mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-01-31 03:27:39 +00:00
7e0a09feec
This change ports APE Loader to Linux AARCH64, so that Raspberry Pi users can run programs like redbean, without the executable needing to modify itself. Progress has also slipped into this change on the issue of making progress better conforming to user expectations and industry standards regarding which symbols we're allowed to declare
37 lines
1.2 KiB
C
37 lines
1.2 KiB
C
/* clang-format off */
|
|
/* ===-- modti3.c - Implement __modti3 -------------------------------------===
|
|
*
|
|
* The LLVM Compiler Infrastructure
|
|
*
|
|
* This file is dual licensed under the MIT and the University of Illinois Open
|
|
* Source Licenses. See LICENSE.TXT for details.
|
|
*
|
|
* ===----------------------------------------------------------------------===
|
|
*
|
|
* This file implements __modti3 for the compiler_rt library.
|
|
*
|
|
* ===----------------------------------------------------------------------===
|
|
*/
|
|
|
|
__static_yoink("huge_compiler_rt_license");
|
|
|
|
#include "third_party/compiler_rt/int_lib.h"
|
|
|
|
#ifdef CRT_HAS_128BIT
|
|
|
|
/*Returns: a % b */
|
|
|
|
COMPILER_RT_ABI ti_int
|
|
__modti3(ti_int a, ti_int b)
|
|
{
|
|
const int bits_in_tword_m1 = (int)(sizeof(ti_int) * CHAR_BIT) - 1;
|
|
ti_int s = b >> bits_in_tword_m1; /* s = b < 0 ? -1 : 0 */
|
|
b = (b ^ s) - s; /* negate if s == -1 */
|
|
s = a >> bits_in_tword_m1; /* s = a < 0 ? -1 : 0 */
|
|
a = (a ^ s) - s; /* negate if s == -1 */
|
|
tu_int r;
|
|
__udivmodti4(a, b, &r);
|
|
return ((ti_int)r ^ s) - s; /* negate if s == -1 */
|
|
}
|
|
|
|
#endif /* CRT_HAS_128BIT */
|