- Add required signals to top-level
- Propagate error through fetch stages
- Add new exception type
- Update documentation for new exception type
- Resolves issue #109
This adds a Verilator simulation of Ibex for use in RISC-V Compliance
Testing. In addition to ibex itself, the simulation contains a RAM and
a memory-mapped helper module for the test software to interact with the
outside world. The test framework uses this to dump a "test signature",
which is written to a certain part of the memory, and to end the
simulation. (In the future, this could be extended to include printf()
like functionality.)
This change is slighly painful, but a necessary cleanup around the
tracer.
- We now provide a separate core file for the tracer, called
"ibex_tracer.core" (in line with "ibex_tracer.sv"). The core is called
"lowrisc:ibex:ibex_tracer".
- The toplevel wrapper with tracing enabled got renamed to
"ibex_core_tracing.sv", and the core file is correspondingly called
"ibex_core_tracing.core. The core in it is called
"lowrisc:ibex:ibex_core_tracing".
- Finally to keep symmetry, the toplevel of Ibex itself got renamed in
the core file from "lowrisc:ibex:ibex" to "lowrisc:ibex:ibex_core".
This ensures that we have the same name for the core file, the source
entry point, and the core name.
IMPORTANT NOTE:
If you apply this change and use fusesoc, you need to adjust the name of
the core dependency from "lowrisc:ibex:ibex" to
"lowrisc:ibex:ibex_core".
* Remove all local patches
* Update google_riscv-dv to 00739df
Update code from upstream repository https://github.com/google/riscv-
dv to revision 00739df0ec744986934097bebcde3ebf5a4fdf81
* Merge pull request #30 from google/dev (taoliug)
* Fix LSF options (Tao Liu)
* Refactoring to make extension easier (Tao Liu)
* Merge pull request #29 from google/dev (taoliug)
* Add a sample program (Tao Liu)
* Merge pull request #28 from google/dev (taoliug)
* Move riscv_core_setting to a separate folder (Tao Liu)
* Merge pull request #27 from google/dev (taoliug)
* Add ebreak/wfi test, more regression control (Tao Liu)
* Merge pull request #26 from google/dev (taoliug)
* Add support for GPR based comparison (Tao Liu)
* Add ibex extensions for riscv_dv
