Cologne revision history
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V0.8 - 2009-04-08 (FluBBa)
   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 (FluBBa)
   Added Savestates.
   Added virtual joystick.
   Added joystick config.
   Fixed "Go Multiboot" when used from Pogo.
   More colorful palette.

V0.6 - 2006-07-24 (FluBBa)
   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 (FluBBa)
   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 (FluBBa)
   Fixed the NMI bug.
   Added 16bit sound mixing.
   Optimised some of the shift instructions.
   Optimised DD/FD instructions.

V0.3 - 2006-02-23 (FluBBa)
   Fixed keypad/joystick reading (Atari games).
   This also fixed Q-Bert II.

V0.2 - 2006-02-20 (FluBBa)
   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 (FluBBa)
   Initial release.

V0.0 - 2006-01-25 (FluBBa)
   Started Coding.

