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The OO-dBASE compiler was no more able to run under Windows than was dBASE IV, causing Borland to abandon both code bases in 1993 and spin up a new team to create a new product, eventually delivered as dBASE for Windows in 1994.
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compiler and was
When AA was ported to the English Electric KDF9 computer, the character set was changed to ISO and that compiler has been recovered from an old paper tape by the Edinburgh Computer History Project and is available online, as is a high-quality scan of the original Edinburgh version of the Atlas Autocode manual.
Later, an AMOS compiler was developed that further increased speed.
Bootstrapping in program development began during the 1950s when each program was constructed on paper in decimal code or in binary code, bit by bit ( 1s and 0s ), because there was no high-level computer language, no compiler, no assembler, and no linker.
The first compiler was written by Grace Hopper, in 1952, for the A-0 programming language.
It was designed to be compiled using a relatively straightforward compiler, to provide low-level access to memory, to provide language constructs that map efficiently to machine instructions, and to require minimal run-time support.
The next step was to attempt to bootstrap the compiler on a Windows system, requiring sufficient emulation of Unix to let the GNU configure shell script run.
Another issue is that the score reported does not include information which is critical when comparing systems such as which compiler was used, and what optimizations.
Dijkstra was known to be a fan of ALGOL 60, and worked on the team that implemented the first compiler for that language.
Dijkstra and Jaap Zonneveld, who collaborated on the compiler, agreed not to shave until the project was completed.
This was the first optimizing compiler, because customers were reluctant to use a high-level programming language unless its compiler could generate code whose performance was comparable to that of hand-coded assembly language.
It had an optimizing compiler that was quite good for minicomputers of its time.
Univac also offered a compiler for the 1100 series known as Fortran V. A spinoff of Univac Fortran V was Athena Fortran.
A pioneer in the field, she was one of the first programmers of the Harvard Mark I computer, and developed the first compiler for a computer programming language.
With the release of MS-DOS 5. 0, GW-BASIC's place was eventually taken by QBasic, the interpreter part of the separately available QuickBASIC compiler.
Oribasius was the greatest Byzantine compiler of medical knowledge.
The compiler was designed to support parallel POSIX programming in C / C ++, Fortran 77 / 90, and Ada.
According to principal architect Stephen P. Morse, this was a result of a more software centric approach than in the design of earlier Intel processors ( the designers had experience working with compiler implementations ).
Although this feature existed in the original INTERCAL compiler, it was undocumented.
By 1997, it was apparent that the IA-64 architecture and the compiler were much more difficult to implement than originally thought, and the delivery of Merced began slipping.
In addition, the EPIC concept depends on compiler capabilities that had never been implemented before, so more research was needed.
compiler and no
If, at any time during the assignment pass, the compiler finds that there are no more index words available for assignment, the warning message `` No More Index Words Available '' will be placed in the object program listing, the table will be altered to show that index words 1 through 96 are available, and the assignment will continue as before.
If the compiler finds that there are no more electronic switches available for assignment, the warning message `` No More Electronic Switches Available '' will be placed in the object program listing, the table will be altered to show that electronic switches 1 through 30 are available, and assignment will continue as before.
As the compiler has no information on the layout of objects in the final output, it cannot take advantage of shorter or more efficient instructions that place a requirement on the address of another object.
The compiler, or the last in a series of compilers, is today widely believed to be Ōtomo no Yakamochi, although numerous other theories have been proposed.
The fourth period spans 730 – 760 and includes the work of the last great poet of this collection, the compiler Ōtomo no Yakamochi himself, who not only wrote many original poems but also edited, updated and refashioned an unknown number of ancient poems.
Felix probably issued no such decree, but the compiler of the Liber Pontificalis attributed it to him because he made no departure from the custom in force in his time.
Today, programmers often use DOS emulators, such as DOSBox, to run QuickBASIC on Linux and on modern personal computer hardware that no longer supports the compiler.
The truth is, even if the structured code itself contains no gotos, the optimizing compiler that creates the binary code almost certainly generates them ( and not necessarily in the most efficient way ).
There is no way that a compiler can guarantee that, for all program source code, the fastest ( or smallest ) possible equivalent compiled program is output ; such a compiler is fundamentally impossible because it would solve the halting problem.
Several theories of authorship have been put forward: one argues that the compiler was Minamoto no Takakuni, author of Uji Dainagon Monogatari, another suggests the Buddhist monk Tobane Sōjō, a third proposes a Buddhist monk living somewhere in the vicinity of Kyoto or Nara during the late Heian period.
KDevelop includes no compiler.
The earliest to assert the texts were apocryphal scriptures was perhaps the compiler of the Annotated Catalogue of the Siku Quanshu, but he provided no warrant for it.
In compiler optimization for multiprocessing systems, speculative execution involves an idle processor executing code in the next processor block, in case there is no dependency on code that could be running on other processors.
Without hardware support, the compiler could only issue speculative instructions which have no side effects in case of wrong speculation.
There was no computer time available to debug the compiler, or even to type it in to the computer.
Virtually all IBM products were rebranded as xxx / 400 and the RPG compiler was no exception.
Some efficiency-minded compilers employ a hybrid approach in which the activation records for a function are allocated from the stack if the compiler is able to deduce, through static program analysis, that the function creates no upwards funargs.
Codes were long believed to be more secure than ciphers, since ( if the compiler of the codebook did a good job ) there is no pattern of transformation which can be discovered, whereas ciphers use a consistent transformation, which can potentially be identified and reversed ( except in the case of the one-time pad ).
compiler and more
Using these tools, one can write a more complex text editor, and a simple compiler for a higher-level language and so on, until one can have a graphical IDE and an extremely high-level programming language.
It also supports optional type annotation and casting, which can be added as necessary at the later profiling and optimization stages, to permit the compiler to generate more efficient code.
Various modern compiler static code analysis techniques ( such as elimination of dead code: for example, code which uses the processor but produces internal results which are not used or output ) make the use and design of synthetic benchmarks more difficult.
Most of the others became elaborate formal descriptions which most readers will never be able to decipher, and therefore may not stand up to automated debugging / compiling, just as a program might look good in review, but a compiler might find some interesting errors, and actually running the program written might find even more interesting errors.
Microsoft also sold a BASIC compiler, BASCOM, compatible with GW-BASIC, for programs needing more speed.
In computer science, a linker or link editor is a program that takes one or more objects generated by a compiler and combines them into a single executable program.
The first application run in such a context is a more sophisticated and powerful macro compiler, written in the machine-independent macro language.
This macro compiler is applied to itself, in a bootstrap fashion, to produce a compiled and much more efficient version of itself.
With this revision, occam became a language capable of expressing useful programs, whereas occam 1 was more suited to examining algorithms and exploring the new language ( however, the occam 1 compiler was written in occam 1, so there is an existence proof that reasonably sized, useful programs could be written in occam 1, despite its limitations ).
This was not seen as a drawback since though the few — the compiler writers — would have more work, the many — the programmers — would have less.
; Simple implementation: Generating machine code is one of the more complicated parts of writing a compiler.
* Strength reduction, a compiler optimization where a function of some systematically changing variable is calculated more efficiently by using previous values of the function
The attitude at the time was that hardware design was more mature than compiler design so this was in itself also a reason to implement parts of the functionality in hardware or microcode rather than in a memory constrained compiler ( or its generated code ) alone.
It proved difficult in many cases to write a compiler with more than limited ability to take advantage of the features provided by conventional CPUs.
This takes more steps and requires a degree of insight into the code infeasible for compiler optimization.
Hence the SECD machine is often presented in a more detailed form, such as Peter Henderson's Lispkit Lisp compiler, which has been distributed since 1980.
; More precise information is better: The more precise the information the compiler has, the better it can employ any or all of these optimization techniques.
* Linker ( computing ), the process of taking one or more objects generated by a compiler and combining them into a single executable program.
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