diff options
| author | lloyd <[email protected]> | 2006-08-21 02:56:06 +0000 |
|---|---|---|
| committer | lloyd <[email protected]> | 2006-08-21 02:56:06 +0000 |
| commit | d25c63273e663beb64e55951e5855126f1d81575 (patch) | |
| tree | a97ff77e029917895f090bf9c1088086c3fb00b0 /modules/alg_ia32/sha1core.S | |
| parent | dd77057cb464044ed1dc5390b6ab121ef147fe32 (diff) | |
Somewhat ineffectual instruction reorderings in the round functions
Use EDX instead of EBP for holding the pointer to the digest array at the
end of the function.
Diffstat (limited to 'modules/alg_ia32/sha1core.S')
| -rw-r--r-- | modules/alg_ia32/sha1core.S | 56 |
1 files changed, 28 insertions, 28 deletions
diff --git a/modules/alg_ia32/sha1core.S b/modules/alg_ia32/sha1core.S index e46e40d0e..c37ff205b 100644 --- a/modules/alg_ia32/sha1core.S +++ b/modules/alg_ia32/sha1core.S @@ -92,41 +92,41 @@ LOOP_UNTIL_EQ(ESI, 80, .EXPANSION) #define MSG EBP #define F1(A, B, C, D, E, F, N) \ - ROTL_IMM(A, 5) ; \ - ASSIGN(F, C) ; \ - XOR(F, D) ; \ - AND(F, B) ; \ - XOR(F, D) ; \ - ROTR_IMM(B, 2) ; \ - ADD3_IMM(E, A, MAGIC1) ; \ - ROTR_IMM(A, 5) ; \ + ASSIGN(F, A) ; \ + ROTL_IMM(F, 5) ; \ ADD(F, E) ; \ - ADD(F, ARRAY4(MSG, N)) ; + ASSIGN(E, C) ; \ + XOR(E, D) ; \ + ADD(F, ARRAY4(MSG, N)) ; \ + AND(E, B) ; \ + XOR(E, D) ; \ + ROTR_IMM(B, 2) ; \ + ADD3_IMM(F, E, MAGIC1) ; #define F2_4(A, B, C, D, E, F, N, MAGIC) \ - ROTL_IMM(A, 5) ; \ - ASSIGN(F, D) ; \ - XOR(F, C) ; \ - XOR(F, B) ; \ - ROTR_IMM(B, 2) ; \ - ADD3_IMM(E, A, MAGIC) ; \ - ROTR_IMM(A, 5) ; \ + ASSIGN(F, A) ; \ + ROTL_IMM(F, 5) ; \ ADD(F, E) ; \ + ASSIGN(E, B) ; \ ADD(F, ARRAY4(MSG, N)) ; \ + XOR(E, C) ; \ + ROTR_IMM(B, 2) ; \ + XOR(E, D) ; \ + ADD3_IMM(F, E, MAGIC) ; \ #define F3(A, B, C, D, E, F, N) \ - ROTL_IMM(A, 5) ; \ - ASSIGN(MSG, B) ; \ ASSIGN(F, B) ; \ - AND(MSG, C) ; \ OR(F, C) ; \ AND(F, D) ; \ + ASSIGN(MSG, B) ; \ + ROTR_IMM(B, 2) ; \ + AND(MSG, C) ; \ OR(F, MSG) ; \ ASSIGN(MSG, ARG(3)) ; \ - ROTR_IMM(B, 2) ; \ - ADD3_IMM(E, A, MAGIC3) ; \ - ROTR_IMM(A, 5) ; \ ADD(F, E) ; \ + ASSIGN(E, A) ; \ + ROTL_IMM(E, 5) ; \ + ADD3_IMM(F, E, MAGIC3) ; \ ADD(F, ARRAY4(MSG, N)) ; \ #define F2(A, B, C, D, E, F, MSG) \ @@ -223,12 +223,12 @@ LOOP_UNTIL_EQ(ESI, 80, .EXPANSION) F4(EAX, EBX, ECX, EDX, ESI, EDI, 78) F4(EDI, EAX, EBX, ECX, EDX, ESI, 79) - ASSIGN(EBP, ARG(1)) - ADD(ARRAY4(EBP, 0), ESI) - ADD(ARRAY4(EBP, 1), EDI) - ADD(ARRAY4(EBP, 2), EAX) - ADD(ARRAY4(EBP, 3), EBX) - ADD(ARRAY4(EBP, 4), ECX) + ASSIGN(EDX, ARG(1)) + ADD(ARRAY4(EDX, 0), ESI) + ADD(ARRAY4(EDX, 1), EDI) + ADD(ARRAY4(EDX, 2), EAX) + ADD(ARRAY4(EDX, 3), EBX) + ADD(ARRAY4(EDX, 4), ECX) RESTORE_REGS() END_FUNCTION(sha160_core) |