Reports
When someone reports some findings involving several selectors and/or a
report is too long to include with the selector entry above, that report
is listed here. They should be as short as possible with the maximum
amount of information.
Accelerated 68K Macintosh Computers
(by Des Courtney)
On 680x0 Macs running 7.1 or 7.5, the 'cput' selector can return some unusual or erronious results. On certain AV models, some Powerbook 500s, and on machines with accelerator boards, the result is always wrong.
For example, on my Mac LC with a Sonnet 50/25 '040 board 'proc' returns 68040 and 'cput' returns 68010, unless you use "older" headers that interpret the result as 68020... Applied Engineering's and MicroMac's boards are prone to this as well.
A work-around for programmers is to use the 'sysa' selector to determine whether to call 'proc' or 'cput'. But some development houses don't bother and just lean on 'cput'. Several applications refuse to run on the above mentioned models.
I wrote a small extenstion, named Gestalt Kaput, that overrides 'cput' to mirror 'proc' on 68k machines. You can obtain a copy by sending an email to Des Courtney (e-mail address removed).
Accessing the Gestalt Manager
(by Rene Ros)
Several applications can use additional code to expand their capabilities
and using this they may be able to access the Gestalt Manager. The software
listed below are additional code providing access to the Gestalt Manager.
Only a few locations are listed here, use the filename to search for other
locations. And use the nearest mirror site of FTP sites.
CheckGestaltFor by Neil Shulman
Hypercard external to access the Gestalt Manager.
ftp://<info-mac.org mirror>/card/check-gestalt-for-xcmd.hqx
Gestalt Pro 1.1.2 by Rene G.A. Ros
External for 4TH Dimension Relational Database application from
ACI/ACI US.
ftp://<info-mac.org mirror>/dev/a4d/ext/gestalt-pro-112.hqx
Gestalt XFCN 3.2.1 by Jeff Iverson
Hypercard XFCN to query the Gestalt Manager.
ftp://<info-mac.org mirror>/card/gestalt-321.hqx
GestaltExt by Andre Cavegn
External for 4TH Dimension Relational Database application from
ACI/ACI US.
ftp://<info-mac.org mirror>/dev/a4d/ext/gestalt-ext.hqx
Get Gestalt (AppleScript addition) 1.2 by Mark Alldritt
Provides access to the Gestalt Manager for AppleScript scripts.
ftp://gaea.kgs.ukans.edu/applescript/osaxen/script-tools-131-as.hqx
Informant XFCN 1.0 by Jeff Iverson
Hypercard XFCN to query the Gestalt Manager.
ftp://<info-mac.org mirror>/card/information-10-xfcn-demo.hqx
Jon's Commands 1.8.1 (AppleScript addition) by Jon Pugh
Provides access to the Gestalt Manager for AppleScript scripts with the
machine environment command.
ftp://<info-mac.org mirror>/card/jons-commands-*.hqx
AppleShare File & Print Server selector codes
(by Rene Ros)
The selectors are defined when the application has run. If it is still running (or wasn't properly quit) the response is one. When the application has properly quit the response is zero.
admn AppleShare Admin
asps AppleShare Print Server
hgfd AppleShare File Server
(these three are undocumented)
AppleTalk
(by Rene Ros)
With the release of the System 7 Tuner product, AppleTalk will not be loaded at startup, if prior to the previous shutdown AppleTalk was turned off in the Chooser. Under this circumstance, the 'atkv' selector is not available. If the 'atkv' selector is not available under System 7, this is an indicator that AppleTalk cannot be turned on without doing so in the Chooser and rebooting the system. &AT02
Clock Chipped
(provided by Marc Schrier with additional information from Jeff Baudin and
Mike Cohen and edited by Rene Ros)
Several Macintosh computers have been observed to return a different
machine type value (using the gestaltMachineType selector) when the
clock speed was changed. Mainly Power Macintosh computers behave like
this. The following tables provide an overview of these values.
In addition to clock chipping a Macintosh, you can also:
- swap a resistor in a Centris 650 to make it a Quadra 650;
- remove jumper J18 of a Quadra 605 and it becomes a LC475.
- install jumper J18 on a LC475 and it becomes a Quadra 605.
- install and remove resistors and jumpers from the Wombat motherboard
used in the Centris 650, Quadra 650 and Quadra 800 to switch between those three
computers and two new, unreleased machines.
- remove the LED jumper from a PM 7500 and it becomes a PM 8500.
===========================================================================
Machine Type values returned by clock-chipped M680x0 computers
===========================================================================
Model Name CPU Speed (MHz)
20 25 33
---------------------------------------------------------------------------
LC III 27- 62
Q605% 93! 94- 95!
LC475% 86! 89- 90!
LC575 87! 91! 92-
---------------------------------------------------------------------------
- value returned when unmodified
! value not belonging to any known, released computer
% if you remove jumper J18 from a Q605 it becomes a LC475
---------------------------------------------------------------------------
===========================================================================
Machine Type values returned by clock-chipped PowerPC computers
===========================================================================
Model Name CPU Speed (MHz)
60 66.6 75 80 82 90 100 110 112 120
---------------------------------------------------------------------------
PM 6100/60(AV) 75- 100 101!
PM 6100/66(AV) 75 100- 101!
PM 7100/66(AV) 111! 112- 113! 114!
PM 7100/80(AV) 112 47-
PM 8100/80(AV) 61! 64! 65-
PM 8100/100(AV) 65 55- 40 12!
PM 8100/110(AV) 65 55 40- 12!
Power100# 65 55 55- 12!
---------------------------------------------------------------------------
- value returned when unmodified
! value not belonging to any known, released computer
# Macintosh clone by Power Computing
---------------------------------------------------------------------------
===========================================================================
Machine Type values returned by modifying the Wombat motherboard
===========================================================================
Architecture Jumper No Resistors Resistor R151 Resistor R152
---------------------------------------------------------------------------
M68040 No 51! 30 C650 36 Q650
Yes 59! 30 C650 35 Q800
PPC PDS Card No 123 PM 800 120 PM C650 122 PM Q650
Yes N/A 120 PM C650 123 PM 800
---------------------------------------------------------------------------
! value not belonging to any known, released computer
---------------------------------------------------------------------------
For more info on clock-chipping (or otherwise modifying) Macintosh
computers: http://socrates.berkeley.edu/~schrier/mhz.html
Copy protection using Gestalt
(by Rene Ros)
In D e v e l o p 17 Brigham Stevens suggests to use Gestalt and FindFolder as a way to implement copy protection in the most compatible way possible.
By determining several characteristics at installation from the Gestalt Mgr and the DirID of the System Folder with FindFolder you can check for this info later. When is has changed you can then ask for the serial number or a password again.
Environs & SysEnvirons
(by Rene Ros)
Using Macsbug it is very easy to determine that the SysEnvirons function uses the Gestalt Manager to fill the fields of the system environment record. So, when you install your own gestalt definitions by using the ReplaceGestalt function this will also change the information returned by SysEnvirons.
The older Environs function doesn't use the Gestalt Mgr and the code looks only at two values in ROM (the machine box flag and ROM version).
Executor Mac-emulator
(by Rene Ros)
Executor is a Macintosh Emulator for DOS machines, published by Abacus Research and Development, Inc. (1993/1994). The Gestalt Manager is also emulated and the version I have seen (on a 486DX) says it's a MacPlus with a 68LC040 processor with MMU. The 'sysv' selector returns 0x607 but it also lists a lot of selectors usually not installed by 6.0.7. Like the 'edtn' and 'stdf' selectors. For those it then simply returns zero. Strangely enough the 'tabl' selector is not installed, but this doesn't confuse the Gestalt! application!
Gestalt Apple Event
(by John W. Baxter)
The scriptable Finder, implemented by the Finder Scripting Extension, provides an Apple event to query the Gestalt Manager. This can be used from AppleScript using the 'computer' command. And using the PPC Toolbox this now also means you can query a remote computer, provided the Finder Scripting Extension is installed. The Finder Scripting Extension is installed with System 7.5 (which also includes Finder 7.1.4) but can also be used with Finder 7.1.3. The extension will later be rolled into the Finder.
The direct parameter for this event is a Gestalt selector code. If this is the only parameter, the result is the result of calling Gestalt with that code.
An optional second parameter can be included, in which case it is a 32 bit number against which the result of calling Gestalt with the given selector is tested. When this parameter is present, the event returns true if all bits set in the optional parameter are set in the result from Gestalt, and false otherwise. In AppleScript, when telling Finder:
computer "os " has 3
returns true if the low-order two bits are set in the result from Gestalt. The equivalent event built "by hand" would be addressed to Finder (on the machine of interest) and would have the parameters
key value type
'----' 'os ' typeType (alternative: "os " typeChar)
'has ' 3 typeLongInteger ('has ' is keyASPrepositionHas)
The event class would be kAEFinderSuite ('fndr'), and the event ID would be kAEGestalt ('gstl').
For more reading:
D e v e l o p Magazine, Issue 20. "Scripting the Finder from your
Application" by Greg Anderson, page 65.
Finder Suite documentation available (starting in March 1995) on the
Developer CD Series (Reference) as
:Technical Documentation:Apple Events Registry & Suites:
AE Suite Finder:Finder Suite
Gestalt Applications
(by Rene Ros)
Several specialized applications are available to display all installed
Gestalt selectors. And several other applications heavily depend on the
Gestalt Manager to show information on hardware and software.
Only a few locations are listed here, use the filename to search for other
locations. And use the nearest mirror site of FTP sites.
AnGST 1.2 by Todd McDaniel
Small and simple application which displays the result of a few pre-
defined selectors.
http://io.com/~scooter/AnGST1.2.sit.hqx
Contact: Todd McDaniel
Apple System Profiler by Apple Computer Inc.
The first released version (1.0, initially labeled 3.5?) works only
with System 7.5.2 and 7.5.3 with these Macintosh models:
Power Macintosh 61xx, 7100, 7200, 7500, 8100, 8500, 9500;
Performa 5200, 5300, 6200, 63xx;
PowerBook 190, 2300, 5300.
Version 1.0.1 adds support for:
Power Macintosh 5200, 5300, 5400, 7600
Performa 6100
DisplayGestalt by Craig Marciniak
Small application displays configuration using Gestalt Mgr, includes
C-source.
ftp://mac.archive.umich.edu/development/libraries/displaygestalt.cpt.hqx
Gestalt.Appl 2.7.8 by Jean-Pierre Curcio
Displays responses from installed selectors and information about the
returned responses.
THIS IS THE 'OFFICIAL' GESTALT HUNTERS TOOL! Please send saved config
files from Gestalt.Appl to the editor.
http://www.rgaros.nl/gestalt/gestalt-appl.sit.hqx
Contact: Jean-Pierre Curcio
Gestalt! 3.0 by Roland Mansson
Displays responses from installed selectors.
ftp://ftp.lu.se/pub/mac/util/gestalt300.cpt.hqx
ftp://<info-mac.org mirror>/cfg/gestalt-300.hqx
Contact: Roland Mansson
GestaltDA 0.4 by Carl C. Hewitt, Apple Computer Inc.
Displays responses from installed selectors.
ftp://ftp.info.euro.apple.com/Apple.Support.Area/Developer_Services/Tool_Chest/OS_Utilities/GestaltDA_0.4.sit.hqx
Contact: D e v e l o p
GestLab 3.0 by Jean-Pierre Curcio
Displays responses from installed selectors and information about the
returned responses. Also compares with internal database.
THIS IS THE 'OFFICIAL' GESTALT HUNTERS TOOL! Please send saved config
files from Gestalt.Appl to the editor.
http://www.rgaros.nl/gestalt/gestlab.sit.hqx
Contact: Jean-Pierre Curcio
Go Gestalt appl 1.8 by Paul Reznick
Displays information obtained thru the Gestalt Mgr.
-
Contact: Paul Reznick
MacIDentify appl 2.3 by Matthias Kahlert
Displays the machine names for the current and other machine IDs.
http://www.donau.de/privhome/kahlert/software/mac_e.htm
Contact: Matthias Kahlert
Tattle-Tech appl by Decision Makers Software, Inc.
Uses Gestalt manager extensively to display all known information.
ftp://ftp.decismkr.com/dms/tattletech2.55.sea.hqx
Contact: John Mancino
TechTool appl 1.0.8 by Micromat Computer Systems
Application to reset PRAM, rebuild DTDB and show Gestalt info.
ftp://<info-mac.org mirror>/cfg/tech-tool-108.hqx
GestaltValue
(by Marco Piovanelli, additions by Rene Ros)
The first time you call NewGestaltValue, the library installs two non-relocatable blocks in the system heap and the 'gval' gestalt selector. One of the blocks is filled with code: it's actually a gestalt definition that implements GestaltValue's shared mechanism. The second block contains the selectors and values GestaltValue manages. The response returned by the 'gval' selector is a pointer to the second non-relocatable block in the system heap.
Dave Radcliffe wrote on 23 March 1993 regarding some information, about the GestalValue glue code, listed with version 1.4 of this list:
"The information on the _GestaltValue trap (0xABF2) is correct based on the
glue, but because of a mistake on my part, the glue should be checking for
0xABF1. A new version of the glue is being distributed on the developer CD
next month..."
The GestaltValue functions are part of System 7.5. and later. If you need to use the GestaltValue calls with your PowerPC native code on System 7.1.2 see the library Jim Luther publishes at: http://members.aol.com/JumpLong/index.html#GestaltValue
The GestaltValue library can be found at:
ftp://<info-mac.org mirror>/dev/gestalt-value-lib.hqx
ftp://ftp.info.euro.apple.com/Apple.Support.Area/Developer_Services/Tool_Chest/OS_Utilities/GestaltValue.sit.hqx
GestaltValue & CodeWarrior Problem
(by Francois Pottier)
The GestaltValue.o library is made up of several routines. The first time someone calls a routine from the library, the library installs itself into the System Heap and uses NSetTrapAddress to set up its own trap. Subsequent calls to the library will just map to a trap call. This allows the code to be loaded only once in memory, even if several INITs use GestaltValue.
What's the problem? In order to install itself into the System Heap, the GestaltValue code must compute how big it is; it does this by subtracting the address of the first routine from the address of a stub routine located after the last real routine. That's common practice. It assumes, however, that the linker will preserve the order of the routines.
But CodeWarrior's "Import MPW library" command does not preserve the order of the functions it finds inside the .o file. As a result, when you call NewGestaltValue for the first time, the library finds its own size to be negative. It asks the Memory Manager for a block of negative size and returns an error (memFullErr, I believe).
Note that this only happens if your software is the first to call GestaltValue since the machine started up. Also, it won't happen under System 7.5 because GestaltValue is part of 7.5. If your program requires 7.5, you probably don't need the GestaltValue.o glue at all.
Glue code
(by Rene Ros, based on THINK Reference 2.0)
These development/compiler software contain glue-code to handle a few selectors even when the Gestalt Manager is not available.
THINK C (5.0 and later)
THINK Pascal (4.0 and later)
MPW (3.2 and later)
The following selectors can be handled by the glue-code, with all others an error (gestaltUndefSelectorErr) will be returned.
gestaltAppleTalkVersion = 'atlk';
gestaltFPUType = 'fpu ';
gestaltKeyboardType = 'kbd ';
gestaltLogicalRAMSize = 'lram';
gestaltMachineType = 'mach';
gestaltMMUType = 'mmu ';
gestaltPhysicalRAMSize = 'ram ';
gestaltProcessorType = 'proc';
gestaltQuickdrawVersion = 'qd ';
gestaltSystemVersion = 'sysv';
gestaltVersion = 'vers';
Unless you are using direct calls, ofcourse.
INITGestalt standard
(by Rene Ros, based on INITGestalt proposal by Jeremy Roussak and Rene Ros)
IMPORTANT NOTE:
We, Jeremy Roussak and Rene Ros, will not work on new versions of this proposed standard. Apart from not having the time to work on it we found that it was not supported sufficiently by the programmers community.
Perhaps because it was not backwards compatible with existing software. Also, we are worried by the yet unknown impact of memory protection of future system versions on the way of 'memory sharing' used by INITGestalt.
The INITGestalt proposal tried to define a standard memory structure which describes the basic information about software. Using the Gestalt call other software obtains a pointer to the structure for software which uses the INITGestalt standard.
Mac OS 8 (Copland)
OBSOLETE
(by Rene Ros, based on Apple Technology World Tour '96 notes and other sources; Microkernel paragraph provided by Anonymous contributor)
Because of the limited implementation of separate address spaces for Copland
or another future system version passing a pointer doesn't work between
server and other applications. Since applications still share the same
address space these are not affected.
Hence passing pointers, and in fact using Gestalt functions at all, is
discouraged for Copland and will break with Gershwin.
With Copland the About This Macintosh will be enhanced to give more
information about the configuration.
To have the new microkernel, implemented by Copland, not depend on the
system registry or Gestalt a system call is provided instead:
enum
{
kSystemInformationVersion = 0
};
typedef struct SystemInformation
{
ItemCount numPhysicalRAMPages;
ByteCount pageSize;
ByteCount dataCacheBlockSize;
UInt32 processorVersionNumber;
UInt32 numCPUs;
ProcessID kernelProcessID;
};
OSStatus GetSystemInformation (PBVersion theVersion,
SystemInformation * theSystemInfo);
Undoubtely Gestalt itself will use this call to return the information
too. For more reading: MicroKernel White Paper
MAC OS X
Carbon will fully support the Gestalt Manager. However, you should not use Gestalt functions to pass pointers to data among applications because each application will reside in its own protected memory space.
You should avoid using the NewGestalt function to add a selector code, which requires moving your selector function into the system heap. You should also avoid using the ReplaceGestalt function to replace an existing selector function, which also requires your replacement function to reside in the system heap. Note that you will not have access to the system heap in Mac OS X as you do in previous versions of the Mac OS.
The functions, structures, and constants of the Gestalt Manager appear in the Gestalt.h interface file (Gestalt.h replaces the older file GestaltEqu.h file) &AD36
NOTE:
For deja-vu reading, see 'Mac OS 8 (Copland)' report above.
Machine Names
(by Rene Ros et al.)
The STR# resource with ID -16395, inside the system file or enabler, contains a list of Macintosh machine names. The selector gestaltMachineType ('mach') returns a value which can be used as the index value with a GetIndString call to get the appropriate machine name. There are some exceptions to this and these are discussed in this report.
On Macintosh Performas (System 7.1), the Machine Name STR# resource will always return the string "Macintosh" (not "Macintosh Performa 450" or "Performa 450"). On all other Macintoshes, the string will return the correct name. (Mark Dawson)
[And] if you do a dirty install [of System 7.5 or later] (right on top of an existing, pre-7.5 System), your machine type and icon will be preserved. If you do a clean install, you'll get the generic name/icon in the Finder's "About This Macintosh..." dialog. (Tim Swihart)
This can be fixed by using the freeware Mac Identifier extension, located at ftp://ftp.fluxsoft.com/.
Or use the WhoAmI? application, which can be found at ftp://<info-mac.org mirror>/cfg/who-am-i-13.hqx. (Rene Ros)
Apple says that in the future ID's will be reused and the kMachineNameStrID will contain only the text ' Macintosh' (two spaces first) &AT01
This policy seems to have changed because the System 7.5 Update enabler installed by System 7.5 Update 1.0 either contains ' Macintosh', ' Macintosh PowerBook' or ' Power Macintosh' (all with two leading spaces). Perhaps the 'mach' selector in the future will be used to indicate the category only. Then we'll get another mechanism/selector to get the real machine type?
Rumour goes a new ROM is developed which allows clone makers to have their machines identified properly. (Rene Ros, with some info from John Mancino)
All system enablers have the machine name resource included to replace the one in the System file. In most cases this resource lists the same Macintosh names as the original one in System 7.1 and adds the names of the machines the enabler is intended for. But some only list the machines the enabler is used with. Therefore, if you want to display the name of a machine which isn't of the current machine type you can't rely on this resource anymore. (Rene Ros)
The Performa 600 was originally planned to ship as Macintosh IIvm but the name was changed because users thought 'vm' meant 'Virtual Memory'. MOST system enablers (i.e. 001, 040, 065 & 201) contain this original name.
The Machine Name resource in the MAE Enabler 1.0 contains the string "MAE 1.0" in these items: 19, 28, 130, 131 and 132.
The PowerPC Enabler 1.1 enabler contains a Machine Name resource which
lists these names:
items 1-66 contain the item number itself except:
12 Power Macintosh 8100/120
31 Paula's Desk Macintosh
39 Workgroup Server 9150
40 Power Macintosh 8100/110
46 Power Macintosh 6100/66
47 Power Macintosh 7100/80
55 Power Macintosh 8100/100
64 Power Macintosh 8100/60
65 Power Macintosh 8100/80
66 Power Macintosh 8100/100
items 67-115 are empty except:
75 Power Macintosh 6100/60
100 Power Macintosh 6100/66
101 Power Macintosh 6100/80
111 Power Macintosh 7100/60
112 Power Macintosh 7100/66
113 Power Macintosh 7100/80
items 116-123 contain the text " Power Macintosh"
"Paula's Desk Macintosh" disappeared again with version 1.1.1 of the PowerPC enabler, it was replaced by the number '31' ! :-)
The duplicate names for some of the Power Macintosh models was resolved and it is now know that some values belong to a never to be released ROM version. See the gestaltMachineType entry for more detailed information.
The PowerBook 5300/190 Enabler now lists the full machine names again!(Eric-Paul Rebel)
The Gestalt.h file for ETO 20 states that all future machine type constant names take the following form:
gestalt<lineName><modelNumber>
For the current lines the linename is one of the following:
Macintosh LC "MacLC"
Macintosh Performa "Performa"
Macintosh PowerBook "PowerBook"
Macintosh PowerBook Duo "PowerBookDuo"
Power Macintosh "PowerMac"
Apple Workgroup Server "AWS"
The modelnumber does not include the clockspeed not minor RAM and harddisk configuration differences reflected in the two rightmost digits of the modelnumber. Hence, both a Performa 6100 and Performa 6115 have the constant name: gestaltPerforma6100.
(Summarised by Rene Ros, based on Gestalt.h file provided by Marco Piovanelli; May 1996)
Macintosh Application Environment
(by Rene Ros, with thanks to Jos van Wezel for providing the workstation and installing the software.)
Using the MAE 1.0 demo version is quite stressful since it expires after eight hours! Copying files to a disk doesn't work also because all you are left with is an file with only the resource map and a few resources. All resources are maintained by MAE. But by using ResEdit it is possible to copy the resources itself one for one to a file on a floppy disk. Under MAE 1.0 these results were found on a SUN SPARCstation 5:
===========================================================================
Summary of Gestalt Selectors installed with MAE 1.0
===========================================================================
Selector Response Remark
---------------------------------------------------------------------------
a/ux 3.0.1
cput 5 MC68040
fpu 0 none
mach 19 which is the LC, but the MAE Enabler only has
'MAE 1.0' in the machine name STR# resource
mmu 0 none
proc 5 MC68040
rom 2048K
romv 1917
snd 0 no sound support, no system beeps to choose from
snhw awac
cith 0 huh?
---------------------------------------------------------------------------
See also a note with the gestaltMachineType ('mach') selector entry.
Macintosh Compatibles
(by Rene Ros, contributions by Jean-Pierre Curcio, Kenneth Knotts and Marc Schrier. Also based on MacWEEK articles and GURU application by Newer Technologies: http://www.newertech.com/ )
So far the clone manufacturers have released computers which hardware is identical, though clockspeed may be different, to other computers released by Apple. This was part of the license agreement. The first compatibles with their own machine IDs are those from Motorola (9/96). This section contains a table of clone model names and the equivalent Apple ID number and constant name.
The Pioneer clone (codename Pioneer MPC-GX1 where MPC stands for Multimedia Personal Computer) was observed at CeBIT '95.
===========================================================================
Clone Machines
===========================================================================
Manufacturer Model Name Apple Hardware Model
ID Constant
---------------------------------------------------------------------------
Akia Corporation (http://www.akia.com/index2.html)
MicroBook
- Power603e/240 ???
- Power603e/240-133 ???
- Power604e/225-133 ???
- Power604e/225 ??? ???
PowerPC 604e225Hz ???
APS Technologies (http://www.apstech.com/mpower.html)
M*Power 603e160 ??? gestaltPowerMac4400?
M*Power 603e200 ??? gestaltPowerMac4400?
M*Power 603e240 ??? gestaltPowerMac4400?
M*Power 604e200 ??? gestaltPowerMac4400?
Assistive Technologies (http://www.assistivetech.com/future.html)
???
DayStar Digital (http://www.daystar.com/)
Genesis LT 400+ 67 gestaltPowerMac9500
Genesis MP 300 67 gestaltPowerMac9500
Genesis MP 360+ 67 gestaltPowerMac9500
Genesis MP 400+ 67 gestaltPowerMac9500
Genesis MP 450 67 gestaltPowerMac9500
Genesis MP 528/132
- w/7500 Logic Board 69 gestaltPowerMac8500
- w/8500 Logic Board 69 gestaltPowerMac8500
- w/9500 Logic Board 69 gestaltPowerMac8500
Genesis MP 600 69 gestaltPowerMac8500
Genesis MP 720+ 69 gestaltPowerMac8500
Genesis MP 800+ 69 gestaltPowerMac8500
Genesis MP 900 69 gestaltPowerMac8500
Hard Disk Cafe
???
Mactell, Inc. (http://www.mactell.com)
???
Marathon Computer (http://www.marathoncomputer.com)
???
Motorola Computer Group (http://www.mot.com/GSS/MCG/starmax/index.html)
Starmax 3000/160 ???
Starmax 3000/180 514 gestaltPowerMac4400?
Starmax 3000/200 ???
Starmax 3000/240 ???
Starmax 4000/160 ???
Starmax 4000/200 ???
Starmax 5000/225 514 gestaltPowerMac4400?
Starmax 5000/250 514 gestaltPowerMac4400?
Starmax 5000/275 514 gestaltPowerMac4400?
Starmax 5000/300 514 gestaltPowerMac4400?
Starmax 5500/200 ???
NUpowr Power PC for PowerBooks 500's
???
Pioneer Electronics (http://www.pioneer.co.jp)
MPC-GX1 100 gestaltPowerMac6100_66
PIOS (http://www.pios.de/uk/)
Keenya 603e/200 ???
Keenya 604e/200 ???
Maxxtrem 603e/200 ???
transAM 603e/200 ???
Power Computing (http://www.powercc.com)
Power 100 55 gestaltPowerMac8100_100
Power 120 12! gestaltPowerMac8100_120
PowerBase 180 ??? Performa 6400?
PowerBase 200 ??? Performa 6400?
PowerBase 240 ??? Performa 6400?
PowerCenter 120 108 gestaltPowerMac7200 @ 120
PowerCenter 132 108 gestaltPowerMac7200 @ 132
PowerCenter 150 108 gestaltPowerMac7200 @ 150
PowerCenter 166 108 gestaltPowerMac7200 @ 166 ?
PowerCenter 180 108 gestaltPowerMac7200 @ 180
PowerCenter Pro 180 108 gestaltPowerMac7200 @ 200?
PowerCenter Pro 210 108 gestaltPowerMac7200 @ 210?
PowerCenter Pro 240 108 gestaltPowerMac7200 @ 240?
PowerCurve 120 108 gestaltPowerMac7200 @ 120
PowerTower 166 108 gestaltPowerMac7200 @ 166
PowerTower 180 108 gestaltPowerMac7200 @ 180
PowerTower 180e 108 gestaltPowerMac7200 @ 180 ?
PowerTower 200e 108 gestaltPowerMac7200 @ 200 ?
PowerTower Pro 180 67 gestaltPowerMac9500 ?
PowerTower Pro 200 67 gestaltPowerMac9500 ?
PowerTower Pro 225 67 gestaltPowerMac9500 ?
PowerTower Pro 225 MP 67 gestaltPowerMac9500 ?
PowerTower Pro 250 67 gestaltPowerMac9500
PowerWave 604/120 67 gestaltPowerMac9500
PowerWave 604/132 67 gestaltPowerMac9500
PowerWave 604/150 67 gestaltPowerMac9500
POWERtools (http://www.pwrtools.com)
Infinity 3160 ???
Infinity 3200 ???
Infinity 3240 ???
Infinity 4200 ???
X-Factor 1 ???
X-Factor 2 ???
Radius
81/110 40 gestaltPowerMac8100_110
System 100 ??? gestaltPowerMac8100??? ?
Umax (http://www.supermac.com)
Apus 3000 58 gestaltPerforma6400
Pulsar 225 67 gestaltPowerMac9500
SuperMac C500/140 ???
SuperMac C500/160 ???
SuperMac C500/180 ???
SuperMac C600/180 ???
SuperMac C600/200 ???
SuperMac C600/240 ???
SuperMac J700/150 67 gestaltPowerMac9500
SuperMac J700/180 67 gestaltPowerMac9500
SuperMac S900/150 67 gestaltPowerMac9500
SuperMac S900/180 67 gestaltPowerMac9500
SuperMac S900/200 67 gestaltPowerMac9500
SuperMac S900/225 67 gestaltPowerMac9500
SuperMac S900/233 67 gestaltPowerMac9500
SuperMac S900/250 67 gestaltPowerMac9500
SuperMac S900DP/180 67 gestaltPowerMac9500
SuperMac S900DP/200 67 gestaltPowerMac9500
SuperMac S900DP/250 67 gestaltPowerMac9500
Vertegri Research (http://www.vertegri.com)
QuickTower E2 ???
imediaEngine V3 ???
imediaEngine V5 ???
imediaEngine V7 ???
---------------------------------------------------------------------------
! value not belonging to any by Apple released computer
---------------------------------------------------------------------------
Manufacturer Identification
(by Rich Kubota, Apple Computer)
There are two selectors to identify the hardware and software manufacturer of the computer. These selectors, 'hrad' and 'srad' respectively, are at least available since system 7.5.3.
The selector 'hrad' is for hardware identification purposes. An Apple machine should identify itself as 'Appl'. An undefined selector error should be interpreted as 'Appl', anything else is a clone. For example, a Power Computing machine should return 'pcc '. An exception to this is licensee systems built using Apple motherboards: there's no way to identify them.
The selector 'srad' is for software identification purposes. It identifies software by who sold the software and is mainly for customer support use. Software sold with a licensee computer is always identified as sold by the licensee. But, if for example, a licensee customer goes out and buys a shrinkwrap version of the MacOS, then the software was purchased from Apple and will be supported by Apple.
Typical responses are 'Appl' for Apple and 'Lcns' for licensees, although in the latter case, licensees are allowed to customize it further with their own identifier.
The system software should set the selector, although that hasn't been done consistently because of some bugs. For newer machines, the selectors may be set by the "Mac OS Licensing Extension" which only ships on clone machines and is used to handle some licensing specific stuff. (Oct. 96)
Modern Memory Manager
(by John W. Baxter and Eric Schlegel)
The Universal Headers from Apple have a revised Memory Manager heap zone header and named constants, which provide a documented methode of detecting the Modern Memory Manager. It is as yet unknown whether the kNewDebugHeap flag set implies kNewStyleHeap set. The code here does not assume so...but some might wish to test each flag in its own function.
Boolean IsModernMemory (void) {
THz myZone = GetZone ();
return (myZone->heapType & (kNewStyleHeap | kNewDebugHeap)) != 0;
}
If you use older headers, replace the return statement with this line:
return (0 != ((*myZone).maxNRel & 0x0600));
The new headers have the heapType field as a Byte (followed by a Byte filler), together replacing the maxNRel short. The bits in it are defined by these masks:
enum {
/* masks for Zone->heapType field */
k32BitHeap = 1, /* valid in all Memory Managers */
kNewStyleHeap = 2, /* true if new Heap Manager is present */
kNewDebugHeap = 4 /* true if new Heap Manager is running in debug
mode on this heap */
};
PPC Libraries
(based on a posting by John Baxter in the comp.sys.mac.programmer Usenet newsgroup on Internet.)
Some of the Gestalt selector functions are smart enough to avoid crashing when the user removed the library file from the Extensions folder without restarting the machine. And some selector functions aren't that smart.
Safest is to preflight the first call you make into the library (for code or data) or include a preflight in your startup.
QuickTime
(by Michael Hecht, additions by Rene Ros)
If you install QuickTime under System 6, a major portion of the Alias Manager and FSSpec support is also added. But, QT doesn't implement the Gestalt selectors because the implementation is not complete. You must check for either Alias Mgr or QuickTime.
These are the limitations for the Alias Mgr installed by QuickTime:
- NewAlias will accept fromFile parameter, but it never creates a
relative alias.
- NewAliasMinimalFromPath and ResolveAliasFile aren't available.
- ResolveAlias and UpdateAlias ignore the fromFile parameter.
- MatchAlias may be called but the kARMMultVols, kARMSearchMore and kARMSearchRelFirst flags aren't available and ignored if passed. Also, a matchProc will never be called.
- Won't mount network volumes.
And these are the FSSpec calls available with System 6 when QuickTime is installed:
- FSMakeFSSpec
- FSpOpenDF
- FSpOpenRF
- FSpCreate
- FSpDirCreate
- FSpDelete
- FSpGetFInfo
- FSpSetFInfo
- FSpSetFLock
- FSpRstLock
- FSpRename
- FSpCatMove
- FSpOpenResFile
- FSpCreateResFile
- FSpGetCatInfo
See for more information Technical Note M.QT.MovieTB.Q&As (QT 510) and D e v e l o p 11 magazine on page 122.
RAM Doubler
(by anonymous contributor and Rene Ros)
RAM Doubler implements virtual memory in a different way than the normal Apple VM mechanism. It looks like this is done in corporation with Apple since a selector installed by RAM Doubler is 'vmem' which is all lower-case and thus reserved by Apple.
In addition the response from this selector is always (long)'RaM2' which is the creator type of RAM Doubler. It seems this selector is used to indicate which software is used to extend the capabilities of the Virtual Memory Manager.
RAM Doubler also installs the selector 'vmFn' which seems to be a pointer to a function to control RAMDoubler (1.0?) or to obtain information. It looks like registers are used to pass parameters to and from that function. D0 perhaps holds values 1 to 6 as input and perhaps A0 is used for the return value.
pascal OSErr VMExtensionControl? (UInt16 selector, UInt32 *result)
Registers on entry D0: selector code
Registers on exit A0: result code
D0: error code
Result codes
noErr 0 No error
invalidSelector? 206 Invalid selector value?
???
Values used as selector:
enum {
kVMControlType? = 1, /* type VM extension: RaM2 */
kVMControlVersion? = 2, /* version VM extension as BCD */
kVMControl??? = 3, /* engine version as BCD?: 0x0313 */
kVMControlMemSize? = 4, /* unknown: Get/SetMemorySize? */
kVMControlMemSize? = 5, /* unknown: Get/SetMemorySize? */
kVMControl??? = 6, /* unknown */
kVMContolMaxFunctions? = MAXINT}; /* returns number of valid
selectors, or any other value
outside the current 1-6
range */
Remember: all this is heresay!!!
Because of all this you can imagine RAM Doubler replaces/installs the following System Software selectors (and I think it does): lram, pgsz, ram , vm , vmbs.
Relabled Macintosh Models
(by Rene Ros and other contributing readers; Originally based on the Mac Models List by J.D. Sterling Babcock. Since Summer 1995 based on MacFacts and Apple Specs by Apple Computer Inc.)
The Performa models usually (there are some exceptions) return a machine ID# for the model they are based on. The table below lists several models which are simply relabled and the hardware model they are based on.
===========================================================================
Relabled Machines
===========================================================================
Relabled Model Hardware Model Note
Name Constant
---------------------------------------------------------------------------
Macintosh ED gestaltMacPlus sold in Netherlands?,
512K with Mac SE case
color
Macintosh LC III+ gestaltPerforma460 33 MHz LC III ?
Macintosh SE FDHD gestaltMacSE
Performa 200 gestaltClassicII
Performa 250 gestaltMacColorClassic sold in Australia and
Britain
Performa 275 gestaltMacColorClassicII?
Performa 400 gestaltMacLCII
Performa 405 gestaltMacLCII
Performa 410 gestaltMacLCII
Performa 430 gestaltMacLCII
Performa 450 gestaltMacLCIII
Performa 460 not relabeled, own ID
Performa 466 gestaltPerforma460
Performa 467 gestaltPerforma460
Performa 475 gestaltMacLC475
Performa 476 gestaltMacLC475
Performa 520 gestaltMacLC520
Performa 550 gestaltMacLC550
Performa 560 gestaltMacLC550
Performa 575 gestaltMacLC575
Performa 577 gestaltMacLC575
Performa 578 gestaltMacLC575
Performa 580 gestaltMacLC580
Performa 588 gestaltMacLC580
Performa 600 not relabeled, own ID
Performa 630 gestaltMac630
Performa 631 gestaltMac630
Performa 635 gestaltMac630
Performa 636 gestaltMac630
Performa 637 gestaltMac630
Performa 638 gestaltMac630
Performa 640 gestaltMac630
Performa 5200 gestaltPowerMac5200
Performa 5210 gestaltPowerMac5200
Performa 5215 gestaltPowerMac5200
Performa 5220 gestaltPowerMac5200
Performa 5260 gestaltPowerMac5200
Performa 5270 gestaltPowerMac5200
Performa 5280 gestaltPowerMac5200
Performa 5300 gestaltPowerMac5200
Performa 5320 gestaltPowerMac5200
Performa 5400 gestaltPowerMac5400
Performa 5410 gestaltPowerMac5400 only released in Japan?
Performa 5420 gestaltPowerMac5400 only released in Japan?
Performa 5430 gestaltPowerMac5400 outside the US
Performa 5440 gestaltPowerMac5400 outside the US
Performa 6110 gestaltPowerMac6100_60
Performa 6112 gestaltPowerMac6100_60
Performa 6115 gestaltPowerMac6100_60
Performa 6116 gestaltPowerMac6100_60
Performa 6117 gestaltPowerMac6100_60
Performa 6118 gestaltPowerMac6100_60
Performa 6200 gestaltPowerMac6200
Performa 6205 gestaltPowerMac6200
Performa 6210 gestaltPowerMac6200
Performa 6214 gestaltPowerMac6200
Performa 6216 gestaltPowerMac6200
Performa 6218 gestaltPowerMac6200
Performa 6220 gestaltPowerMac6200
Performa 6230 gestaltPowerMac6200
Performa 6260 gestaltPowerMac6200
Performa 6290 gestaltPowerMac6200
Performa 6300 gestaltPowerMac6200
Performa 6310 gestaltPowerMac6200
Performa 6320 gestaltPowerMac6200
Performa 6360 gestaltPerforma6400
Performa 6400 not relabeled, own ID
Performa 6410 gestaltPerforma6400
Performa 6420 gestaltPerforma6400
Power Macintosh 7220 gestaltPowerMac4400 Renamed for Asia/
Pacific area because:
'among the more
superstitious members
of Chinese
communities, the
number "44" is
believed to bring bad
luck and may even
carry connotations of
impending death'
Quadra 660AV gestaltMacCentris660AV
Workgroup Server 60 gestaltMacCentris610
Workgroup Server 80 gestaltMacQuadra800
Workgroup Server 95 gestaltQuadra950
Workgroup Server 95+ gestaltQuadra950
Workgroup Server 6150 gestaltPowerMac6100_60
Workgroup Server 7250 gestaltPowerMac7200 @ 120 MHz
Workgroup Server 7350 gestaltPowerMac7300
Workgroup Server 8150 gestaltPowerMac8100_110
Workgroup Server 8550 gestaltPowerMac8500 @ 132 or 200 MHz
Workgroup Server 9150 gestaltPowerMac9150
Workgroup Server 9650 gestaltPowerMac9600
---------------------------------------------------------------------------
