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| /* SPDX-License-Identifier: GPL-2.0 */
| /*
| * arch/sparc64/math-emu/sfp-util.h
| *
| * Copyright (C) 1999 Jakub Jelinek (jj@ultra.linux.cz)
| * Copyright (C) 1999 David S. Miller (davem@redhat.com)
| *
| */
|
| #include <linux/kernel.h>
| #include <linux/sched.h>
| #include <linux/types.h>
| #include <asm/byteorder.h>
|
| #define add_ssaaaa(sh, sl, ah, al, bh, bl) \
| __asm__ ("addcc %4,%5,%1\n\t" \
| "add %2,%3,%0\n\t" \
| "bcs,a,pn %%xcc, 1f\n\t" \
| "add %0, 1, %0\n" \
| "1:" \
| : "=r" (sh), \
| "=&r" (sl) \
| : "r" ((UDItype)(ah)), \
| "r" ((UDItype)(bh)), \
| "r" ((UDItype)(al)), \
| "r" ((UDItype)(bl)) \
| : "cc")
|
| #define sub_ddmmss(sh, sl, ah, al, bh, bl) \
| __asm__ ("subcc %4,%5,%1\n\t" \
| "sub %2,%3,%0\n\t" \
| "bcs,a,pn %%xcc, 1f\n\t" \
| "sub %0, 1, %0\n" \
| "1:" \
| : "=r" (sh), \
| "=&r" (sl) \
| : "r" ((UDItype)(ah)), \
| "r" ((UDItype)(bh)), \
| "r" ((UDItype)(al)), \
| "r" ((UDItype)(bl)) \
| : "cc")
|
| #define umul_ppmm(wh, wl, u, v) \
| do { \
| UDItype tmp1, tmp2, tmp3, tmp4; \
| __asm__ __volatile__ ( \
| "srl %7,0,%3\n\t" \
| "mulx %3,%6,%1\n\t" \
| "srlx %6,32,%2\n\t" \
| "mulx %2,%3,%4\n\t" \
| "sllx %4,32,%5\n\t" \
| "srl %6,0,%3\n\t" \
| "sub %1,%5,%5\n\t" \
| "srlx %5,32,%5\n\t" \
| "addcc %4,%5,%4\n\t" \
| "srlx %7,32,%5\n\t" \
| "mulx %3,%5,%3\n\t" \
| "mulx %2,%5,%5\n\t" \
| "sethi %%hi(0x80000000),%2\n\t" \
| "addcc %4,%3,%4\n\t" \
| "srlx %4,32,%4\n\t" \
| "add %2,%2,%2\n\t" \
| "movcc %%xcc,%%g0,%2\n\t" \
| "addcc %5,%4,%5\n\t" \
| "sllx %3,32,%3\n\t" \
| "add %1,%3,%1\n\t" \
| "add %5,%2,%0" \
| : "=r" (wh), \
| "=&r" (wl), \
| "=&r" (tmp1), "=&r" (tmp2), "=&r" (tmp3), "=&r" (tmp4) \
| : "r" ((UDItype)(u)), \
| "r" ((UDItype)(v)) \
| : "cc"); \
| } while (0)
|
| #define udiv_qrnnd(q, r, n1, n0, d) \
| do { \
| UWtype __d1, __d0, __q1, __q0, __r1, __r0, __m; \
| __d1 = (d >> 32); \
| __d0 = (USItype)d; \
| \
| __r1 = (n1) % __d1; \
| __q1 = (n1) / __d1; \
| __m = (UWtype) __q1 * __d0; \
| __r1 = (__r1 << 32) | (n0 >> 32); \
| if (__r1 < __m) \
| { \
| __q1--, __r1 += (d); \
| if (__r1 >= (d)) /* i.e. we didn't get carry when adding to __r1 */ \
| if (__r1 < __m) \
| __q1--, __r1 += (d); \
| } \
| __r1 -= __m; \
| \
| __r0 = __r1 % __d1; \
| __q0 = __r1 / __d1; \
| __m = (UWtype) __q0 * __d0; \
| __r0 = (__r0 << 32) | ((USItype)n0); \
| if (__r0 < __m) \
| { \
| __q0--, __r0 += (d); \
| if (__r0 >= (d)) \
| if (__r0 < __m) \
| __q0--, __r0 += (d); \
| } \
| __r0 -= __m; \
| \
| (q) = (UWtype) (__q1 << 32) | __q0; \
| (r) = __r0; \
| } while (0)
|
| #define UDIV_NEEDS_NORMALIZATION 1
|
| #define abort() \
| return 0
|
| #ifdef __BIG_ENDIAN
| #define __BYTE_ORDER __BIG_ENDIAN
| #else
| #define __BYTE_ORDER __LITTLE_ENDIAN
| #endif
|
|
