7 Commits (b1424e859e878a881dc4525c1b5da5c9f692aa3f)

Author	SHA1	Message	Date
Tristan Gingold	0169d48ee6	Fix register file size (there are 32 gprs).	5 years ago
Benjamin Herrenschmidt	ec1868f7d2	register_file: Move GPRs into distributed RAM ... The register file is currently implemented as a whole pile of individual 1-bit registers instead of LUT memory which is a huge waste of FPGA space. This is caused by the output signal exposing the register file to the outside world for simulation debug. This removes that output, and moves the dumping of the register file to the register file module itself. This saves about 8% of fpga on the little Arty A7-35T. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>	5 years ago
Anton Blanchard	4d9b2a1165	Reformat register file ... Signed-off-by: Anton Blanchard <anton@linux.ibm.com>	5 years ago
Anton Blanchard	79a14c8e37	Add forwarding in the register file ... We need this for the upcoming pipelining patches. Signed-off-by: Anton Blanchard <anton@linux.ibm.com>	5 years ago
Anton Blanchard	31a6fb6ef5	More second write port removal ... I missed the register file updates for the second write port removal. Signed-off-by: Anton Blanchard <anton@linux.ibm.com>	5 years ago
Anton Blanchard	04eb9583e6	Clean up register read debug output ... Right now we continually print all 3 possible GPRs an instruction may be using. Add signals so we only print GPRs when they are actually read. This should hopefully optimise away when synthesized. 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