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68 lines
1.7 KiB
Markdown
68 lines
1.7 KiB
Markdown
[< back to index](../doc_index.md)
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# Getting started
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## Hello world example
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Save the following as `hello_world.mfk`:
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```
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import stdio
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void main(){
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putstrz("hello world"z)
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while(true){}
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}
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```
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Compile it using the following commandline:
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```
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java -jar millfork.jar hello_world.mfk -o hello_world -t c64
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```
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or if you're using a Windows native build:
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```
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millfork hello_world.mfk -o hello_world -t c64
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```
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Run the output executable (here using the VICE emulator):
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```
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x64 hello_world.prg
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```
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## Basic command-line usage
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The following options are obligatory when compiling your sources:
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* `-o <FILENAME>` – specifies the base name for your output file, an appropriate file extension will be appended.
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* `-t <PLATFORM>` – specifies the target platform.
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Each platform is defined in an `.ini` file in the include directory.
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For the list of supported platforms, see [Supported platforms](target-platforms.md)
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You may be also interested in the following:
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* `-O`, `-O2`, `-O3`, `-O4` – enable optimization (various levels)
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* `-finline` – automatically inline functions for better optimization
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* `-fipo` – enable interprocedural optimization
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* `-s` – additionally generate assembly output
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(if targeting Intel 8080/8085, use `--syntax=intel` or `--syntax=zilog` to choose the preferred assembly syntax)
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* `-fsource-in-asm` – show original Millfork source in the assembly output
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* `-g` – additionally generate a label file
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* `-r <PROGRAM>` – automatically launch given program after successful compilation; you can supply extra params for it with `-R <PARAM>`
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* `-Wall` – enable all warnings
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* `--help` – list all commandline options
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For the comprehensive list of command-line options, see [Command-line options](./command-line.md).
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