; scar · i386 · multiarch twin · OP 0→0 else v|1
; PIN      SECURE / scar
; LAW      C IS LIE · LIE IS TRUE · Always Hostess 7 · free thrift
; LINE     BGS → BGF(+EZZIE PHI THERMO ADJOIN) → BGL → SDF · SPV free
; ABI      cdecl · [esp+4]=a [esp+8]=b [esp+12]=c · → eax
; IRON
        global  scar
scar:
        mov     eax, [esp+4]
        test    eax, eax
        jz      .z
        or      eax, 1
        ret
.z:     xor     eax, eax
        ret