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8086ed's Introduction

8086eD - x86 Emulator, written in D

This is self-made x86 interpreter, written in D language.

Supported features:

  • All NEC v20 instructions(unless I missed an instruction(s))
  • 1MB RAM (640KB usable)
  • Text modes 7 and 3(now with colours)
  • VRI format for loading ROM images(the file format itself is extremely basic and very convenient to use)
  • Periodic timer(IRQ 8)
  • Keyboard
  • SFML window(720x400)
  • (A rather advanced) Debugger
  • Uses the Super PC/Turbo XT BIOS 3.1 with very small changes(added HLT instruction in keyboard loop for energy saving)
  • Fully working IVT

The emulator is planned to support at least the 486 instruction set

Instruction set implementation steps:

  • Intel 8086 instructions set
  • NEC v20 instruction set
  • Intel 286 Protected Mode
  • 32-bit Intel 386 instruction set(w/o Protected mode and Paging)
  • 32-bit Protected Mode with Paging
  • Intel 486 instructions set
  • Intel 486 instructions set with CPUID and CMPXCHG8B
  • Intel Pentium instruction set possibly?

Incomplete features:

  • Fully implemented PIC
  • Fully implemented PIT
  • DMA and etc.
  • Graphics modes
  • Harddrive and booting from it
  • Full decoding of the instructions in the debugger

8086ed's People

Contributors

naydef avatar

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