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[Qemu-ppc] [PATCH v3 2/4] target-ppc: add vrldnmi and vrlwmi instruction
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From: |
Nikunj A Dadhania |
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Subject: |
[Qemu-ppc] [PATCH v3 2/4] target-ppc: add vrldnmi and vrlwmi instructions |
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Date: |
Sun, 30 Oct 2016 08:44:56 +0530 |
From: "Gautham R. Shenoy" <address@hidden>
vrldmi: Vector Rotate Left Dword then Mask Insert
vrlwmi: Vector Rotate Left Word then Mask Insert
Signed-off-by: Gautham R. Shenoy <address@hidden>
Signed-off-by: Bharata B Rao <address@hidden>
( use extract[32,64] and rol[32,64], introduce mask helpers in
internal.h )
Signed-off-by: Nikunj A Dadhania <address@hidden>
---
disas/ppc.c | 2 ++
target-ppc/helper.h | 2 ++
target-ppc/int_helper.c | 23 +++++++++++++++++
target-ppc/internal.h | 50 +++++++++++++++++++++++++++++++++++++
target-ppc/translate.c | 29 +--------------------
target-ppc/translate/vmx-impl.inc.c | 6 +++++
target-ppc/translate/vmx-ops.inc.c | 4 +--
7 files changed, 86 insertions(+), 30 deletions(-)
create mode 100644 target-ppc/internal.h
diff --git a/disas/ppc.c b/disas/ppc.c
index 052cebe..32f0d8d 100644
--- a/disas/ppc.c
+++ b/disas/ppc.c
@@ -2286,6 +2286,8 @@ const struct powerpc_opcode powerpc_opcodes[] = {
{ "vrlh", VX(4, 68), VX_MASK, PPCVEC, { VD, VA, VB } },
{ "vrlw", VX(4, 132), VX_MASK, PPCVEC, { VD, VA, VB } },
{ "vrsqrtefp", VX(4, 330), VX_MASK, PPCVEC, { VD, VB } },
+{ "vrldmi", VX(4, 197), VX_MASK, PPCVEC, { VD, VA, VB } },
+{ "vrlwmi", VX(4, 133), VX_MASK, PPCVEC, { VD, VA, VB} },
{ "vsel", VXA(4, 42), VXA_MASK, PPCVEC, { VD, VA, VB, VC } },
{ "vsl", VX(4, 452), VX_MASK, PPCVEC, { VD, VA, VB } },
{ "vslb", VX(4, 260), VX_MASK, PPCVEC, { VD, VA, VB } },
diff --git a/target-ppc/helper.h b/target-ppc/helper.h
index 3916b2e..ac94f8a 100644
--- a/target-ppc/helper.h
+++ b/target-ppc/helper.h
@@ -325,6 +325,8 @@ DEF_HELPER_4(vmaxfp, void, env, avr, avr, avr)
DEF_HELPER_4(vminfp, void, env, avr, avr, avr)
DEF_HELPER_3(vrefp, void, env, avr, avr)
DEF_HELPER_3(vrsqrtefp, void, env, avr, avr)
+DEF_HELPER_3(vrlwmi, void, avr, avr, avr)
+DEF_HELPER_3(vrldmi, void, avr, avr, avr)
DEF_HELPER_5(vmaddfp, void, env, avr, avr, avr, avr)
DEF_HELPER_5(vnmsubfp, void, env, avr, avr, avr, avr)
DEF_HELPER_3(vexptefp, void, env, avr, avr)
diff --git a/target-ppc/int_helper.c b/target-ppc/int_helper.c
index dca4798..e96dfe4 100644
--- a/target-ppc/int_helper.c
+++ b/target-ppc/int_helper.c
@@ -18,6 +18,7 @@
*/
#include "qemu/osdep.h"
#include "cpu.h"
+#include "internal.h"
#include "exec/exec-all.h"
#include "qemu/host-utils.h"
#include "exec/helper-proto.h"
@@ -1717,6 +1718,28 @@ void helper_vrsqrtefp(CPUPPCState *env, ppc_avr_t *r,
ppc_avr_t *b)
}
}
+#define VRLMI(name, size, element) \
+void helper_##name(ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b) \
+{ \
+ int i; \
+ for (i = 0; i < ARRAY_SIZE(r->element); i++) { \
+ uint##size##_t src1 = a->element[i]; \
+ uint##size##_t src2 = b->element[i]; \
+ uint##size##_t src3 = r->element[i]; \
+ uint##size##_t begin, end, shift, mask, rot_val; \
+ \
+ shift = extract##size(src2, 0, 6); \
+ end = extract##size(src2, 8, 6); \
+ begin = extract##size(src2, 16, 6); \
+ rot_val = rol##size(src1, shift); \
+ mask = mask_u##size(begin, end); \
+ r->element[i] = (rot_val & mask) | (src3 & ~mask); \
+ } \
+}
+
+VRLMI(vrldmi, 64, u64);
+VRLMI(vrlwmi, 32, u32);
+
void helper_vsel(CPUPPCState *env, ppc_avr_t *r, ppc_avr_t *a, ppc_avr_t *b,
ppc_avr_t *c)
{
diff --git a/target-ppc/internal.h b/target-ppc/internal.h
new file mode 100644
index 0000000..1ff4896
--- /dev/null
+++ b/target-ppc/internal.h
@@ -0,0 +1,50 @@
+/*
+ * PowerPC interal definitions for qemu.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef PPC_INTERNAL_H
+#define PPC_INTERNAL_H
+
+#define FUNC_MASK(name, ret_type, size, max_val) \
+static inline ret_type name(uint##size##_t start, \
+ uint##size##_t end) \
+{ \
+ ret_type ret, max_bit = size - 1; \
+ \
+ if (likely(start == 0)) { \
+ ret = max_val << (max_bit - end); \
+ } else if (likely(end == max_bit)) { \
+ ret = max_val >> start; \
+ } else { \
+ ret = (((uint##size##_t)(-1ULL)) >> (start)) ^ \
+ (((uint##size##_t)(-1ULL) >> (end)) >> 1); \
+ if (unlikely(start > end)) { \
+ return ~ret; \
+ } \
+ } \
+ \
+ return ret; \
+}
+
+#if defined(TARGET_PPC64)
+FUNC_MASK(MASK, target_ulong, 64, UINT64_MAX);
+#else
+FUNC_MASK(MASK, target_ulong, 32, UINT32_MAX);
+#endif
+FUNC_MASK(mask_u32, uint32_t, 32, UINT32_MAX);
+FUNC_MASK(mask_u64, uint64_t, 64, UINT64_MAX);
+
+#endif /* PPC_INTERNAL_H */
diff --git a/target-ppc/translate.c b/target-ppc/translate.c
index 43505a9..988bc26 100644
--- a/target-ppc/translate.c
+++ b/target-ppc/translate.c
@@ -20,6 +20,7 @@
#include "qemu/osdep.h"
#include "cpu.h"
+#include "internal.h"
#include "disas/disas.h"
#include "exec/exec-all.h"
#include "tcg-op.h"
@@ -561,34 +562,6 @@ EXTRACT_HELPER(DCM, 10, 6)
/* DFP Z23-form */
EXTRACT_HELPER(RMC, 9, 2)
-/* Create a mask between <start> and <end> bits */
-static inline target_ulong MASK(uint32_t start, uint32_t end)
-{
- target_ulong ret;
-
-#if defined(TARGET_PPC64)
- if (likely(start == 0)) {
- ret = UINT64_MAX << (63 - end);
- } else if (likely(end == 63)) {
- ret = UINT64_MAX >> start;
- }
-#else
- if (likely(start == 0)) {
- ret = UINT32_MAX << (31 - end);
- } else if (likely(end == 31)) {
- ret = UINT32_MAX >> start;
- }
-#endif
- else {
- ret = (((target_ulong)(-1ULL)) >> (start)) ^
- (((target_ulong)(-1ULL) >> (end)) >> 1);
- if (unlikely(start > end))
- return ~ret;
- }
-
- return ret;
-}
-
EXTRACT_HELPER_SPLIT(xT, 0, 1, 21, 5);
EXTRACT_HELPER_SPLIT(xS, 0, 1, 21, 5);
EXTRACT_HELPER_SPLIT(xA, 2, 1, 16, 5);
diff --git a/target-ppc/translate/vmx-impl.inc.c
b/target-ppc/translate/vmx-impl.inc.c
index fc612d9..fdfbd6a 100644
--- a/target-ppc/translate/vmx-impl.inc.c
+++ b/target-ppc/translate/vmx-impl.inc.c
@@ -488,7 +488,13 @@ GEN_VXFORM_DUAL(vsubeuqm, PPC_NONE, PPC2_ALTIVEC_207, \
GEN_VXFORM(vrlb, 2, 0);
GEN_VXFORM(vrlh, 2, 1);
GEN_VXFORM(vrlw, 2, 2);
+GEN_VXFORM(vrlwmi, 2, 2);
+GEN_VXFORM_DUAL(vrlw, PPC_ALTIVEC, PPC_NONE, \
+ vrlwmi, PPC_NONE, PPC2_ISA300)
GEN_VXFORM(vrld, 2, 3);
+GEN_VXFORM(vrldmi, 2, 3);
+GEN_VXFORM_DUAL(vrld, PPC_NONE, PPC2_ALTIVEC_207, \
+ vrldmi, PPC_NONE, PPC2_ISA300)
GEN_VXFORM(vsl, 2, 7);
GEN_VXFORM(vsr, 2, 11);
GEN_VXFORM_ENV(vpkuhum, 7, 0);
diff --git a/target-ppc/translate/vmx-ops.inc.c
b/target-ppc/translate/vmx-ops.inc.c
index cc7ed7e..76b3593 100644
--- a/target-ppc/translate/vmx-ops.inc.c
+++ b/target-ppc/translate/vmx-ops.inc.c
@@ -143,8 +143,8 @@ GEN_VXFORM_207(vsubcuq, 0, 21),
GEN_VXFORM_DUAL(vsubeuqm, vsubecuq, 31, 0xFF, PPC_NONE, PPC2_ALTIVEC_207),
GEN_VXFORM(vrlb, 2, 0),
GEN_VXFORM(vrlh, 2, 1),
-GEN_VXFORM(vrlw, 2, 2),
-GEN_VXFORM_207(vrld, 2, 3),
+GEN_VXFORM_DUAL(vrlw, vrlwmi, 2, 2, PPC_ALTIVEC, PPC_NONE),
+GEN_VXFORM_DUAL(vrld, vrldmi, 2, 3, PPC_NONE, PPC2_ALTIVEC_207),
GEN_VXFORM(vsl, 2, 7),
GEN_VXFORM(vsr, 2, 11),
GEN_VXFORM(vpkuhum, 7, 0),
--
2.7.4