Adding a no-argument fire() to DecoupledHelper that doesn't exclude anything. The previous way of doing this, which was fire(false.B), was broken by the previous change of requiring all excluded to be included, and forced a further hack of adding a dummy value. Since excluding false.B was a hack in itself, this avoids the issue entirely by providing a straightforward and safe way of excluding nothing.

Improve generated run-* recipes

Or reduce failures and print more failure causes.

Custom CSR enhancements

The reset value is conservative (don't clock gate).

There was a flaw in the spec and the current proposed fix is https://github.com/riscv/riscv-isa-manual/commit/cb4515bbd59218e23088c6fff0343dada1f4fa8e

D$ improvements

This gets rid of a critical path.

riscv-openocd: fix mpsse_flush issue

Periphery bus atomics for multiple masters

They have no semantic value, but supporting and ignoring them reduces
the corner-case-handling burden on RegMapper users.

Meant to address, https://github.com/freechipsproject/rocket-chip/issues/1616, written by Jack. Also helps to catch other errors that are made when using DecoupledHelper.

Don't hold the bus so aggressively on LR instructions

* add rotateLeft functions for UInts

* add rotateRight function for Sequences