From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- include/asm-m32r/div64.h | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 include/asm-m32r/div64.h (limited to 'include/asm-m32r/div64.h') diff --git a/include/asm-m32r/div64.h b/include/asm-m32r/div64.h new file mode 100644 index 000000000000..417a51bd552d --- /dev/null +++ b/include/asm-m32r/div64.h @@ -0,0 +1,38 @@ +#ifndef _ASM_M32R_DIV64 +#define _ASM_M32R_DIV64 + +/* $Id$ */ + +/* unsigned long long division. + * Input: + * unsigned long long n + * unsigned long base + * Output: + * n = n / base; + * return value = n % base; + */ +#define do_div(n, base) \ +({ \ + unsigned long _res, _high, _mid, _low; \ + \ + _low = (n) & 0xffffffffUL; \ + _high = (n) >> 32; \ + if (_high) { \ + _mid = (_high % (unsigned long)(base)) << 16; \ + _high = _high / (unsigned long)(base); \ + _mid += _low >> 16; \ + _low &= 0x0000ffffUL; \ + _low += (_mid % (unsigned long)(base)) << 16; \ + _mid = _mid / (unsigned long)(base); \ + _res = _low % (unsigned long)(base); \ + _low = _low / (unsigned long)(base); \ + n = _low + ((long long)_mid << 16) + \ + ((long long)_high << 32); \ + } else { \ + _res = _low % (unsigned long)(base); \ + n = (_low / (unsigned long)(base)); \ + } \ + _res; \ +}) + +#endif /* _ASM_M32R_DIV64 */ -- cgit v1.2.3