diff options
author | Igor Pavlov <ipavlov@users.sourceforge.net> | 2007-01-20 03:00:00 +0300 |
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committer | Kornel LesiĆski <kornel@geekhood.net> | 2016-05-28 02:15:49 +0300 |
commit | d9666cf046a8453b33b3e2fbf4d82295a9f87df3 (patch) | |
tree | c722ed19b844b53042aec0c1d7d2f8381140a5ed /C/Compress/Branch/BranchARMThumb.c | |
parent | 804edc5756fede54dbb1aefda6d39d306111938d (diff) |
4.44 beta
Diffstat (limited to 'C/Compress/Branch/BranchARMThumb.c')
-rwxr-xr-x | C/Compress/Branch/BranchARMThumb.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/C/Compress/Branch/BranchARMThumb.c b/C/Compress/Branch/BranchARMThumb.c new file mode 100755 index 00000000..aab9c7a1 --- /dev/null +++ b/C/Compress/Branch/BranchARMThumb.c @@ -0,0 +1,35 @@ +/* BranchARMThumb.c */ + +#include "BranchARMThumb.h" + +UInt32 ARMThumb_Convert(Byte *data, UInt32 size, UInt32 nowPos, int encoding) +{ + UInt32 i; + for (i = 0; i + 4 <= size; i += 2) + { + if ((data[i + 1] & 0xF8) == 0xF0 && + (data[i + 3] & 0xF8) == 0xF8) + { + UInt32 src = + ((data[i + 1] & 0x7) << 19) | + (data[i + 0] << 11) | + ((data[i + 3] & 0x7) << 8) | + (data[i + 2]); + + src <<= 1; + UInt32 dest; + if (encoding) + dest = nowPos + i + 4 + src; + else + dest = src - (nowPos + i + 4); + dest >>= 1; + + data[i + 1] = (Byte)(0xF0 | ((dest >> 19) & 0x7)); + data[i + 0] = (Byte)(dest >> 11); + data[i + 3] = (Byte)(0xF8 | ((dest >> 8) & 0x7)); + data[i + 2] = (Byte)dest; + i += 2; + } + } + return i; +} |