The wswan target provides support for targetting the Bandai WonderSwan console. In addition, experimental support is provided for targetting the WonderWitch environment via the wwitch target.

• Platform overview
• Known issues

Currently supported languages include:

• C - via gcc-ia16, supporting up to the C11 standard with GNU extensions,
• assembly - via binutils-ia16's GNU assembler.

• target-wswan - basic support metapackage

• libws - low-level hardware definitions and functions
• libwsx - high-level utilities
• libww - WonderWitch API wrapper, for the wwitch subtarget

• binutils-ia16
  • as Assembler
  • ld Linker
• gcc-ia16 6.3.0 - C compiler
  • IA-16 Options
  • IA-16 Named Address Spaces
  • IA-16 Function Attributes
  • IA-16 Built-in Functions
  • IA-16 Machine Constraints (inline assembly)
• gcc-ia16 cpp 6.3.0 - C preprocessor

• Memory management - working with banks and segmentation, controlling memory locations
• Project configuration - configuring the ROM header and others
• Writing interrupt handlers

• ELF quirks

The wswan target features multiple subtargets:

• wswan/medium (default) - create a ROM with multiple code segments, the default, stack and static data stored in IRAM;
• wswan/small - create a ROM with one code segment, slightly faster code but 64KB maximum code limit, stack and static data stored in IRAM;
• wswan/medium-sram (experimental) - create a ROM with multiple code segments, stack stored in IRAM, static data stored in SRAM;
• wswan/small-sram (experimental) - create a ROM with one code segment, stack stored in IRAM, static data stored in SRAM;
• wswan/bootfriend - special subtarget for creating BootFriend executables which execute from RAM.

In addition, there exists an experimental subtarget wwitch for targeting the Freya abstraction layer used by the WonderWitch platform.

• WSdev Wiki - hardware documentation
• awesome-wsdev - link hub for WonderSwan-related homebrew projects