aboutsummaryrefslogtreecommitdiff
path: root/sp/src/utils/lzma/C/7zip/Compress/Branch/BranchARMThumb.c
diff options
context:
space:
mode:
authorJohn Schoenick <[email protected]>2015-09-09 18:35:41 -0700
committerJohn Schoenick <[email protected]>2015-09-09 18:35:41 -0700
commit0d8dceea4310fde5706b3ce1c70609d72a38efdf (patch)
treec831ef32c2c801a5c5a80401736b52c7b5a528ec /sp/src/utils/lzma/C/7zip/Compress/Branch/BranchARMThumb.c
parentUpdated the SDK with the latest code from the TF and HL2 branches. (diff)
downloadsource-sdk-2013-master.tar.xz
source-sdk-2013-master.zip
Updated the SDK with the latest code from the TF and HL2 branches.HEADmaster
Diffstat (limited to 'sp/src/utils/lzma/C/7zip/Compress/Branch/BranchARMThumb.c')
-rw-r--r--sp/src/utils/lzma/C/7zip/Compress/Branch/BranchARMThumb.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/sp/src/utils/lzma/C/7zip/Compress/Branch/BranchARMThumb.c b/sp/src/utils/lzma/C/7zip/Compress/Branch/BranchARMThumb.c
new file mode 100644
index 00000000..4e4b04b0
--- /dev/null
+++ b/sp/src/utils/lzma/C/7zip/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] = 0xF0 | ((dest >> 19) & 0x7);
+ data[i + 0] = (dest >> 11);
+ data[i + 3] = 0xF8 | ((dest >> 8) & 0x7);
+ data[i + 2] = (dest);
+ i += 2;
+ }
+ }
+ return i;
+}