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millfork/docs/stdlib/stdio.md
2019-06-05 13:31:30 +02:00

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## stdio
The `stdio` module automatically imports the `string` and `err` modules.
It requires an implementation of `void putchar(byte a)` and therefore works only on targets with console output.
#### `void putstr(pointer str, byte len)`
Prints a string of length `len` located at address `str`.
#### `void putstrz(pointer str)`
Prints a null-terminated string located at address `str`.
If the string is longer than 255 bytes, then the behaviour is undefined (might even crash).
#### `void putword(word w)`
Prints the decimal representation of the 16-bit unsigned integer `w`.
#### `void ensure_mixedcase()`
On targets that have separate all-caps and mixed-case modes (like most Commodore machines), switches to the mixed-case mode.