Aye, "usually" up there was the implication. You can actually do it in C, too! It just requires setting up a few macros, and getting it right requires a fairly

Aye, "usually" up there was the implication. You can actually do it in C, too! It just requires setting up a few macros, and getting it right requires a fairly decent understanding of the underlying hardware. (via TARGET_CUSTOM_FUNCTION_DESCRIPTORS).