summary refs log tree commit diff stats
path: root/host-utils.c
diff options
context:
space:
mode:
Diffstat (limited to 'host-utils.c')
-rw-r--r--host-utils.c105
1 files changed, 0 insertions, 105 deletions
diff --git a/host-utils.c b/host-utils.c
deleted file mode 100644
index 5e3915abba..0000000000
--- a/host-utils.c
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * Utility compute operations used by translated code.
- *
- * Copyright (c) 2003 Fabrice Bellard
- * Copyright (c) 2007 Aurelien Jarno
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- */
-
-#include <stdlib.h>
-#include <stdint.h>
-#include "qemu/host-utils.h"
-
-//#define DEBUG_MULDIV
-
-/* Long integer helpers */
-#if !defined(__x86_64__)
-static void add128 (uint64_t *plow, uint64_t *phigh, uint64_t a, uint64_t b)
-{
-    *plow += a;
-    /* carry test */
-    if (*plow < a)
-        (*phigh)++;
-    *phigh += b;
-}
-
-static void neg128 (uint64_t *plow, uint64_t *phigh)
-{
-    *plow = ~*plow;
-    *phigh = ~*phigh;
-    add128(plow, phigh, 1, 0);
-}
-
-static void mul64 (uint64_t *plow, uint64_t *phigh, uint64_t a, uint64_t b)
-{
-    uint32_t a0, a1, b0, b1;
-    uint64_t v;
-
-    a0 = a;
-    a1 = a >> 32;
-
-    b0 = b;
-    b1 = b >> 32;
-
-    v = (uint64_t)a0 * (uint64_t)b0;
-    *plow = v;
-    *phigh = 0;
-
-    v = (uint64_t)a0 * (uint64_t)b1;
-    add128(plow, phigh, v << 32, v >> 32);
-
-    v = (uint64_t)a1 * (uint64_t)b0;
-    add128(plow, phigh, v << 32, v >> 32);
-
-    v = (uint64_t)a1 * (uint64_t)b1;
-    *phigh += v;
-}
-
-/* Unsigned 64x64 -> 128 multiplication */
-void mulu64 (uint64_t *plow, uint64_t *phigh, uint64_t a, uint64_t b)
-{
-    mul64(plow, phigh, a, b);
-#if defined(DEBUG_MULDIV)
-    printf("mulu64: 0x%016llx * 0x%016llx = 0x%016llx%016llx\n",
-           a, b, *phigh, *plow);
-#endif
-}
-
-/* Signed 64x64 -> 128 multiplication */
-void muls64 (uint64_t *plow, uint64_t *phigh, int64_t a, int64_t b)
-{
-    int sa, sb;
-
-    sa = (a < 0);
-    if (sa)
-        a = -a;
-    sb = (b < 0);
-    if (sb)
-        b = -b;
-    mul64(plow, phigh, a, b);
-    if (sa ^ sb) {
-        neg128(plow, phigh);
-    }
-#if defined(DEBUG_MULDIV)
-    printf("muls64: 0x%016llx * 0x%016llx = 0x%016llx%016llx\n",
-           a, b, *phigh, *plow);
-#endif
-}
-#endif /* !defined(__x86_64__) */