ref: 850c78aaf47a167e64a01aa1dc07bbe558a7c282
dir: /test/link/high-low/a.asm/
ldhilo : MACRO
    ld  HIGH(\1),LOW(\2)
ENDM
SECTION "r0", ROM0[$0]
ld HIGH(af),a
ld HIGH(bc),LOW(bc)
ld LOW(bc),HIGH(bc)
ld HIGH(de),LOW(de)
ld LOW(de),HIGH(de)
    ldhilo hl, hl
ld LOW(hl),HIGH(hl)
db HIGH(label+$AB)
db LOW(label+$AB)
db HIGH($1234)
db LOW($1234)
SECTION "o",OAM
DS $10
label: