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Declares an indexable, temporary register.
| dcl_indexableTemp xN[size], ComponentCount |
|---|
| Item | Description |
|---|---|
| xN |
[in] A temporary indexable register.
|
| ComponentCount |
[in] An optional integer value.The number of components in the register array. |
A register contains enough space for a 32-bit four-component value; the number of elements in the array of temporary registers (indexable and non-indexable) cannot exceed 4096.
This instruction applies to the following shader stages:
| Vertex Shader | Geometry Shader | Pixel Shader |
|---|---|---|
| x | x | x |
This instruction is included to aid in debugging a shader in assembly; you cannot author a shader in assembly language using Shader Model 4.
Example
Here are some examples of the code generated for indexable registers.
dcl_indexableTemp x0[23], 2 ; // An indexable array of 23, 2-component, 32-bit elements
dcl_indexableTemp x1[16], 4 ; // An indexable array of 16, 4-component, 32-bit elements
Minimum Shader Model
This function is supported in the following shader models.
| Shader Model | Supported |
|---|---|
| Shader Model 5 | yes |
| Shader Model 4.1 | yes |
| Shader Model 4 | yes |
| Shader Model 3 (DirectX HLSL) | no |
| Shader Model 2 (DirectX HLSL) | no |
| Shader Model 1 (DirectX HLSL) | no |