/************************************************* * Assembly Macros Header File * * (C) 1999-2008 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 /************************************************* * Register Names * *************************************************/ #define R0 %rax #define R1 %rbx #define R2 %rcx #define R3 %rdx #define R4 %rsp #define R5 %rbp #define R6 %rsi #define R7 %rdi #define R8 %r8 #define R9 %r9 #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_3 R3 #define ARG_4 R2 #define ARG_5 R8 #define ARG_6 R9 #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_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