Microcomputer with high speed access memory and language processing program execution system
First Claim
1. A microcomputer having a high speed access memory capable of reading out and writing in data at a high speed and a language processing program execution system for analyzing information of an input source program and outputting object information, the language processing program execution system comprising:
- variable memory area analyzing means for calculating variable areas in memory used by subroutines of the source program;
flow graph producing means for producing a flow graph of an interrelation of callings of the subroutines;
maximum variable memory area detecting means for calculating a maximum variable memory area used by a whole program from sizes of the variable memory areas calculated by the variable memory area analyzing means and the flow graph produced by the flow graph producing means; and
output means for outputting the object information with variables allocated in the high speed access memory, when the maximum variable area detecting means is smaller than a memory area of the high speed access memory.
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Abstract
A microcomputer having a high speed access memory and a language processing program execution system capable of producing a compact object including a high speed variable operation is disclosed. As to an input source program, variable areas used by subroutines are calculated by a variable area analyzing part, and a flow graph of an interrelation of callings of the subroutines is produced by a flow graph producing part. Then, the maximum variable area used by a whole program is calculated from the sizes of the variable areas and the flow graph by a maximum variable area detecting part. When the calculated maximum variable area size of the whole program is smaller than the memory size of the high speed access memory, an output part outputs the object information with variables allocated in the high speed access memory.
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2 Claims
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1. A microcomputer having a high speed access memory capable of reading out and writing in data at a high speed and a language processing program execution system for analyzing information of an input source program and outputting object information, the language processing program execution system comprising:
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variable memory area analyzing means for calculating variable areas in memory used by subroutines of the source program; flow graph producing means for producing a flow graph of an interrelation of callings of the subroutines; maximum variable memory area detecting means for calculating a maximum variable memory area used by a whole program from sizes of the variable memory areas calculated by the variable memory area analyzing means and the flow graph produced by the flow graph producing means; and output means for outputting the object information with variables allocated in the high speed access memory, when the maximum variable area detecting means is smaller than a memory area of the high speed access memory. - View Dependent Claims (2)
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Specification