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Commit Graph

157 Commits (d3fb2639dd375fb65a3cce20e44fba2bf28b443d)

Author SHA1 Message Date
Anton Blanchard b9e28598b4 Explicitly check against '1' in if statements 
nvc doesn't like what I think is a VHDL 2008 construct. Lets just
check against '1' explicitly.

Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
 5 years ago
Anton Blanchard a2df2a10a2 Remove sim console 
We can force all existing code to use the UART console
by passing 0 in bit zero of the sim config register.

Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
 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
Anton Blanchard 9687034d78 Add a decode bit to mark an instruction as single through the pipeline 
This is used by the pipelining patches. Mark everyone as single through
the pipeline to start.

Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
 5 years ago
Benjamin Herrenschmidt b0ade2857f decode1 array fix header 
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
 5 years ago
Anton Blanchard 9fbaea6f08 Rework CR file and add forwarding 
Handle the CR as a single field with per nibble enables. Forward any
writes in the same cycle.

If this proves to be an issue for timing, we may want to revisit
this in the future. For now, it keeps things simple.

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