OS

Generates OS code for test execution. Produces barrier synchronization, test pass/fail handling, and utility functions for discrete test coordination. Manages shared and per-hart OS variables.

Configuration

  • linux_mode: Enable Linux OS mode

  • num_cpus: Number of harts (enables multiprocessor variables)

  • xlen: Register width (32 or 64 bits)

  • excp_hooks: Enable pre/post exception handler hooks

  • wysiwyg: Minimal OS with only tohost/fromhost

  • fe_tb: Frontend testbench mode

  • eot_pass_value: Value to write to tohost on test pass

  • eot_fail_value: Value to write to tohost on test fail

  • big_endian: Enable big-endian mode for tohost writes