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diff --git a/src/asm/asm_amd64/asm_macr.h b/src/asm/asm_amd64/asm_macr.h
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+/*************************************************
+* Assembly Macros Header File *
+* (C) 1999-2008 Jack Lloyd *
+*************************************************/
+
+#ifndef BOTAN_AMD64_ASM_MACROS_H__
+#define BOTAN_AMD64_ASM_MACROS_H__
+
+#ifdef __ELF__
+.section .note.GNU-stack,"",%progbits
+#endif
+
+/*************************************************
+* General/Global Macros *
+*************************************************/
+#define ALIGN .p2align 4,,15
+
+#define START_LISTING(FILENAME) \
+ .file #FILENAME; \
+ .text; \
+ ALIGN;
+
+/*************************************************
+* Function Definitions *
+*************************************************/
+#define START_FUNCTION(func_name) \
+ ALIGN; \
+ .global func_name; \
+ .type func_name,@function; \
+func_name:
+
+#define END_FUNCTION(func_name) \
+ ret
+
+/*************************************************
+* Conditional Jumps *
+*************************************************/
+#define JUMP_IF_ZERO(REG, LABEL) \
+ cmp IMM(0), REG; \
+ jz LABEL
+
+#define JUMP_IF_LT(REG, NUM, LABEL) \
+ cmp IMM(NUM), REG; \
+ jl LABEL
+
+/*************************************************
+* Register Names *
+*************************************************/
+#define R0 %rax
+#define R1 %rbx
+#define R2 %rcx
+#define R2_32 %ecx
+#define R3 %rdx
+#define R3_32 %edx
+#define R4 %rsp
+#define R5 %rbp
+#define R6 %rsi
+#define R6_32 %esi
+#define R7 %rdi
+#define R8 %r8
+#define R9 %r9
+#define R9_32 %r9d
+#define R10 %r10
+#define R11 %r11
+#define R12 %r12
+#define R13 %r13
+#define R14 %r14
+#define R15 %r15
+#define R16 %r16
+
+#define ARG_1 R7
+#define ARG_2 R6
+#define ARG_2_32 R6_32
+#define ARG_3 R3
+#define ARG_3_32 R3_32
+#define ARG_4 R2
+#define ARG_4_32 R2_32
+#define ARG_5 R8
+#define ARG_6 R9
+#define ARG_6_32 R9_32
+
+#define TEMP_1 R10
+#define TEMP_2 R11
+#define TEMP_3 ARG_6
+#define TEMP_4 ARG_5
+#define TEMP_5 ARG_4
+#define TEMP_5_32 ARG_4_32
+#define TEMP_6 ARG_3
+#define TEMP_7 ARG_2
+#define TEMP_8 ARG_1
+#define TEMP_9 R0
+
+/*************************************************
+* Memory Access Operations *
+*************************************************/
+#define ARRAY8(REG, NUM) 8*(NUM)(REG)
+#define ARRAY4(REG, NUM) 4*(NUM)(REG)
+
+#define ASSIGN(TO, FROM) mov FROM, TO
+
+/*************************************************
+* ALU Operations *
+*************************************************/
+#define IMM(VAL) $VAL
+
+#define ADD(TO, FROM) add FROM, TO
+#define ADD_LAST_CARRY(REG) adc IMM(0), REG
+#define ADD_IMM(TO, NUM) ADD(TO, IMM(NUM))
+#define ADD_W_CARRY(TO1, TO2, FROM) add FROM, TO1; adc IMM(0), TO2;
+#define SUB_IMM(TO, NUM) sub IMM(NUM), TO
+#define MUL(REG) mul REG
+
+#define XOR(TO, FROM) xor FROM, TO
+#define AND(TO, FROM) and FROM, TO
+#define OR(TO, FROM) or FROM, TO
+#define NOT(REG) not REG
+#define ZEROIZE(REG) XOR(REG, REG)
+
+#define RETURN_VALUE_IS(V) ASSIGN(%rax, V)
+
+#define ROTL_IMM(REG, NUM) rol IMM(NUM), REG
+#define ROTR_IMM(REG, NUM) ror IMM(NUM), REG
+#define ADD3_IMM(TO, FROM, NUM) lea NUM(TO,FROM,1), TO
+
+#endif