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Compact Summary of VHDL phần 5

Khai báo một kiểu cho việc tạo xử lý tập tin. loại nhận dạng tập tin của type_mark; my_text loại tập tin của chuỗi; loại word_file là tập tin của từ, tập tin đầu ra: my_text; file_open (đầu ra ", my.txt", write_mode); viết (đầu ra, "một số văn bản" & lf); file_close (đầu ra); | VHDL Resolution and Signatures Other Links J VHDL help page J Hamburg VHDL Archive the best set of links I have seen RASSP Project VHDL Tools J VHDL Organization Home Page J gnu GPL VHDL for Linux under development A More information on Exploration VHDL from FTL Systems. Go to top Go to VHDL index http www.csee.umbc.edu help VHDL misc.html 4 of 4 22 12 2001 15 23 40 VHDL Reserved Words ISummary IDesign Units ISequential Statements IConcurrent Statements IPredefined Types IDeclarations I IResolution and Signatures IReserved Words IOperators IPredefined Attributes IStandard Packages I VHDL Reserved Words abs access after alias all and architecture array assert attribute begin block body buffer bus case component configuration constant disconnect downto else elsif end entity exit file for function generate generic group guarded if impure in inertial inout is label library linkage literal loop operator absolute value of right operand. No needed. used to define an access type pointer specifies a time after NOW create another name for an existing identifier dereferences what precedes the .all operator logical and of left and right operands a secondary design unit used to define an array vector or matrix used to have a program check on itself used to declare attribute functions start of a begin end pair start of a block structure designates a procedure body rather than declaration a mode of a signal holds a value a mode of a signal can have multiple drivers part of a case statement starts the definition of a component a primary design unit declares an identifier to be read only signal driver condition middle of a range 31 downto 0 part of if statement if cond then . else . end if part of if statement if cond then . elsif cond . part of many statements may be followed by word and id a primary design unit sequential statement used in loops used to declare a file type start of a for type loop statement starts declaration and body of a function make copies possibly using a .