The Student's Guide to VHDLVHDL 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. |
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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 .
Operator Operation Left operand type Right operand type same as left operand
Result type boolean any except file " v same as left operand boolean equality
inequality less than less than or equal greater than greater than or equal scalar
or 1 ...
... natural is integer range 0 to integer ' high ; subtype positive is integer range 1
to integer ' high ; type real is range implementation defined ; - - implicitly declared
for real operands : - - " = " , " / = " , " < " , " < = " , " > " , " > = " return boolean * * " ...
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Fundamental Concepts | 1 |
Exercises | 25 |
Exercises | 51 |
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Digital Integrated Circuit Design: From VLSI Architectures to CMOS Fabrication Hubert Kaeslin Ierobežota priekšskatīšana - 2008 |