Refer to Table 56-1 on page 1322. From a software perspective, the Pentium® 4 processor is the sum of all of the IA32 software architectural features that have been introduced since the 386 processor.
Table 56-1. The Elements of the Software Architecture
|The instruction set||The IA32 instruction set has grown over the years. A description of the instructions (in order of introduction) can be found in:
The 386 instruction set can be found in “Instruction Set Evolution” on page 115 on the CD.
The 486 instruction set additions and/or changes are described in “Instruction Set Changes” on page 456.
The Pentium® instruction set additions and/or changes are described in “Instruction Set Changes” on page 517.
The Pentium® Pro ...