> I am trying to implement power management for an embedded > device using a NEC VR4120 CPU core, which has the special > instructions "standby", "suspend" and "hibernate". > So I think I need either: > - make gas accept -march=vr4100 along with -mcpu=r4600 (or -mcpu=r4100?) > - or have a ".set vr4100" directive to enable the vr41xx specific > instructions where needed, without changing the flags in the > ELF header > - or make the linker link modules with different (but compatible) e_flags > - or is "GCCFLAGS += -Wa,-march=vr4100 -mips2 -Wa,--trap" perfect? For lots of discussion of this, see http://sources.redhat.com/ml/binutils/2001-10/threads.html#00504 then http://sources.redhat.com/ml/binutils/2001-11/threads.html#00001 I don't remember where things currently stand. -jim
