Before I jump off and re-invent the wheel -- is there a boost library
to help with manipulating hardware registers?
What I'm hoping to come up with (somehow) is something like:
class dev_registers {
reg reg0;
bit b0;
bit b1;
reg reg1;
bit b3;
bit b4;
};
(The 0 and 1 are bit offsets. Integer masks like 0x0010 would work
as well)
The result would be a private members of type uint32_t called reg0,
and reg1 (actually they can be called anything since they are
private). And a set of public methods to set, clear, and test the
bits. e.g.
dev_registers sample;
sample.b0.set();
sample.b3.clr();
It would be nice if the registers had a global clr like:
sample.reg0.clr();
There are lots of alternative approaches like:
sample.b0.assign(true); // set b0 to true (1)
int val = sample.b0(); // test value of b0
The goal has a lot of constraints. The registers would need to be
laid out properly without any extra overhead (assuming that I do not
bump into normal C padding problems). It would also be nice if
everything inline'd so the compiler could optimize things down to
simple bit operations.
Does boost have anything like that? I looked for "bit" and only
found references to bitset. I also looked for "hardware" and "flag"
and did not see anything.
Thanks,
Perry
