/// -*- mode: asm; asm-comment-char: ?/ -*-
///
-/// Fancy SIMD implementation of Salsa20
+/// Common definitions for asesembler source files
///
/// (c) 2015 Straylight/Edgeware
///
/// Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
/// MA 02111-1307, USA.
+#ifndef CATACOMB_ASM_COMMON_H
+#define CATACOMB_ASM_COMMON_H
+
///--------------------------------------------------------------------------
/// General definitions.
# 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.
# define _DECOR_abcd_q(reg) r##reg##x
#endif
-#define _DECOR_xp_b(reg) reg##l
#define _DECOR_xp_w(reg) reg
#define _DECOR_xp_d(reg) e##reg
#if CPUFAM_AMD64
+# define _DECOR_xp_b(reg) reg##l
# define _DECOR_xp_q(reg) r##reg
#endif
#endif
///----- That's all, folks --------------------------------------------------
+
+#endif