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Programming in Real-Address Mode

  • Sen-Cuo Ro
  • Sheau-Chuen Her
  • Rajvir Singh

Abstract

The i386/i486 system operates in the real-address mode when the processor emulates the execution of the 8086/88 processor. In this mode, the i386/i486 processor provides more instructions and extension registers (32-bit registers), which makes it the superset of the 8086/88 processor. The emulation consists of environment emulation and instruction execution emulation. This chapter explains how the i386/i486 processor performs this emulation.

Keywords

Segment Register Segment Address Advance Program Base Address Protected Mode 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Van Nostrand Reinhold 1993

Authors and Affiliations

  • Sen-Cuo Ro
    • 1
  • Sheau-Chuen Her
    • 1
  • Rajvir Singh
    • 2
  1. 1.Nexgen MicrosystemsUSA
  2. 2.Automata Publishing CompanySan JoseUSA

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