mirror of
https://github.com/irmen/prog8.git
synced 2024-08-25 08:28:59 +00:00
95 lines
3.0 KiB
ReStructuredText
95 lines
3.0 KiB
ReStructuredText
************************
|
|
Compiler library modules
|
|
************************
|
|
|
|
The compiler provides several "built-in" library modules with useful subroutine and variables.
|
|
|
|
Some of these may be specific for a certain compilation target, or work slightly different,
|
|
but some effort is put into making them available across compilation targets.
|
|
|
|
This means that as long as your program is only using the subroutines from these
|
|
libraries and not using hardware- and/or system dependent code, and isn't hardcoding certain
|
|
assumptions like the screen size, the exact same source program can
|
|
be compiled for multiple different target platforms. Many of the example programs that come
|
|
with Prog8 are written like this.
|
|
|
|
You can ``%import`` and use these modules explicitly, but the compiler may also import one or more
|
|
of these library modules automatically as required.
|
|
|
|
.. caution::
|
|
The resulting compiled binary program *only works on the target machine it was compiled for*.
|
|
You must recompile the program for every target you want to run it on.
|
|
|
|
|
|
|
|
syslib
|
|
------
|
|
The "system library" for your target machine. It contains many system-specific definitions such
|
|
as ROM/kernal subroutine definitions, memory location constants, and utility subroutines.
|
|
|
|
Many of these definitions overlap for the C64 and Commander X16 targets so it is still possible
|
|
to write programs that work on both targets without modifications.
|
|
|
|
conv
|
|
----
|
|
Routines to convert strings to numbers or vice versa.
|
|
|
|
- numbers to strings, in various formats (binary, hex, decimal)
|
|
- strings in decimal, hex and binary format into numbers
|
|
|
|
|
|
textio (txt.*)
|
|
--------------
|
|
This will probably be the most used library module. It contains a whole lot of routines
|
|
dealing with text-based input and output (to the screen). Such as
|
|
|
|
- printing strings and numbers
|
|
- reading text input from the user via the keyboard
|
|
- filling or clearing the screen and colors
|
|
- scrolling the text on the screen
|
|
- placing individual characters on the screen
|
|
|
|
|
|
diskio
|
|
------
|
|
Provides several routines that deal with disk drive I/O, such as:
|
|
|
|
- show directory
|
|
- display disk drive status
|
|
- load and save data from and to the disk
|
|
- delete and rename files on the disk
|
|
|
|
|
|
floats
|
|
------
|
|
Provides definitions for the ROM/kernel subroutines and utility routines dealing with floating
|
|
point variables. This includes ``print_f``, the routine used to print floating point numbers.
|
|
|
|
|
|
graphics
|
|
--------
|
|
High-res monochrome bitmap graphics routines:
|
|
|
|
- clearing the screen
|
|
- drawing lines
|
|
- drawing circles and discs (filled circles)
|
|
- plotting individual pixels
|
|
|
|
|
|
math
|
|
----
|
|
Low level math routines. You should not normally have to bother with this directly.
|
|
The compiler needs it to implement most of the math operations in your programs.
|
|
|
|
|
|
cx16logo
|
|
--------
|
|
A 'fun' module that contains the Commander X16 logo and that allows you
|
|
to print it anywhere on the screen.
|
|
|
|
|
|
prog8_lib
|
|
---------
|
|
Low level language support. You should not normally have to bother with this directly.
|
|
The compiler needs it for verious built-in system routines.
|