gbasys
diff src/intr.h @ 0:875ef6085efc
gbasys mercurial repository
author | John Tsiombikas <nuclear@member.fsf.org> |
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date | Sun, 04 Mar 2012 04:04:25 +0200 |
parents | |
children | e3dc7705ad9c |
line diff
1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 1.2 +++ b/src/intr.h Sun Mar 04 04:04:25 2012 +0200 1.3 @@ -0,0 +1,58 @@ 1.4 +/* 1.5 +Copyright 2004 John Tsiombikas <nuclear@siggraph.org> 1.6 + 1.7 +This file is part of libgba, a library for GameBoy Advance development. 1.8 + 1.9 +This program is free software; you can redistribute it and/or modify 1.10 +it under the terms of the GNU General Public License as published by 1.11 +the Free Software Foundation; either version 2 of the License, or 1.12 +(at your option) any later version. 1.13 + 1.14 +This program is distributed in the hope that it will be useful, 1.15 +but WITHOUT ANY WARRANTY; without even the implied warranty of 1.16 +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1.17 +GNU General Public License for more details. 1.18 + 1.19 +You should have received a copy of the GNU General Public License 1.20 +along with this program; if not, write to the Free Software 1.21 +Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 1.22 +*/ 1.23 + 1.24 +#ifndef _INTR_H_ 1.25 +#define _INTR_H_ 1.26 + 1.27 +/* interrupts */ 1.28 +enum { 1.29 + INTR_VBLANK, 1.30 + INTR_HBLANK, 1.31 + INTR_VCOUNT, 1.32 + INTR_TIMER0, 1.33 + INTR_TIMER1, 1.34 + INTR_TIMER2, 1.35 + INTR_TIMER3, 1.36 + INTR_COMM, 1.37 + INTR_DMA0, 1.38 + INTR_DMA1, 1.39 + INTR_DMA2, 1.40 + INTR_DMA3, 1.41 + INTR_KEY, 1.42 + INTR_GPAK 1.43 +}; 1.44 + 1.45 +extern unsigned short *reg_int_master; 1.46 +extern unsigned short *reg_int_mask; 1.47 + 1.48 +void intr_init(void); 1.49 + 1.50 +/* set/clear interrupts */ 1.51 +#define set_int() do {*reg_int_master = 1;} while(0) 1.52 +#define clr_int() do {*reg_int_master = 0;} while(0) 1.53 + 1.54 +/* set an interrupt handler */ 1.55 +void interrupt(int intr, void (*handler)(void)); 1.56 + 1.57 +/* mask/unmask an interrupt */ 1.58 +#define mask(intr) do {*reg_int_mask ^= 1 << (intr);} while(0) 1.59 +#define unmask(intr) do {*reg_int_mask |= 1 << (intr);} while(0) 1.60 + 1.61 +#endif /* _INTR_H_ */