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tags/v0.9.3
Michael Brown 19 years ago
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commit
d5789ff4a2
1 changed files with 15 additions and 1 deletions
  1. 15
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      src/arch/i386/prefix/int19exit.c

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src/arch/i386/prefix/int19exit.c View File

@@ -1,13 +1,27 @@
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 #include "bochs.h"
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 #include "realmode.h"
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-/**
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+/** @file
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+ *
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  * The "exit via INT 19" exit path.
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  *
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  * INT 19 is the old (pre-BBS) "boot system" interrupt.  It is
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  * conventionally used now to return from a failed boot from floppy
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  * disk.
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  *
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+ */
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+
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+/**
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+ * Exit via INT19
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+ *
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+ * @v ix86		i386 register values to be loaded on exit
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+ * @ret Never
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+ * @err None
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+ *
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+ * Exit back to the BIOS by switching to real mode, reloading the
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+ * registers as they were before Etherboot started, and executing INT
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+ * 19.
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+ *
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  * @bug Not yet implemented
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  *
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  */

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