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This is the R.O.M.E.68000 Manual version 0.51.
This is an experimental version.
Copyright © 1997 by G. Mezzetti; last update: January 1, 1999.

Ordinary Instructions of the ``Control'' Class

CHange Sign

Mnemonic:

CHS

Operands:

A

Oper.	Addressing Group	Op. Use	Mult. Op.
A	dadr	e	-

Instruction Key:

30

Formal Description:

-A --> A {change sign to A}.

Informal Description

This instruction computes the opposite of  A in the ring of residue classes of integers modulus 65536; in other words, it puts in A the result of the expression (65536 - A) MOD 65536.

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