Conditionally break out of the current loop at the nearest endloop - vs or endrep - vs. Use one of the components of the predicate register as a condition to determine whether or not to perform the instruction.
breakp [!]p0.{x|y|z|w} |
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Where:
Vertex shader versions | 1_1 | 2_0 | 2_x | 2_sw | 3_0 | 3_sw |
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breakp | x | x | x | x |