diff -r ea891871f481 -r bb5522e88ab2 misc/libphysfs/lzma/C/Compress/Branch/BranchPPC.c --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/misc/libphysfs/lzma/C/Compress/Branch/BranchPPC.c Mon Apr 10 12:06:43 2017 -0400 @@ -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] = (Byte)(0x48 | ((dest >> 24) & 0x3)); + data[i + 1] = (Byte)(dest >> 16); + data[i + 2] = (Byte)(dest >> 8); + data[i + 3] &= 0x3; + data[i + 3] |= dest; + } + } + return i; +}