Changeset 26eff5c in rtems for c/src/lib/libbsp/i386/i386ex/start/start.S

Timestamp:

08/02/99 20:26:57 (24 years ago)

Author:

Joel Sherrill <joel.sherrill@…>

Branches:

4.10, 4.11, 4.8, 4.9, 5, master

Children:

783e8322

Parents:

60ee6da

Message:

Fix By Joel based on suggestion from Ian Lance Taylor <ian@…>
to fix problem reported by Ralf Corsepius <corsepiu@…>.

Date: Fri, 30 Jul 1999 14:53:20 -0500 (CDT)
From: <joel@…>

it is used like this in i386ex/start/start.S

/* set up same values in cache */

start.S: movw $0xFFFB, SYM(i8259s_cache)

I am heading out the door. Any other ideas what could have tripped this?

This instruction appears in a .code16 section. In a .code16 section,
current versions of gas assume that all addresses are 16 bits unless
told otherwise.

If you change the line to

addr32 movw $0xFFFB, SYM(i8259s_cache)

then you will get a 32 bit address reference.

You may want to use addr32 only when NEW_GAS is defined.

File:

• c/src/lib/libbsp/i386/i386ex/start/start.S (modified) (1 diff)

c/src/lib/libbsp/i386/i386ex/start/start.S

@@ -325 +325 @@
         SetExRegByte(INTCFG , 0x00 )
         
-        movw    $0xFFFB, SYM(i8259s_cache) /* set up same values in cache */
+        /*
+         *  The addr32 override should ensure that the address for
+         *  i8259s_cache is put in 32-bit address space.
+         */
+
+#if defined(NEW_GAS)
+        addr32 movw $0xFFFB, SYM(i8259s_cache) # set up same values in cache
+#else
+        movw    $0xFFFB, SYM(i8259s_cache)     # set up same values in cache
+#endif
         
 SYM(SetCS4):