Commit Graph

7 Commits (2083bc3ed0302c9c9a4866b6dc86b7d4496abcd5)

Author SHA1 Message Date
Anton Blanchard ace41e5153 ASIC: Reduce multiplier from 4 to 2 cycles
Our sky130 gate level multiply/adder now makes timing with a single
register stage.

Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
3 years ago
Anton Blanchard 907c833521 Move register stage back after the RAM
The 512x64 DFFRAM has quite big hold violations that we can hopefully
work around by removing the register stage before the RAM.

Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
3 years ago
Anton Blanchard 606359cce3 Add simplebus
Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
3 years ago
Anton Blanchard 49b332e17f Hook up JTAG to ASIC top level
Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
3 years ago
Anton Blanchard c2577b5446 Add ASIC target
Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
3 years ago
Anton Blanchard 5249d633cf Move register stage from after RAM to before RAM
Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
3 years ago
Anton Blanchard 8ecb30da05 Add arrays for ASIC flow
Add VHDL wrappers and verilog behaviourals for the cache_ram,
register_file and main_bram arrays.

Signed-off-by: Anton Blanchard <anton@linux.ibm.com>
3 years ago