[SeaBIOS] int 1589 test case?

Kevin O'Connor kevin at koconnor.net
Sat Jan 9 05:19:56 CET 2010

On Mon, Jan 04, 2010 at 08:54:48PM -0500, Kevin O'Connor wrote:
> On SeaBIOS, I too get "Protected mode has been entered !" followed by
> a call into resume with a shutdown code of "5".  The code then hangs -
> probably because I also used freedos.

Interestingly, if I apply this change:

--- a/src/resume.c
+++ b/src/resume.c
@@ -29,6 +29,9 @@ void VISIBLE16
 handle_resume(u8 status)
+    pic_setup();
+    asm volatile("lgdtw %cs:rombios32_gdt_48");
+    asm volatile("lidtw %cs:rmode_IDT_info");
     dprintf(1, "In resume (status=%d)\n", status);

then FreeDOS is able to resume (I see irqs working).  However, the
screen is still stuck under qemu - not sure why.


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