callnz pred - vs
Microsoft DirectX 9.0 SDK Update (October 2004)

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:

Remarks

Vertex shader versions1_12_02_x2_sw3_03_sw
callnz predxxxx

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.



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