diff options
Diffstat (limited to 'db2/mutex/68020.gcc')
| -rw-r--r-- | db2/mutex/68020.gcc | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/db2/mutex/68020.gcc b/db2/mutex/68020.gcc new file mode 100644 index 0000000000..9d8be641d8 --- /dev/null +++ b/db2/mutex/68020.gcc @@ -0,0 +1,19 @@ +/* + * @(#)68020.gcc 10.1 (Sleepycat) 4/12/97 + * + * For gcc/68K, 0 is clear, 1 is set. + */ +#define TSL_SET(tsl) ({ \ + register tsl_t *__l = (tsl); \ + int __r; \ + asm volatile("tas %1; \n \ + seq %0" \ + : "=dm" (__r), "=m" (*__l) \ + : "1" (*__l) \ + ); \ + __r & 1; \ +}) + +#define TSL_UNSET(tsl) (*(tsl) = 0) +#define TSL_INIT(tsl) TSL_UNSET(tsl) + |