The Boeing Company

Craig H Sowadski

Jonathan Nicholas Hotra

Timothy James Dale

Glenn Alan Patterson

Paul Murray

Kenn R Luecke

Albert Portillo

Roland E Mah

Kevin A Grider

Jill McLean

John L Henroid

Stephen L Oliver, Jr

Villy Angelico

Steve A Kern

E Manow Seapoe, Jr

William Krekeler

Bradley J Trapp

Rachel Ertl

Randall J Krohn

A host computer for virtualizing a target multicore processor includes a host CPU and a host memory storing a virtual time object and a VM, the VM including target code. The host CPU executes the plurality of threads in parallel on corresponding virtual cores, including a first thread executing on a first virtual core and a second thread executing on a second virtual core. The VM assigns a designation to the first virtual core to increment the virtual time object by a first count of a first plurality of instructions executed in the first thread over a first duration. The VM moves the designation to the second virtual core in response to detecting an event that defines an end of the first duration. The second virtual core increments the virtual time object by a second count of instructions executed in the second thread over a second duration.

System and method of timekeeping for a virtual machine having multiple virtual processing cores

A host computer for emulating a target system includes a host memory, a CPU, and a host GPU. The host memory is configured to store a library of graphics functions and a VM. The VM includes a section of emulated memory storing target code configured to execute on the target system. The CPU is configured to execute the VM to emulate the target system. The VM is configured to execute the target code and intercept a graphics function call in the target code. The VM is further configured to redirect the graphics function call to a corresponding graphics function in the library of graphics functions stored in the host memory. The host GPU is configured to execute the corresponding graphics function to determine at least one feature configured to be rendered on a display coupled to the host GPU.

Virtual machine for virtualizing graphics functions

A method of testing a design of a satellite payload transponder with modules of radio frequency (RF) communications circuitry includes executing a modeling application for establishing a modeling environment for generating a virtual satellite payload transponder and virtual test equipment. The virtual satellite payload transponder has virtual modules of RF communications circuitry, with functionality equivalent to that of the satellite payload transponder with modules of RF communications circuitry. The virtual test equipment has functionality equivalent to that of physical test equipment in conjunction with modular test system software. The modeling environment establishes an executable block diagram for performing a simulation of executed satellite payload transponder command, RF signal performance and telemetry response testing, utilizing a given version of the modular test system software corresponding to the modules of RF communications circuitry of the design of the satellite payload transponder.

Method and apparatus for testing RF performance of a satellite wiring harness and signal processing units

Growing community of inventors

House Springs, MO, United States of America

Craig H Sowadski