Creative Technology Corporation

Eric W Lange

Stephen Hoge

Sam Dicker

Vince Vu

Steven Hoge

A method for conserving memory storage during the execution of a interpolation operation uses a pool of interpolation commands. When a interpolation operation is requested, it is performed using one of the pooled interpolation commands. If none of the pooled interpolation commands are available, the interpolation command having the smallest difference between its interpolated value and final value is selected, and its interpolated value converted to its final value. The selected interpolation command is then reassigned to interpolate the requested data.

Method for conserving memory storage during an interpolation operation

A method and system for re-using special purpose registers as general purpose registers utilized a special variable type to indicate that a variable may safely be stored in a special purpose register. A loader program maintains the table indicating the availability of special purpose registers for variable storage and loads a variable of the special type to an available special purpose register.

Re-use of special purposed registers as general purpose registers

A method and an system for communication between components of a computer system, such a plurality of computer soft-ware applications stored in a memory, that features uniquely associating each of the plurality of computer applications with a general purpose registers. Each of the general-purpose registers is in data communication with a common interrupt port of a processor via an interrupt control register and has a predetermined value associated therewith. A hardware interrupt is initiated by the interrupt control register in response to varying the predetermined value associated with one or more of the general purpose registers. In response to the interrupt, the processor polls each of the general purpose registers and initiates a callback function to the application associated with the general purpose register with the varied predetermined value. Although the predetermined value may consist of any number, typically the predetermined value is zero.

Interrupt control for multiple programs communicating with a common interrupt by associating programs to GP registers, defining interrupt register, polling GP registers, and invoking callback routine associated with defined interrupt register

A method for conserving processor registers during the execution of a program in which short term data having a short processing period and long term data having a long processing period are processed. The method includes the acts of: providing a program having a first address space for addressing the short term data and a second address space for addressing the long term data, defining within the processor a first plurality of pooled registers for storing the short term data, executing said program, allocating, responsive to the program, at least one of the pooled registers to the first address space, controlling, via said program, the allocated pool register for the duration of said short processing period, and terminating program control of the allocated pool register upon the expiration of said short processing period.

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Campbell, CA, United States of America

Eric W Lange