AMD AM486
Am486 is a trademark of Advanced Micro Devices, Inc.FEATURES
1.1GENERAL DESCRIPTION
. . . . . . . . . . . . . . . . . . . ..................... 1-1 1.2 Distinctive Characteristics ............. "'................... . ... 1-1 1.3 Pin Descriptions . . ............... . .................... 1-3 Am486DX/DX2 Architectural Overview 2.1 Introduction ................. ......... . . . . . . . . . . . . . .. . ...... 2-1 2.2 Register Set ..... . ................................................ 2-2 2.2.1 Base Architecture Registers.. . . .. . .. " .................. 2-2 2.2.2 System Level Registers ...................................... 2-8 2.2.3 Floating-Point Registers ..................................... 2-14 2.2.4 Debug and Test Registers ............ . ..................... 2-21 2.2.5 Register Accessibility. . . . . . . . . . . . . . . .. . ..................... 2-21 2.2.6 Compatibility With Future Processors ......................... 2-21 2.3 Instruction Set ...... . ........................................... 2-21 2.4 Memory Organization .............................................