1a2,48
> 27 May 2004. Summary of changes for version 20040527:
>
> 1) ACPI CA Core Subsystem:
>
> Completed a new design and implementation for EBDA (Extended BIOS
> Data Area) support in the RSDP scan code. The original code
> improperly scanned for the EBDA by simply scanning from memory
> location 0 to 0x400. The correct method is to first obtain the
> EBDA pointer from within the BIOS data area, then scan 1K of
> memory starting at the EBDA pointer. There appear to be few if
> any machines that place the RSDP in the EBDA, however.
>
> Integrated a fix for a possible fault during evaluation of
> BufferField arguments. Obsolete code that was causing the
> problem was removed.
>
> Found and fixed a problem in the Field Support Code where data
> could be corrupted on a bit field read that starts on an aligned
> boundary but does not end on an aligned boundary. Merged the
> read/write "datum length" calculation code into a common
> procedure.
>
> Rolled in a couple of changes to the FreeBSD-specific header.
>
> Code and Data Size: Current and previous core subsystem library
> sizes are shown below. These are the code and data sizes for the
> acpica.lib produced by the Microsoft Visual C++ 6.0 compiler, and
> these values do not include any ACPI driver or OSPM code. The
> debug version of the code includes the debug output trace
> mechanism and has a much larger code and data size. Note that
> these values will vary depending on the efficiency of the
> compiler and the compiler options used during generation.
>
> Previous Release:
> Non-Debug Version: 77.6K Code, 11.5K Data, 89.1K Total
> Debug Version: 163.2K Code, 67.2K Data, 230.4K Total
> Current Release:
> Non-Debug Version: 77.7K Code, 11.5K Data, 89.2K Total
> Debug Version: 163.3K Code, 67.2K Data, 230.5K Total
>
>
> 2) iASL Compiler/Disassembler:
>
> Fixed a generation warning produced by some overly-verbose
> compilers for a 64-bit constant.
>
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