Examples of using Opcode in English and their translations into Serbian
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Speed up PHP by using an opcode cache.
Opcode: eAccelerator- This is a PHP encoder and loader.
The general form of a VAX-11 instruction would be: opcode.
Opcode: WinCache- An open source PHP solution exclusively for Windows.
In his talk, Wuille said,“Ignoring politics,it's not so hard to add an opcode by way of SegWit's script versioning.”.
Beside the opcode itself, most instructions also specify the data they will process, in the form of operands.
Uniform instruction format,using a single word with the opcode in the same bit positions in every instruction, demanding less decoding;
Opcode: Alternative PHP Caching(APC)- Here the PHP code is cached using open source PHP solutions.
Support for Memcached- if APC and other opcode caches were too much for you, now you may use memcached and have a lot of fun.
Opcode caching via memcache is the best option because you can cloud multiple servers together but APC is another good option.
However, the two projects have different ideas about how to implement the opcode and don't plan to join forces on one proposal(at least not yet).
The opcode fetched from the memory is decoded for the next steps and moved to the appropriate registers.
Fix caching on rackspace cloudsites- they had x-cache installed for opcode cache, but with no user memory, which caused a surge in logfiles- now fixed.
Opcode disk caching and multiple server caching are both available only with rather expensive and considerably superior hosting plans.
For compilers generating assembly directly, tail call elimination is easy:it suffices to replace a call opcode with a jump one, after fixing parameters on the stack.
Apart from the opcode itself, an instruction normally also has one or more specifiers for operands(i.e. data) on which the operation should act, although some operations may have implicit operands, or none at all.
Bitcoin Core contributor Peter Todd declined to discuss the new drivechain opcode because of Lerner's past bitcoin-related patents, and said that he will reject the proposal“until this is rectified.”.
Because VLIWs typically represent instructions scheduled in parallel with a longer instruction word that incorporates the individual instructions,this results in a much longer opcode(termed very long) to specify what executes on a given cycle.
Each component being one byte, the opcode a value in the range 0-255, and each operand consisting of two nibbles, the upper 4 bits specifying an addressing mode, and the lower 4 bits(usually) specifying a register number(R0-R15).
If the hardware determines that the branch prediction state of a particular branchneeds to be updated, it rewrites the opcode with the semantically equivalent opcode that hinted the proper history.
For example, using AL as an accumulator andadding an immediate byte value to it produces the efficient add to AL opcode of 04h, whilst using the BL register produces the generic and longer add to register opcode of 80C3h.