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| author | ReinUsesLisp <reinuseslisp@airmail.cc> | 2019-08-31 17:06:00 -0300 |
|---|---|---|
| committer | ReinUsesLisp <reinuseslisp@airmail.cc> | 2019-09-04 01:55:24 -0300 |
| commit | 77ef4fa9078b56c3fcaded3a618cf95fe21e66d4 (patch) | |
| tree | 7d21a7ab8db5c806f93f4d345a887e4f1d2c7a2f /src/video_core/engines | |
| parent | 922c7f4e510c12a7e207ba08904c2523d99edd55 (diff) | |
shader/shift: Implement SHR wrapped and clamped variants
Nvidia defaults to wrapped shifts, but this is undefined behaviour on
OpenGL's spec. Explicitly mask/clamp according to what the guest shader
requires.
Diffstat (limited to 'src/video_core/engines')
| -rw-r--r-- | src/video_core/engines/shader_bytecode.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/video_core/engines/shader_bytecode.h b/src/video_core/engines/shader_bytecode.h index c3678b9ea..bd8c1ada0 100644 --- a/src/video_core/engines/shader_bytecode.h +++ b/src/video_core/engines/shader_bytecode.h @@ -675,6 +675,10 @@ union Instruction { } shift; union { + BitField<39, 1, u64> wrap; + } shr; + + union { BitField<39, 5, u64> shift_amount; BitField<48, 1, u64> negate_b; BitField<49, 1, u64> negate_a; |