contrib.texi: Mention crx.

	* doc/contrib.texi: Mention crx.
	* doc/extend.texi: Document crx extensions.
	* doc/install.texi: Document crx install.
	* doc/invoke.texi: Document crx options.
	* doc/md.texi: Document crx constraints.

From-SVN: r102700

diff --git a/gcc/doc/contrib.texi b/gcc/doc/contrib.texi
index d4c71ecd76a5aa08da3136b9ff26175f465f7207..d902629f5f3cafbc5d57a4972b07ceac3ea39c1d 100644 (file)
--- a/gcc/doc/contrib.texi
+++ b/gcc/doc/contrib.texi
@@ -961,6 +961,9 @@ Jim Wilson for his direction via the steering committee, tackling hard
 problems in various places that nobody else wanted to work on, strength
 reduction and other loop optimizations.
 
+@item
+Paul Woegerer and Tal Agmon for the CRX port.
+
 @item
 Carlo Wood for various fixes.
 

diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index 225f5a32e5be1cae38d804d07bf34451d465acbb..270223d9351c4290f9bc7c7825cec70938ea079b 100644 (file)
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -1887,7 +1887,7 @@ this attribute to work correctly.
 
 @item interrupt
 @cindex interrupt handler functions
-Use this attribute on the ARM, AVR, C4x, M32C, M32R/D and Xstormy16
+Use this attribute on the ARM, AVR, C4x, CRX, M32C, M32R/D and Xstormy16
 ports to indicate that the specified function is an interrupt handler.
 The compiler will generate function entry and exit sequences suitable
 for use in an interrupt handler when this attribute is present.

diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi
index cf1ee69da6621d3ede47cae69f273c380fd3e35f..6f0939ba877b23734ec7c89f284fbe7bd22818da 100644 (file)
--- a/gcc/doc/install.texi
+++ b/gcc/doc/install.texi
@@ -2626,6 +2626,32 @@ Pre-packaged tools can be obtained from
 information about this platform is available at
 @uref{http://developer.axis.com/}.
 
+@html
+<hr />
+@end html
+@heading @anchor{crx}CRX
+
+The CRX CompactRISC architecture is a low-power 32-bit architecture with
+fast context switching and architectural extensibility features.
+
+@ifnothtml
+@xref{CRX Options,, CRX Options, gcc, Using and Porting the GNU Compiler
+Collection (GCC)},
+@end ifnothtml
+
+@ifhtml
+See ``CRX Options'' in the main manual for a list of CRX-specific options.
+@end ifhtml
+
+Use @samp{configure --target=crx-elf --enable-languages=c,c++} to configure
+GCC@ for building a CRX cross-compiler. The option @samp{--target=crx-elf}
+is also used to build the @samp{newlib} C library for CRX.
+
+It is also possible to build libstdc++-v3 for the CRX architecture. This
+needs to be done in a sepearate step with the following configure settings:
+@samp{gcc/libstdc++-v3/configure --host=crx-elf --with-newlib
+--enable-sjlj-exceptions --enable-cxx-flags='-fexceptions -frtti'}
+
 @html
 <hr />
 @end html

diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index e62a16043de15bf0c7c0c103654622bceec9b552..b4de87c5ba61eab3643ad5ee1cf8e80ecec84024 100644 (file)
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -431,6 +431,9 @@ Objective-C and Objective-C++ Dialects}.
 -melf  -maout  -melinux  -mlinux  -sim  -sim2 @gol
 -mmul-bug-workaround  -mno-mul-bug-workaround}
 
+@emph{CRX Options}
+@gccoptlist{-mmac -mpush-args}
+
 @emph{Darwin Options}
 @gccoptlist{-all_load  -allowable_client  -arch  -arch_errors_fatal @gol
 -arch_only  -bind_at_load  -bundle  -bundle_loader @gol
@@ -6986,6 +6989,7 @@ platform.
 * AVR Options::
 * Blackfin Options::
 * CRIS Options::
+* CRX Options::
 * Darwin Options::
 * DEC Alpha Options::
 * DEC Alpha/VMS Options::
@@ -7657,6 +7661,24 @@ Like @option{-sim}, but pass linker options to locate initialized data at
 0x40000000 and zero-initialized data at 0x80000000.
 @end table
 
+@node CRX Options
+@subsection CRX Options
+@cindex CRX Options
+
+These options are defined specifically for the CRX ports.
+
+@table @gcctabopt
+
+@item -mmac
+@opindex mmac
+Enable the use of multiply-accumulate instructions. Disabled by default.
+
+@item -mpush-args
+@opindex mpush-args
+Push instructions will be used to pass outgoing arguments when functions
+are called. Enabled by default.
+@end table
+
 @node Darwin Options
 @subsection Darwin Options
 @cindex Darwin options

diff --git a/gcc/doc/md.texi b/gcc/doc/md.texi
index 682269b0d16d73505ec108908447af61f3f22020..0d0e51747dfd3bae6127ced15e8b26b400fc6ef0 100644 (file)
--- a/gcc/doc/md.texi
+++ b/gcc/doc/md.texi
@@ -1746,6 +1746,37 @@ Constant integer 1
 A floating point constant 0.0
 @end table
 
+@item CRX Architecture---@file{crx.h}
+@table @code
+
+@item b
+Registers from r0 to r14 (registers without stack pointer)
+
+@item l
+Register r16 (64-bit accumulator lo register)
+
+@item h
+Register r17 (64-bit accumulator hi register)
+
+@item k
+Register pair r16-r17. (64-bit accumulator lo-hi pair)
+
+@item I
+Constant that fits in 3 bits
+
+@item J
+Constant that fits in 4 bits
+
+@item K
+Constant that fits in 5 bits
+
+@item L
+Constant that is one of -1, 4, -4, 7, 8, 12, 16, 20, 32, 48
+
+@item G
+Floating point constant that is legal for store immediate
+@end table
+
 @item PowerPC and IBM RS6000---@file{rs6000.h}
 @table @code
 @item b