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authorSteve Kondik <shade@chemlab.org>2012-11-18 15:47:18 -0800
committerSteve Kondik <shade@chemlab.org>2012-11-18 15:47:18 -0800
commita546c7006355a7bd1df4267ee53d0bfa2c017c8c (patch)
tree01be0bf6c0d6968e1468ec9661fd52110f9b05a7 /distrib/sdl-1.2.15/src/timer/nds/SDL_systimer.c
parentbaf3d7830396202df5cc47bd7bcee109c319cdb3 (diff)
parent0f809250987b64f491bd3b4b73c0f0d33036a786 (diff)
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Merge branch 'jb-mr1-release' of https://android.googlesource.com/platform/external/qemu into mr1-staging
Change-Id: I8a4a71ac65b08e6e17f26c942f67a15b85211115
Diffstat (limited to 'distrib/sdl-1.2.15/src/timer/nds/SDL_systimer.c')
-rw-r--r--distrib/sdl-1.2.15/src/timer/nds/SDL_systimer.c73
1 files changed, 73 insertions, 0 deletions
diff --git a/distrib/sdl-1.2.15/src/timer/nds/SDL_systimer.c b/distrib/sdl-1.2.15/src/timer/nds/SDL_systimer.c
new file mode 100644
index 0000000..bf54f42
--- /dev/null
+++ b/distrib/sdl-1.2.15/src/timer/nds/SDL_systimer.c
@@ -0,0 +1,73 @@
+/*
+ SDL - Simple DirectMedia Layer
+ Copyright (C) 1997-2012 Sam Lantinga
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+
+ Sam Lantinga
+ slouken@libsdl.org
+*/
+#include "SDL_config.h"
+
+#include "SDL_thread.h"
+#include "SDL_timer.h"
+#include "SDL_error.h"
+#include "../SDL_timer_c.h"
+
+#include <nds.h>
+
+#define timers2ms(tlow,thigh)(tlow | (thigh<<16)) >> 5
+
+
+void SDL_StartTicks(void)
+{
+ TIMER0_DATA=0;
+ TIMER1_DATA=0;
+ TIMER0_CR=TIMER_ENABLE|TIMER_DIV_1024;
+ TIMER1_CR=TIMER_ENABLE|TIMER_CASCADE;
+}
+
+Uint32 SDL_GetTicks(void)
+{
+ return timers2ms(TIMER0_DATA, TIMER1_DATA);
+}
+
+void SDL_Delay(Uint32 ms)
+{
+ Uint32 now;
+ now=timers2ms(TIMER0_DATA, TIMER1_DATA);
+ while((Uint32)timers2ms(TIMER0_DATA, TIMER1_DATA)<now+ms);
+
+}
+
+/* This is only called if the event thread is not running */
+int SDL_SYS_TimerInit(void)
+{
+ return 0;
+}
+
+void SDL_SYS_TimerQuit(void)
+{
+}
+
+int SDL_SYS_StartTimer(void)
+{
+ SDL_SetError("Timers not implemented on NDS");
+ return -1;
+}
+
+void SDL_SYS_StopTimer(void)
+{
+}