| 单词 | trace routine | 
| 释义 | > as lemmastrace routine  a.  Computing. The detailed examination of the execution of a program or part of one (usually to investigate a fault) with the aid of another program that can cause individual instructions, operands, and results to be printed or displayed as they are reached by the first program; the analysis so obtained; also, a trace program. Frequently attributive, as  trace program,  trace routine. ΘΚΠ society > computing and information technology > programming language > program or code > 			[noun]		 > testing > software to assist trace1957 debugger1964 1957    M. V. Wilkes  et al.  Preparation of Programs for Electronic Digital Computer 		(ed. 2)	 96  				A useful error-diagnosis subroutine..prints the function letters of orders as they are executed... The printed sequence of function letters is sometimes known as a trace. 1960    R. H. Gregory  & R. L. Van Horn Automatic Data-processing Syst. iii. 82 		(caption)	  				Trace of operations in read-write loop using an index register. 1960    R. H. Gregory  & R. L. Van Horn Automatic Data-processing Syst. viii. 271  				A trace routine is used to observe how the object program..operates while it is being executed. 1966    IFIP-ICC Vocab. Information Processing 85  				When a trace program gives output only on selected instructions, or for selected conditions, it is called a snapshot program. 1980    N. Rushby in  Meek  & Heath Guide to Good Programming Practice iii. 84  				Some debugging compilers provide a trace, which can be used simply to follow the program flow from statement to statement, or can include details of each assignment. 1982    Ghezzi  & Jazayeri Programming Language Concepts vii. 221  				After the program has terminated, a trace and an indication of the cause of failure can be produced. < as lemmas | 
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