1-2
Overview
AMD-K5 Processor Technical Reference Manual
18524C/0—Nov1996
1.1
Features
■
Pentium-Processor Standard
•
Compatible with the Pentium (735\90, 815\100)
processor 296-pin socket
•
Compatible with existing Pentium (735\90, 815\100)
processor support infrastructure and system designs
•
Compatible with Pentium, 486, and 386 processor soft-
ware
•
Compatible with x86 DOS, Microsoft
®
Windows
®
operat-
ing system, and the large installed base of x86 software
•
Compatible with IEEE 854 floating-point standard
•
Selectable bus frequencies
•
Support for multiprocessing
■
High-Performance Execution
•
Six execution units (two ALUs, two load/store, one
branch, one floating-point)
•
Up to four instructions issued per processor clock
•
Out-of-order issue and completion
•
Speculative execution along three predicted branches
•
Register renaming
•
Data forwarding
•
Predecoder converts x86 instructions to single-cycle
RISC operations (ROPs)
•
Fast integer multiply (4-cycle, fully pipelined)
•
Five-stage pipeline
•
Single-cycle cache access
•
Zero-delay branching, 3-clock misprediction penalty (of-
ten hidden)
•
No mixed-operand-size penalty
•
No prefix penalty
•
Single-cycle misalignment penalty
•
No instruction-pairing requirements for parallel issue
•
No pipeline invalidation on segment loads
•
Efficient support for 16- and 32-bit code, with mixed op-
erand sizes
Summary of Contents for AMD-K5
Page 1: ...AMD K5 Processor Technical Reference Manual TM...
Page 10: ...x AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...
Page 24: ...1 4 Overview AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...
Page 54: ...2 30 Internal Architecture AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...
Page 116: ...4 26 Performance AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...
Page 356: ...6 44 System Design AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...
Page 380: ...7 24 Test and Debug AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...
Page 396: ...A 16 AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...
Page 406: ...I 10 Index AMD K5 Processor Technical Reference Manual 18524C 0 Nov1996...