---------------------------------------------------------------------------
Usage: cc65 [options] file
Short options:
- -A Strict ANSI mode
-Cl Make local variables static
-Dsym[=defn] Define a symbol
-I dir Set an include directory search path
Long options:
--add-source Include source as comment
- --ansi Strict ANSI mode
--bss-name seg Set the name of the BSS segment
--check-stack Generate stack overflow checks
--code-name seg Set the name of the CODE segment
--register-vars Enable register variables
--rodata-name seg Set the name of the RODATA segment
--signed-chars Default characters are signed
+ --standard std Language standard (c89, c99, cc65)
--static-locals Make local variables static
--target sys Set the target system
--verbose Increase verbosity
<descrip>
- <label id="option-A">
- <tag><tt>-A, --ansi</tt></tag>
-
- This option disables any compiler exensions. Have a look at section 5
- for a discussion of compiler extensions. In addition, the macro
- <tt/__STRICT_ANSI__/ is defined, when using one of these options.
-
-
<tag><tt>--bss-name seg</tt></tag>
Set the name of the bss segment.
signedchars"></tt> for better control of this option.
+ <label id="option--standard">
+ <tag><tt>--standard std</tt></tag>
+
+ This option allows to set the language standard supported. The argument is
+ one of
+ <itemize>
+ <item>c89
+ <item>c99
+ <item>cc65
+ </itemize>
+
+
<tag><tt>-t target, --target target</tt></tag>
This option is used to set the target system. The target system
<itemize>
<item>none
<item>apple2
+ <item>apple2enh
<item>atari
<item>atmos
<item>c16 (works also for the c116 with memory up to 32K)
<item>c64
<item>c128
- <item>plus4
<item>cbm510 (CBM-II series with 40 column video)
<item>cbm610 (all CBM-II II computers with 80 column video)
- <item>pet (all CBM PET systems except the 2001)
<item>geos
+ <item>lunix
+ <item>nes
+ <item>pet (all CBM PET systems except the 2001)
+ <item>plus4
+ <item>supervision
</itemize>
<tag><tt>-v, --verbose</tt></tag>
<itemize>
-<item> The compiler allows single line comments that start with //. This
- feature is disabled in strict ANSI mode.
- <p>
<item> The compiler allows unnamed parameters in parameter lists. The
compiler will not issue warnings about unused parameters that don't
- have a name. This feature is disabled in strict ANSI mode.
+ have a name. This feature can be disabled with the <tt><ref
+ id="option--standard" name="--standard"></tt> command line option.
<p>
<item> The compiler has some additional keywords:
<p>
<item><tt/__attribute__/
</itemize>
<p>
- The keywords without the underlines are disabled in strict ANSI mode.
+ The keywords without the underlines can be disabled with the
+ <tt><ref id="option--standard" name="--standard"></tt> command line
+ option.
<p>
<item> The datatypes "float" and "double" are not available.
<p>
conventions (see below). This means, that you may not mix pointers to
those functions with pointers to user written functions.
<p>
-</itemize>
+</itemize>
There may be some more minor differences, I'm currently not aware off. The
biggest problem is the missing float data type. With this limitation in
<itemize>
-<item> The compiler allows // comments (like in C++ and in the proposed C9x
- standard). This feature is disabled by <tt><ref id="option-A"
- name="-A"></tt>.
- <p>
-
<item> The compiler allows to insert assembler statements into the output
file. The syntax is
<tscreen><verb>
void __fastcall__ f (unsigned char c)
</verb></tscreen>
- The first form of the fastcall keyword is in the user namespace and is
- therefore disabled in strict ANSI mode.
+ The first form of the fastcall keyword is in the user namespace and can
+ therefore be disabled with the <tt><ref id="option--standard"
+ name="--standard"></tt> command line option.
For functions declared as <tt/fastcall/, the rightmost parameter is not
pushed on the stack but left in the primary register when the function
<p>
<item> cc65 implements flexible array struct members as defined in the C99 ISO
- standard. As an extension, in non ANSI mode, these fields may be
- initialized. There are several exceptions, however (which is probably
- the reason why the standard does not define this feature, because it is
- highly unorthogonal). Flexible array members cannot be initialized...
+ standard. As an extension, these fields may be initialized. There are
+ several exceptions, however (which is probably the reason why the
+ standard does not define this feature, because it is highly
+ unorthogonal). Flexible array members cannot be initialized...
<itemize>
<item> ...when defining an array of structs with flexible members.
This macro expands to the current line number.
- <tag><tt>__STRICT_ANSI__</tt></tag>
+ <tag><tt>__CC65_STD__</tt></tag>
- This macro is defined to 1 if the <tt/-A/ compiler option was given, and
- undefined otherwise.
+ This macro is defined to one of the following depending on the <tt><ref
+ id="option--standard" name="--standard"></tt> command line option:
+ <itemize>
+ <item><tt/__CC65_STD_C89__/
+ <item><tt/__CC65_STD_C99__/
+ <item><tt/__CC65_STD_CCC65__/
+ </itemize>
<tag><tt>__OPT__</tt></tag>
<p>
The first form is in the user namespace and is disabled by <tt><ref
-id="option-A" name="-A"></tt>.
+id="option--standard" name="--standard"></tt> if the argument is not <tt/cc65/.
The asm statement may be used inside a function and on global file level. An
inline assembler statement is a primary expression, so it may also be used as
--------------------------------------------------------------------------
</verb></tscreen>
-In acknowledgment of this copyright, I will place my own changes to the
-compiler under the same copyright. Please note however, that the library
-and all binutils are covered by another copyright, and that I'm planning
-to do a complete rewrite of the compiler, after which the compiler
-copyright will also change.
-
-For the list of changes requested by this copyright see newvers.txt.
-
+Small parts of the compiler (parts of the preprocessor and main parser) are
+still covered by this copyright. The main portion is covered by the usual
+cc65 license, which reads:
+
+This software is provided 'as-is', without any expressed or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+<enum>
+<item> The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+<item> Altered source versions must be plainly marked as such, and must not
+ be misrepresented as being the original software.
+<item> This notice may not be removed or altered from any source
+ distribution.
+</enum>
</article>
projects / cc65 / blobdiff