v0.16.0

A debugger in the terminal.

Added

• A debugger panel on F7: registers, flags, the PPU's position and
  the code around the PC of the paused game, beside the game screen,
  with stepping by instruction, scanline or frame. (#82)
• The debugger's memory view (Tab): eight bytes a row with their
  text, the bytes the last step changed marked; g jumps the code or
  memory view to an address or a register's value. (#82)
• Breakpoints in the debugger (b): a game that reaches one stops
  before the instruction there and opens the debugger; scanline and
  frame steps stop at them too. (#82)

v0.15.2

Fixed

• On Windows a held key stays held until it is let go. Windows consoles
  report every key release, but tuiba treated them like terminals that
  report none and let a held key drop after half a second, before the
  first auto-repeat — a brief stutter when holding a direction. (#24)

Changed

• CI now runs the real terminal interface on Linux, macOS and Windows
  (ConPTY), driving the library, a game, the keypad and the way out. (#24)

tuiba 0.15.1

Fixed

• A headless run whose output is cut short (| head) now stops quietly
  instead of reporting a broken pipe as an error and writing it to the
  crash log.

tuiba 0.15.0

Tools for looking inside a running game.

Added

• --disasm [arm:|thumb:]START..END (or START+LENGTH) disassembles
  memory after a headless run. tuiba-core has the disassembler as
  cpu::disasm::{arm, thumb}; it decodes through the CPU's own decoder,
  so it shows what the emulator runs. (#22)
• --profile N counts where the CPU spends its cycles over the last N
  frames of a headless run: how much of the time it ran at all, and the
  busiest addresses with their instruction and most common return
  address. (#22)
• --trace-io LIST logs every write to the chosen I/O registers during
  a headless run, with frame, scanline, cycle and the instruction or DMA
  channel that made it. LIST takes register names, groups (lcd,
  sound, dma, timers, serial, irq, all) and hex offsets.
  tuiba-core: Gba::trace_io and Gba::take_io_writes. (#22)

v0.14.0

A faster picture, and an empty link port.

Added

• The link port answers as an empty one instead of plain memory: an
  internally clocked transfer finishes with all ones and the serial
  interrupt, multiplayer mode reports a lone child, and RCNT powers
  up in general-purpose mode. Games that probe for a link cable on
  boot see none. (#25)

Changed

• Faster scanline rendering: text backgrounds are drawn a tile row at a
  time and windows are resolved once per line. Headless speed on the
  homebrew test set is up 12–28 %, with identical frames. (#7)

v0.13.0

Your own BIOS, if you have one.

Added

• Real BIOS images: --bios FILE, or gba_bios.bin in the config
  directory for every game. Games boot through the logo and chime and
  every system call runs on the real thing; --skip-intro goes straight
  to the game and --no-bios back to the built-in replacement. The
  console's and the Nintendo DS's dumps are recognised; other images
  run with a note in the status bar. (#14)
• CI runs the test ROMs on Cult-of-GBA's replacement BIOS too, with and
  without its intro, and expects the same frames as without a BIOS.

Changed

• Save states never contain the BIOS image. Existing states still load.
  A state taken while a real BIOS was running needs one to be loaded
  back, and says so instead of crashing.
• tuiba-core: Gba::with_bios(cartridge, image, Boot) replaces
  Gba::load_bios, and Gba::restore returns a Result
  (GbaError::StateNeedsBios).

v0.12.0

Cheats, and a pad button for rewind.

Added

• Cheats: <rom>.cht next to the ROM, in libretro's format (so
  RetroArch and libretro-database cheat files work after a rename), and
  F6 to turn them on and off in a game. Raw, GameShark v1/v2, Action
  Replay v3 and CodeBreaker codes, encrypted or not, are told apart by
  their shape. ROM-patch and device-button codes are skipped with a
  note; re-keyed (DEADFACE) and encrypted CodeBreaker codes are not
  supported yet. (#43)

Changed

• Pad defaults: LT/L2 held rewinds, mirroring RT/R2 fast-forward,
  and the save-state panel moved from L2 to the west face button (X
  on Xbox), which then saves inside the panel. A second press of it
  within 300 ms of opening is ignored, so a double tap cannot
  overwrite a slot. (#45)

v0.11.0

Two quality-of-life additions: play zipped ROMs as they are, and see
games in the colours their artists saw.

Added

• ROMs inside .zip archives: the library lists them and plays them
  without unpacking, and tuiba game.zip works like tuiba game.gba.
  A lone ROM in an archive is named after the archive, so its save,
  patch and save states sit next to it as game.sav, game.bps, …
  (#41)
• LCD colour correction: C in a game, or --color-correction, shows
  colours as the GBA's screen did — darker and less saturated — in
  every renderer. Screenshots keep the raw colours. (#42)

v0.10.0

Accuracy work: nothing new to press, but games that do raster tricks
look more like they do on hardware.

Added

• Open bus and BIOS read protection. Reads from unmapped addresses
  return what the bus last carried, and the BIOS reads back as the
  hardware leaves it once a game is running; jsmolka's bios.gba now
  passes in CI. (#13, #48)
• Affine backgrounds keep their own reference points, reloaded at
  VBlank and when a game writes them, and stepped line by line, so
  perspective effects that stream new values per line or bend the
  walk mid-frame draw correctly. (#12, #49)
• DMA runs alongside the rest of the machine instead of all at once:
  an HBlank or sound DMA during a long copy now happens on every line,
  at its own moment. (#11, #50)
• Writes to the screen's registers, palette, VRAM or OAM while a line
  is being drawn change only the pixels after them. (#11, #51)
• The per-line limit on sprite drawing: sprites past the hardware's
  cycle budget are cut off, as on the console. (#11, #52)

Changed

• Save states carry the new state in trailing sections; files from
  earlier versions still load.
• Headless runs are a few percent faster.

v0.9.0

Added

• Windows builds. Each release now carries a zip with tuiba.exe for
  64-bit Windows, with the C runtime built in, so nothing else needs
  installing. Run it in Windows Terminal. (#47)
• Performance figures. --stats or F3 shows in the status bar the
  emulated and the shown frame rate, how long drawing a frame takes
  (average and worst over the last second), how much sound is queued
  and how often it ran dry: what to include in a report when a game
  stutters or crackles. (#47)
• A speed limit for fast-forward. --fast-speed 2 to 16, or max
  (the default), and F4 in a game cycles ×2, ×4 and uncapped. (#44)

Changed

• The README says what building on Windows really needs (the MSVC
  toolchain and the Visual Studio Build Tools), and points to the
  prebuilt binaries.