From 23b1e6eded2d4af99b69d6958314db610ab23cd3 Mon Sep 17 00:00:00 2001 From: Subv Date: Mon, 4 Jun 2018 19:03:47 -0500 Subject: GPU: Implement the ISCADD shader instructions. --- src/video_core/engines/shader_bytecode.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'src/video_core/engines') diff --git a/src/video_core/engines/shader_bytecode.h b/src/video_core/engines/shader_bytecode.h index da451c4d6..8d4ea3401 100644 --- a/src/video_core/engines/shader_bytecode.h +++ b/src/video_core/engines/shader_bytecode.h @@ -232,6 +232,22 @@ union Instruction { } } alu; + union { + BitField<39, 5, u64> shift_amount; + BitField<20, 19, u64> immediate_low; + BitField<56, 1, u64> immediate_high; + BitField<48, 1, u64> negate_b; + BitField<49, 1, u64> negate_a; + + s32 GetImmediate() const { + u32 immediate = static_cast(immediate_low | (immediate_high << 19)); + // Sign extend the 20-bit value. + u32 mask = 1U << (20 - 1); + return static_cast((immediate ^ mask) - mask); + } + + } iscadd; + union { BitField<48, 1, u64> negate_b; BitField<49, 1, u64> negate_c; -- cgit v1.2.3