[Bug 35983] New: Regression - mz800 emulator does not show the boot loader

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=35983

            Bug ID: 35983
           Summary: Regression - mz800 emulator does not show the boot
                    loader
           Product: Wine
           Version: unspecified
          Hardware: x86
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: kernel32
          Assignee: wine-bugs at winehq.org
          Reporter: oldium.pro at seznam.cz

Created attachment 48103
  --> http://bugs.winehq.org/attachment.cgi?id=48103
Relevant back trace

I just traced down regression that happened in 1.7.3 to commit
b4ab43b3de134d2816393ba7f23f67bfc36bd33f (kernel32: Remove a 0-length read
optimization from ReadFile.).

The emulator can be found at http://mz-800.xf.cz/download.htm (download the
emulator and extract the ROMs to the ROM directory). After starting just click
the "Demo" button to start the demo.

According to the back trace the emulator is stuck in ReadFile call, which is
forwarded to ReadConsoleA - see attached backtrace.

Emulator used to work like a charm in pre-1.7.3 releases.

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