shader: add FP64 min, max and rounding

Co-authored-by: Çağatay Güçlü <33038942+defektu@users.noreply.github.com>

src/graphics/shader/recompiler/frontend/decode/ShaderDecoder.h

@@ -188,9 +188,12 @@ enum class Opcode {
 	V_FRACT_F32,
 	V_FRACT_F64,
 	V_TRUNC_F32,
+	V_TRUNC_F64,
 	V_CEIL_F32,
+	V_CEIL_F64,
 	V_RNDNE_F32,
 	V_FLOOR_F32,
+	V_FLOOR_F64,
 	V_EXP_F32,
 	V_LOG_F32,
 	V_RSQ_F32,
@@ -248,6 +251,8 @@ enum class Opcode {
 	V_FMA_F64,
 	V_ADD_F64,
 	V_MUL_F64,
+	V_MIN_F64,
+	V_MAX_F64,
 	V_FMA_F32,
 	V_FMA_F16,
 	V_PACK_B32_F16,