; XYZ · 3 space · edi=x esi=y edx=z
; LINEAR BGS->BGF->SDF · atoms EZZIE PHI THERMO on BGF · free rides · no duo
; LOCAL NOW field (x-y)|1 · free SPV (x^y^z)|1 never eaten
; z may carry refresh when display · still spatial or measure lane
        mov     r8d, edi
        xor     r8d, esi
        xor     r8d, edx
        or      r8d, 1
        mov     eax, edi
        sub     eax, esi
        or      eax, 1
        ret