Some software providers also produced compilers for BASIC, and other languages, to produce binary ( or " machine ") code which would run many times faster and make better use of the small system RAM.

Some compilers, such as gcc, add extra keywords for a programmer to explicitly mark external functions as pure, to enable such optimizations.

Some Forth implementations ( usually early versions or those written to be extremely portable ) compile threaded code, but many implementations today generate optimized machine code like other language compilers.

Some aspects attributed to the first RISC-labeled designs around 1975 include the observations that the memory-restricted compilers of the time were often unable to take advantage of features intended to facilitate manual assembly coding, and that complex addressing modes take many cycles to perform due to the required additional memory accesses.

Some Forth compilers compile Forth programs into direct-threaded code, while others make indirect-threaded code.

Some Forth compilers produce token threaded code.

Some programmers consider the " p-code " generated by some Pascal compilers, as well as the bytecodes used by. NET, Java, BASIC and some C compilers to be token-threading.

Some compilers in this category provide special constructs or extensions to allow programmers to directly specify operations to be performed in parallel ( e. g., DO FOR ALL statements in the version of FORTRAN used on the ILLIAC IV, which was a SIMD multiprocessing supercomputer ).

Some systems, called dynamic translators, or " just-in-time " ( JIT ) compilers, translate bytecode into machine language as necessary at runtime: this makes the virtual machine unportable, but doesn't lose the portability of the bytecode itself.

:; Machine code generation: Some compilers compile source code directly into machine code.

Some, but not all, optimizations can nowadays be performed by optimizing compilers. is often easier to optimize at this stage, and profiling may reveal unexpected performance problems that would not have been addressed by premature optimization.

Some compilers support an option to turn recognition of trigraphs off, or disable trigraphs by default and require an option to turn them on.

Some languages allow, some require, compilers to provide coercion.

Some compilers and lint-like tools flag occurrences of singleton variables.

Some languages and compilers may provide sufficient facilities to implement functions which address both the compiler reordering and machine reordering issues.

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.

Some older compilers allow one only to specialize either all or none of the template's parameters.

Some historians believe that he was one of the compilers of the Chronicles of Nikon.

Some architectures, compilers, or optimization cases store one link for each enclosing level ( not just the immediately enclosing ), so that deeply nested routines that access shallow data do not have to traverse several links ; this strategy is often called a display.

Some historical computers, such as the Burroughs large systems, had special " display registers " to support nested functions while compilers for most modern machines ( such as the ubiquitous x86 ) simply reserve a few words on the stack for the pointers, as needed.

Some early C compilers had the feature, now seen as an annoyance, of generating a warning on any function call that did not use the function's returned value.

Some churches require more.

Some established jurisdictions require adherence to design and historic preservation guidelines.

Some opcodes require one or more operands as part of the instruction, and most assemblers can take labels and symbols as operands to represent addresses and constants, instead of hard coding them into the program.

Some instances of exploring these " nearby " nodes require traversing up to 2 × log ( n ) links ( particularly when moving from the rightmost leaf of the root's left subtree to the leftmost leaf of the root's right subtree ).

Some contact adhesives require as long as 24 hours to dry before the surfaces are to be held together.

Some authors require in addition that μ ( C ) < ∞ for every compact set C. If a Borel measure μ is both inner regular and outer regular, it is called a regular Borel measure.

Some forms of Islamic law, as in Saudi Arabia, may require capital punishment, but there is great variation within Islamic nations as to actual capital punishment.

Some cities such as Seattle and San Francisco require food and yard waste to be sorted for composting.

Some casinos require all players to make a minimum Pass or Don't Pass bet whether they are currently shooting or not.

* Some such countries do not require tourist visas of citizens of other Commonwealth countries.

Some other cash registers require a numeric password or physical key to be used when attempting to open the till.

Some undergraduate courses require a team of 2 to 5 students to design, implement, and test a simple CPU in a FPGA in a single 15 week semester.

Some shotgun sports, such as skeet, use crossing targets presented in a narrow range of distance, and only require one level of choke.

Some of the roads in more rural area are rough and unpaved, and require a four-wheel drive vehicles.

Some holes may require a throw from a Drop Zone.

Some players will use mid-ranges as drivers, and there are tournaments that require players to use only mid-range discs.

Some digital synthesizers now exist in the form of " softsynth " software that synthesizes sound using conventional PC hardware, though they require careful programming and a fast CPU to get the same latency response as their dedicated equivalents.

Some programs offer programs with two pre-professional years followed by four professional years, while others require a four year undergraduate / bachelor's degree.

Some Protestant communities including most Lutheran churches practice closed communion and require catechetical instruction for all people before receiving the Eucharist.

Some authors also require the domain of the Euclidean function be the entire ring R ; this can always be accommodated by adding 1 to the values at all nonzero elements, and defining the function to be 0 at the zero element of R, but the result is somewhat awkward in the case of K. The definition is sometimes generalized by allowing the Euclidean function to take its values in any well-ordered set ; this weakening does not affect the most important implications of the Euclidean property.

Some definitions of epilepsy require that seizures be recurrent and unprovoked, but others require only a single seizure combined with brain alterations which increase the chance of future seizures.

Some patients, however, require polypharmacy, the use of two or more anticonvulsants.

Some of these risks may be self-insurable, while most will require the purchase of an insurance contract.

Some other weapons, such as crossbows, require the same license as is required for firearms.