gbasys
view src/intr.h @ 7:72c6429ae953
changed all the copyright headers and added a README
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Fri, 18 Apr 2014 02:04:46 +0300 |
| parents | e3dc7705ad9c |
| children | 85f219fcdc82 |
line source
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 extern unsigned short *reg_int_master;
40 extern unsigned short *reg_int_mask;
42 void intr_init(void);
44 /* set/clear interrupts */
45 #define set_int() do {*reg_int_master = 1;} while(0)
46 #define clr_int() do {*reg_int_master = 0;} while(0)
48 /* set an interrupt handler */
49 void interrupt(int intr, void (*handler)(void));
51 /* mask/unmask an interrupt */
52 #define mask(intr) do {*reg_int_mask ^= 1 << (intr);} while(0)
53 #define unmask(intr) do {*reg_int_mask |= 1 << (intr);} while(0)
55 #endif /* _INTR_H_ */