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| 型号： | HIF_SPEC |
| 英文描述： | EZ-030 Demonstration Board Theory of Operation Host Interface (HIF) Specification |
| 中文描述： | 易- 030演示板的经营理论主机接口（诱导因子）规格 |
| 文件页数： | 16/118页 |
| 文件大小： | 356K |
| 代理商： | HIF_SPEC |
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Host Interface (HIF) Specification
16
Given the previous discussion, the required task is to create high-level
language development tools that can be used easily and efficiently on a variety
of execution vehicles. This task can be broken down into the following steps:
Define an operating system virtual machine that provides sufficient
functionality to support the fundamental requirements of each high-level
language, but not so much as to require a massive development effort to
create.
Add appropriate glue routines to the standard libraries of the language so the
libraries are defined in terms of the operating-system virtual machine.
Implement the operating system’s virtual machine services on the various
execution vehicles. For hardware vehicles, the virtual machine is
implemented by a kernel typically contained in a resident monitor software
program. For simulation vehicles, the virtual machine is implemented by
code internal to the simulator and by code simulated by the simulator.
For the 29K Family of hardware and software support products, HIF consists of
the following operating system virtual machine definitions:
A carefully defined, efficient system call mechanism. Accessing a HIF
kernel service requires a transition from user mode to supervisor mode on
the processor. This requires a specific mechanism, such as a trap handler, to
be invoked.
A set of services supporting the primitive requirements of C, FORTRAN,
and Pascal. Most of the services are defined according to UNIX operating
system interface specifications.
A specification of the environment created by the kernel. This involves the
definition of storage allocation and register initializations implemented by
the kernel.
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| HIGHLAND | 制造商:3M Electronic Products Division 功能描述:Highland™ Vinyl Electrical Tape - 3/4" x 66' |
| HIGHLAND TAPE | 制造商:3M Electronic Products Division 功能描述:TAPE INSULATION PVC BLACK 19MMX20.1M 制造商:3M Electronic Products Division 功能描述:TAPE, INSULATION, PVC, BLACK, 19MMX20.1M 制造商:3M Electronic Products Division 功能描述:TAPE, INSULATION, PVC, BLACK, 19MMX20.1M; Tape Type:Electrical Insulation; Tape Backing Material:PVC (Polyvinyl Chloride); Tape Width - Metric:19mm; Tape Width - Imperial:0.748"; Tape Length - Metric:20.1m; Tape Color:Black ;RoHS Compliant: Yes |
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