Abstract: The invention is a technique that allows very efficient execution of an instruction set simulator (ISS) when certain code fragments are simulated. They occur frequently in operating systems, when a processor waits for something to occur. These loops perform very little, if any, computation. An automatic analysis of the code fragments is performed to determine whether they can be transformed to “fast forward” when execution loops through the code fragment. This is done by the creation of a function g, that takes a number of state changes as an input and can compute the state at a time T by a single application of the function, rather than applying the next state function repeatedly until time T is reached. An important aspect of the resulting optimization is that it produces exactly the same simulated result as compared to when it is not applied, i.e. the optimization is non-intrusive.

Abstract: Support leg truck with wheels or rollers in the front edges of the support legs and in the rear end, with a drive wheel on one side and a pivot wheel on the other side, one support leg being more strongly dimensioned than the other one so that when load is subjected the greatest force is taken by the more strongly dimensioned support leg. Advantageously the stronger support leg is arranged diagonally in relation to the drive wheel.

Abstract: A load carrier that includes a load carrier bar with a load carrier foot at each end of the load carrier bar. Each load carrier foot has a fixed clamping jaw and a movable clamping jaw configured to be arranged on an upper side and an opposite lower side of the respective roof rails and to cooperate with a clamping device that is configured to move the movable clamping jaw towards the fixed clamping jaw. The movable clamping jaw is pivotally connected at the load carrier foot and in a first mounting position. The movable clamping jaw is firmly connected to at least one guiding protrusion, located on a distance from the movable clamping jaw and in a first mounting position is arranged so that the distance between the guiding protrusions, which are located at each end of the load carrier, is larger than the distance between the roof rails.

Abstract: The invention relates to a computer program interpreter and a method for the same, using statistics to group (SR89, SR17 . . . SR6; SR4, SR34 . . . SR16) frequently used service routines (SR) in the same program function and to control encoding of instructions. Frequently used service routines are assigned shorter codes thus enhancing the performance of a simulator or emulator.

Abstract: A method and system for simulating in software a digital computer system by performing virtual to physical translations of simulated instructions is disclosed. The number of virtual to physical translations using hash lookups is reduced by analyzing sequences of the instructions for determining with high probability whether the memory accesses made by the instructions perform the same virtual to physical translation in order to reduce the number of necessary hash lookups to enable faster simulation performance.

Abstract: The invention relates to a computer program interpreter and a method for the same, using statistics to group (SR89, SR17 . . . SR6; SR4, SR34 . . . SR16) frequently used service routines (SR) in the same program function and to control encoding of instructions. Frequently used service routines are assigned shorter codes thus enhancing the performance of a simulator or emulator.

Abstract: The present invention discloses method and system for a multimode simulator having an emulation core with improved performance. In an embodiment of the invention, the overhead caused by the exclusive use of the simulation technique using one instruction-at-a-time interpretation is reduced by additionally using binary translation for executed blocks of interpreted instructions (i.e. that contain no jumps out of the block) from the same instruction set architecture description. Since performing translations too frequently can undesirably increase overhead by overloading the cache, the binary translation is only performed for blocks that are executed frequently. Once the blocks are translated e.g. by forming the block from instructions via templates and generating the collective code, the overall simulator performance is significantly improved by running the blocks instead of running the instructions one-at-a-time.

Abstract: The invention relates to a computer program interpreter and a method for the same, using statistics to group (SR89, SR17 . . . SR6; SR4, SR34 . . . SR16) frequently used service routines (SR) in the same program function and to control encoding of instructions. Frequently used service routines are assigned shorter codes thus enhancing the performance of a simulator or emulator.