REG_UESP           13 src/pkg/runtime/os_netbsd_386.c 	mc->__gregs[REG_UESP] = (uint32)stack;
REG_UESP           14 src/pkg/runtime/signal_netbsd_386.h #define SIG_ESP(info, ctxt) (SIG_REGS(ctxt).__gregs[REG_UESP])