back2root:ibm-pc-ms-dos:instr:neg

NEG

NEG - Two's Complement Negation

Subtracts the destination from 0 and saves the 2s complement of “dest” back into “dest”.

Usage:

	NEG	dest

Modifies flags:

AF CF OF PF SF ZF

	Clocks				Size
Operands	808x	286	386	486	Bytes
reg	3	2	2	1	2
mem	16+EA	7	6	3	2-4	(W88=24+EA)

back2root/ibm-pc-ms-dos/instr/neg.txt · Dernière modification : 2023/03/04 00:06 de frater