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IBM is readying an enhanced x86 emulator for the PowerPC version of OS/2 that could provide users with Windows performance comparable to a 60-MHz Pentium.
When OS/2 for the PowerPC ships, it will come with an emulator based on "PC Sim," the x86 emulator that IBM uses for its AIX operating system.
When running OS/2 on the 604 PowerPC (both products are expected to ship at roughly the same time and are scheduled to appear by the end of the year), users will see Windows 3.1 applications running as fast as they would on a 60-MHz Pentium, according to IBM and Motorola Inc. officials.
OS/2 for the PowerPC will use an instruction-set translator similar to what …