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authorJoel Sherrill <joel.sherrill@OARcorp.com>2006-08-23 19:11:14 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2006-08-23 19:11:14 +0000
commit83fb86f32b73942be758c22423c0bfe506fd4ff6 (patch)
treed51a136781eaccf67bfb2addfbe5330d9aed4791 /doc/supplements/template/cpumodel.t
parent2006-08-23 Joel Sherrill <joel@OARcorp.com> (diff)
downloadrtems-83fb86f32b73942be758c22423c0bfe506fd4ff6.tar.bz2
2006-08-23 Joel Sherrill <joel@OARcorp.com>
* Makefile.am, configure.ac, FAQ/stamp-vti, FAQ/version.texi, common/cpright.texi: Merging CPU Supplements into a single document. As part of this removed the obsolete and impossible to maintain size and timing information. * cpu_supplement/.cvsignore, cpu_supplement/Makefile.am, cpu_supplement/arm.t, cpu_supplement/i386.t, cpu_supplement/m68k.t, cpu_supplement/mips.t, cpu_supplement/powerpc.t, cpu_supplement/preface.texi, cpu_supplement/sh.t, cpu_supplement/sparc.t, cpu_supplement/tic4x.t: New files. * supplements/.cvsignore, supplements/Makefile.am, supplements/supplement.am, supplements/arm/.cvsignore, supplements/arm/BSP_TIMES, supplements/arm/ChangeLog, supplements/arm/Makefile.am, supplements/arm/arm.texi, supplements/arm/bsp.t, supplements/arm/callconv.t, supplements/arm/cpumodel.t, supplements/arm/cputable.t, supplements/arm/fatalerr.t, supplements/arm/intr_NOTIMES.t, supplements/arm/memmodel.t, supplements/arm/preface.texi, supplements/arm/timeBSP.t, supplements/c4x/.cvsignore, supplements/c4x/BSP_TIMES, supplements/c4x/ChangeLog, supplements/c4x/Makefile.am, supplements/c4x/bsp.t, supplements/c4x/c4x.texi, supplements/c4x/callconv.t, supplements/c4x/cpumodel.t, supplements/c4x/cputable.t, supplements/c4x/fatalerr.t, supplements/c4x/intr_NOTIMES.t, supplements/c4x/memmodel.t, supplements/c4x/preface.texi, supplements/c4x/timeBSP.t, supplements/i386/.cvsignore, supplements/i386/ChangeLog, supplements/i386/FORCE386_TIMES, supplements/i386/Makefile.am, supplements/i386/bsp.t, supplements/i386/callconv.t, supplements/i386/cpumodel.t, supplements/i386/cputable.t, supplements/i386/fatalerr.t, supplements/i386/i386.texi, supplements/i386/intr_NOTIMES.t, supplements/i386/memmodel.t, supplements/i386/preface.texi, supplements/i386/timeFORCE386.t, supplements/m68k/.cvsignore, supplements/m68k/ChangeLog, supplements/m68k/MVME136_TIMES, supplements/m68k/Makefile.am, supplements/m68k/bsp.t, supplements/m68k/callconv.t, supplements/m68k/cpumodel.t, supplements/m68k/cputable.t, supplements/m68k/fatalerr.t, supplements/m68k/intr_NOTIMES.t, supplements/m68k/m68k.texi, supplements/m68k/memmodel.t, supplements/m68k/preface.texi, supplements/m68k/timeMVME136.t, supplements/m68k/timedata.t, supplements/mips/.cvsignore, supplements/mips/BSP_TIMES, supplements/mips/ChangeLog, supplements/mips/Makefile.am, supplements/mips/bsp.t, supplements/mips/callconv.t, supplements/mips/cpumodel.t, supplements/mips/cputable.t, supplements/mips/fatalerr.t, supplements/mips/intr_NOTIMES.t, supplements/mips/memmodel.t, supplements/mips/mips.texi, supplements/mips/preface.texi, supplements/mips/timeBSP.t, supplements/powerpc/.cvsignore, supplements/powerpc/ChangeLog, supplements/powerpc/DMV177_TIMES, supplements/powerpc/Makefile.am, supplements/powerpc/PSIM_TIMES, supplements/powerpc/bsp.t, supplements/powerpc/callconv.t, supplements/powerpc/cpumodel.t, supplements/powerpc/cputable.t, supplements/powerpc/fatalerr.t, supplements/powerpc/intr_NOTIMES.t, supplements/powerpc/memmodel.t, supplements/powerpc/powerpc.texi, supplements/powerpc/preface.texi, supplements/powerpc/timeDMV177.t, supplements/powerpc/timePSIM.t, supplements/sh/.cvsignore, supplements/sh/BSP_TIMES, supplements/sh/ChangeLog, supplements/sh/Makefile.am, supplements/sh/bsp.t, supplements/sh/callconv.t, supplements/sh/cpumodel.t, supplements/sh/cputable.t, supplements/sh/fatalerr.t, supplements/sh/intr_NOTIMES.t, supplements/sh/memmodel.t, supplements/sh/preface.texi, supplements/sh/sh.texi, supplements/sh/timeBSP.t, supplements/sparc/.cvsignore, supplements/sparc/ChangeLog, supplements/sparc/ERC32_TIMES, supplements/sparc/Makefile.am, supplements/sparc/bsp.t, supplements/sparc/callconv.t, supplements/sparc/cpumodel.t, supplements/sparc/cputable.t, supplements/sparc/fatalerr.t, supplements/sparc/intr_NOTIMES.t, supplements/sparc/memmodel.t, supplements/sparc/preface.texi, supplements/sparc/sparc.texi, supplements/sparc/timeERC32.t, supplements/template/.cvsignore, supplements/template/BSP_TIMES, supplements/template/ChangeLog, supplements/template/Makefile.am, supplements/template/bsp.t, supplements/template/callconv.t, supplements/template/cpumodel.t, supplements/template/cputable.t, supplements/template/fatalerr.t, supplements/template/intr_NOTIMES.t, supplements/template/memmodel.t, supplements/template/preface.texi, supplements/template/template.texi, supplements/template/timeBSP.t: Removed.
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-@c
-@c COPYRIGHT (c) 1988-2002.
-@c On-Line Applications Research Corporation (OAR).
-@c All rights reserved.
-@c
-@c $Id$
-@c
-
-@chapter CPU Model Dependent Features
-
-@section Introduction
-
-Microprocessors are generally classified into
-families with a variety of CPU models or implementations within
-that family. Within a processor family, there is a high level
-of binary compatibility. This family may be based on either an
-architectural specification or on maintaining compatibility with
-a popular processor. Recent microprocessor families such as the
-SPARC or PowerPC are based on an architectural specification
-which is independent or any particular CPU model or
-implementation. Older families such as the M68xxx and the iX86
-evolved as the manufacturer strived to produce higher
-performance processor models which maintained binary
-compatibility with older models.
-
-RTEMS takes advantage of the similarity of the
-various models within a CPU family. Although the models do vary
-in significant ways, the high level of compatibility makes it
-possible to share the bulk of the CPU dependent executive code
-across the entire family. Each processor family supported by
-RTEMS has a list of features which vary between CPU models
-within a family. For example, the most common model dependent
-feature regardless of CPU family is the presence or absence of a
-floating point unit or coprocessor. When defining the list of
-features present on a particular CPU model, one simply notes
-that floating point hardware is or is not present and defines a
-single constant appropriately. Conditional compilation is
-utilized to include the appropriate source code for this CPU
-model's feature set. It is important to note that this means
-that RTEMS is thus compiled using the appropriate feature set
-and compilation flags optimal for this CPU model used. The
-alternative would be to generate a binary which would execute on
-all family members using only the features which were always
-present.
-
-This chapter presents the set of features which vary
-across SPARC implementations and are of importance to RTEMS.
-The set of CPU model feature macros are defined in the file
-cpukit/score/cpu/XXX/XXX.h based upon the particular CPU
-model defined on the compilation command line.
-
-@section CPU Model Name
-
-The macro CPU_MODEL_NAME is a string which designates
-the name of this CPU model. For example, for the MODEL
-processor, this macro is set to the string "XXX".
-
-@section Floating Point Unit
-
-The macro XXX_HAS_FPU is set to 1 to indicate that
-this CPU model has a hardware floating point unit and 0
-otherwise. It does not matter whether the hardware floating
-point support is incorporated on-chip or is an external
-coprocessor.
-
-@section Another Optional Feature
-
-The macro XXX