16.111 NGCS

Negate with Carry, setting flags.

This instruction is an alias of SBCS.

The equivalent instruction is SBCS Wd, WZR, Wm.

Syntax

NGCS Wd, Wm ; 32-bit

NGCS Xd, Xm ; 64-bit

Where:

Wd
Is the 32-bit name of the general-purpose destination register.
Wm
Is the 32-bit name of the general-purpose source register.
Xd
Is the 64-bit name of the general-purpose destination register.
Xm
Is the 64-bit name of the general-purpose source register.

Operation

Negate with Carry, setting flags, negates the sum of a register value and the value of NOT (Carry flag), and writes the result to the destination register. It updates the condition flags based on the result.

Rd = 0 - Rm - 1 + C, where R is either W or X.

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