Ticket #5341: esc2.patch

src/system/boot/platform/bios_ia32/bios.S

@@ -237 +237 @@
 
 /** uint32  search_keyboard_buffer()
  *  Search in keyboard buffer keycodes for F8, F12 or Space 
- *  if not found - search ESC keycode.
+ *  if not found - search ESC keycode at the end of this buffer (2 positions)
  */
 
 FUNCTION(search_keyboard_buffer)
@@ -266 +266 @@
     cmp $0x440, %si
     jnz search_cycle1
 
-    movw    $0x41E, %si // BIOS kbd buffer
-search_cycle2:
-    lodsw
+    addw    0x41C, %si
+    movw    -0x42(%si), %ax
     cmp $0x011B, %ax    // test ESC key
     jz  to_ret
-    cmp $0x440, %si
-    jnz search_cycle2
+    movw    -0x44(%si), %ax
+    cmp $0x011B, %ax    // test ESC key
 to_ret:
     pop %ds