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authorGert Hulselmans <gerth@zytor.com>2010-07-01 17:57:44 +0200
committerH. Peter Anvin <hpa@linux.intel.com>2010-07-01 13:39:34 -0700
commit01dc2ad8336cc9dbd76f1e74cd4fec2e45334797 (patch)
tree68cc1b44e61ca6a71f4deb3fe150769e827f52cf /NEWS
parent4d98f51f96a841bd80438e25d1630cb91a9e4d7f (diff)
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ifplop.c32: Detect if PLoP USB/CD INT13h hook is enabled/disabled
New module which detects if the PLoP Boot Loader already has booted a CDROM or USB drive by checking for the presence of the PLoP INT13h hook. The following assembly code (NASM) can detect the PLoP INT13h hook: mov eax,'PoLP' ; Reverse of 'PLoP' mov ebp,'DKHC' ; Reverse of 'CHKD' int 13h cmp eax,' sey' ; Reverse of 'yes ' jz plop_INT13h_active Signed-off-by: Gert Hulselmans <gerth@zytor.com> Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'NEWS')
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diff --git a/NEWS b/NEWS
index 84b77c8f..6fad0103 100644
--- a/NEWS
+++ b/NEWS
@@ -10,6 +10,8 @@ Changes in 4.01:
* ISOLINUX: change the initialization sequence to avoid
problems with certain (old) BIOSes. Special thanks to
Helmut Hullen for invaluable debugging support.
+ * ifplop.c32: new module which detects if the PLoP Boot Loader
+ already has booted a CDROM or USB drive (Gert Hulselmans).
Changes in 4.00:
* Major code base changes; all filesystem rewritten in C.