The Student's Guide to VHDL
Elsevier Science, 1998. gada 15. janv. - 336 lappuses
VHDL is a language for describing digital electronic systems. A vital, efficient step in the system design process, VHDL allows for the design and simulation of a hardware system prior to it actually being manufactured.
Offering the same clear, accessible style as The Designer's Guide to VHDL, The Student's Guide is designed as a main text for introductory VHDL courses, and as a supplementary text for courses that require VHDL-based project work, such as computer architecture, digital design, and digital logic courses. This new condensed text also serves as a quick, self-teaching guide for practicing engineers who need to learn only the basics of VHDL.
1.3. rezultāts no 26.
Booleans One of the most important predefined enumeration types in VHDL is
the type boolean , defined as type boolean is ( false , true ) ; This type is used to
represent condition values , which can control execution of a behavioral model .
For or and nor , the right - hand operand is not evaluated if the lefthand is true .
VHDL - 87 The logical operator xnor is not provided in VHDL - 87 . Bits Since
VHDL is used to model digital systems , it is useful to have a data type to
represent bit ...
In this example , the first condition is evaluated , and if true , the statement after
the first then keyword is executed . If the first condition is false , the second
condition is evaluated , and if it evaluates to true , the statement after the second
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