Loop counter register (HLSL PS reference)
The only register in this bank is the current loop counter (aL) register. It automatically gets incremented in each execution of the loop - ps/endloop - ps block. So it can be used in the block for relative addressing if needed and is invalid to use it outside the loop.
| Pixel shader versions | 1_1 | 1_2 | 1_3 | 1_4 | 2_0 | 2_sw | 2_x | 3_0 | 3_sw |
|---|---|---|---|---|---|---|---|---|---|
| Loop Counter Register | x | x |
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