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## 4. Examples

The morse trainer software, which consists of one C file (morse.c) and one assembler file (irq.s) will need the following separate steps to compile into an executable named morse:

> `

>             cc65 -g -Oi -t c64 morse.c
>             ca65 -g morse.s
>             ca65 -g irq.s
>             ld65 -t c64 -o morse c64.o morse.o irq.o c64.lib

> `

When using cl65, this is simplified to

> `

>             cl65 -g -Oi morse.c irq.s

> `

As a general rule, you may use cl65 instead of cc65 at most times, especially in makefiles to build object files directly from C files. Use

> `

>             .c.o:
>                     cl65 -g -Oi $<

> `

to do this.

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