-#LyX 1.4.3 created this file. For more info see http://www.lyx.org/
+#LyX 1.4.5 created this file. For more info see http://www.lyx.org/
\lyxformat 245
\begin_document
\begin_header
\begin_layout Date
\size normal
-SDCC 2.7.1
+SDCC 2.7.5
\size footnotesize
\newline
./configure CC=gcc2 CXX=g++2
\end_layout
+\begin_layout Standard
+Universal (ppc and i386) binaries can be produced on Mac OS X 10.4.x with
+ Xcode.
+ Run 'configure' with:
+\end_layout
+
+\begin_layout LyX-Code
+./configure
+\backslash
+
+\end_layout
+
+\begin_layout LyX-Code
+LDFLAGS="-Wl,-syslibroot,/Developer/SDKs/MacOSX10.4u.sdk -arch i386 -arch
+ ppc"
+\backslash
+
+\end_layout
+
+\begin_layout LyX-Code
+CXXFLAGS = "-O2 -isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch i386 -arch
+ ppc"
+\backslash
+
+\end_layout
+
+\begin_layout LyX-Code
+CFLAGS = "-O2 -isysroot /Developer/SDKs/MacOSX10.4u.sdk -arch i386 -arch ppc"
+\end_layout
+
\begin_layout Subsection
Cross compiling SDCC on Linux for Windows
\end_layout
\family sans
\series bold
sdcclib libint.lib _mulint.rel
+\family default
+\series default
+
+\newline
+
+\end_layout
+
+\begin_layout Standard
+Or, if you preffer:
+\family sans
+\series bold
+
+\newline
+
+\end_layout
+
+\begin_layout Standard
+
+\family sans
+\series bold
+sdcclib libint.lib _divsint.rel _divuint.rel _modsint.rel _moduint.rel _mulint.rel
+\family default
\series default
\newline
\begin_layout Standard
If the file already exists in the library, it will be replaced.
- To see what modules and symbols are included in the library, options -s
+ If a list of .rel files is available, you can tell sdcclib to add those
+ files to a library.
+ For example, if the file 'myliblist.txt' contains
+\family sans
+\series bold
+
+\newline
+
+\end_layout
+
+\begin_layout Standard
+
+\family sans
+\series bold
+_divsint.rel
+\end_layout
+
+\begin_layout Standard
+
+\family sans
+\series bold
+_divuint.rel
+\end_layout
+
+\begin_layout Standard
+
+\family sans
+\series bold
+_modsint.rel
+\end_layout
+
+\begin_layout Standard
+
+\family sans
+\series bold
+_moduint.rel
+\end_layout
+
+\begin_layout Standard
+
+\family sans
+\series bold
+_mulint.rel
+\family default
+\series default
+
+\newline
+
+\end_layout
+
+\begin_layout Standard
+Use
+\family sans
+\series bold
+
+\newline
+
+\end_layout
+
+\begin_layout Standard
+
+\family sans
+\series bold
+sdcclib -l libint.lib myliblist.txt
+\family default
+\series default
+
+\newline
+
+\end_layout
+
+\begin_layout Standard
+Additionally, you can instruct sdcclib to compiles the files before adding
+ them to the library.
+ This is achieved using the environment variables SDCCLIB_CC and/or SDCCLIB_AS.
+ For example:
+\family sans
+\series bold
+
+\newline
+
+\end_layout
+
+\begin_layout Standard
+
+\family sans
+\series bold
+set SDCCLIB_CC=sdcc -c
+\end_layout
+
+\begin_layout Standard
+
+\family sans
+\series bold
+sdcclib -l libint.lib myliblist.txt
+\family default
+\series default
+
+\newline
+
+\end_layout
+
+\begin_layout Standard
+To see what modules and symbols are included in the library, options -s
and -m are available.
For example:
\newline
Causes the linker to use old style for allocating memory areas.
\end_layout
+\begin_layout List
+\labelwidthstring 00.00.0000
+
+\series bold
+-
+\begin_inset ERT
+status collapsed
+
+\begin_layout Standard
+
+
+\backslash
+/
+\end_layout
+
+\end_inset
+
+-acall-ajmp
+\series default
+\InsetSpace ~
+
+\begin_inset LatexCommand \index{-\/-acall-ajmp}
+
+\end_inset
+
+ Replaces the three byte instructions lcall/ljmp with the two byte instructions
+ acall/ajmp.
+ Only use this option if your code is in the same 2k block of memory.
+ You may need to use this option for some 8051 derivatives which lack the
+ lcall/ljmp instructions..
+\end_layout
+
\begin_layout Standard
\begin_inset VSpace bigskip
\end_inset
\begin_layout Standard
+\backslash
+/
+\end_layout
+
+\end_inset
+
+-Werror
+\begin_inset LatexCommand \index{-\/-Werror}
+
+\end_inset
+
+
+\series default
+ Treat all warnings as errors.
+\end_layout
+
+\begin_layout List
+\labelwidthstring 00.00.0000
+
+\series bold
+-
+\begin_inset ERT
+status collapsed
+
+\begin_layout Standard
+
+
\backslash
/
\end_layout
\InsetSpace ~
\InsetSpace ~
\InsetSpace ~
+orl a,#(l_PSEG
+ >> 8)
+\newline
+\InsetSpace ~
+\InsetSpace ~
+\InsetSpace ~
+\InsetSpace ~
+\InsetSpace ~
+\InsetSpace ~
+\InsetSpace ~
+\InsetSpace ~
jz 00006$
\newline
\InsetSpace ~
\InsetSpace ~
\InsetSpace ~
\InsetSpace ~
-mov
- r1,#s_PSEG
+mov r1,#s_PSEG
\newline
\InsetSpace ~
\InsetSpace ~
clr a
\newline
00005$:\InsetSpace ~
-movx @r1,a
+movx
+ @r1,a
\newline
\InsetSpace ~
\InsetSpace ~
\InsetSpace ~
djnz r0,00005$
\newline
-0
-0006$:
+00006$:
\newline
\InsetSpace ~
\InsetSpace ~
\InsetSpace ~
\InsetSpace ~
\InsetSpace ~
-orl a,#(l_XSEG >> 8)
+orl a,#(l_XSEG >>
+ 8)
\newline
\InsetSpace ~
\InsetSpace ~
\InsetSpace ~
\InsetSpace ~
\InsetSpace ~
-mov r1,#((l_XSEG
- + 255) >> 8)
+mov r1,#((l_XSEG + 255) >> 8)
\newline
\InsetSpace ~
\InsetSpace ~
clr a
\newline
00007$:\InsetSpace ~
-movx @dptr,a
+movx
+ @dptr,a
\newline
\InsetSpace ~
\InsetSpace ~
\InsetSpace ~
\InsetSpace ~
\InsetSpace ~
-djnz
- r1,00007$
+djnz r1,00007$
\newline
00008$:
\end_layout
\end_inset
about MCS51-variants.
+\newline
+
+\end_layout
+
+\begin_layout Standard
+While these initialization modules are meant as generic startup code there
+ might be the need for customization.
+ Let's assume the return value of
+\emph on
+_sdcc_external_startup()
+\emph default
+ in
+\emph on
+crtstart.asm
+\emph default
+ should not be checked (or
+\emph on
+_sdcc_external_startup()
+\emph default
+ should not be called at all).
+ The recommended way would be to copy
+\emph on
+crtstart.asm
+\emph default
+ (f.e.
+ from
+\begin_inset LatexCommand \url{http://sdcc.svn.sourceforge.net/viewvc/*checkout*/sdcc/trunk/sdcc/device/lib/mcs51/crtstart.asm}
+
+\end_inset
+
+) into the source directory, adapt it there, then assemble it with
+\emph on
+asx8051 -plosgff
+\begin_inset Foot
+status open
+
+\begin_layout Standard
+\begin_inset Quotes sld
+\end_inset
+
+-plosgff
+\begin_inset Quotes srd
+\end_inset
+
+ are the assembler options used in
+\begin_inset LatexCommand \url{http://sdcc.svn.sourceforge.net/viewvc/sdcc/trunk/sdcc/device/lib/mcs51/Makefile.in?view=markup }
+
+\end_inset
+
+
+\end_layout
+
+\end_inset
+
+ crtstart.asm
+\emph default
+ and when linking your project explicitely specify
+\emph on
+crtstart.rel
+\emph default
+.
+ As a bonus a listing of the relocated object file
+\emph on
+crtstart.rst
+\emph default
+ is generated.
+\end_layout
+
+\begin_layout Standard
\begin_inset VSpace bigskip
\end_inset
\begin_layout Enumerate
Add DEVICE to
\family typewriter
-/path/to/sdcc/device/lib/pics.all
+/path/to/sdcc/device/lib/pic16/pics.all
\family default
(and
\family typewriter
\begin_layout Standard
\align left
\begin_inset Tabular
-<lyxtabular version="3" rows="14" columns="3">
+<lyxtabular version="3" rows="16" columns="3">
<features>
<column alignment="left" valignment="top" leftline="true" width="0pt">
<column alignment="block" valignment="top" leftline="true" width="30line%">
-<column alignment="left" valignment="top" leftline="true" rightline="true" width="0pt">
+<column alignment="left" valignment="top" leftline="true" rightline="true" width="40col%">
<row topline="true" bottomline="true">
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text
\end_inset
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row bottomline="true">
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Standard
+d52
+\begin_inset LatexCommand \index{d52}
+
+\end_inset
+
+
+\begin_inset LatexCommand \index{d52 (disassembler)}
+
+\end_inset
+
+
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Standard
+Disassembler, can count instruction cycles
+\begin_inset LatexCommand \index{instruction cycles (count)}
+
+\end_inset
+
+, use with options -pnd
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Standard
+\begin_inset LatexCommand \url{http://www.8052.com/users/disasm/}
+
+\end_inset
+
+
+\end_layout
+
+\end_inset
+</cell>
+</row>
+<row bottomline="true">
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Standard
+cmake
+\begin_inset LatexCommand \index{cmake}
+
+\end_inset
+
+
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Standard
+Cross platform build system, generates Makefiles
+\begin_inset LatexCommand \index{Makefile}
+
+\end_inset
+
+ and project workspaces
+\begin_inset LatexCommand \index{project workspace}
+
+\end_inset
+
+
+\end_layout
+
+\end_inset
+</cell>
+<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
+\begin_inset Text
+
+\begin_layout Standard
+\begin_inset LatexCommand \url{http://www.cmake.org}
+
+\end_inset
+
+ \InsetSpace ~
+\InsetSpace ~
+\InsetSpace ~
+\InsetSpace ~
+and a dedicated wiki entry:
+\begin_inset LatexCommand \url{http://www.cmake.org/Wiki/CmakeSdcc}
+
+\end_inset
+
+
\end_layout
\end_inset
\end_inset
.
- A release wiki
+ The SDCC Wiki
\begin_inset LatexCommand \index{wiki}
\end_inset
-\begin_inset LatexCommand \index{Release wiki}
+\begin_inset LatexCommand \index{SDCC Wiki}
\end_inset
at
-\begin_inset LatexCommand \url{http://sdcc.sf.net/release_wiki/}
+\begin_inset LatexCommand \url{http://sdcc.wiki.sourceforge.net/}
\end_inset
\end_inset
check that SDCC itself compiles flawlessly on several host platforms (i386,
- Opteron, 64 bit Alpha, ppc64, Mac OS X on PPC, Solaris on Sparc) and checks
- the quality of the code generated by SDCC by running the code for several
- target platforms through simulators.
+ Opteron, 64 bit Alpha, ppc64, Mac OS X on ppc and i386, Solaris on Sparc)
+ and checks the quality of the code generated by SDCC by running the code
+ for several target platforms through simulators.
The regression test suite comprises more than 100 files which expand to
more than 500 test cases which include more than 4500 tests.
The results of these tests are published daily on SDCC's snapshot page
replace { ljmp %1 } by { ajmp %1 }
\end_layout
+\begin_layout Standard
+(NOTE: from version 2.7.3 on, you can use option -
+\emph on
+
+\begin_inset ERT
+status collapsed
+
+\begin_layout Standard
+
+
+\backslash
+/
+\end_layout
+
+\end_inset
+
+
+\emph default
+-acall-ajmp
+\begin_inset LatexCommand \index{-\/-acall-ajmp}
+
+\end_inset
+
+, which also takes care of aligning the interrupt vectors properly.)
+\newline
+
+\end_layout
+
\begin_layout Standard
The
\emph on
'__data' instead of 'data'.
\end_layout
+\begin_layout Itemize
+integer promotion of variable arguments is not performed if the argument
+ is explicitly taypecasted unless the
+\series bold
+ -
+\begin_inset ERT
+status collapsed
+
+\begin_layout Standard
+
+
+\backslash
+/
+\end_layout
+
+\end_inset
+
+-std-c89
+\begin_inset LatexCommand \index{-\/-std-c89}
+
+\end_inset
+
+ or -
+\begin_inset ERT
+status collapsed
+
+\begin_layout Standard
+
+
+\backslash
+/
+\end_layout
+
+\end_inset
+
+-std-c99
+\begin_inset LatexCommand \index{-\/-std-c99}
+
+\end_inset
+
+
+\series default
+ command line options are used.
+\end_layout
+
+\begin_deeper
+\begin_layout Verse
+
+\family typewriter
+void vararg_func (char *str, ...) { atr; }
+\newline
+
+\newline
+void main (void)
+\newline
+{
+\newline
+\InsetSpace ~
+\InsetSpace ~
+char c = 10;
+\newline
+
+\newline
+\InsetSpace ~
+\InsetSpace ~
+/* argument
+ u is promoted to int before
+\newline
+\InsetSpace ~
+\InsetSpace ~
+\InsetSpace ~
+* passing to function */
+\newline
+\InsetSpace ~
+\InsetSpace ~
+vararg_func (
+\begin_inset Quotes sld
+\end_inset
+
+%c
+\begin_inset Quotes srd
+\end_inset
+
+, c);
+\newline
+
+\newline
+\InsetSpace ~
+\InsetSpace ~
+/* argument u is not promoted to int,
+\newline
+\InsetSpace ~
+\InsetSpace ~
+\InsetSpace ~
+* it is passed as char to function
+\newline
+\InsetSpace ~
+\InsetSpace ~
+\InsetSpace ~
+*
+ if --std-cXX is not defined;
+\newline
+\InsetSpace ~
+\InsetSpace ~
+\InsetSpace ~
+* is promoted to int before passing
+\newline
+\InsetSpace ~
+\InsetSpace ~
+\InsetSpace ~
+* to function
+ if --std-cXX is defined */
+\newline
+\InsetSpace ~
+\InsetSpace ~
+vararg_func (
+\begin_inset Quotes sld
+\end_inset
+
+%bc
+\begin_inset Quotes srd
+\end_inset
+
+, (char)u);
+\newline
+}
+\end_layout
+
+\end_deeper
\begin_layout Section
Cyclomatic Complexity
\begin_inset LatexCommand \index{Cyclomatic complexity}
\end_layout
\begin_layout Standard
-More information is available in a wiki
+More information is available on SDCC Wiki
\begin_inset LatexCommand \index{wiki}
\end_inset
(preliminary link
-\begin_inset LatexCommand \url{http://sdcc.sourceforge.net/release_wiki/index.php?page=SDCC+internals+and+porting}
+\begin_inset LatexCommand \url{http://sdcc.wiki.sourceforge.net/SDCC+internals+and+porting}
\end_inset
projects / fw / sdcc / blobdiff