diff options
| author | Dave Kleikamp <shaggy@linux.vnet.ibm.com> | 2009-02-02 13:40:55 -0600 |
|---|---|---|
| committer | Dave Kleikamp <shaggy@linux.vnet.ibm.com> | 2009-02-02 13:40:55 -0600 |
| commit | 8db0c5d5ef3ab99fe9e5151872b75f45c4282e3c (patch) | |
| tree | da9759151e00221c58cdd9f4de893c0b08753670 /arch/m68k/include/asm/div64_mm.h | |
| parent | 1ad53a98c927a9b5b1b57288ac0edec562fbcf8d (diff) | |
| parent | 45c82b5a770be66845687a7d027c8b52946d59af (diff) | |
Merge branch 'master' of /home/shaggy/git/linus-clean/
Diffstat (limited to 'arch/m68k/include/asm/div64_mm.h')
| -rw-r--r-- | arch/m68k/include/asm/div64_mm.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/div64_mm.h b/arch/m68k/include/asm/div64_mm.h new file mode 100644 index 00000000000..8243c931b5c --- /dev/null +++ b/arch/m68k/include/asm/div64_mm.h @@ -0,0 +1,28 @@ +#ifndef _M68K_DIV64_H +#define _M68K_DIV64_H + +#include <linux/types.h> + +/* n = n / base; return rem; */ + +#define do_div(n, base) ({ \ + union { \ + unsigned long n32[2]; \ + unsigned long long n64; \ + } __n; \ + unsigned long __rem, __upper; \ + \ + __n.n64 = (n); \ + if ((__upper = __n.n32[0])) { \ + asm ("divul.l %2,%1:%0" \ + : "=d" (__n.n32[0]), "=d" (__upper) \ + : "d" (base), "0" (__n.n32[0])); \ + } \ + asm ("divu.l %2,%1:%0" \ + : "=d" (__n.n32[1]), "=d" (__rem) \ + : "d" (base), "1" (__upper), "0" (__n.n32[1])); \ + (n) = __n.n64; \ + __rem; \ +}) + +#endif /* _M68K_DIV64_H */ |