Version 2K6B:
  - Modified the source files to compile with the XILINX web edition software (ISE8.2i).
  - Introduced the 68000 IP core in an alpha version.
  - Introduced the RP5C15 interface replacement for the DS1337 which is I2C also alpha state.
  - Added top level files for the use in a system on a programmable chip. These files
      all have the same extension ..._top_soc.vhd. There are now to possibilities:
      fistly use the top level entities ..._top.vhd for stand alone chip versions.
      secondly use the ..._top_soc.vhd. for an integrated system on one chip.
  - Added a top level file for the ST(E) compatible machine. This file is located
      in the WF_SUSKA directory.
  - Some minor bug fixes in several files. See the file histories for more information.
  
WF - 20061224.

Version 2K6A:
Initial release of a set of models for the most 1040ST chips as follows:
  - BLITTER: Complete implementation of the famous ATARI bit block transfer processor.
  - SHIFTER: Video shifter with all enhancements of the STE machines (microwire interface,
             4 bit per colour DA resolution, fine scrolling feature). Aditionally STBook or
             STACY SHADOW registers for the power management.
  - GLUE:    1040 GLUE logic with enhancements concerning TOS ROM configuration, real time
             clock decoding, interrupt logic and some minor STE machine logic.
  - MCU:     Memory controller as in the ST or STE machines.
  - DMA:     Direct memory access controller compatible with the ST DMA controller.
  - WD1772:  Floppy drive controller core with enhancements concerning HD floppies. Built in
             digital phase locked loop (PLL) for optimal data recovery. Besides these enhance-
             ments, the core is highly compatible with the WD1772 of the Western Digital Cor-
             poration.
  - YM2149:  Sound controller IP core with a digital DA converter approach with pulse width
             modulation logic. The core is compatible with Yamaha's YM2149 chip.
  - UART:    The serial interface core behaves like the 6850 ACIA.
  - MFP:     A solution for a multi function port identically to the MC68901 from Motorola.
  - SHADOW:  Atari had the STACY and the STBook, which were notebooks driving a LCD panel with
             a screen resolution of 640x400. Since these custom LCD panels are obsolete, the
             new SHADOW IP (intelectual property) core drives a standard VGA display with
             640x480 dots in monochrome mode.

WF - 20060609.