diff options
Diffstat (limited to 'kernel/arch/sparc/lib/ashldi3.S')
| -rw-r--r-- | kernel/arch/sparc/lib/ashldi3.S | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/kernel/arch/sparc/lib/ashldi3.S b/kernel/arch/sparc/lib/ashldi3.S new file mode 100644 index 000000000..86f60de07 --- /dev/null +++ b/kernel/arch/sparc/lib/ashldi3.S @@ -0,0 +1,35 @@ +/* + * ashldi3.S: GCC emits these for certain drivers playing + * with long longs. + * + * Copyright (C) 1999 David S. Miller (davem@redhat.com) + */ + +#include <linux/linkage.h> + + .text +ENTRY(__ashldi3) + cmp %o2, 0 + be 9f + mov 0x20, %g2 + + sub %g2, %o2, %g2 + cmp %g2, 0 + bg 7f + sll %o0, %o2, %g3 + + neg %g2 + clr %o5 + b 8f + sll %o1, %g2, %o4 +7: + srl %o1, %g2, %g2 + sll %o1, %o2, %o5 + or %g3, %g2, %o4 +8: + mov %o4, %o0 + mov %o5, %o1 +9: + retl + nop +ENDPROC(__ashldi3) |