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-s390/div64.h | 49 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) create mode 100644 include/asm-s390/div64.h (limited to 'include/asm-s390/div64.h') diff --git a/include/asm-s390/div64.h b/include/asm-s390/div64.h new file mode 100644 index 00000000000..af098dc3cf5 --- /dev/null +++ b/include/asm-s390/div64.h @@ -0,0 +1,49 @@ +#ifndef __S390_DIV64 +#define __S390_DIV64 + +#ifndef __s390x__ + +/* for do_div "base" needs to be smaller than 2^31-1 */ +#define do_div(n, base) ({ \ + unsigned long long __n = (n); \ + unsigned long __r; \ + \ + asm (" slr 0,0\n" \ + " l 1,%1\n" \ + " srdl 0,1\n" \ + " dr 0,%2\n" \ + " alr 1,1\n" \ + " alr 0,0\n" \ + " lhi 2,1\n" \ + " n 2,%1\n" \ + " alr 0,2\n" \ + " clr 0,%2\n" \ + " jl 0f\n" \ + " slr 0,%2\n" \ + " ahi 1,1\n" \ + "0: st 1,%1\n" \ + " l 1,4+%1\n" \ + " srdl 0,1\n" \ + " dr 0,%2\n" \ + " alr 1,1\n" \ + " alr 0,0\n" \ + " lhi 2,1\n" \ + " n 2,4+%1\n" \ + " alr 0,2\n" \ + " clr 0,%2\n" \ + " jl 1f\n" \ + " slr 0,%2\n" \ + " ahi 1,1\n" \ + "1: st 1,4+%1\n" \ + " lr %0,0" \ + : "=d" (__r), "=m" (__n) \ + : "d" (base), "m" (__n) : "0", "1", "2", "cc" ); \ + (n) = (__n); \ + __r; \ +}) + +#else /* __s390x__ */ +#include +#endif /* __s390x__ */ + +#endif -- cgit v1.2.3-70-g09d2