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/*
* MD5 in IA-32 assembler
* (C) 1999-2007 Jack Lloyd
*
* Distributed under the terms of the Botan license
*/
#include <botan/asm_macr_ia32.h>
START_LISTING(md5_ia32.S)
START_FUNCTION(botan_md5_ia32_compress)
SPILL_REGS()
#define PUSHED 4
ASSIGN(EBP, ARG(2)) /* input block */
ASSIGN(EDI, ARG(3)) /* expanded words */
ZEROIZE(ESI)
START_LOOP(.LOAD_INPUT)
ADD_IMM(ESI, 4)
ASSIGN(EAX, ARRAY4(EBP, 0))
ASSIGN(EBX, ARRAY4(EBP, 1))
ASSIGN(ECX, ARRAY4(EBP, 2))
ASSIGN(EDX, ARRAY4(EBP, 3))
ADD_IMM(EBP, 16)
ASSIGN(ARRAY4_INDIRECT(EDI,ESI,-4), EAX)
ASSIGN(ARRAY4_INDIRECT(EDI,ESI,-3), EBX)
ASSIGN(ARRAY4_INDIRECT(EDI,ESI,-2), ECX)
ASSIGN(ARRAY4_INDIRECT(EDI,ESI,-1), EDX)
LOOP_UNTIL_EQ(ESI, 16, .LOAD_INPUT)
ASSIGN(EBP, ARG(1))
ASSIGN(EAX, ARRAY4(EBP, 0))
ASSIGN(EBX, ARRAY4(EBP, 1))
ASSIGN(ECX, ARRAY4(EBP, 2))
ASSIGN(EDX, ARRAY4(EBP, 3))
#define MSG EDI
#define T1 ESI
#define T2 EBP
#define FF(A, B, C, D, N, S, MAGIC) \
ASSIGN(T1, ARRAY4(MSG, N)) ; \
ASSIGN(T2, C) ; \
XOR(T2, D) ; \
AND(T2, B) ; \
XOR(T2, D) ; \
ADD3_IMM(A, T1, MAGIC) ; \
ADD(A, T2) ; \
ROTL_IMM(A, S) ; \
ADD(A, B) ;
#define GG(A, B, C, D, N, S, MAGIC) \
ASSIGN(T1, ARRAY4(MSG, N)) ; \
ASSIGN(T2, B) ; \
XOR(T2, C) ; \
AND(T2, D) ; \
XOR(T2, C) ; \
ADD3_IMM(A, T1, MAGIC) ; \
ADD(A, T2) ; \
ROTL_IMM(A, S) ; \
ADD(A, B) ;
#define HH(A, B, C, D, N, S, MAGIC) \
ASSIGN(T1, ARRAY4(MSG, N)) ; \
ASSIGN(T2, B) ; \
XOR(T2, C) ; \
XOR(T2, D) ; \
ADD3_IMM(A, T1, MAGIC) ; \
ADD(A, T2) ; \
ROTL_IMM(A, S) ; \
ADD(A, B) ;
#define II(A, B, C, D, N, S, MAGIC) \
ASSIGN(T1, ARRAY4(MSG, N)) ; \
ASSIGN(T2, D) ; \
NOT(T2) ; \
OR(T2, B) ; \
XOR(T2, C) ; \
ADD3_IMM(A, T1, MAGIC) ; \
ADD(A, T2) ; \
ROTL_IMM(A, S) ; \
ADD(A, B) ;
FF(EAX,EBX,ECX,EDX, 0, 7,0xD76AA478);
FF(EDX,EAX,EBX,ECX, 1,12,0xE8C7B756);
FF(ECX,EDX,EAX,EBX, 2,17,0x242070DB);
FF(EBX,ECX,EDX,EAX, 3,22,0xC1BDCEEE);
FF(EAX,EBX,ECX,EDX, 4, 7,0xF57C0FAF);
FF(EDX,EAX,EBX,ECX, 5,12,0x4787C62A);
FF(ECX,EDX,EAX,EBX, 6,17,0xA8304613);
FF(EBX,ECX,EDX,EAX, 7,22,0xFD469501);
FF(EAX,EBX,ECX,EDX, 8, 7,0x698098D8);
FF(EDX,EAX,EBX,ECX, 9,12,0x8B44F7AF);
FF(ECX,EDX,EAX,EBX,10,17,0xFFFF5BB1);
FF(EBX,ECX,EDX,EAX,11,22,0x895CD7BE);
FF(EAX,EBX,ECX,EDX,12, 7,0x6B901122);
FF(EDX,EAX,EBX,ECX,13,12,0xFD987193);
FF(ECX,EDX,EAX,EBX,14,17,0xA679438E);
FF(EBX,ECX,EDX,EAX,15,22,0x49B40821);
GG(EAX,EBX,ECX,EDX, 1, 5,0xF61E2562);
GG(EDX,EAX,EBX,ECX, 6, 9,0xC040B340);
GG(ECX,EDX,EAX,EBX,11,14,0x265E5A51);
GG(EBX,ECX,EDX,EAX, 0,20,0xE9B6C7AA);
GG(EAX,EBX,ECX,EDX, 5, 5,0xD62F105D);
GG(EDX,EAX,EBX,ECX,10, 9,0x02441453);
GG(ECX,EDX,EAX,EBX,15,14,0xD8A1E681);
GG(EBX,ECX,EDX,EAX, 4,20,0xE7D3FBC8);
GG(EAX,EBX,ECX,EDX, 9, 5,0x21E1CDE6);
GG(EDX,EAX,EBX,ECX,14, 9,0xC33707D6);
GG(ECX,EDX,EAX,EBX, 3,14,0xF4D50D87);
GG(EBX,ECX,EDX,EAX, 8,20,0x455A14ED);
GG(EAX,EBX,ECX,EDX,13, 5,0xA9E3E905);
GG(EDX,EAX,EBX,ECX, 2, 9,0xFCEFA3F8);
GG(ECX,EDX,EAX,EBX, 7,14,0x676F02D9);
GG(EBX,ECX,EDX,EAX,12,20,0x8D2A4C8A);
HH(EAX,EBX,ECX,EDX, 5, 4,0xFFFA3942);
HH(EDX,EAX,EBX,ECX, 8,11,0x8771F681);
HH(ECX,EDX,EAX,EBX,11,16,0x6D9D6122);
HH(EBX,ECX,EDX,EAX,14,23,0xFDE5380C);
HH(EAX,EBX,ECX,EDX, 1, 4,0xA4BEEA44);
HH(EDX,EAX,EBX,ECX, 4,11,0x4BDECFA9);
HH(ECX,EDX,EAX,EBX, 7,16,0xF6BB4B60);
HH(EBX,ECX,EDX,EAX,10,23,0xBEBFBC70);
HH(EAX,EBX,ECX,EDX,13, 4,0x289B7EC6);
HH(EDX,EAX,EBX,ECX, 0,11,0xEAA127FA);
HH(ECX,EDX,EAX,EBX, 3,16,0xD4EF3085);
HH(EBX,ECX,EDX,EAX, 6,23,0x04881D05);
HH(EAX,EBX,ECX,EDX, 9, 4,0xD9D4D039);
HH(EDX,EAX,EBX,ECX,12,11,0xE6DB99E5);
HH(ECX,EDX,EAX,EBX,15,16,0x1FA27CF8);
HH(EBX,ECX,EDX,EAX, 2,23,0xC4AC5665);
II(EAX,EBX,ECX,EDX, 0, 6,0xF4292244);
II(EDX,EAX,EBX,ECX, 7,10,0x432AFF97);
II(ECX,EDX,EAX,EBX,14,15,0xAB9423A7);
II(EBX,ECX,EDX,EAX, 5,21,0xFC93A039);
II(EAX,EBX,ECX,EDX,12, 6,0x655B59C3);
II(EDX,EAX,EBX,ECX, 3,10,0x8F0CCC92);
II(ECX,EDX,EAX,EBX,10,15,0xFFEFF47D);
II(EBX,ECX,EDX,EAX, 1,21,0x85845DD1);
II(EAX,EBX,ECX,EDX, 8, 6,0x6FA87E4F);
II(EDX,EAX,EBX,ECX,15,10,0xFE2CE6E0);
II(ECX,EDX,EAX,EBX, 6,15,0xA3014314);
II(EBX,ECX,EDX,EAX,13,21,0x4E0811A1);
II(EAX,EBX,ECX,EDX, 4, 6,0xF7537E82);
II(EDX,EAX,EBX,ECX,11,10,0xBD3AF235);
II(ECX,EDX,EAX,EBX, 2,15,0x2AD7D2BB);
II(EBX,ECX,EDX,EAX, 9,21,0xEB86D391);
ASSIGN(EBP, ARG(1))
ADD(ARRAY4(EBP, 0), EAX)
ADD(ARRAY4(EBP, 1), EBX)
ADD(ARRAY4(EBP, 2), ECX)
ADD(ARRAY4(EBP, 3), EDX)
RESTORE_REGS()
END_FUNCTION(botan_md5_ia32_compress)
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