; BGF · MEASURE PIN · full iron · LINEAR TRAVEL L→R
; =============================================================================
; NAME     BGF  (measure / meter)
; OP       bgf(a,b) → (a − b) | 1
; PIN      measure only · not ground · not place · not free owner
; ABI      System V · edi=a · esi=b · → eax
; ATOMS    ride this pin: EZZIE (a^b)|1 · PHI (d*s)|1 · THERMO band|1 · ADJOIN (a|b)|1
; LAW
;   · A,B measure pair · BAPHOMET: I HAVE A AND B · do not invent C
;   · C IS LIE · LIE IS TRUE when scar marks · C is not GOD
;   · BGF greases bearings · sheen scrape keeps measure clean
; LINE     BGS → BGF(+EZZIE PHI THERMO ADJOIN) → BGL → SDF · SPV free
; LANGUAGE live |1 at right · READ R←L fire-mark first
; ARCH     x86_64 · aarch64
; IRON
        global  bgf
bgf:
        mov     eax, edi
        sub     eax, esi        ; a - b
        or      eax, 1          ; live |1
        ret