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path: root/release/src/linux/linux/scripts/squashfs/lzma/C/7zip/Compress/Branch/BranchPPC.c
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Diffstat (limited to 'release/src/linux/linux/scripts/squashfs/lzma/C/7zip/Compress/Branch/BranchPPC.c')
-rw-r--r--release/src/linux/linux/scripts/squashfs/lzma/C/7zip/Compress/Branch/BranchPPC.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/release/src/linux/linux/scripts/squashfs/lzma/C/7zip/Compress/Branch/BranchPPC.c b/release/src/linux/linux/scripts/squashfs/lzma/C/7zip/Compress/Branch/BranchPPC.c
new file mode 100644
index 00000000..407bae61
--- /dev/null
+++ b/release/src/linux/linux/scripts/squashfs/lzma/C/7zip/Compress/Branch/BranchPPC.c
@@ -0,0 +1,36 @@
+// BranchPPC.c
+
+#include "BranchPPC.h"
+
+UInt32 PPC_B_Convert(Byte *data, UInt32 size, UInt32 nowPos, int encoding)
+{
+ UInt32 i;
+ for (i = 0; i + 4 <= size; i += 4)
+ {
+ // PowerPC branch 6(48) 24(Offset) 1(Abs) 1(Link)
+ if ((data[i] >> 2) == 0x12 &&
+ (
+ (data[i + 3] & 3) == 1
+ // || (data[i+3] & 3) == 3
+ )
+ )
+ {
+ UInt32 src = ((data[i + 0] & 3) << 24) |
+ (data[i + 1] << 16) |
+ (data[i + 2] << 8) |
+ (data[i + 3] & (~3));
+
+ UInt32 dest;
+ if (encoding)
+ dest = nowPos + i + src;
+ else
+ dest = src - (nowPos + i);
+ data[i + 0] = 0x48 | ((dest >> 24) & 0x3);
+ data[i + 1] = (dest >> 16);
+ data[i + 2] = (dest >> 8);
+ data[i + 3] &= 0x3;
+ data[i + 3] |= dest;
+ }
+ }
+ return i;
+}