target/s390x: Update do_unaligned_access() comment

[mirror_qemu.git] / target / s390x / tcg / vec_int_helper.c

diff --git a/target/s390x/tcg/vec_int_helper.c b/target/s390x/tcg/vec_int_helper.c
index 5561b3ed9096d6131424b598da3f2dea3e3b7671..53ab5c5eb31be73ceade1d6d1bcb6597d6a165c4 100644 (file)
--- a/target/s390x/tcg/vec_int_helper.c
+++ b/target/s390x/tcg/vec_int_helper.c
@@ -10,7 +10,6 @@
  * See the COPYING file in the top-level directory.
  */
 #include "qemu/osdep.h"
-#include "qemu-common.h"
 #include "cpu.h"
 #include "vec.h"
 #include "exec/helper-proto.h"
@@ -540,18 +539,73 @@ void HELPER(gvec_vsl)(void *v1, const void *v2, uint64_t count,
     s390_vec_shl(v1, v2, count);
 }
 
+void HELPER(gvec_vsl_ve2)(void *v1, const void *v2, const void *v3,
+                          uint32_t desc)
+{
+    S390Vector tmp;
+    uint32_t sh, e0, e1 = 0;
+    int i;
+
+    for (i = 15; i >= 0; --i, e1 = e0) {
+        e0 = s390_vec_read_element8(v2, i);
+        sh = s390_vec_read_element8(v3, i) & 7;
+
+        s390_vec_write_element8(&tmp, i, rol32(e0 | (e1 << 24), sh));
+    }
+
+    *(S390Vector *)v1 = tmp;
+}
+
 void HELPER(gvec_vsra)(void *v1, const void *v2, uint64_t count,
                        uint32_t desc)
 {
     s390_vec_sar(v1, v2, count);
 }
 
+void HELPER(gvec_vsra_ve2)(void *v1, const void *v2, const void *v3,
+                           uint32_t desc)
+{
+    S390Vector tmp;
+    uint32_t sh, e0, e1 = 0;
+    int i = 0;
+
+    /* Byte 0 is special only. */
+    e0 = (int32_t)(int8_t)s390_vec_read_element8(v2, i);
+    sh = s390_vec_read_element8(v3, i) & 7;
+    s390_vec_write_element8(&tmp, i, e0 >> sh);
+
+    e1 = e0;
+    for (i = 1; i < 16; ++i, e1 = e0) {
+        e0 = s390_vec_read_element8(v2, i);
+        sh = s390_vec_read_element8(v3, i) & 7;
+        s390_vec_write_element8(&tmp, i, (e0 | e1 << 8) >> sh);
+    }
+
+    *(S390Vector *)v1 = tmp;
+}
+
 void HELPER(gvec_vsrl)(void *v1, const void *v2, uint64_t count,
                        uint32_t desc)
 {
     s390_vec_shr(v1, v2, count);
 }
 
+void HELPER(gvec_vsrl_ve2)(void *v1, const void *v2, const void *v3,
+                           uint32_t desc)
+{
+    S390Vector tmp;
+    uint32_t sh, e0, e1 = 0;
+
+    for (int i = 0; i < 16; ++i, e1 = e0) {
+        e0 = s390_vec_read_element8(v2, i);
+        sh = s390_vec_read_element8(v3, i) & 7;
+
+        s390_vec_write_element8(&tmp, i, (e0 | (e1 << 8)) >> sh);
+    }
+
+    *(S390Vector *)v1 = tmp;
+}
+
 #define DEF_VSCBI(BITS)                                                        \
 void HELPER(gvec_vscbi##BITS)(void *v1, const void *v2, const void *v3,        \
                               uint32_t desc)                                   \