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Diffstat (limited to 'src/utils/asm_ia32/asm_macr.h')
-rw-r--r-- | src/utils/asm_ia32/asm_macr.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/src/utils/asm_ia32/asm_macr.h b/src/utils/asm_ia32/asm_macr.h new file mode 100644 index 000000000..6d5dbb59d --- /dev/null +++ b/src/utils/asm_ia32/asm_macr.h @@ -0,0 +1,131 @@ +/************************************************* +* Assembly Macros Header File * +* (C) 1999-2008 Jack Lloyd * +*************************************************/ + +#ifndef BOTAN_IA32_ASM_MACROS_H__ +#define BOTAN_IA32_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; \ + .p2align 4,,15; + +#ifdef __ELF__ +.section .note.GNU-stack,"",%progbits +#endif + +/************************************************* +* Function Definitions * +*************************************************/ +#define START_FUNCTION(func_name) \ + .align 8; \ + 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) \ + cmpl IMM(NUM), REG; \ + jne LABEL##_LOOP + +#define LOOP_UNTIL_LT(REG, NUM, LABEL) \ + cmpl IMM(NUM), REG; \ + jge LABEL##_LOOP + +/************************************************* + Conditional Jumps * +*************************************************/ +#define JUMP_IF_ZERO(REG, LABEL) \ + cmpl IMM(0), REG; \ + jz LABEL + +#define JUMP_IF_LT(REG, NUM, LABEL) \ + cmpl IMM(NUM), REG; \ + jl LABEL + +/************************************************* +* Register Names * +*************************************************/ +#define EAX %eax +#define EBX %ebx +#define ECX %ecx +#define EDX %edx +#define EBP %ebp +#define EDI %edi +#define ESI %esi +#define ESP %esp + +/************************************************* +* Memory Access Operations * +*************************************************/ +#define ARRAY1(REG, NUM) (NUM)(REG) +#define ARRAY4(REG, NUM) 4*(NUM)(REG) +#define ARRAY4_INDIRECT(BASE, OFFSET, NUM) 4*(NUM)(BASE,OFFSET,4) +#define ARG(NUM) 4*(PUSHED) + ARRAY4(ESP, NUM) + +#define ASSIGN(TO, FROM) movl FROM, TO +#define ASSIGN_BYTE(TO, FROM) movzbl FROM, TO + +#define PUSH(REG) pushl REG +#define POP(REG) popl REG + +#define SPILL_REGS() \ + PUSH(EBP) ; \ + PUSH(EDI) ; \ + PUSH(ESI) ; \ + PUSH(EBX) + +#define RESTORE_REGS() \ + POP(EBX) ; \ + POP(ESI) ; \ + POP(EDI) ; \ + POP(EBP) + +/************************************************* +* ALU Operations * +*************************************************/ +#define IMM(VAL) $VAL + +#define ADD(TO, FROM) addl FROM, TO +#define ADD_IMM(TO, NUM) ADD(TO, IMM(NUM)) +#define ADD_W_CARRY(TO1, TO2, FROM) addl FROM, TO1; adcl IMM(0), TO2; +#define SUB_IMM(TO, NUM) subl IMM(NUM), TO +#define ADD2_IMM(TO, FROM, NUM) leal NUM(FROM), TO +#define ADD3_IMM(TO, FROM, NUM) leal NUM(TO,FROM,1), TO +#define MUL(REG) mull REG + +#define SHL_IMM(REG, SHIFT) shll IMM(SHIFT), REG +#define SHR_IMM(REG, SHIFT) shrl IMM(SHIFT), REG +#define SHL2_3(TO, FROM) leal 0(,FROM,8), TO + +#define XOR(TO, FROM) xorl FROM, TO +#define AND(TO, FROM) andl FROM, TO +#define OR(TO, FROM) orl FROM, TO +#define NOT(REG) notl REG +#define ZEROIZE(REG) XOR(REG, REG) + +#define ROTL_IMM(REG, NUM) roll IMM(NUM), REG +#define ROTR_IMM(REG, NUM) rorl IMM(NUM), REG +#define BSWAP(REG) bswapl REG + +#endif |