On 09/04/2015 11:04, Peter Maydell wrote: > We discussed this last time round, I think. Whether structs get > passed in registers depends on the host CPU ABI/calling convention.
Because of C++, structs up to pointer size are in practice always passed in registers. 64-bit structs may or may not. The main advantage of structs is that it's impossible to mismatch the parameter order. That even trumps readability in my opinion. I'm ambivalent, but I wouldn't mind at all using structs. Paolo >> > I find it more readable, you ca go: >> > >> > attrs.secure = 1; >> > attrs.master_id = 0x77; >> > if (!attrs.secure) >> > >> > instead of: >> > >> > attrs |= MEMTXATTRS_SECURE >> > if (!(attrs & MEMTXATTRS_SECURE)) >> > >> > etc... >> > >> > Or do you see any disadvantages with this? > I prefer the traditional integer-and-bitops approach, then you > know what you're getting everywhere...
