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joevt's latest activity

  • J
    joevt replied to the thread Gray NDRV solution!.
    CODE resources are handled by the Segment Manager. Mac OS X PPC or Rosetta can use PEF apps in user space (Carbon apps). In kernel...
  • J
    joevt replied to the thread Gray NDRV solution!.
    PEF is not a thing in Mac OS X except for the ndrv for a GPU used in a IONDRVFramebuffer (subclass of IOFramebuffer) kernel extension...
  • J
    joevt replied to the thread Gray NDRV solution!.
    In Mac OS 9, the Code Fragment Manager handles PEFs which are shared libraries. In Mac OS X, there's a PEF loader in IOGraphicsFamily...
  • J
    joevt replied to the thread eMate Replacement Power Adapter/Battery.
    I don't understand this. Power is Voltage x Current. Current is Voltage ÷ Resistance. A power supply controls voltage. The load...
  • J
    joevt replied to the thread Macintosh 68060 Redux.
    ROM Maps at https://github.com/joevt/68k-mac-rom-maps ROM Fiend at https://github.com/joevt/rom_fiend uses the ROM Maps but also dumps...
  • J
    joevt replied to the thread Does anyone have a 667MHz or 800MHz Powerbook G4?.
    I don't know if telnet can be used before probe-all? probe-all is when the fcode of the graphics cards are loaded. Do an nvram script...
  • J
    joevt replied to the thread Mac SE Clock Drift.
    Is there a relation between the amount of time the machine is off, and the amount of time that the clock is behind by? Is the amount of...
  • J
    joevt replied to the thread Gray NDRV solution!.
    With the resource fork intact, the tbxi dump command will include in the dump a "SysEnabler" file which may include an optional PEF in...
  • J
    joevt replied to the thread Gray NDRV solution!.
    I updated my fork with your changes. See my last commit notes.
  • J
    joevt replied to the thread Apple prototype ROM flasher utility.
    Emulation and info regarding "Flasher (TNT 0.6)"...
  • J
    joevt replied to the thread My Mad B&W G3 Setup!.
    Read the chip first in your programmer and compare with a ROM dump from Open Firmware. This will verify the address and data lines are...
  • J
    joevt replied to the thread Can a Macintosh use non-contiguous RAM?.
    Not so interesting. The CPU can only know a few virtual -> physical translations at one time and DingusPPC can only output those. It's...
  • J
    joevt replied to the thread Gray NDRV solution!.
    You can try finding Apple's NDRV sample code "GDX 950717". Search for it on an older Apple Developer CD. Dev.CD/Development...
  • J
    joevt replied to the thread Gray NDRV solution!.
    Gray screen is used for display color depth transitions so that you don't get weird colors during the transition. The CLUT/gamma table...
  • J
    joevt replied to the thread Can a Macintosh use non-contiguous RAM?.
    I think a Power Mac 6100 with 64+64+8 MB of RAM has discontiguous physical RAM addresses (in DingusPPC at least). It has a MMU though. I...
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