Compression of program instructions using advanced sequential correlation
AssigneeMicrosoft Corporation
InventorsDarko Kirovski, Milenko Drinic, Hoi Huu Vo
Life of this patent
Estimating the term…
Loading patent…
AssigneeMicrosoft Corporation
InventorsDarko Kirovski, Milenko Drinic, Hoi Huu Vo
Estimating the term…
Compressing program binaries with reduced compression ratios. One or several pre-processing acts are performed before performing compression using a local sequential correlation oriented compression technology such as PPM, or one of its variants or improvements. One pre-processing act splits the binaries into several substreams that have high local sequential correlation. Such splitting takes into consideration the correlation between common fields in different instructions as well as the correlation between different fields in the same instruction. Another pre-processing reschedules binary instructions to improve the degree of local sequential correlation without affecting dependencies between instructions. Yet another pre-processing act replaces common operation codes in the instruction with a symbols from a second alphabet, thereby distinguishing between operation codes that have a particular value, and other portions of the instruction that just happen to have the same value. Local sequential correlation compression such as PPM is then performed.
In a processing system that has access to a sequential list of executable instructions, a method for compressing the executable instructions, the method comprising the following:
A computer program product for using in a processing system that has access to a sequential list of executable instructions, the computer program product for implementing a method for compressing the executable instructions, the computer program product comprising one or more computer-readable media having stored thereon the following:
In a processing system that has access to a sequential list of executable instructions, a method for compressing the executable instructions, the method comprising the following:
In a processing system that has access to a sequential list of executable instructions, a method for decompressing the executable instructions, the method comprising the following:
A computer program product of use in a processing system that has access to a sequential list of executable instructions, the computer program product for implementing a method for decompressing the executable instructions, the computer program product comprising one or more computer-readable media having stored thereon the following:
In a processing system that has access to a sequential list of instructions in an original sequence, a method for compressing the instructions, the method comprising the following:
A computer program product for use in a processing system that has access to a sequential list of instructions in an original sequence, the computer program product for implementing a method for compressing the instructions, the computer program product comprising one or more computer-readable media having stored thereon the following:
In a processing system that has access to a sequential list of instructions in an original sequence, a method for compressing the instructions, the method comprising the following:
Dependencies are inferred from the claim text.