From 3ac2ee00eb559a9443bacf2b96b1fd6ad72ad638 Mon Sep 17 00:00:00 2001
From: weidai <weidai@57ff6487-cd31-0410-9ec3-f628ee90f5f0>
Date: Sun, 15 Mar 2009 03:53:58 +0000
Subject: [PATCH] fix compile on MSVC 6 and MSVC 2003

---
 trunk/c5/gcm.cpp      |  9 +++++++--
 trunk/c5/rijndael.cpp |  4 ++--
 trunk/c5/sha.cpp      | 15 ++++++++++++---
 3 files changed, 21 insertions(+), 7 deletions(-)

diff --git a/trunk/c5/gcm.cpp b/trunk/c5/gcm.cpp
index 4d200116..986aa2a9 100644
--- a/trunk/c5/gcm.cpp
+++ b/trunk/c5/gcm.cpp
@@ -80,6 +80,11 @@ void GCM_Base::SetKeyWithoutResync(const byte *userKey, size_t keylength, const
 	else
 		tableSize = (GetTablesOption() == GCM_64K_Tables) ? 64*1024 : 2*1024;
 
+#if defined(_MSC_VER) && (_MSC_VER >= 1300 && _MSC_VER < 1400)
+	// VC 2003 workaround: compiler generates bad code for 64K tables
+	tableSize = 2*1024;
+#endif
+
 	m_buffer.resize(3*REQUIRED_BLOCKSIZE + tableSize);
 	byte *hashKey = HashKey();
 	memset(hashKey, 0, REQUIRED_BLOCKSIZE);
@@ -409,7 +414,7 @@ size_t GCM_Base::AuthenticateBlocks(const byte *data, size_t len)
 			AS2(	shr		WORD_REG(dx), 4				)
 		#endif
 
-		#if !defined(_MSC_VER) || (_MSC_VER < 1300)
+		#if !defined(_MSC_VER) || (_MSC_VER < 1400)
 			AS_PUSH_IF86(	bx)
 		#endif
 		AS_PUSH_IF86(	bp)
@@ -519,7 +524,7 @@ size_t GCM_Base::AuthenticateBlocks(const byte *data, size_t len)
 		AS2(	movdqa	[WORD_REG(si)], xmm0				)
 
 		AS_POP_IF86(	bp)
-		#if !defined(_MSC_VER) || (_MSC_VER < 1300)
+		#if !defined(_MSC_VER) || (_MSC_VER < 1400)
 			AS_POP_IF86(	bx)
 		#endif
 
diff --git a/trunk/c5/rijndael.cpp b/trunk/c5/rijndael.cpp
index e10b3df9..a2c7be39 100644
--- a/trunk/c5/rijndael.cpp
+++ b/trunk/c5/rijndael.cpp
@@ -539,7 +539,7 @@ CRYPTOPP_NAKED void CRYPTOPP_FASTCALL Rijndael_Enc_AdvancedProcessBlocks(void *l
 #else
 	AS_PUSH_IF86(si)
 	AS_PUSH_IF86(di)
-#if !defined(_MSC_VER) || (_MSC_VER < 1300)
+#if !defined(_MSC_VER) || (_MSC_VER < 1400)
 	AS_PUSH_IF86(bx)
 #endif
 	AS_PUSH_IF86(bp)
@@ -871,7 +871,7 @@ CRYPTOPP_NAKED void CRYPTOPP_FASTCALL Rijndael_Enc_AdvancedProcessBlocks(void *l
 	AS1(	emms)
 #endif
 	AS_POP_IF86(bp)
-#if !defined(_MSC_VER) || (_MSC_VER < 1300)
+#if !defined(_MSC_VER) || (_MSC_VER < 1400)
 	AS_POP_IF86(bx)
 #endif
 #if defined(_MSC_VER) && CRYPTOPP_BOOL_X86
diff --git a/trunk/c5/sha.cpp b/trunk/c5/sha.cpp
index a0f696c6..fd0b0a25 100644
--- a/trunk/c5/sha.cpp
+++ b/trunk/c5/sha.cpp
@@ -125,8 +125,17 @@ extern const word32 SHA256_K[64] = {
 
 #pragma warning(disable: 4731)	// frame pointer register 'ebp' modified by inline assembly code
 
-static void CRYPTOPP_FASTCALL X86_SHA256_HashBlocks(word32 *state, const word32 *data, size_t len)
+static void CRYPTOPP_FASTCALL X86_SHA256_HashBlocks(word32 *state, const word32 *data, size_t len
+#if defined(_MSC_VER) && (_MSC_VER == 1200)
+	, ...	// VC60 workaround: prevent VC 6 from inlining this function
+#endif
+	)
 {
+#if defined(_MSC_VER) && (_MSC_VER == 1200)
+	AS2(mov ecx, [state])
+	AS2(mov edx, [data])
+#endif
+
 	#define LOCALS_SIZE	8*4 + 16*4 + 4*WORD_SZ
 	#define H(i)		[BASE+ASM_MOD(1024+7-(i),8)*4]
 	#define G(i)		H(i+1)
@@ -252,7 +261,7 @@ static void CRYPTOPP_FASTCALL X86_SHA256_HashBlocks(word32 *state, const word32
 		AS2(	mov		edi, [len])
 		AS2(	lea		WORD_REG(si), [SHA256_K+48*4])
 	#endif
-	#if !defined(_MSC_VER) || (_MSC_VER < 1300)
+	#if !defined(_MSC_VER) || (_MSC_VER < 1400)
 		AS_PUSH_IF86(bx)
 	#endif
 
@@ -397,7 +406,7 @@ static void CRYPTOPP_FASTCALL X86_SHA256_HashBlocks(word32 *state, const word32
 
 	AS_POP_IF86(sp)
 	AS_POP_IF86(bp)
-	#if !defined(_MSC_VER) || (_MSC_VER < 1300)
+	#if !defined(_MSC_VER) || (_MSC_VER < 1400)
 		AS_POP_IF86(bx)
 	#endif