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microwatt
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Commit Graph

8 Commits (8c5dcc8c4c3c5e6b7d4e23b869dd404e271311c6)

Author SHA1 Message Date
Anton Blanchard 8c5dcc8c4c Fix ghdl error 
I'm seeing an issue on my version of ghdl:

  core.vhdl:137:24:error: actual expression must be globally static

Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
 5 years ago
Benjamin Herrenschmidt 98f0994698 Add core debug module 
This module adds some simple core controls:

  reset, stop, start, step

along with icache clear and reading the NIA and core
status bits

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org
 5 years ago
Anton Blanchard 89849a6856 Add a simple direct mapped icache 
Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
 5 years ago
Anton Blanchard 4528ef2b43 Reformat core.vhdl 5 years ago
Anton Blanchard 92a7152370 Rework pipeline, add stall and flush signals 
This adds stall and flush signals to the pipeline.

Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
 5 years ago
Benjamin Herrenschmidt c97b080d8c Move wishbone arbiter out of the core 
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
 5 years ago
Anton Blanchard 147b259691 Use a better input signal in writeback 
w_in comes from the execution unit, it makes more sense to call
it e_in.

Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
 5 years ago
Anton Blanchard 5a29cb4699 Initial import of microwatt 
Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
 5 years ago