X-Git-Url: https://git.distorted.org.uk/~mdw/catacomb/blobdiff_plain/866fb27f61c9de2b09d8febad41286fc3f953a4e..a117c06f5ee62cbe7812769703eada01843f76ca:/base/asm-common.h

diff --git a/base/asm-common.h b/base/asm-common.h
index 8e51ea39..d6a8b012 100644
--- a/base/asm-common.h
+++ b/base/asm-common.h
@@ -217,11 +217,11 @@ name:
 #  define INTADDR__1(addr, got) addr
 #endif
 
-// Permutations for SIMD instructions.  SHUF(D, C, B, A) is an immediate,
-// suitable for use in `pshufd' or `shufpd', which copies element D
-// (0 <= D < 4) of the source to element 3 of the destination, element C to
-// element 2, element B to element 1, and element A to element 0.
-#define SHUF(d, c, b, a) (64*(d) + 16*(c) + 4*(b) + (a))
+// Permutations for SIMD instructions.  SHUF(A, B, C, D) is an immediate,
+// suitable for use in `pshufd' or `shufpd', which copies element A
+// (0 <= A < 4) of the source to element 0 of the destination, element B to
+// element 1, element C to element 2, and element D to element 3.
+#define SHUF(a, b, c, d) ((a) + 4*(b) + 16*(c) + 64*(d))
 
 // Map register names to their individual pieces.