WonderWitch: Difference between revisions

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* [[WonderWitch/FreyaBIOS|FreyaBIOS]] - providing a hardware abstraction layer and some utility functions,
* [[WonderWitch/FreyaBIOS|FreyaBIOS]] - providing a hardware abstraction layer and some utility functions,
* [[WonderWitch/FreyaOS|FreyaOS]] - providing helper libraries and higher-level concepts, such as processes and files.
* [[WonderWitch/FreyaOS|FreyaOS]] - providing helper libraries and higher-level concepts, such as processes and files.
== Memory map ==
=== Internal RAM (0x00000 - 0x0FFFF) ===
{| class="wikitable"
! From
! To
! Description
|-
| 0x00000
| 0x00???
| Interrupt vectors
|-
| 0x00???
| 0x00???
| ???
|-
| 0x00E00
| 0x03FFF
| Space used by user programs (sprite, screen, tile data)
|-
| 0x04000
| 0x0BFFF
| Space used by user programs (color tile data)
|-
| 0x0C000
| 0x0FDFF
| ???
|-
| 0x0FE00
| 0x0FFFF
| Space used by user programs (color palette data)
|-
|}
=== Cartridge SRAM (0x10000 - 0x1FFFF) ===
=== Cartridge flash (0x80000 - 0xFFFFF) ===
The 512KB of NOR flash memory is mapped and partitioned as follows:
{| class="wikitable"
! Linear address
! Size
! Description
|-
| 0x8nnnn
| rowspan="6" | 384 KB
| rowspan="6" | [[WonderWitch/File system|File system]]
|-
| 0x9nnnn
|-
| 0xAnnnn
|-
| 0xBnnnn
|-
| 0xCnnnn
|-
| 0xDnnnn
|-
| 0xEnnnn
| 64 KB
| [[WonderWitch/FreyaOS|FreyaOS]]
|-
| 0xFnnnn
| 64 KB
| [[WonderWitch/FreyaBIOS|FreyaBIOS]]
|}
=== Interrupt vectors ===
{| class="wikitable"
! Start
! End
! Description
|-
| 0x00
| 0x07
| CPU interrupts
|-
| 0x08
| 0x0F
|
|-
| 0x10
| 0x18
| [[WonderWitch/FreyaBIOS|FreyaBIOS]] interrupts
|}
Internal console RAM is generally managed by [[WonderWitch/FreyaBIOS|FreyaBIOS]], while SRAM is managed by [[WonderWitch/FreyaOS|FreyaOS]].


== Development tools ==
== Development tools ==

Latest revision as of 20:43, 19 October 2024

The WonderWitch is an official homebrew development kit released by Qute Corporation on July 18th, 2000.

Hardware

The WonderWitch cartridge is based on the Bandai 2003 mapper. It provides an RTC, as well as NOR self-flashing functionality using the Fujitsu MBM29DL400TC chip.

There were three means of acquiring WonderWitch cartridges:

  • WonderWitch, a software development kit containing a reflashable cartridge, a WonderSwan<->RS-232 adapter, a development manual and a development tool CD;
  • WonderWitch Player, a priced-down user-only version omitting the development manual and tooling;
  • The VAR program, allowing independent creators to buy reflashable cartridges in bulk, in units of 20 or 100.

Software

The WonderWitch provides an abstraction layer and helper libraries, split into two modules:

  • FreyaBIOS - providing a hardware abstraction layer and some utility functions,
  • FreyaOS - providing helper libraries and higher-level concepts, such as processes and files.

Development tools

TODO

Links

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