ishr (sm5 - asm)
Arithmetic shift right (sign extending).
| ishr dest[.mask], src0[.swizzle], src1[.swizzle] |
|---|
| Item | Description |
|---|---|
| dest |
[in] Contains the results of the shift. |
| src0 |
[in] The number of bits to shift. |
| src1 |
[in] The 32-bit values to shift. |
Remarks
This instruction performs a component-wise arithmetic shift of each 32-bit value in src0 right by an unsigned integer bit count provided by the LSB 5 bits (0-31 range) in src1, replicating the value of bit 31. The 32-bit per component result is placed in dest.
This instruction applies to the following shader stages:
| Vertex | Hull | Domain | Geometry | Pixel | Compute |
|---|---|---|---|---|---|
| X | X | X | X | X | X |
Minimum Shader Model
This instruction is supported in the following shader models:
| Shader Model | Supported |
|---|---|
| Shader Model 5 | yes |
| Shader Model 4.1 | no |
| Shader Model 4 | no |
| Shader Model 3 (DirectX HLSL) | no |
| Shader Model 2 (DirectX HLSL) | no |
| Shader Model 1 (DirectX HLSL) | no |