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Streamlined clock rate handling.

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* Docs say that CLK_TCK is an obsolete alias of CLOCKS_PER_SEC so there's no point in individual definitions.
* All targets determining the clock rate at runtime can use a common handling.
This commit is contained in:
Oliver Schmidt
2020-10-25 14:06:44 +01:00
parent 07cc6a3d20
commit f723147f04
4 changed files with 24 additions and 45 deletions
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include/time.h
+14 -32
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@@ -83,46 +83,31 @@ extern struct _timezone {
#if defined(__ATARI__)
/* The clock depends on the video standard, so read it at runtime */
unsigned _clocks_per_sec (void);
# define CLK_TCK _clocks_per_sec()
# define CLOCKS_PER_SEC _clocks_per_sec()
#elif defined(__ATARI5200__)
# define CLK_TCK 60 /* POSIX */
# define CLOCKS_PER_SEC 60 /* ANSI */
#if defined(__ATARI5200__)
# define CLOCKS_PER_SEC 60
#elif defined(__ATMOS__)
# define CLK_TCK 100 /* POSIX */
# define CLOCKS_PER_SEC 100 /* ANSI */
# define CLOCKS_PER_SEC 100
#elif defined(__CBM__)
# if defined(__CBM510__) || defined(__CBM610__)
/* The 510/610 gets its clock from the AC current */
# define CLK_TCK 50 /* POSIX */
# define CLOCKS_PER_SEC 50 /* ANSI */
# define CLOCKS_PER_SEC 50
# else
# define CLK_TCK 60 /* POSIX */
# define CLOCKS_PER_SEC 60 /* ANSI */
# define CLOCKS_PER_SEC 60
# endif
#elif defined(__NES__)
# define CLK_TCK 50 /* POSIX */
# define CLOCKS_PER_SEC 50 /* ANSI */
# define CLOCKS_PER_SEC 50
#elif defined(__PCE__)
# define CLK_TCK 60 /* POSIX */
# define CLOCKS_PER_SEC 60 /* ANSI */
# define CLOCKS_PER_SEC 60
#elif defined(__GAMATE__)
# define CLK_TCK 135 /* POSIX */ /* FIXME */
# define CLOCKS_PER_SEC 135 /* ANSI */ /* FIXME */
# define CLOCKS_PER_SEC 135 /* FIXME */
#elif defined(__GEOS__)
# define CLK_TCK 1 /* POSIX */
# define CLOCKS_PER_SEC 1 /* ANSI */
#elif defined(__LYNX__)
/* The clock-rate depends on the video scan-rate;
** so, read it at run-time.
*/
extern clock_t _clk_tck (void);
# define CLK_TCK _clk_tck()
# define CLOCKS_PER_SEC _clk_tck()
# define CLOCKS_PER_SEC 1
#else
/* Read the clock rate at runtime */
clock_t _clocks_per_sec (void);
# define CLOCKS_PER_SEC _clocks_per_sec()
#endif
#define CLK_TCK CLOCKS_PER_SEC
#define CLOCK_REALTIME 0
@@ -149,6 +134,3 @@ int __fastcall__ clock_settime (clockid_t clock_id, const struct timespec *tp);
/* End of time.h */
#endif