Comparison Results from Signed and unsigned numbers in Assembly
Short Notes
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Comparison Results for Signed and Unsigned Numbers:
DEST = SRC:
- ZF = 1 (Zero flags are set)
UDEST < USRC:
- CF = 1 (Carry flag is set)
UDEST ≤ USRC:
- ZF = 1 OR CF = 1 (Either Zero flag or Carry flag is set)
UDEST ≥ USRC:
- CF = 0 (Carry flag is not set)
UDEST > USRC:
- ZF = 0 AND CF = 0 (Zero flag and Carry flag are not set)
Signed
SDEST < SSRC: SF ≠ OF
SDEST ≤ SSRC: ZF = 1 or SF ≠ OF
SDEST ≥ SSRC: SF = OF
SDEST > SSRC: ZF = 0 and SF = OF
Notes
ZF = Zero Flag and CF= Carry Flag
