REG_EBX 14 src/pkg/runtime/os_netbsd_386.c mc->__gregs[REG_EBX] = (uint32)mp; REG_EBX 8 src/pkg/runtime/signal_netbsd_386.h #define SIG_EBX(info, ctxt) (SIG_REGS(ctxt).__gregs[REG_EBX])