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| How Can A Mac x86 Keep Compatablity With PowerPc Software ?
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Octo-core Atom @ 233GHz (ES)
   
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By emulation. The same way the raw ROM code from an arcade machine can run perfectly on a PC under the MAME games emulator. A piece of software traps the instructions from the native program and converts them on the fly to instructions the host system can interpret.
Classic PCs Original IBM PC (4.77MHz 8088, 256KB RAM, monochrome) · Original IBM PC XT (4.77MHz 8088, 512KB, 10MB HDD, monochrome) · Original Compaq Deskpro (7.14MHz 8086, 640KB, 20MB HDD, CGA graphics)
Home Computers Commodore VIC-20 · C64 original · C64 Terminator edition · C16 · Amiga 500 · Amiga 600 · Amiga 600 HD · Amiga 1200 Acorn Electron · A3010 (Archimedes) · A4000 (Archimedes) Others Sinclair ZX Spectrum 48K · Dragon 32
Consoles Nintendo Wii · GameCube purple (x 2) · GameCube black · N64 black (x 2) · N64 clear blue · SNES (x 2) · NES (x 2) · DS silver (x 3) · GBA SP silver · GBA purple · GBA clear · Game Boy Color clear · Game Boy Sega Dreamcast x 3 · Saturn · Mega Drive II · Mega Drive · Master System Atari 10-in-1 · Jaguar (x 2) · 7800 · 2600 wood-grain Microsoft Xbox 360 · Xbox Others Mattel Intellivision · MB Vectrex · GoldStar 3DO · Sony PlayStation (original)
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186
   
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Thanks for Replys and Link This Rosetta must be very powerful bit of software, Mame is based on old arcade hardware and ppc mac are quite powerful I just cant quite understand? does this meen a X86 pc (windows) could emulate a ppc mac/Amiga at near full speed or is it because it relys on mac hardware and the emulation is only the cpu .Is there visable loss of speed to the mac user in the emulation?it says it runs at 80%
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Octo-core Atom @ 233GHz (ES)
   
Group: Moderators
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Yes, heavy stuff like Photoshop can suffer up to a 50% drop in performance (but it's often much less than that).
Classic PCs Original IBM PC (4.77MHz 8088, 256KB RAM, monochrome) · Original IBM PC XT (4.77MHz 8088, 512KB, 10MB HDD, monochrome) · Original Compaq Deskpro (7.14MHz 8086, 640KB, 20MB HDD, CGA graphics)
Home Computers Commodore VIC-20 · C64 original · C64 Terminator edition · C16 · Amiga 500 · Amiga 600 · Amiga 600 HD · Amiga 1200 Acorn Electron · A3010 (Archimedes) · A4000 (Archimedes) Others Sinclair ZX Spectrum 48K · Dragon 32
Consoles Nintendo Wii · GameCube purple (x 2) · GameCube black · N64 black (x 2) · N64 clear blue · SNES (x 2) · NES (x 2) · DS silver (x 3) · GBA SP silver · GBA purple · GBA clear · Game Boy Color clear · Game Boy Sega Dreamcast x 3 · Saturn · Mega Drive II · Mega Drive · Master System Atari 10-in-1 · Jaguar (x 2) · 7800 · 2600 wood-grain Microsoft Xbox 360 · Xbox Others Mattel Intellivision · MB Vectrex · GoldStar 3DO · Sony PlayStation (original)
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