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-rw-r--r--src/utils/asm_ia32/asm_macr.h131
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
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+/*************************************************
+* 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