OAK
发表于 2025-3-21 16:26:08
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低能儿
发表于 2025-3-21 23:34:52
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拥护者
发表于 2025-3-22 03:33:21
Shared (Global) VariablesSince the term “global variable” has led to intense debate throughout the standardization process, the more neutral term “shared variable” has finally been chosen. The concept itself has not changed: a shared variable is a variable that can be accessed (read or written) by more than one process.
Osteoporosis
发表于 2025-3-22 06:55:37
Foreign InterfacesAll computer languages need to define their interface with the external world. This external world is usually
hypnotic
发表于 2025-3-22 12:01:54
Reading & Writing FilesAlthough many early implementations of subsets of VHDL simply ignored the input/outputs, more and more models today rely not only on their existence but also on their efficiency.
弄皱
发表于 2025-3-22 15:53:10
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话
发表于 2025-3-22 19:46:12
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说笑
发表于 2025-3-22 21:25:16
Xnor OperatorA set of five logical operators is predefined in VHDL’87: ., ., ., ., and .. For obvious reasons of symmetry, some users requested the addition of a sixth operator: ..
富饶
发表于 2025-3-23 04:15:38
Predefined Attribute Driving_Value (and ’Driving)Especially when modeling simple hardware devices, it can seem very restricting not to be allowed to read output port values (i.e., to place them on the right-hand side of assignment statements, as shown in Fig 13.1).
业余爱好者
发表于 2025-3-23 06:46:28
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