1 files changed, 128 insertions, 0 deletions
diff --git a/src/lib/utils/asm_x86_32/asm_x86_32.h b/src/lib/utils/asm_x86_32/asm_x86_32.h
new file mode 100644
index 000000000..d5482c419
--- /dev/null
+++ b/src/lib/utils/asm_x86_32/asm_x86_32.h
@@ -0,0 +1,128 @@
+/*
+* Assembly Macros for 32-bit x86
+* (C) 1999-2008 Jack Lloyd
+*
+* Distributed under the terms of the Botan license
+*/
+
+#ifndef BOTAN_ASM_MACROS_X86_32_H__
+#define BOTAN_ASM_MACROS_X86_32_H__
+
+/*
+* General/Global Macros
+*/
+#define ALIGN .p2align 4,,15
+
+#define START_LISTING(FILENAME) \
+   .file #FILENAME;             \
+   .text;                       \
+   ALIGN;
+
+#if defined(__ELF__)
+.section .note.GNU-stack,"",%progbits
+#endif
+
+/*
+* 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) \
+   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