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Connectix Speed Doubler 1.3.2

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[www].se [ftp].se [mirror].us
speed_doubler-image.zip (157.79 KB)
For System 7.0 - 7.6
Emulation
Guides on emulating older applications

Speed Doubler includes three extensions: Speed Emulator (PowerPC only), Speed Access, and Speed Copy. The package is supposed to double the speed of 680x0 Emulation for Power Macs, speed disk access on all Macs, and improve Finder functions on all Macs. The installer insists that it is run from the master floppy disk; in practice any floppy disk will do. The download is a Disk Copy 4.2 image compressed with MacZip (use the same to uncompress).

Compatibility
Architecture: 68k PPC

This version fixes a problem so that it will work with Mac OS 7.6.

Comments

by mrdav - 2012, January 27 - 10:58am

I have tried to work out how to patch the installer so that it does not require a floppy disk to run from. Unfortunately the authors of the software have defeated me. I can see where to make the patch when using MacsBug; it is at a similar location in Code 2 that occurs in the sister product RamDoubler. However the authors have been tricky this time...they have used self-modifying code whereby Code 5 modifies the original Code 2 resource in memory, and then they execute the modified Code 2. The modification is too complex for me to unravel and work out what to change in the original Code 2 resource to achieve the patch. I don't know why the authors went to this amount of trouble when the software can be copied to another floppy disk and will still work.