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(*
$Id$
------------------------------------------------------------------------------
Header file for libgba interrupt handling
Copyright 2003-2006 by Dave Murphy.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
Please report all bugs and problems through the bug tracker at
"http://sourceforge.net/tracker/?group_id=114505&atid=668551".
------------------------------------------------------------------------------
Conversion by Legolas (http://itaprogaming.free.fr) for freepascal compiler
(http://www.freepascal.org)
Copyright (C) 2006 Francesco Lombardi
Check http://sourceforge.net/projects/libndsfpc for updates
------------------------------------------------------------------------------
$Log$
*)
{$ifdef GBA_INTERFACE}
type
IntFn = procedure;
TVoidFunctionPointer = procedure of object;
IntTable = record
handler: IntFn;
mask: u32;
end;
PIntTable = ^IntTable;
const
MAX_INTS = 15;
// INT_VECTOR : IntFn = pointer($03007ffc); // BIOS Interrupt vector
var
INT_VECTOR : IntFn absolute $03007ffc; // BIOS Interrupt vector
REG_IME : pu16 = pointer(REG_BASE + $208); // Interrupt Master Enable
REG_IE : pu16 = pointer(REG_BASE + $200); // Interrupt Enable
REG_IF : pu16 = pointer(REG_BASE + $202); // Interrupt Request
type
irqMASKS = integer;
irqMASK = irqMASKS;
const
IRQ_VBLANK: irqMASK = (1 shl 0);
IRQ_HBLANK: irqMASK = (1 shl 1);
IRQ_VCOUNT: irqMASK = (1 shl 2);
IRQ_TIMER0: irqMASK = (1 shl 3);
IRQ_TIMER1: irqMASK = (1 shl 4);
IRQ_TIMER2: irqMASK = (1 shl 5);
IRQ_TIMER3: irqMASK = (1 shl 6);
IRQ_SERIAL: irqMASK = (1 shl 7);
IRQ_DMA0: irqMASK = (1 shl 8);
IRQ_DMA1: irqMASK = (1 shl 9);
IRQ_DMA2: irqMASK = (1 shl 10);
IRQ_DMA3: irqMASK = (1 shl 11);
IRQ_KEYPAD: irqMASK = (1 shl 12);
IRQ_GAMEPAK: irqMASK = (1 shl 13);
var
IntrTable: array [0..MAX_INTS-1] of IntTable; cvar; // cvar used in order to gain access from assembly unit
procedure irqInit(); cdecl; external;
procedure irqSet(mask: irqMASK; func: TVoidFunctionPointer); cdecl; external;
procedure irqSet(mask: irqMASK; func: pointer); cdecl; external;
procedure irqEnable(mask: cint); cdecl; external;
procedure irqDisable(mask: cint); cdecl; external;
procedure IntrMain(); cdecl; external;
{$endif GBA_INTERFACE}
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