figForth Word - D-

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DMINUS d1 — d2 Convert d1 to its double number two’s complement

NFA:    002696 86                 DB   86H
        002697 444D494E 55        DB   "DMINU"
        00269C D3                 DB   'S'+80H
LFA:    00269D 8126               DW   MINUS-8
CFA:    00269F A126      DMINUS:  DW   $+2
PFA:    0026A1 E1                 POP  HL
        0026A2 D1                 POP  DE
        0026A3 97                 SUB  A
        0026A4 93                 SUB  E
        0026A5 5F                 LD   E,A
        0026A6 3E00               LD   A,0
        0026A8 9A                 SBC  A,D
        0026A9 57                 LD   D,A
        0026AA 3E00               LD   A,0
        0026AC 9D                 SBC  A,L
        0026AD 6F                 LD   L,A
        0026AE 3E00               LD   A,0
        0026B0 9C                 SBC  A,H
        0026B1 67                 LD   H,A
        0026B2 D5                 PUSH DE
        0026B3 C3 E1 20           JP   HPUSH

The Meaning of the Dictionary Fields:

NFALFACFAPFA


Updated: 23rd August 2022 by David Husband
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