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2. Basic Usage

The cl65 compile and link utility may be used to convert, compile, assemble and link files. While the separate tools do just one step, cl65 knows how to build object files from C files (by calling the compiler, then the assembler) and other things.

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Usage: cl65 [options] file [...]
Short options:
  -c                            Compile and assemble but don't link
  -d                            Debug mode
  -g                            Add debug info
  -h                            Help (this text)
  -l name                       Create an assembler listing file
  -m name                       Create a map file
  -mm model                     Set the memory model
  -o name                       Name the output file
  -r                            Enable register variables
  -t sys                        Set the target system
  -u sym                        Force an import of symbol `sym'
  -v                            Verbose mode
  -vm                           Verbose map file
  -C name                       Use linker config file
  -Cl                           Make local variables static
  -D sym[=defn]                 Define a preprocessor symbol
  -I dir                        Set a compiler include directory path
  -L path                       Specify a library search path
  -Ln name                      Create a VICE label file
  -O                            Optimize code
  -Oi                           Optimize code, inline functions
  -Or                           Optimize code, honour the register keyword
  -Os                           Optimize code, inline known C funtions
  -S                            Compile but don't assemble and link
  -T                            Include source as comment
  -V                            Print the version number
  -W name[,...]                 Supress compiler warnings
  -Wa options                   Pass options to the assembler
  -Wl options                   Pass options to the linker

Long options:
  --add-source                  Include source as comment
  --asm-args options            Pass options to the assembler
  --asm-define sym[=v]          Define an assembler symbol
  --asm-include-dir dir         Set an assembler include directory
  --bin-include-dir dir         Set an assembler binary include directory
  --bss-label name              Define and export a BSS segment label
  --bss-name seg                Set the name of the BSS segment
  --cc-args options             Pass options to the compiler
  --cfg-path path               Specify a config file search path
  --check-stack                 Generate stack overflow checks
  --code-label name             Define and export a CODE segment label
  --code-name seg               Set the name of the CODE segment
  --codesize x                  Accept larger code by factor x
  --config name                 Use linker config file
  --cpu type                    Set cpu type
  --create-dep name             Create a make dependency file
  --create-full-dep name        Create a full make dependency file
  --data-label name             Define and export a DATA segment label
  --data-name seg               Set the name of the DATA segment
  --debug                       Debug mode
  --debug-info                  Add debug info
  --feature name                Set an emulation feature
  --force-import sym            Force an import of symbol `sym'
  --forget-inc-paths            Forget include search paths (compiler)
  --help                        Help (this text)
  --include-dir dir             Set a compiler include directory path
  --ld-args options             Pass options to the linker
  --lib file                    Link this library
  --lib-path path               Specify a library search path
  --list-targets                List all available targets
  --listing name                Create an assembler listing file
  --list-bytes n                Number of bytes per assembler listing line
  --mapfile name                Create a map file
  --memory-model model          Set the memory model
  --module                      Link as a module
  --module-id id                Specify a module id for the linker
  --o65-model model             Override the o65 model
  --obj file                    Link this object file
  --obj-path path               Specify an object file search path
  --register-space b            Set space available for register variables
  --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)
  --start-addr addr             Set the default start address
  --static-locals               Make local variables static
  --target sys                  Set the target system
  --version                     Print the version number
  --verbose                     Verbose mode
  --zeropage-label name         Define and export a ZEROPAGE segment label
  --zeropage-name seg           Set the name of the ZEROPAGE segment
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Most of the options have the same meaning than the corresponding compiler, assembler or linker option. See the documentation for these tools for an explanation. If an option is available for more than one of the tools, it is set for all tools, where it is available. One example for this is -v: The compiler, the assembler and the linker are all called with the -v switch.

There are a few remaining options that control the behaviour of cl65:

-S

This option forces cl65 to stop after the assembly step. This means that C files are translated into assembler files, but nothing more is done. Assembler files, object files and libraries given on the command line are ignored.

-c

This options forces cl65 to stop after the assembly step. This means that C and assembler files given on the command line are translated into object files, but there is no link step, and object files and libraries given on the command line are ignored.

-o name

The -o option is used for the target name in the final step. This causes problems, if the linker will not be called, and there are several input files on the command line. In this case, the name given with -o will be used for all of them, which makes the option pretty useless. You shouldn't use -o when more than one output file is created.

-t sys, --target sys

The default for this option is different from the compiler and linker in the case that the option is missing: While the other tools (compiler, assembler and linker) will use the "none" system settings by default, cl65 will use the C64 as a target system by default. This was chosen since most people seem to use cc65 to develop for the C64.

-Wa options, --asm-args options

Pass options directly to the assembler. This may be used to pass options that aren't directly supported by cl65. Several options may be separated by commas, the commas are replaced by spaces when passing them to the assembler. Beware: Passing arguments directly to the assembler may interfere with some of the defaults, because cl65 doesn't parse the options passed. So if cl65 supports an option by itself, do not pass this option to the assembler by means of the -Wa switch.

-Wc options, --cc-args options

Pass options directly to the compiler. This may be used to pass options that aren't directly supported by cl65. Several options may be separated by commas, the commas are replaced by spaces when passing them to the compiler. Beware: Passing arguments directly to the compiler may interfere with some of the defaults, because cl65 doesn't parse the options passed. So if cl65 supports an option by itself, do not pass this option to the compiler by means of the -Wc switch.

-Wl options, --ld-args options

Pass options directly to the linker. This may be used to pass options that aren't directly supported by cl65. Several options may be separated by commas, the commas are replaced by spaces when passing them to the linker. Beware: Passing arguments directly to the linker may interfere with some of the defaults, because cl65 doesn't parse the options passed. So if cl65 supports an option by itself, do not pass this option to the linker by means of the -Wl switch.


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