games/ezquake: fix build on powerpc64

rdtsc is not available on powerpc64.
2020-11-27 18:30:58 +00:00
parent e544922040
commit 783c8fa4ca
1 changed files with 22 additions and 2 deletions
@@ -1,6 +1,26 @@
--- host.c.orig
+--- host.c.orig	2020-09-16 22:08:02 UTC
 +++ host.c
-@@ -351,7 +351,7 @@
+@@ -333,11 +333,19 @@ void SYSINFO_Init(void)
+ 	SYSINFO_processor_description = cpu_model;
+ 
+ 	gettimeofday(&old_tp, NULL);
+#ifdef __powerpc64__
+	__asm__ __volatile__("mfspr %%r3, 268": "=r" (old_tsc));
+#else
+ 	old_tsc = rdtsc();
+#endif
+ 	do {
+ 		gettimeofday(&tp, NULL);
+ 	} while ((tp.tv_sec - old_tp.tv_sec) * 1000000. + tp.tv_usec - old_tp.tv_usec < 1000000.);
+#ifdef __powerpc64__
+	__asm__ __volatile__("mfspr %%r3, 268": "=r" (tsc_freq));
+#else
+ 	tsc_freq = rdtsc();
+#endif
+ 	SYSINFO_MHz = (int)((tsc_freq - old_tsc) /
+ 						(tp.tv_sec - old_tp.tv_sec + (tp.tv_usec - old_tp.tv_usec) / 1000000.) /
+ 						1000000. + .5);
+@@ -351,7 +359,7 @@ void SYSINFO_Init(void)
 		SYSINFO_3D_description = Q_strdup(gl_renderer);
 	}