diff --git a/include/codec/seadHashCRC16.h b/include/codec/seadHashCRC16.h
index cc1b006c9..56ae655f9 100644
--- a/include/codec/seadHashCRC16.h
+++ b/include/codec/seadHashCRC16.h
@@ -14,15 +14,19 @@ class HashCRC16
     };
 
     static u32 calcHash(const void* ptr, u32 size);
+#if SEAD_HASHCRC_WITHCONTEXT
     static u32 calcHashWithContext(Context* context, const void* ptr, u32 size);
+#endif
 
     static u32 calcStringHash(const char* str);
     static u32 calcStringHash(const SafeString& str) { return calcStringHash(str.cstr()); }
+#if SEAD_HASHCRC_WITHCONTEXT
     static u32 calcStringHashWithContext(Context* context, const char* str);
     static u32 calcStringHashWithContext(Context* context, const SafeString& str)
     {
         return calcStringHashWithContext(context, str.cstr());
     }
+#endif
 
     static void initialize();
 
diff --git a/include/codec/seadHashCRC32.h b/include/codec/seadHashCRC32.h
index 1f2675b78..d331d0dbd 100644
--- a/include/codec/seadHashCRC32.h
+++ b/include/codec/seadHashCRC32.h
@@ -14,15 +14,19 @@ class HashCRC32
     };
 
     static u32 calcHash(const void* ptr, u32 size);
+#if SEAD_HASHCRC_WITHCONTEXT
     static u32 calcHashWithContext(Context* context, const void* ptr, u32 size);
+#endif
 
     static u32 calcStringHash(const char* str);
     static u32 calcStringHash(const SafeString& str) { return calcStringHash(str.cstr()); }
+#if SEAD_HASHCRC_WITHCONTEXT
     static u32 calcStringHashWithContext(Context* context, const char* str);
     static u32 calcStringHashWithContext(Context* context, const SafeString& str)
     {
         return calcStringHashWithContext(context, str.cstr());
     }
+#endif
 
     static void initialize();
 
diff --git a/include/seadVersion.h b/include/seadVersion.h
index 2e955911a..4d0cc6074 100644
--- a/include/seadVersion.h
+++ b/include/seadVersion.h
@@ -37,6 +37,8 @@
 ///     Add isExistFileImpl_() to sead::ArchiveRes
 /// SEAD_ARCHIVERES_ISCONST
 ///     Make most functions in sead::ArchiveRes const
+/// SEAD_HASHCRC_WITHCONTEXT:
+///     Add calcHashWithContext and calcStringHashWithContext to HashCRC16/32
 
 #if SEAD_VERSION == SEAD_VERSION_BOTW
 #define SEAD_SAFESTRING_NONVIRTUAL 0
@@ -51,6 +53,7 @@
 #define SEAD_ARCHIVERES_TRYGETFILEPATH 0
 #define SEAD_ARCHIVERES_ISEXISTFILEIMPL 1
 #define SEAD_ARCHIVERES_ISCONST 1
+#define SEAD_HASHCRC_WITHCONTEXT 1
 #elif SEAD_VERSION == SEAD_VERSION_SMO
 #define SEAD_SAFESTRING_NONVIRTUAL 0
 #define SEAD_RESOURCEMGR_TRYCREATE_NO_FACTORY_NAME 0
@@ -64,6 +67,7 @@
 #define SEAD_ARCHIVERES_TRYGETFILEPATH 0
 #define SEAD_ARCHIVERES_ISEXISTFILEIMPL 0
 #define SEAD_ARCHIVERES_ISCONST 0
+#define SEAD_HASHCRC_WITHCONTEXT 0
 #elif SEAD_VERSION == SEAD_VERSION_SPL3 or SEAD_VERSION == SEAD_VERSION_TOTK or                    \
     SEAD_VERSION == SEAD_VERSION_SMBW
 #define SEAD_SAFESTRING_NONVIRTUAL 1
@@ -78,6 +82,7 @@
 #define SEAD_ARCHIVERES_TRYGETFILEPATH 1
 #define SEAD_ARCHIVERES_ISEXISTFILEIMPL 1
 #define SEAD_ARCHIVERES_ISCONST 1
+#define SEAD_HASHCRC_WITHCONTEXT 1
 #endif
 
 /// feature-specific macros
diff --git a/modules/src/codec/seadHashCRC16.cpp b/modules/src/codec/seadHashCRC16.cpp
index 503182fa7..d45ee41a2 100644
--- a/modules/src/codec/seadHashCRC16.cpp
+++ b/modules/src/codec/seadHashCRC16.cpp
@@ -19,6 +19,7 @@ void HashCRC16::initialize()
     sInitialized = true;
 }
 
+#if SEAD_HASHCRC_WITHCONTEXT
 u32 HashCRC16::calcHash(const void* ptr, u32 size)
 {
     Context ctx;
@@ -38,6 +39,22 @@ u32 HashCRC16::calcHashWithContext(Context* context, const void* ptr, u32 size)
     return hash;
 }
 
+#else
+
+u32 HashCRC16::calcHash(const void* ptr, u32 size)
+{
+    if (!sInitialized)
+        initialize();
+
+    u32 hash = 0;
+    const u8* data = static_cast<const u8*>(ptr);
+    for (u32 i = 0; i < size; i++)
+        hash = sTable[data[i] ^ (hash & 0xFF)] ^ (hash >> 8);
+    return hash;
+}
+#endif
+
+#if SEAD_HASHCRC_WITHCONTEXT
 u32 HashCRC16::calcStringHash(const char* str)
 {
     Context ctx;
@@ -56,4 +73,18 @@ u32 HashCRC16::calcStringHashWithContext(Context* context, const char* str)
     return hash;
 }
 
+#else
+
+u32 HashCRC16::calcStringHash(const char* str)
+{
+    if (!sInitialized)
+        initialize();
+
+    u32 hash = 0;
+    while (*str)
+        hash = sTable[*str++ ^ (hash & 0xFF)] ^ (hash >> 8);
+    return hash;
+}
+#endif
+
 }  // namespace sead
diff --git a/modules/src/codec/seadHashCRC32.cpp b/modules/src/codec/seadHashCRC32.cpp
index 99fa39afa..f7f2dfb01 100644
--- a/modules/src/codec/seadHashCRC32.cpp
+++ b/modules/src/codec/seadHashCRC32.cpp
@@ -19,6 +19,7 @@ void HashCRC32::initialize()
     sInitialized = true;
 }
 
+#if SEAD_HASHCRC_WITHCONTEXT
 u32 HashCRC32::calcHash(const void* ptr, u32 size)
 {
     Context ctx;
@@ -38,6 +39,22 @@ u32 HashCRC32::calcHashWithContext(Context* context, const void* ptr, u32 size)
     return ~hash;
 }
 
+#else
+
+u32 HashCRC32::calcHash(const void* ptr, u32 size)
+{
+    if (!sInitialized)
+        initialize();
+
+    u32 hash = -1;
+    const u8* data = static_cast<const u8*>(ptr);
+    for (u32 i = 0; i < size; i++)
+        hash = sTable[data[i] ^ (hash & 0xFF)] ^ (hash >> 8);
+    return ~hash;
+}
+#endif
+
+#if SEAD_HASHCRC_WITHCONTEXT
 u32 HashCRC32::calcStringHash(const char* str)
 {
     Context ctx;
@@ -56,4 +73,18 @@ u32 HashCRC32::calcStringHashWithContext(Context* context, const char* str)
     return ~hash;
 }
 
+#else
+
+u32 HashCRC32::calcStringHash(const char* str)
+{
+    if (!sInitialized)
+        initialize();
+
+    u32 hash = -1;
+    while (*str)
+        hash = sTable[*str++ ^ (hash & 0xFF)] ^ (hash >> 8);
+    return ~hash;
+}
+#endif
+
 }  // namespace sead