Miscellany
public text v1 · immutable#define TEST_AND_SET(x, v) \
({ \
bool x; \
asm volatile ( \
"swpb %1, %1, [%0] \n\t" \
: "=m"(x) : "m"(x), "r"(v) \
); \
x; \
})#define TEST_AND_SET(x, v) \
({ \
bool x; \
asm volatile ( \
"swpb %1, %1, [%0] \n\t" \
: "=m"(x) : "m"(x), "r"(v) \
); \
x; \
})