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====== wswan (WonderSwan/WonderWitch) ======

The wswan target provides support for targetting the Bandai WonderSwan console. In addition, experimental support is provided for targetting the WonderWitch abstraction layer.

Currently supported languages include:
 
  * **assembly** - via binutils-ia16's GNU assembler, using Intel-style opcodes and syntax;
  * **C** - via gcc-ia16, supporting up to the C11 standard with GNU extensions.

===== Overview =====

  * [[wswan:platform_overview|Platform overview]]
  * [[wswan:bugs|Known bugs]]

===== Packages =====

  * ''target-wswan'' - basic support metapackage

===== Subtargets =====

The wswan target features multiple subtargets:

  * ''wswan/medium'' - create a ROM with multiple code segments, the default;
  * ''wswan/small'' - create a ROM with one code segment, slightly faster code but 64KB maximum code limit;
  * ''wswan/bootfriend'' - special subtarget for creating [[https://wonderful.asie.pl/ws/bootfriend/|BootFriend]] executables which execute from RAM.

In addition, there exists an [[wswan:wwitch|experimental subtarget]] ''wwitch'' for targeting the Freya abstraction layer used by the WonderWitch platform.

===== Libraries =====

  * [[https://wonderful.asie.pl/doc/libws/|libws]] - low-level hardware library
  * [[https://wonderful.asie.pl/doc/libwsx/|libwsx]] - high-level utility library
  * [[https://wonderful.asie.pl/doc/libww/|libww]] - WonderWitch API library
  * [[https://wonderful.asie.pl/doc/libwwcl/|libwwcl]] - WonderWitch compatibility layer

===== Guides =====

  * These might become a tutorial one day (very work-in-progress):
    * [[wswan:tutorial:development_environment|Development environment]]
    * [[wswan:tutorial:hello_display|Hello, Display!]]


  * [[wswan:guide:porting_wwitch|Porting WonderWitch applications to standalone programs]] - the ''libwwcl'' WonderWitch compatibility layer


  * [[wswan:guide:memory_management|Memory management]] - working with banks and segmentation, controlling memory locations
  * [[wswan:guide:optimization_v30mz|Optimizing for the NEC V30MZ CPU]]
  * [[wswan:guide:interrupt_handlers|Writing interrupt handlers]]
  * [[wswan:guide:c_assembly|Writing assembly]] - using the GNU assembler
    * [[wswan:guide:c_calling_convention|C calling convention]]
    * [[wswan:guide:c_inline_assembly|Writing inline C assembly]]
  * [[wswan:guide:wfconfig|wfconfig.toml]] - configuring the ROM header

===== Other documentation =====

  * [[https://wonderful.asie.pl/doc/binutils-ia16/|binutils-ia16]]
    * [[https://wonderful.asie.pl/doc/binutils-ia16/as.html|as Assembler]]
    * [[https://wonderful.asie.pl/doc/binutils-ia16/ld.html|ld Linker]]
  * [[https://wonderful.asie.pl/doc/gcc-ia16/gcc-6.3.0/gcc/|gcc-ia16 6.3.0]] - C compiler
    * [[https://wonderful.asie.pl/doc/gcc-ia16/gcc-6.3.0/gcc/IA_002d16-Options.html|IA-16 Options]]
    * [[https://wonderful.asie.pl/doc/gcc-ia16/gcc-6.3.0/gcc/Named-Address-Spaces.html#IA_002d16-Named-Address-Spaces-1|IA-16 Named Address Spaces]]
    * [[https://wonderful.asie.pl/doc/gcc-ia16/gcc-6.3.0/gcc/IA_002d16-Function-Attributes.html|IA-16 Function Attributes]]
    * [[https://wonderful.asie.pl/doc/gcc-ia16/gcc-6.3.0/gcc/IA_002d16-Built_002din-Functions.html|IA-16 Built-in Functions]]

===== Other sources =====

  * [[https://ws.nesdev.org/wiki/Main_Page|WSdev Wiki]] - hardware documentation
  * [[https://github.com/WonderfulToolchain/awesome-wsdev|awesome-wsdev]] - link hub for WonderSwan-related homebrew projects