(Note lack of error checking this is just a sample. The following C function will read a single variable-width integer in UPS format. Each checksum is stored as a little-endian 32-bit integer. everything in the patch before this final checksum itself).

And then redo ' git pull ' or ' git am '. git stash save 'Random changes that are not ready'. Then: The simplest thing for those who cannot decide may be to stash the changes away for later.

open to let you specify both the ROM files path and the patch files path. With recent Git release, you can abort: To restore the original branch and stop patching run ' git am -abort '. If the source and destination file sizes differ, the source file is treated as if it had an infinite number of zero bytes after its actual last byte.Īt the end of the file, there are three CRC32 checksums: of the source file, of the destination file, and of the patch (i.e. First, open the patch software tool, click on Apply a UPS patch to a file. The XOR block is terminated with a zero byte the zero byte also counts against the file pointer. Each hunk consists of a variable-width integer indicating the number of bytes which should be skipped (copied verbatim from the source file), followed by a block of bytes which should be XORed with the source file to obtain a corresponding block of bytes in the destination file.

It was designed as a replacement for IPS.Ī UPS patch file starts with the magic number 'UPS1', followed by the size of the source file and the size of the destination file, both stored as variable-width integers (see below).Īfter that, a series of hunks follows.

Nups patch