Changes between Version 65 and Version 66 of TBR/BSP/Psim

Timestamp:

12/18/10 01:00:44 (13 years ago)

Author:

E.begov

Comment:

TBR/BSP/Psim

@@ -29 +29 @@
 
 
-Describe the board here.  Include links to manuals, brochures, etc.
+PSIM is a program written in extended ANSI-C that emulates the Instruction Set Architecture of the PowerPC microprocessor family. It is freely available in source code form under the terms of the GNU General Public License (version 2 or later).
+
+The publication The PowerPC Architecture: A specification for a new family of RISC processors </cite> describes the PowerPC Instruction Set Architecture has having three levels of compliance:
+
+UEA - User Instruction Set Architecture "<cite>the registers, instructions, storage model, and execution model that are available to all application programs</cite>"
+VEA - Virtual Environment Architecture "<cite>the features of the architecture that permit application programs to create or modify code, to share data among programs in a multiprocessing system, and to optimize the performance of storage accesses</cite>"
+OEA - Operating Environment Architecture "<cite>the features of the architecture that permit operating systems to allocate and manage storage, to handle errors encountered by application programs, to support I/O devices, and to provide the other services expected of secure, modern, multiprocessor operating systems</cite>"
+PSIM, both implements all three levels of the <strong>PowerPC</strong> Instruction Set Architecture, and includes, for each level, a number of simulated run-time environments:
+
+UEA <strong>PSIM</strong> can run static programs compiled for any of the following operating systems: <UL> <LI>NetBSD <LI>Solaris <LI>LINIX </UL>
+VEA Support for environmental features of the Instruction Set Architecture including:
+Symetric multi-processing
+Cache manipulation
+Time base registers
+OEA Details of the target <cite>PowerPC Platform</cite> being modeled can be specified including:
+firmware (Motorola BUG or OpenFirmware)
+memory and I/O address maps
+attached devices
+interrupt controller (OpenPIC) configuration
+In addition, <strong>PSIM</strong>, to the execution unit level, models the performance of most of the current PowerPC implementations (contributed by Michael Meissner). This detailed performance monitoring (unlike many other simulators) resulting in only a relatively marginal reduction in the simulators performance.
+
+This document, firstly explains how to build and run PSIM. It then goes on to discuss the details of the internals of this simulator.
+
+The most recent formal release of PSIM is version 2.1. In addition to describing that release of PSIM, this document also describes extensions that have been proposed for a future release of the PSIM Architecture
 = Board Setup =