annotate src/intr.h @ 9:85f219fcdc82
merged
| author |
John Tsiombikas <nuclear@member.fsf.org> |
| date |
Sun, 22 Jun 2014 06:27:18 +0300 |
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047c61960005 72c6429ae953 |
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1 /*
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2 gbasys - a gameboy advance hardware abstraction library
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3 Copyright (C) 2004-2014 John Tsiombikas <nuclear@member.fsf.org>
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4
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5 This program is free software: you can redistribute it and/or modify
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6 it under the terms of the GNU General Public License as published by
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7 the Free Software Foundation, either version 3 of the License, or
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8 (at your option) any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU General Public License for more details.
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14
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15 You should have received a copy of the GNU General Public License
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16 along with this program. If not, see <http://www.gnu.org/licenses/>.
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17 */
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18 #ifndef _INTR_H_
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19 #define _INTR_H_
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20
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21 /* interrupts */
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22 enum {
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23 INTR_VBLANK,
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24 INTR_HBLANK,
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25 INTR_VCOUNT,
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26 INTR_TIMER0,
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27 INTR_TIMER1,
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28 INTR_TIMER2,
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29 INTR_TIMER3,
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30 INTR_COMM,
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31 INTR_DMA0,
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32 INTR_DMA1,
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33 INTR_DMA2,
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34 INTR_DMA3,
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35 INTR_KEY,
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36 INTR_GPAK
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37 };
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38
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39 #define REG_INTR_MASTER (*(unsigned short*)0x4000208)
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40 #define REG_INTR_MASK (*(unsigned short*)0x4000200)
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41 #define REG_INTR (*(unsigned short*)0x4000202)
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42
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43 void intr_init(void);
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44
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45 /* set/clear interrupts */
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46 #define set_int() do {REG_INTR_MASTER = 1;} while(0)
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47 #define clr_int() do {REG_INTR_MASTER = 0;} while(0)
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48
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49 /* set an interrupt handler */
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50 void interrupt(int intr, void (*handler)(void));
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51
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52 /* mask/unmask an interrupt */
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53 #define mask(intr) do {REG_INTR_MASK ^= 1 << (intr);} while(0)
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54 #define unmask(intr) do {REG_INTR_MASK |= 1 << (intr);} while(0)
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55
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56 #endif /* _INTR_H_ */
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