Agner`s CPU blog

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Now on Github
Author: Agner Date: 2016-06-26 03:01
I have now moved this project to Github as some of you recommended. This will facilitate the collective development of software toolchain and hardware implementation.

The name CRISC was taken, so I have changed the name to ForwardCom. It stands for forward compatible computer system.

I have converted the manual to LaTex so that Github can show diffs. The pdf manual is built from many tex files. The pdf manual version 1.02 is here.

New in version 1.02:

  • Security features added.
  • Support for dual stack.
  • Some instructions and formats modified, including more formats for jump and call instructions.
  • System call, system return and trap instructions added.
  • New addressing mode for arrays with bounds checking.
  • Memory management and ABI standards described in more detail.
  • Instruction list in comma separated file instruction_list.csv to be used by assemblers, emulators, debuggers, etc.
  • Object file format defined in file elf_forwardcom.h

This thread has become so long that I have started a new thread here.

 
thread Proposal for an ideal extensible instruction set new - Agner - 2015-12-27
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last reply Now on Github - Agner - 2016-06-26