gbasys

annotate src/intr.h @ 8:047c61960005

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- added bg2 matrix support - changed some stupid const pointers to register addresses to hardcoded compile-time defines
author John Tsiombikas <nuclear@member.fsf.org>
date Sun, 22 Jun 2014 06:26:11 +0300
parents e3dc7705ad9c
children 85f219fcdc82
rev   line source
nuclear@0 1 /*
nuclear@2 2 Copyright 2004-2012 John Tsiombikas <nuclear@member.fsf.org>
nuclear@0 3
nuclear@2 4 This file is part of gbasys, a library for GameBoy Advance development.
nuclear@0 5
nuclear@0 6 This program is free software; you can redistribute it and/or modify
nuclear@0 7 it under the terms of the GNU General Public License as published by
nuclear@0 8 the Free Software Foundation; either version 2 of the License, or
nuclear@0 9 (at your option) any later version.
nuclear@0 10
nuclear@0 11 This program is distributed in the hope that it will be useful,
nuclear@0 12 but WITHOUT ANY WARRANTY; without even the implied warranty of
nuclear@0 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
nuclear@0 14 GNU General Public License for more details.
nuclear@0 15
nuclear@0 16 You should have received a copy of the GNU General Public License
nuclear@0 17 along with this program; if not, write to the Free Software
nuclear@0 18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
nuclear@0 19 */
nuclear@0 20
nuclear@0 21 #ifndef _INTR_H_
nuclear@0 22 #define _INTR_H_
nuclear@0 23
nuclear@0 24 /* interrupts */
nuclear@0 25 enum {
nuclear@0 26 INTR_VBLANK,
nuclear@0 27 INTR_HBLANK,
nuclear@0 28 INTR_VCOUNT,
nuclear@0 29 INTR_TIMER0,
nuclear@0 30 INTR_TIMER1,
nuclear@0 31 INTR_TIMER2,
nuclear@0 32 INTR_TIMER3,
nuclear@0 33 INTR_COMM,
nuclear@0 34 INTR_DMA0,
nuclear@0 35 INTR_DMA1,
nuclear@0 36 INTR_DMA2,
nuclear@0 37 INTR_DMA3,
nuclear@0 38 INTR_KEY,
nuclear@0 39 INTR_GPAK
nuclear@0 40 };
nuclear@0 41
nuclear@8 42 #define REG_INTR_MASTER (*(unsigned short*)0x4000208)
nuclear@8 43 #define REG_INTR_MASK (*(unsigned short*)0x4000200)
nuclear@8 44 #define REG_INTR (*(unsigned short*)0x4000202)
nuclear@0 45
nuclear@0 46 void intr_init(void);
nuclear@0 47
nuclear@0 48 /* set/clear interrupts */
nuclear@8 49 #define set_int() do {REG_INTR_MASTER = 1;} while(0)
nuclear@8 50 #define clr_int() do {REG_INTR_MASTER = 0;} while(0)
nuclear@0 51
nuclear@0 52 /* set an interrupt handler */
nuclear@0 53 void interrupt(int intr, void (*handler)(void));
nuclear@0 54
nuclear@0 55 /* mask/unmask an interrupt */
nuclear@8 56 #define mask(intr) do {REG_INTR_MASK ^= 1 << (intr);} while(0)
nuclear@8 57 #define unmask(intr) do {REG_INTR_MASK |= 1 << (intr);} while(0)
nuclear@0 58
nuclear@0 59 #endif /* _INTR_H_ */