The output macro source deck copy for use by pass 2 3. So the resultant of the macro code is shown on the right most side of the figure. Data structures the macro names are entered into namtab, namtab contains. A macro consists of a name, a set of formal parameters and a body of code. A macro short for macroinstruction, from greek long in computer science is a rule or pattern that specifies how a certain input sequence often a sequence of characters should be mapped to a replacement output sequence also often a sequence of characters according to a defined procedure. Concurrent algorithms and data structures for manycore. Fourth, we generate the automata codes on ap with a macrobased construction algorithm. Twopass macro processor o twopass macro processor n pass1. Twopass macro processor you may design a twopass macro processor o pass 1. A onepass macro processor that can alternate between macro definition and macro expansion. Concise notes on data structures and algorithms ruby edition christopher fox james madison university 2011. Chapter 4 macro processors basic macro processor functions.
This means that the algorithm should specify how decisions are made at every. Data structures for onepass macro processor deftab definition table stores the macro definition including macro prototype and macro body comment lines are omitted. A parameterized macro is a macro that is able to insert given objects into its expansion. A macro processor is described which can be used with al. Namtab stores macro names serves as an index to deftab. Macro definitions are typically located at the start of a program. It is easy to design a twopass macro processor in which all macro definitions are processed during the first pass, and all macro invocation statements are expanded during the second pass. Basic macro processor functions macro definition and expansion macro processor algorithm and data structures machineindependent. The definition of a data structure is a bit more involved we begin with the notion of an. As a simple example, in the c programming language, this is a typical macro that is not a parameterized macro. In sociology, macrostructures, often simply called structure, correspond to the overall organization of society, described at a rather largescale level, featuring for instance social groups, organizations, institutions, nationstates and their respective properties and relations.
This restriction does not create any real inconvenience. If it is a macro pseudoop, the entire macro definition except this macro line is stored in mdt. There are many data structure can handle the character part. A onepass macro processor that alternate between macro definition and macro expansion in a recursive way is able to handle recursive macro definition. The arguments are stored in argtab according to their. Understanding the macro aspects of data structures software. The term data structure is used to denote a particular way of organizing data for particular types of operation. Computer science e119 data structures harvard university extension school fall 2012 syllabus overview a survey of fundamental data structures for information processing, including lists, stacks, queues, trees, and graphs.
Every macro begins with macro keyword at the beginning and ends with the endm end macro. There are a lot of programs that still demand something like this, and because storage devices are larger and processes are faster, the constant factors for common code parts are not as important as they were twenty years ago. However, because of the onepass structure, the definition of a macro must appear in the source program before any statements that invoke that macro. Macro is that the section of code that the programmer writes defines once, and then can use or invokes many times. Dec 06, 2011 algorithm pass1 of macro processor makes a linebyline scan over its input. Because of the onepass structure, the definition of a macro must appear in the source program before any statements that invoke that macro. Ssv pdf notes unit 6 cse branch downloads smartworld. It made clear that decisions about structuring data cannot be made without knowledge of the algorithms applied to the data and that, vice versa, the structure and choice of algorithms often depend strongly on the structure. The macro processor places the text on top of the input stack and waits for the word scanner to begin tokenization. Submacro definitions are only processed when an invocation of their supermacros. Using macros in c to define data structures stack overflow.
I am trying to wrap my head around the concept of using macros to define data structure operations. A finite sequence of steps for accomplishing some computational. Macro processors macro processor algorithm and data structures for onepass macro processor, the definition of a. Data structures required for macro definition processing. A baseband processor for software defined radio terminals by hyunseok lee chair. Aug 11, 2015 here is implementation of macro processor in c. In this case, societal macrostructures are distinguished from societal microstructures consisting of the. Shortest path problem find the shortest paths from one vertex to all other vertices. We use this approach to develop a framework, robotomata, for approximate pattern matching apm applications. Basic macro processor functions macro invocation often referred to as a macro call need the name of the macro instruction begin invoked and the arguments to be used in expanding the macro expanded program figure 5. In the library all operations are defined as macros. But in most of time its a overkill because of complexity.
It made clear that decisions about structuring data cannot be made without knowledge of the algorithms applied to the data and that, vice versa, the structure and choice of algorithms often depend strongly on the structure of the underlying data. Ch4 macro processors macro computer science central. And now it should be clear why we study data structures and algorithms together. In particular the goal of this paper is to explore the algorithm and data structure design space of. Macro definition and expansion macro processor algorithm and data structures. We have chosen to organize most of the material by problem domain and not by solution technique. Here you will need to provide assembly program containing macro as input in macin.
Source code in the textbook can be found by following the link. Each data structure and each algorithm has costs and bene. Fourth, we generate the automata codes on ap with a macro based construction algorithm. Practitioners need a thorough understanding of how to assess costs and bene. The left block shows the macro definition and the right block shows the expanded macro replacing the macro call with its block of executable instruction. A macro prototype statement one or more model statements macro preprocessor statements the macro prototype statement declares the name of a macro and the names and kinds of its parameters. A course in data structures and algorithms is thus a course in implementing abstract data. The word scanner reads the generated text from the input stack, and tokenizes it.
Macro processor designs are not directly related to the computer architecture on which it runs. All macro invocation statements are expanded during the second pass. References to the macro instruction parameters are converted to a positional notation for efficiency in substituting arguments. Basic macro processor functions macro definitions and expansion, macro processor algorithm and data structures, machineindependent macro processor features concatenation of macro parameters, generation of unique. Algorithm is a stepbystep procedure, which defines a set of instructions to be executed in a certain order to get the desired output. In particular the goal of this paper is to explore the algorithm and data structure design space of relation algebra operations for a specii c instance of a parallel processor architecture nvidia fermi c2050 and develop strategies that can be adapted to other processors as well. System software vtu notes pdf ss pdf vtu smartzworld. Assemblersbasic assembler functions a simple sic assembler assembler algorithm and data structures machine dependent assembler features instruction formats and addressing modes. Basic macro processor functions macro definitions and expansion, macro processor algorithm and data structures, machineindependent macro processor features concatenation of macro parameters, generation of unique labels, conditional macro expansion, keyword macro parameters, macro processor design options recursive. A macro is a unit of specification for program generation through expansion. Unitivmacro processor sri eshwar free download as pdf file. Using macro instructions programmer can leave the mechanical details to be handled by the macro processor.
Algorithms applications 5 arithmetic operations 2 array 8 basics 27 compiler design 1 control statements 4 conversion functions 1 data. The use of a macro name with a set of actual parameters is replaced by some code generated. Here you can download the power system software vtu notes pdf ss pdf vtu of as per vtu syllabus. Macro calling in high level programming languages c programming. Feb 21, 2018 onepass macro processor a onepass macro processor that alternate between macro definition and macro expansion is able to handle macro in macro. Third, we extend a group of building blocks to a cascadable ap macro by adding and merging inputoutput ports. In other words, you have to have some kind of markup language. Macro processor algorithm andmacro processor algorithm and data structuresdata structures because of the onepass structure, the definition of a macro must appear in the source ppg yrogram before any statements that invoke that macro three main data structures involved in anthree main data structures involved in an onepass macro processor. The name is entered into macro name table along with a pointer to the first location of mdt entry of. Macro processor are used in order that programmers can repeat identical parts of their program macro facility can be used. Twopass macro processor would not allow the body of one macro instruction to contain definitions of other macros. However, using programmable hardware for sdr terminals has been.
Macro processor replace each macro instruction with the corresponding group of source language statements. Algorithms are generally created independent of underlying languages, i. Given the same input data, two people following the algorithm should produce the exact same output. Algorithms applications 5 arithmetic operations 2 array 8 basics 27 compiler design 1 control statements 4 conversion functions 1 data structures 12 data type 1 date functions 1 file 36 keywords 1 loops 1 math functions 30 math snippets 43 memory management 3 misc. Macro processors macro processor algorithm and data. The following are the data bases used by the two passes of the macro processor. The mapping process that instantiates transforms a macro use into a specific. Macro processor parameter computer programming macro. Understanding the macro aspects of data structures. The macro processor executes the compiled %do instructin and recognizes that the next item is text.
This requires an understanding of the principles of algorithm analysis, and also an. Generally it doesnt come as a separate program but as a bundle to either assembler or compiler. The third data structure is an argument table argtab, which is used during the expansion of macro invocations. What is the scope and demand of data structures and. The macro processor provides a list data structure for this. A generalpurpose macro processor or general purpose preprocessor is a macro processor that is not tied to or integrated with a particular language or piece of software a macro processor is a program that copies a stream of text from one place to another, making a systematic set. Macro processor overview basic functions features machine independent. For the richtext part, your data structure have to save two things. By exploiting a common construction found in most nonblocking data structures, we created a move operation that can atomically move elements between different types of nonblocking data structures, without requiring a speci. Pdf the fhdl florida hardware design language macro processor provides a mechanism for extending the.
Relational algorithms for multibulksynchronous processors. Pdf a language independent macroprocessor researchgate. Pattern matching algorithms brute force, the boyer moore algorithm, the knuthmorrispratt algorithm, standard tries, compressed tries, suffix tries. System software and machine architecture the simplified instructional computer sic machine architecture data and instruction formats addressing modes instruction sets io and programming. The following code is a simple example to use the built in list library in freebsd. Expand all macro invocation statements however, onepass may be enough. Jun 06, 2011 macro processor is a program that lets you define the code that is reused many times giving it a specific macro name and reuse the code by just writing the macro name only. Computer science e119 data structures harvard university. A generalpurpose macro processor or general purpose preprocessor is a macro processor that is not tied to or integrated with a particular language or piece of software a macro processor is a program that copies a stream of text from one place to another, making a systematic set of replacements as it does so. Algorithm pass1 of macro processor makes a linebyline scan over its input. The structure of limp allows it to be used as a pre. The macro name table mnt, used to store the names of defined macros. This gives the macro some of the power of a function.
Macro processor is a program that lets you define the code that is reused many times giving it a specific macro name and reuse the code by just writing the macro name only. Pseudo code tutorial and exercises teacher s version pseudocode is an. Algorithm procedure define called when the beginning of a macro definition is recognized. Macro expansion assembly statement replace macro as a result of macro call note actual parameter get substituted instead of formal parameter and as a result the macro is said to be expanded eg.
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