diff options
| author | John Schoenick <[email protected]> | 2015-09-09 18:35:41 -0700 |
|---|---|---|
| committer | John Schoenick <[email protected]> | 2015-09-09 18:35:41 -0700 |
| commit | 0d8dceea4310fde5706b3ce1c70609d72a38efdf (patch) | |
| tree | c831ef32c2c801a5c5a80401736b52c7b5a528ec /sp/src/utils/lzma/C/7zip/Compress/Branch/BranchPPC.c | |
| parent | Updated the SDK with the latest code from the TF and HL2 branches. (diff) | |
| download | source-sdk-2013-master.tar.xz source-sdk-2013-master.zip | |
Diffstat (limited to 'sp/src/utils/lzma/C/7zip/Compress/Branch/BranchPPC.c')
| -rw-r--r-- | sp/src/utils/lzma/C/7zip/Compress/Branch/BranchPPC.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/sp/src/utils/lzma/C/7zip/Compress/Branch/BranchPPC.c b/sp/src/utils/lzma/C/7zip/Compress/Branch/BranchPPC.c new file mode 100644 index 00000000..a173eb15 --- /dev/null +++ b/sp/src/utils/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; +} |