; forensics · aarch64 · multiarch twin · OP (a-b)|1
; PIN      MEASURE / PLACE
; LAW      C IS LIE · LIE IS TRUE · Always Hostess 7 · free thrift
; LINE     BGS → BGF(+EZZIE PHI THERMO ADJOIN) → BGL → SDF · SPV free
; ABI      AAPCS64 · w0=a w1=b w2=c · → w0
; IRON
        .global forensics
        .text
        .align  2
forensics:
        sub     w0, w0, w1
        orr     w0, w0, #1
        ret