Cologne GBA

Cologne
General
Author	FluBBa (Fredrik Olsson)
Type	Console
Version	0.8
License	Mixed
Last Updated	2009/04/08
Links
Download
Website
Source

Cologne is a Coleco Vision emulator for the GBA. Initially ported from SMSAdvance.

Features

• A lot of games can actually be played.

Installation

Note: You must supply a BIOS to be able to run games.

Run Cologne.exe to add roms to the emulator.

Use the Bios tick box to add a BIOS.

Do no overwrite the original .gba file.

User guide

Menu

Controller:

• Autofire - Select if you want autofire.
• Controller - 2P control player 2.
• Swap A/B - Swap which GBA button is mapped to which Coleco fire button.
• Map L to - Map the L button to any Coleco keypad button.
• Map R to - Map the R button to any Coleco keypad button.
• Map Start to - Map the Start button to any Coleco keypad button.
• Map Select to - Map the Select button to any Coleco keypad button.

Display:

• Display - Unscaled mode (L/R to scroll) ,Scaled modes (L+SELECT).
• Scaling - Here you can select if you want flicker or barebones lineskip.
• Gamma - Lets you change the gamma ("brightness").
• Perfect sprites - Uses a lot of cpu, only use when really necessary.
• Disable background - Turn on/off background rendering.
• Disable sprites - Turn on/off sprite rendering.

Other Settings:

• VSync - Switch between speed modes, can also be toggled with L+START.
  • On - Will wait for the next vsync if needed, best for most games.
  • Force - Can help with graphics in some games, often slow.
  • Off - Can speed up some games if they don't allready use all cpu time.
  • Slowmo - Good for beating that extra fast game.
• FPS_Meter - Toggle fps meter.
• Autosleep - Change the autosleep time, also see Sleep.
• EWRAM Speed - Use with caution.
• Fake spritecollision - Some games require this.
• TV Type - Change the video standard.

Others:

• Link Transfer - Transfer small games to other GBAs, also see the advanced topic.
• Go Multiboot - Useful if you want to boot someone else up and eject the cartridge. Do not eject cartridges from a GameBoy Player.
• Sleep - Put the GBA into sleepmode.
• Restart - Lets you select a new game.
• Exit - Let's you exit the emulator back to Pogo or the FA/F2A menu.

Advanced

EWRAM speed:

• This changes the waitstate on EWRAM between 2 and 1.
• This can probably damage your GBA and definitly uses more power, around 10% speedgain. Use at your own risk.

Link transfer:

• Send a Coleco game to another GBA.
• The other GBA must be in multiboot receive mode (no cartridge inserted, powered on and waiting with the "GAME BOY" logo displayed).
• Only one game can be sent at a time.
• A game can only be sent to 1 (one) Gameboy at a time, disconnect all other gameboys during transfer.
• Note: Use an original Nintendo cable.

PogoShell:

• Add an empty file and a BIOS.
• Copy col.gba to the plugin folder (or compress it to mbz before you copy it).
• Then rename it to cologne.bin, and add this line to the pogo.cfg file:
  • col 1 cologne.bin 2
  • rom 1 cologne.bin 2
• Or:
  • col 1 cologne.mbz 2
  • rom 1 cologne.mbz 2

Controls

Menu:

Up/Down - Select game

A/B - Start selected game

In game:

L+R - Open the menu

A - Choose

B or L+R - Cancel

R+Start - Show/Hide the virtual Coleco Joystick

Start+Select - Wake up from sleep mode

Screenshots

Known issues

Missing:

• Several different controllers.
• Not all keys are mapped to the GBA.
• Correct sprite collision and overflow.
• Screen modes 1 & 3.

Bugs:

• Some games freze/crash.

Credits

Huge thanks to Loopy for the incredible PocketNES and the builder.

Thanks to:

• Reesy for help with the Z80 emu core.
• Some MAME people + Maxim for the SN76496 info.
• Sean Young for the TMS9918 info.
• Charles MacDonald for more VDP info.
• Ghislain "cador" for the splashscreen.
• rvchipie7 (?) for inspiration for the virtual joystick.

Changelog

V0.8 2009/04/08

• Fixed initializing of all CPU regs on reset.
• Fixed timing of HALT instruction.
• Fixed pushing and poping of AF register (BC Quest for Tires II).
• Optimised tile rendering.
• Optimised all Z80 memory reads, one instruction and cycle shorter.
• Optimised DAA opcode.
• Optimised DEC opcodes.
• Optimised SBC A/HL opcode.
• Optimised one of the SRA opcodes.
• Optimised CPI, CPD, CPIR & CPDR opcodes.

V0.7 2006/09/05

• Added Savestates.
• Added virtual joystick.
• Added joystick config.
• Fixed "Go Multiboot" when used from Pogo.
• More colorful palette.

V0.6 2006/07/24

• Added "Go Multiboot" menu option.
• Added menu option for disabling background/sprites.
• Fixed multiboot transfer.
• Optimised tiledecoding.
• Optimised some of the SBC instructions.
• Optimised IO port access.

V0.5 2006/05/11

• Fixed soundclicks in rom selection menu.
• Fixed rare lockup bug in game select.
• Fixed double 16x16 sprites in scaled mode.
• Fixed reseting of scalemode on restart.
• Fixed graphics mode1 a bit.

V0.4 2006/03/12

• Fixed the NMI bug.
• Added 16bit sound mixing.
• Optimised some of the shift instructions.
• Optimised DD/FD instructions.

V0.3 2006/02/23

• Fixed keypad/joystick reading (Atari games).
• This also fixed Q-Bert II.

V0.2 2006/02/20

• Added PAL/NTSC switch (PAL timing fixes some games...).
• Fixed volume attenuation for the soundchip.
• Fixed rare gfx error in Pogoshell.
• Proper builder. (Loopy)

V0.1 2006/01/30

• Initial release.

V0.0 2006/01/25

• Started Coding.

External links

• GitHub - https://github.com/FluBBaOfWard
• Author's website - http://hem.passagen.se/flubba/gba.html
• Author's website - http://www.gbaretro.com/