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Annotation of uae/src/md-ppc-gcc/support.c, revision 1.1.1.5

1.1.1.4   root        1:  /*
1.1       root        2:   * UAE - The Un*x Amiga Emulator
1.1.1.4   root        3:   *
1.1       root        4:   * Miscellaneous machine dependent support functions and definitions
                      5:   *
                      6:   * Copyright 1996 Bernd Schmidt
                      7:   */
                      8: 
                      9: #include "sysconfig.h"
                     10: #include "sysdeps.h"
                     11: 
                     12: #include "options.h"
                     13: #include "events.h"
                     14: #include "machdep/m68k.h"
                     15: 
                     16: struct flag_struct regflags;
                     17: 
                     18: static volatile frame_time_t last_time, best_time;
                     19: static volatile int loops_to_go;
                     20: 
                     21: void machdep_init (void)
                     22: {
                     23:     rpt_available = 1;
1.1.1.3   root       24:     write_log ("Calibrating delay loop.. ");
1.1       root       25:     fflush(stderr);
                     26:     loops_to_go = 5;
                     27: 
                     28:     sync();
                     29:     last_time = read_processor_time();
                     30:     usleep(loops_to_go * 1000000);
                     31:     best_time = read_processor_time()-last_time;
                     32:     sync();
                     33: 
                     34:     vsynctime = best_time / (50*loops_to_go);
1.1.1.3   root       35:     write_log("ok - %d\n",best_time/loops_to_go);
1.1       root       36:     last_time = read_processor_time();
                     37:     best_time = read_processor_time()-last_time;
                     38: }
                     39: 
                     40: 

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