1 files changed, 141 insertions, 0 deletions
diff --git a/target-mips/op_helper_mem.c b/target-mips/op_helper_mem.c
new file mode 100644
index 0000000..4711f7a
--- /dev/null
+++ b/target-mips/op_helper_mem.c
@@ -0,0 +1,141 @@
+#ifdef TARGET_WORDS_BIGENDIAN
+#define GET_LMASK(v) ((v) & 3)
+#else
+#define GET_LMASK(v) (((v) & 3) ^ 3)
+#endif
+
+void glue(do_lwl, MEMSUFFIX) (uint32_t tmp)
+{
+#if defined (DEBUG_OP)
+    target_ulong sav = T0;
+#endif
+
+    /* XXX: this is valid only in big-endian mode
+     *      should be reverted for little-endian...
+     */
+    switch (GET_LMASK(T0)) {
+    case 0:
+        T0 = tmp;
+        break;
+    case 1:
+        T0 = (tmp << 8) | (T1 & 0x000000FF);
+        break;
+    case 2:
+        T0 = (tmp << 16) | (T1 & 0x0000FFFF);
+        break;
+    case 3:
+        T0 = (tmp << 24) | (T1 & 0x00FFFFFF);
+        break;
+    }
+#if defined (DEBUG_OP)
+    if (logfile) {
+        fprintf(logfile, "%s: %08x - %08x %08x => %08x\n",
+                __func__, sav, tmp, T1, T0);
+    }
+#endif
+    RETURN();
+}
+
+void glue(do_lwr, MEMSUFFIX) (uint32_t tmp)
+{
+#if defined (DEBUG_OP)
+    target_ulong sav = T0;
+#endif
+
+    /* XXX: this is valid only in big-endian mode
+     *      should be reverted for little-endian...
+     */
+    switch (GET_LMASK(T0)) {
+    case 0:
+        T0 = (tmp >> 24) | (T1 & 0xFFFFFF00);
+        break;
+    case 1:
+        T0 = (tmp >> 16) | (T1 & 0xFFFF0000);
+        break;
+    case 2:
+        T0 = (tmp >> 8) | (T1 & 0xFF000000);
+        break;
+    case 3:
+        T0 = tmp;
+        break;
+    }
+#if defined (DEBUG_OP)
+    if (logfile) {
+        fprintf(logfile, "%s: %08x - %08x %08x => %08x\n",
+                __func__, sav, tmp, T1, T0);
+    }
+#endif
+    RETURN();
+}
+
+uint32_t glue(do_swl, MEMSUFFIX) (uint32_t tmp)
+{
+#if defined (DEBUG_OP)
+    target_ulong sav;
+#endif
+
+#if defined (DEBUG_OP)
+    sav = tmp;
+#endif
+    /* XXX: this is valid only in big-endian mode
+     *      should be reverted for little-endian...
+     */
+    switch (GET_LMASK(T0)) {
+    case 0:
+        tmp = T1;
+        break;
+    case 1:
+        tmp = (tmp & 0xFF000000) | (T1 >> 8);
+        break;
+    case 2:
+        tmp = (tmp & 0xFFFF0000) | (T1 >> 16);
+        break;
+    case 3:
+        tmp = (tmp & 0xFFFFFF00) | (T1 >> 24);
+        break;
+    }
+#if defined (DEBUG_OP)
+    if (logfile) {
+        fprintf(logfile, "%s: %08x - %08x %08x => %08x\n",
+                __func__, T0, sav, T1, tmp);
+    }
+#endif
+    RETURN();
+    return tmp;
+}
+
+uint32_t glue(do_swr, MEMSUFFIX) (uint32_t tmp)
+{
+#if defined (DEBUG_OP)
+    target_ulong sav;
+#endif
+
+#if defined (DEBUG_OP)
+    sav = tmp;
+#endif
+    /* XXX: this is valid only in big-endian mode
+     *      should be reverted for little-endian...
+     */
+    switch (GET_LMASK(T0)) {
+    case 0:
+        tmp = (tmp & 0x00FFFFFF) | (T1 << 24);
+        break;
+    case 1:
+        tmp = (tmp & 0x0000FFFF) | (T1 << 16);
+        break;
+    case 2:
+        tmp = (tmp & 0x000000FF) | (T1 << 8);
+        break;
+    case 3:
+        tmp = T1;
+        break;
+    }
+#if defined (DEBUG_OP)
+    if (logfile) {
+        fprintf(logfile, "%s: %08x - %08x %08x => %08x\n",
+                __func__, T0, sav, T1, tmp);
+    }
+#endif
+    RETURN();
+    return tmp;
+}