diff options
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/language-reference/04-types.md | 4 | ||||
| -rw-r--r-- | docs/target-compatibility.md | 16 |
2 files changed, 17 insertions, 3 deletions
diff --git a/docs/language-reference/04-types.md b/docs/language-reference/04-types.md index e7344793c..d62af1763 100644 --- a/docs/language-reference/04-types.md +++ b/docs/language-reference/04-types.md @@ -43,7 +43,7 @@ All signed integers used two's complement representation. All arithmetic operations on integers (both signed and unsigned) wrap on overflow/underflow. All target platforms must support the `int` and `uint` types. -Specific target platforms may not support the other integer types. +Specific [target platforms](../target-compatibility.md) may not support the other integer types. All integer types are stored in memory with their natural size and alignment on all targets that support them. @@ -61,7 +61,7 @@ All floating-point types are laid out in memory using the matching IEEE 754 stan Target platforms may define their own rules for rounding, precision, denormals, infinities, and not-a-number values. All target platforms must support the `float` type. -Specific targets may not support the other floating-point types. +Specific [targets](../target-compatibility.md) may not support the other floating-point types. All floating-point types are stored in memory with their natural size and alignment on all targets that support them. diff --git a/docs/target-compatibility.md b/docs/target-compatibility.md index 6fda4ceed..08819ac17 100644 --- a/docs/target-compatibility.md +++ b/docs/target-compatibility.md @@ -9,9 +9,11 @@ Items with ^ means there is some discussion about support later in the document | Feature | D3D11 | D3D12 | VK | CUDA | CPU |-----------------------------|--------------|--------------|------------|---------------|--------------- -| Half Type | No | Yes | Yes | Yes ^ | No + +| Half Type | No | Yes ^ | Yes | Yes ^ | No + | Double Type | Yes | Yes | Yes | Yes | Yes | Double Intrinsics | No | Limited + | Limited | Most | Yes +| u/int8_t Type | No | No | Yes ^ | Yes | Yes +| u/int16_t Type | No | Yes ^ | Yes ^ | Yes | Yes | u/int64_t Type | No | Yes ^ | Yes | Yes | Yes | u/int64_t Intrinsics | No | No | Yes | Yes | Yes | int matrix | Yes | Yes | No + | Yes | Yes @@ -47,6 +49,18 @@ There appears to be a problem writing to a StructuredBuffer containing half on D In order for half to work in CUDA, NVRTC must be able to include `cuda_fp16.h` and related files. Please read the [CUDA target documentation](cuda-target.md) for more details. +## u/int8_t Type + +Not currently supported in D3D11/D3D12 because not supported in HLSL/DXIL/DXBC. + +Supported in Vulkan via the extensions `GL_EXT_shader_explicit_arithmetic_types` and `GL_EXT_shader_8bit_storage`. + +## u/int16_t Type + +Requires SM6.2 which requires DXIL and therefore DXC and D3D12. For DXC this is discussed [here](https://github.com/Microsoft/DirectXShaderCompiler/wiki/16-Bit-Scalar-Types). + +Supported in Vulkan via the extensions `GL_EXT_shader_explicit_arithmetic_types` and `GL_EXT_shader_16bit_storage`. + ## u/int64_t Type Requires SM6.0 which requires DXIL for D3D12. Therefore not available with DXBC on D3D11 or D3D12. |