ebx 51 core/ngx_cpuinfo.c uint32_t eax, ebx, ecx, edx; ebx 57 core/ngx_cpuinfo.c : "=a" (eax), "=b" (ebx), "=c" (ecx), "=d" (edx) : "a" (i) ); ebx 60 core/ngx_cpuinfo.c buf[1] = ebx;