macro instruction การใช้

• M . D ., " Macro Instruction Extensions of Compiler Languages, " Comm.
• The READ or WRITE macro instructions must provide the block address of the desired record.
• The term derives from " macro instruction ", and such expansions were originally used in generating assembly language code.
• Assembler macro instructions, like macros in PL / I and some other languages, can be lengthy " programs " by themselves, executed by interpretation by the assembler during assembly.
• Note that more powerful macro assemblers allowed use of conditional assembly constructs in macro instructions that could generate different code on different machines or different operating systems, reducing the need for multiple libraries.
• It turns out that there are two relevant macro articles, Macro ( computer science ) and Macro instruction; the former was listed in the disambiguation page but the latter is not ( IMHO it should be . ) I've corrected my tags.
• It also hides the skip instructions by providing three-operand branch macro instructions, such as cjne a, b, dest ( compare " a " with " b " and jump to " dest " if they are not equal ).
• As this happens on the ?op-level, sub-operations of different machine ( macro ) instructions may often intermix in a particular ?op-sequence, forming partially reordered machine instructions as a direct consequence of the out-of-order dispatching of microinstructions from several macro instructions.
• The email was allegedly from the US Federal Reserve, saying something about restrictions in " U . S . Federal Wire and ACH online payments . " Not only was the notice itself fraudulent, the attached Excel spreadsheet ( . xls ) contained macro instructions ( a downloader ) to download a Windows executable virus, most likely Dyreza or Dridex malware.
• While " macro instructions " can be defined by a programmer for any set of native assembler program instructions, typically macros are associated with macro libraries delivered with the operating system allowing access to operating system functions such as peripheral access by access methods ( including macros such as OPEN, CLOSE, READ and WRITE ) and other operating system functions such as ATTACH, WAIT and POST for subtask creation and synchronization.
• Typically such macros expand into executable code, e . g ., for the EXIT macroinstruction, a list of " define constant " instructions, e . g ., for the DCB macro, or a combination of code and constants, with the details of the expansion depending on the parameters of the macro instruction ( such as a reference to a file and a data area for a READ instruction ); he executable code often terminated in either a " branch and link register " instruction to call a routine, or a supervisor call instruction to call an operating system function directly.