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/*************************************************
* Assembly Macros Header File *
* (C) 1999-2006 The Botan Project *
*************************************************/
#ifndef BOTAN_EXT_ASM_MACROS_H__
#define BOTAN_EXT_ASM_MACROS_H__
/*************************************************
* 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
/*************************************************
* Loop Control *
*************************************************/
#define START_LOOP(LABEL) \
ALIGN; \
LABEL##_LOOP:
#define LOOP_UNTIL_EQ(REG, NUM, LABEL) \
cmp IMM(NUM), REG; \
jne LABEL##_LOOP
#define LOOP_UNTIL_LT(REG, NUM, LABEL) \
cmp IMM(NUM), REG; \
jge LABEL##_LOOP
/*************************************************
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
/*************************************************
* Memory Access Operations *
*************************************************/
#define ARRAY8(REG, NUM) 8*(NUM)(REG)
#define ASSIGN(TO, FROM) mov FROM, TO
/*************************************************
* ALU Operations *
*************************************************/
#define IMM(VAL) $VAL
#define ADD(TO, FROM) addq FROM, TO
#define ADD_LAST_CARRY(REG) adcq IMM(0), REG
#define ADD_IMM(TO, NUM) ADD(TO, IMM(NUM))
#define ADD_W_CARRY(TO1, TO2, FROM) addq FROM, TO1; adcq IMM(0), TO2;
#define SUB_IMM(TO, NUM) sub IMM(NUM), TO
#define MUL(REG) mulq REG
#define XOR(TO, FROM) xorq FROM, TO
#define AND(TO, FROM) andq FROM, TO
#define OR(TO, FROM) orq FROM, TO
#define NOT(REG) notq REG
#define ZEROIZE(REG) XOR(REG, REG)
#define RETURN_VALUE_IS(V) ASSIGN(%rax, V)
#endif
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