anything else they ever manufactured. As I remember, the first release of Mac OS 8.0 did not support the TAM; there was a "special" version for it. (BTW, TAM shipped with a special version of 7.6) The standard 8.1 install did fully support the TAM. Maybe this had something to do with this element of the TAM's uniquenes. Maybe not. Maybe I'm completely wrong... Anyone care to offer an opinion? peace F |
. |
RE: Twentieth Anniversary Mac |
October, 13, 2003 10:41 PM |
lyonsdj88 |
. |
I don't have a Tam, but am willing to try to find this bug and fix it. I'm far from a Unix or OF Guru, tho I do find my way around some how. So if you want to play email Q&A and try this now try that and have a TAM. Shoot a post. |
. |
RE: Twentieth Anniversary Mac |
October, 13, 2003 9:43 PM |
frankdtito |
. |
hmmm.... http://www.opendarwin.org/bugzilla/show_bug.cgi?id=900 Does anyone know anyone who was an Apple hardware engineer in the mid 1990s that might shed some light on this? I mean shoot, it should be two or three lines: If Gestalt ID = 512 and 'bxid' ID: 0x0000302B then do whatever ya gotta do to switch the mofo lite on. I imagine that the "whatever ya gotta do" is the hard part, but someone somewhere has gotta know, dontcha think? peace out F |