gbasys
view src/intr.h @ 12:a6ddf338a111
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| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Mon, 01 Feb 2016 04:41:27 +0200 |
| parents | 047c61960005 72c6429ae953 |
| children |
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1 /*
2 gbasys - a gameboy advance hardware abstraction library
3 Copyright (C) 2004-2014 John Tsiombikas <nuclear@member.fsf.org>
5 This program is free software: you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation, either version 3 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>.
17 */
18 #ifndef _INTR_H_
19 #define _INTR_H_
21 /* interrupts */
22 enum {
23 INTR_VBLANK,
24 INTR_HBLANK,
25 INTR_VCOUNT,
26 INTR_TIMER0,
27 INTR_TIMER1,
28 INTR_TIMER2,
29 INTR_TIMER3,
30 INTR_COMM,
31 INTR_DMA0,
32 INTR_DMA1,
33 INTR_DMA2,
34 INTR_DMA3,
35 INTR_KEY,
36 INTR_GPAK
37 };
39 #define REG_INTR_MASTER (*(unsigned short*)0x4000208)
40 #define REG_INTR_MASK (*(unsigned short*)0x4000200)
41 #define REG_INTR (*(unsigned short*)0x4000202)
43 void intr_init(void);
45 /* set/clear interrupts */
46 #define set_int() do {REG_INTR_MASTER = 1;} while(0)
47 #define clr_int() do {REG_INTR_MASTER = 0;} while(0)
49 /* set an interrupt handler */
50 void interrupt(int intr, void (*handler)(void));
52 /* mask/unmask an interrupt */
53 #define mask(intr) do {REG_INTR_MASK ^= 1 << (intr);} while(0)
54 #define unmask(intr) do {REG_INTR_MASK |= 1 << (intr);} while(0)
56 #endif /* _INTR_H_ */