Microsoft Technology Licensing, LLC

Henry Morgan

Arun Upadhyaya Kishan

Ten H Tzen

Pedro Miguel Sequeira De Justo Teixeira

Youssef M Barakat

Terry Jack Mahaffey

YongKang Zhu

Christopher Martin McKinsey

Michal Bortnik

Steven Dale Lamb

Vincent H Curley

Jerry Alan Johnson

David Shaw

During source code compilation to a first processor instruction set architecture (ISA), a compiler encounters a memory ordering constraint specified in the source code. The compiler generates binary emulation metadata that is usable during emulation of emitted machine code instructions of the first ISA, in order to enforce the memory ordering constraint within corresponding machine code instructions of a second ISA. An emulator utilizes this binary emulation metadata during emulation of a resulting executable image at a processor implementing the second ISA. When the emulator encounters a machine code instruction in the image that performs a memory operation, it identifies an instruction memory address corresponding to the instruction. The emulator determines whether the binary emulation metadata identifies the instruction memory address as being associated with a memory ordering constraint. If so, the emulator emits machine code instruction(s) in the second ISA that perform the memory operation using a memory barrier.

Memory ordering annotations for binary emulation

Examples described herein emulate a processing architecture using multiple translations of the same source binary. A first translation binary includes compiler optimizations not present in a second translation binary. During runtime, a dispatcher directs control flow of a CPU when branch instructions are reached. Specifically, a dispatcher directs a CPU to execute instructions in the first translation binary, and accesses the second translation binary when an instruction is to a target that is not addressable in the first translation binary. The first and second translation binaries enable a target processing architecture to emulate a source processing architecture without just-in-time compilation or other runtime interpretation.

Processor emulation using multiple translations

Methods and computer-readable media are provided that enable a game console to send, receive and process a customized message. In one such method, an instruction to generate a message to be sent to a receiving game console is received. The message, which includes a recipient identifier, text relating to a game-specific function, a custom action associated with the game-specific function and a data payload that is adapted to be processed by a receiving destination is generated. The message is sent to a receiving game console identified by the recipient identifier by way of a game console messaging service.

Custom message actions

Mechanisms for visual identification of a user in a gaming environment. For example, a digital image is used to identify a user, whether the user is on-line or off-line. This digital image is easily verifiable as an appropriate and non-offensive image because it May come form a controlled digital image source (or set of sources). The digital image is also revocable in a variety of gaming environment contexts by a gaming authority. Lastly, the digital image is changeable depending on the context of the gaming environment, in one aspect, being configured to be visible to the entire gaming environment in one form, and being visible to a subset of the gaming environment in another form.

Visual identity mechanisms

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Henry Morgan