On Sat, Feb 14, 2004 at 07:11:52AM -0800, Indigodfw wrote: > 2. Result of (C expression) should go into %xyz > register > So v->counter goes into %1, IOW ll from an int! > > Does not make sense to me. > Why does it work, What am I missing? > I mean in general what is the expression for a m > constraint ptr (because I want ptr to be in regiser) > or *ptr (because I wanna tell compiler that *ptr is > what gets changed) "m" gives you *something* suitable to address a memory object; that isn't necessarily a memory address. On MIPS it can't even be just an address in a register because "m" constraints are used with loads and stores and those only accept the offset(reg) addressing mode. If you want an address use something like "r" (&v->counter), then lw reg,(%xxx). Ralf
