1.3.5
00001 #include "config.h" 00002 #include <atomic.h> 00003 00004 #ifdef CONF_ATOMIC 00005 00012 void atomic_inc(atomic_t* counter); 00013 __asm__("\n\ 00014 .text\n\ 00015 .globl _atomic_inc\n\ 00016 _atomic_inc:\n\ 00017 stc ccr, r1h ; save flags\n\ 00018 orc #0x80, ccr ; disable all but NMI\n\ 00019 mov.b @r0, r1l\n\ 00020 inc r1l\n\ 00021 mov.b r1l, @r0\n\ 00022 ldc r1h, ccr ; restore flags\n\ 00023 rts\n\ 00024 "); 00025 00033 void atomic_dec(atomic_t* counter); 00034 __asm__("\n\ 00035 .text\n\ 00036 .globl _atomic_dec\n\ 00037 _atomic_dec:\n\ 00038 stc ccr, r1h\n\ 00039 orc #0x80, ccr\n\ 00040 mov.b @r0, r1l\n\ 00041 dec r1l\n\ 00042 mov.b r1l, @r0\n\ 00043 ldc r1h, ccr\n\ 00044 rts\n\ 00045 "); 00046 #endif
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Original code copyright 1998-2002 by the authors. |
1.3.5