PPMC750FX IBM PowerPC®750FX RISC微处理器

The IBM PowerPC® 750FX RISC Microprocessor is a 32-bit implementation of the IBM PowerPC family of reduced instruction set computer (RISC) microprocessors. This document contains pertinent physical and electrical characteristics of the IBM PowerPC 750FX RISC Microprocessor Revision DD 2.X Single Chip Modules (SCM). The IBM PowerPC 750FX RISC Microprocessor is also referred to as the 750FX throughout this document.

This section summarizes the features of the 750FX implementation of the PowerPC Architecture™. Major features of the 750FX include the following:
• Branch processing unit
– Four instructions fetched per clock
– One branch processed per cycle (plus resolving two speculations)
– Up to one speculative stream in execution, one additional speculative stream in fetch
– 512-entry branch history table (BHT) for dynamic prediction
– 64-entry, 4-way set associative branch target instruction cache (BTIC) for eliminating branch delay slots