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+\ *****************************************************************************
+\ * Copyright (c) 2004, 2008 IBM Corporation
+\ * All rights reserved.
+\ * This program and the accompanying materials
+\ * are made available under the terms of the BSD License
+\ * which accompanies this distribution, and is available at
+\ * http://www.opensource.org/licenses/bsd-license.php
+\ *
+\ * Contributors:
+\ * IBM Corporation - initial implementation
+\ ****************************************************************************/
+
+\ ( ioapic-addr -- )
+\ IO-APIC setup.
+
+CONSTANT ioapic
+
+: ioapic@ ( offset -- x ) ioapic rb! ioapic 10 + rl@-le ;
+: ioapic! ( x offset -- ) ioapic rb! ioapic 10 + rl!-le ;
+
+: init-ioapic ( irq# -- )
+ 1a000 or 1 ioapic@ 10 rshift 1+ 0 ?DO
+ 0 i 2* 11 + ioapic! dup
+ \ move all ISA IRQs to 40 and higher,
+ \ as to not conflict with U3/U4 internal
+ \ IRQs. ISA IRQs are positive edge.
+ dup ff and 0c < IF a000 - 40 + THEN
+ i 2* 10 + ioapic! 1+ LOOP drop
+;
+
+: dump-ioapic ( -- )
+ 1 ioapic@ 10 rshift 1+
+ dup cr . ." irqs" 0 ?DO
+ cr i 2 0.r space i 2* 11 + ioapic@ 8 0.r
+ i 2* 10 + ioapic@ 8 0.r LOOP
+;
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