Delta file with reversing data

A processing system for processing instructions in a delta file, received at an input of the processing system, to generate a binary target file from a binary source file, and for processing the instructions in the delta file to regenerate the binary source file from the binary target file,

• wherein the delta file comprises:
• one or more copy instructions that instruct the processing system to include one or more binary copy strings from the binary source file in the binary target file;
• one or more skip instructions, each comprising a source address operand;
• and
• reversing data for regenerating for regenerating all of the binary source file that is outside the one or more binary copy strings,
• wherein the reversing data is received as part of the delta file;
• and
• wherein the processing system comprises dedicated hardware logic for processing the delta file, or comprises a processor and a memory storing interpreter software for execution by the processor, whereby the processing system is configured to process the delta file to generate the binary target file from the binary source file by:
• reading the one or more binary copy strings from the binary source file and including the one or more binary copy strings in the binary target file, and
• wherein the processing system is configured to process the delta file to create a regenerated binary source file, identical to the binary source file, from the binary target file by:
• reading the one or more binary copy strings from the binary target file and including the one or more binary copy strings in the regenerated binary source file;
• and
• using the reversing data and the source-address operand of each of the one or more skip instructions to include, in the regenerated binary source file, all of the binary data of the binary source file that is outside the one or more binary copy strings.

A non-transitory computer-readable medium having stored thereon a delta file comprising instructions which, when executed by a processing system to which the delta file is transferred, cause the processing system to generate a binary target file from a binary source file, wherein the delta file comprises:

• one or more copy instructions that instruct the processing system to include one or more binary copy strings from the binary source file in the binary target file;
• one or more skip instructions, each comprising a source-address operand;
• and
• reversing data for use with the source-address operand of each of the one or more skip instructions to regenerate all of the binary source file that is outside the one or more binary copy strings.