[Qemu-ppc] [PATCH RFC v0 3/6] target-ppc: add vcmpnez[b, h, w][.] instructions

[Nikunj A Dadhania]

From: Swapnil Bokade <address@hidden>

Adds following instructions:

vcmpnezb[.]: Vector Compare Not Equal or Zero Byte
vcmpnezh[.]: Vector Compare Not Equal or Zero Halfword
vcmpnezw[.]: Vector Compare Not Equal or Zero Word

Signed-off-by: Swapnil Bokade <address@hidden>
Signed-off-by: Nikunj A Dadhania <address@hidden>
---
 target-ppc/helper.h     |  6 ++++++
 target-ppc/int_helper.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 target-ppc/translate.c  |  6 ++++++
 3 files changed, 61 insertions(+)

diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index ff6287e..e93b84b 100644
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -144,6 +144,9 @@ DEF_HELPER_4(vcmpequb, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpequh, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpequw, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpequd, void, env, avr, avr, avr)
+DEF_HELPER_4(vcmpnezb, void, env, avr, avr, avr)
+DEF_HELPER_4(vcmpnezh, void, env, avr, avr, avr)
+DEF_HELPER_4(vcmpnezw, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpgtub, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpgtuh, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpgtuw, void, env, avr, avr, avr)
@@ -160,6 +163,9 @@ DEF_HELPER_4(vcmpequb_dot, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpequh_dot, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpequw_dot, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpequd_dot, void, env, avr, avr, avr)
+DEF_HELPER_4(vcmpnezb_dot, void, env, avr, avr, avr)
+DEF_HELPER_4(vcmpnezh_dot, void, env, avr, avr, avr)
+DEF_HELPER_4(vcmpnezw_dot, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpgtub_dot, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpgtuh_dot, void, env, avr, avr, avr)
 DEF_HELPER_4(vcmpgtuw_dot, void, env, avr, avr, avr)
diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c
index c1b341c..bffe8d6 100644
--- a/target-ppc/int_helper.c
+++ b/target-ppc/int_helper.c
@@ -718,6 +718,55 @@ VCMP(gtsd, >, s64)
 #undef VCMP_DO
 #undef VCMP
 
+#define VCMPNEZ_DO(suffix, element, record)                         \
+void helper_vcmpnez##suffix(CPUPPCState *env, ppc_avr_t *r,         \
+                            ppc_avr_t *a, ppc_avr_t *b)                 \
+{                                                                       \
+    uint64_t ones = (uint64_t)-1;                                       \
+    uint64_t all = ones;                                                \
+    uint64_t none = 0;                                                  \
+    int i;                                                              \
+                                                                        \
+    for (i = 0; i < ARRAY_SIZE(r->element); i++) {                      \
+        uint64_t result = ((a->element[i] == 0)                         \
+                           || (b->element[i] == 0)                      \
+                           || (a->element[i] != b->element[i]) ?        \
+                           ones : 0x0);                                 \
+        switch (sizeof(a->element[0])) {                                \
+        case 8:                                                         \
+            r->u64[i] = result;                                         \
+            break;                                                      \
+        case 4:                                                         \
+            r->u32[i] = result;                                         \
+            break;                                                      \
+        case 2:                                                         \
+            r->u16[i] = result;                                         \
+            break;                                                      \
+        case 1:                                                         \
+            r->u8[i] = result;                                          \
+            break;                                                      \
+        }                                                               \
+        all &= result;                                                  \
+        none |= result;                                                 \
+    }                                                                   \
+    if (record) {                                                       \
+        env->crf[6] = ((all != 0) << 3) | ((none == 0) << 1);           \
+    }                                                                   \
+}
+
+/* VCMPNEZ - Vector compare not equal to zero
+ *   suffix  - instruction mnemonic suffix (b: byte, h: halfword, w: word)
+ *   element - element type to access from vector
+ */
+#define VCMPNEZ(suffix, element)         \
+    VCMPNEZ_DO(suffix, element, 0)       \
+    VCMPNEZ_DO(suffix##_dot, element, 1)
+VCMPNEZ(b, u8)
+VCMPNEZ(h, u16)
+VCMPNEZ(w, u32)
+#undef VCMPNEZ_DO
+#undef VCMPNEZ
+
 #define VCMPFP_DO(suffix, compare, order, record)                       \
     void helper_vcmp##suffix(CPUPPCState *env, ppc_avr_t *r,            \
                              ppc_avr_t *a, ppc_avr_t *b)                \
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index b18e13f..7cf0c8e 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -7565,6 +7565,9 @@ GEN_VXRFORM(vcmpequb, 3, 0)
 GEN_VXRFORM(vcmpequh, 3, 1)
 GEN_VXRFORM(vcmpequw, 3, 2)
 GEN_VXRFORM(vcmpequd, 3, 3)
+GEN_VXRFORM(vcmpnezb, 3, 4)
+GEN_VXRFORM(vcmpnezh, 3, 5)
+GEN_VXRFORM(vcmpnezw, 3, 6)
 GEN_VXRFORM(vcmpgtsb, 3, 12)
 GEN_VXRFORM(vcmpgtsh, 3, 13)
 GEN_VXRFORM(vcmpgtsw, 3, 14)
@@ -10998,6 +11001,9 @@ GEN_VXFORM(vminfp, 5, 17),
 GEN_VXRFORM(vcmpequb, 3, 0)
 GEN_VXRFORM(vcmpequh, 3, 1)
 GEN_VXRFORM(vcmpequw, 3, 2)
+GEN_VXRFORM(vcmpnezb, 3, 4)
+GEN_VXRFORM(vcmpnezh, 3, 5)
+GEN_VXRFORM(vcmpnezw, 3, 6)
 GEN_VXRFORM(vcmpgtsb, 3, 12)
 GEN_VXRFORM(vcmpgtsh, 3, 13)
 GEN_VXRFORM(vcmpgtsw, 3, 14)
-- 
2.7.4