From 7c1d3869d8cf4341acedbe7c662e8ac1ca935666 Mon Sep 17 00:00:00 2001
From: Egor Ananyin <ananinegor@gmail.com>
Date: Fri, 22 May 2020 19:46:43 +0300
Subject: Decompile libmath

---
 arm9/lib/include/MATH.h     |  8 ++++++++
 arm9/lib/include/MATH_crc.h | 38 ++++++++++++++++++++++++++++++++++++++
 arm9/lib/include/MATH_dgt.h | 45 +++++++++++++++++++++++++++++++++++++++++++++
 arm9/lib/include/dgt.h      | 30 ++++++++++++++++++++++++++++++
 arm9/lib/include/math.h     |  8 ++++++++
 5 files changed, 129 insertions(+)
 create mode 100644 arm9/lib/include/MATH.h
 create mode 100644 arm9/lib/include/MATH_crc.h
 create mode 100644 arm9/lib/include/MATH_dgt.h
 create mode 100644 arm9/lib/include/dgt.h
 create mode 100644 arm9/lib/include/math.h

(limited to 'arm9/lib/include')

diff --git a/arm9/lib/include/MATH.h b/arm9/lib/include/MATH.h
new file mode 100644
index 00000000..037492f5
--- /dev/null
+++ b/arm9/lib/include/MATH.h
@@ -0,0 +1,8 @@
+#ifndef GUARD_MATH_H
+#define GUARD_MATH_H
+
+#include "types.h"
+
+u8 MATH_CountPopulation(u32);
+
+#endif
diff --git a/arm9/lib/include/MATH_crc.h b/arm9/lib/include/MATH_crc.h
new file mode 100644
index 00000000..800b738b
--- /dev/null
+++ b/arm9/lib/include/MATH_crc.h
@@ -0,0 +1,38 @@
+#ifndef GUARD_MATH_CRC_H
+#define GUARD_MATH_CRC_H
+
+#include "types.h"
+
+typedef u8 MATHCRC8Context;
+typedef u16 MATHCRC16Context;
+typedef u32 MATHCRC32Context;
+
+struct MATHCRC8Table {
+    u8 table[256];
+};
+
+struct MATHCRC16Table {
+    u16 table[256];
+};
+
+struct MATHCRC32Table {
+    u32 table[256];
+};
+
+u32 MATH_CalcCRC32(const struct MATHCRC32Table *table, const void *data, u32 dataLength);
+void MATHi_CRC32UpdateRev(const struct MATHCRC32Table *table, MATHCRC32Context *context, const void *input, u32 length);
+u16 MATH_CalcCRC16CCITT(const struct MATHCRC16Table *table, const void *data, u32 dataLength);
+void MATHi_CRC16Update(const struct MATHCRC16Table *table, MATHCRC16Context *context, const void *input, u32 length);
+u16 MATH_CalcCRC16(const struct MATHCRC16Table *table, const void *data, u32 dataLength);
+void MATHi_CRC16UpdateRev(const struct MATHCRC16Table *table, MATHCRC16Context *context, const void *input, u32 length);
+u8 MATH_CalcCRC8(const struct MATHCRC8Table *table, const void *data, u32 dataLength);
+void MATHi_CRC8Update(const struct MATHCRC8Table *table, MATHCRC8Context *context, const void *input, u32 length);
+void MATHi_CRC32InitTableRev(struct MATHCRC32Table *table, u32 poly);
+void MATHi_CRC16UpdateRev(const struct MATHCRC16Table *table, MATHCRC16Context *context, const void *input, u32 length);
+void MATHi_CRC16Update(const struct MATHCRC16Table *table, MATHCRC16Context *context, const void *input, u32 length);
+void MATHi_CRC16InitTableRev(struct MATHCRC16Table *table, u16 poly);
+void MATHi_CRC16InitTable(struct MATHCRC16Table *table, u16 poly);
+void MATHi_CRC8Update(const struct MATHCRC8Table *table, MATHCRC8Context *context, const void *input, u32 length);
+void MATHi_CRC8InitTable(struct MATHCRC8Table *table, u8 poly);
+
+#endif
diff --git a/arm9/lib/include/MATH_dgt.h b/arm9/lib/include/MATH_dgt.h
new file mode 100644
index 00000000..9eb3d2ef
--- /dev/null
+++ b/arm9/lib/include/MATH_dgt.h
@@ -0,0 +1,45 @@
+#ifndef GUARD_MATH_DGT_H
+#define GUARD_MATH_DGT_H
+
+#include "dgt.h"
+#include "types.h"
+
+typedef struct DGTHash1Context MATHMD5Context;
+typedef struct DGTHash2Context MATHSHA1Context;
+
+static inline void MATH_MD5Init(MATHMD5Context *context) {
+    DGT_Hash1Reset(context);
+}
+
+static inline void MATH_MD5Update(MATHMD5Context *context, const void *input, u32 length) {
+    DGT_Hash1SetSource(context, (u8*)input, length);
+}
+
+static inline void MATH_MD5GetHash(MATHMD5Context *context, void *digest) {
+    DGT_Hash1GetDigest_R((u8*)digest, context);
+}
+
+static inline void MATH_MD5GetDigest(MATHMD5Context *context, void *digest) {
+    MATH_MD5GetHash(context, digest);
+}
+
+static inline void MATH_SHA1Init(MATHSHA1Context *context) {
+    DGT_Hash2Reset(context);
+}
+
+static inline void MATH_SHA1Update(MATHSHA1Context *context, const void *input, u32 length) {
+    DGT_Hash2SetSource(context, (u8*)input, length);
+}
+
+static inline void MATH_SHA1GetHash(MATHSHA1Context *context, void *digest) {
+    DGT_Hash2GetDigest(context, (u8*)digest);
+}
+
+static inline void MATH_SHA1GetDigest(MATHSHA1Context *context, void *digest) {
+    MATH_SHA1GetHash(context, digest);
+}
+
+void MATH_CalcMD5(void *digest, const void *data, u32 dataLength);
+void MATH_CalcSHA1(void *digest, const void *data, u32 dataLength);
+
+#endif
diff --git a/arm9/lib/include/dgt.h b/arm9/lib/include/dgt.h
new file mode 100644
index 00000000..5e63f3f7
--- /dev/null
+++ b/arm9/lib/include/dgt.h
@@ -0,0 +1,30 @@
+#ifndef GUARD_DGT_H
+#define GUARD_DGT_H
+
+#include "types.h"
+
+struct DGTHash1Context {
+    union {
+        struct {
+            unsigned long a, b, c, d;
+        };
+        unsigned long state[4];
+    };
+    unsigned long long length;
+    union {
+        unsigned long buffer32[16];
+        unsigned char buffer8[64];
+    };
+};
+
+struct DGTHash2Context {
+    unsigned long Intermediate_Hash[5];
+    unsigned long Length_Low;
+    unsigned long Length_High;
+    int Message_Block_Index;
+    unsigned char Message_Block[64];
+    int Computed;
+    int Corrupted;
+};
+
+#endif
diff --git a/arm9/lib/include/math.h b/arm9/lib/include/math.h
new file mode 100644
index 00000000..80d7cc26
--- /dev/null
+++ b/arm9/lib/include/math.h
@@ -0,0 +1,8 @@
+#ifndef GUARD_LIBMATH_H
+#define GUARD_LIBMATH_H
+
+#include "MATH.h"
+#include "MATH_crc.h"
+#include "MATH_dgt.h"
+
+#endif
-- 
cgit v1.2.3


From 936ea8a0134ed8095f9496ebe1571866509530d7 Mon Sep 17 00:00:00 2001
From: Egor Ananyin <ananinegor@gmail.com>
Date: Sat, 23 May 2020 09:22:31 +0300
Subject: Rename header files to avoid confusion

---
 arm9/lib/include/MATH.h     | 8 --------
 arm9/lib/include/MATH_pop.h | 8 ++++++++
 arm9/lib/include/dgt.h      | 7 +++++++
 arm9/lib/include/math.h     | 7 ++++---
 4 files changed, 19 insertions(+), 11 deletions(-)
 delete mode 100644 arm9/lib/include/MATH.h
 create mode 100644 arm9/lib/include/MATH_pop.h

(limited to 'arm9/lib/include')

diff --git a/arm9/lib/include/MATH.h b/arm9/lib/include/MATH.h
deleted file mode 100644
index 037492f5..00000000
--- a/arm9/lib/include/MATH.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef GUARD_MATH_H
-#define GUARD_MATH_H
-
-#include "types.h"
-
-u8 MATH_CountPopulation(u32);
-
-#endif
diff --git a/arm9/lib/include/MATH_pop.h b/arm9/lib/include/MATH_pop.h
new file mode 100644
index 00000000..89dab0c0
--- /dev/null
+++ b/arm9/lib/include/MATH_pop.h
@@ -0,0 +1,8 @@
+#ifndef GUARD_MATH_POP_H
+#define GUARD_MATH_POP_H
+
+#include "types.h"
+
+u8 MATH_CountPopulation(u32);
+
+#endif
diff --git a/arm9/lib/include/dgt.h b/arm9/lib/include/dgt.h
index 5e63f3f7..a764e85a 100644
--- a/arm9/lib/include/dgt.h
+++ b/arm9/lib/include/dgt.h
@@ -27,4 +27,11 @@ struct DGTHash2Context {
     int Corrupted;
 };
 
+void DGT_Hash1Reset(struct DGTHash1Context *context);
+void DGT_Hash1SetSource(struct DGTHash1Context *context, u8 *input, u32 length);
+void DGT_Hash1GetDigest_R(u8 *digest, struct DGTHash1Context *context);
+void DGT_Hash2Reset(struct DGTHash2Context *context);
+void DGT_Hash2SetSource(struct DGTHash2Context *context, u8 *input, u32 length);
+void DGT_Hash2GetDigest(struct DGTHash2Context *context, u8 *digest);
+
 #endif
diff --git a/arm9/lib/include/math.h b/arm9/lib/include/math.h
index 80d7cc26..085aa24f 100644
--- a/arm9/lib/include/math.h
+++ b/arm9/lib/include/math.h
@@ -1,7 +1,8 @@
-#ifndef GUARD_LIBMATH_H
-#define GUARD_LIBMATH_H
+#ifndef GUARD_MATH_H
+#define GUARD_MATH_H
 
-#include "MATH.h"
+#include "dgt.h"
+#include "MATH_pop.h"
 #include "MATH_crc.h"
 #include "MATH_dgt.h"
 
-- 
cgit v1.2.3