callnz-pred---vs.md

title	description	ms.assetid	ms.topic	ms.date	topic_type	api_name	api_type	api_location
callnz pred - vs	Call if not zero, with a predicate. Performs a conditional call to the instruction marked by the label index. Predication uses a boolean value to determine whether of not to perform the instruction.	3417f3e3-7e73-4131-8069-09c0de1469a7	reference	05/31/2018	apiref

callnz pred - vs

Call if not zero, with a predicate. Performs a conditional call to the instruction marked by the label index. Predication uses a boolean value to determine whether of not to perform the instruction.

Syntax

callnz l#, [!]p0.{x|y|z|w}

 

where:

• l# is a label - vs marking the beginning of the subroutine to be called.
• [!] is an optional negate modifier.
• p0 is the Predicate Register.
• {x|y|z|w} is the required replicate swizzle on p0.

Remarks

Vertex shader versions	1_1	2_0	2_x	2_sw	3_0	3_sw
callnz pred			x	x	x	x

 

This instruction does the following:

if (specified register component is not zero)
{
    Push address of the next instruction to the return address stack.
    Continue execution from the instruction marked by the label.
}

This instruction consumes one vertex shader instruction slot.

Related topics

Vertex Shader Instructions