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authorBharata B Rao <bharata@linux.vnet.ibm.com>2017-01-09 19:56:14 +0530
committerDavid Gibson <david@gibson.dropbear.id.au>2017-01-31 10:10:14 +1100
commite548780359818debcd10e9d8b6be1abe17c885c0 (patch)
tree28905293f27bd913b3a0d4ba930cfecbc4717e9a /target/ppc
parent07bdd2478b56b035c270404fe3f84e3da1f8682a (diff)
target-ppc: Add xscvdpqp instruction
xscvdpqp: VSX Scalar Convert Double-Precision format to Quad-Precision format Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'target/ppc')
-rw-r--r--target/ppc/fpu_helper.c45
-rw-r--r--target/ppc/helper.h1
-rw-r--r--target/ppc/translate/vsx-impl.inc.c1
-rw-r--r--target/ppc/translate/vsx-ops.inc.c1
4 files changed, 48 insertions, 0 deletions
diff --git a/target/ppc/fpu_helper.c b/target/ppc/fpu_helper.c
index 6e7279cfea..16397ef393 100644
--- a/target/ppc/fpu_helper.c
+++ b/target/ppc/fpu_helper.c
@@ -22,6 +22,15 @@
#include "exec/exec-all.h"
#include "internal.h"
+static inline float128 float128_snan_to_qnan(float128 x)
+{
+ float128 r;
+
+ r.high = x.high | 0x0000800000000000;
+ r.low = x.low;
+ return r;
+}
+
#define float64_snan_to_qnan(x) ((x) | 0x0008000000000000ULL)
#define float32_snan_to_qnan(x) ((x) | 0x00400000)
#define float16_snan_to_qnan(x) ((x) | 0x0200)
@@ -2702,6 +2711,42 @@ VSX_CVT_FP_TO_FP(xscvspdp, 1, float32, float64, VsrW(0), VsrD(0), 1)
VSX_CVT_FP_TO_FP(xvcvdpsp, 2, float64, float32, VsrD(i), VsrW(2*i), 0)
VSX_CVT_FP_TO_FP(xvcvspdp, 2, float32, float64, VsrW(2*i), VsrD(i), 0)
+/* VSX_CVT_FP_TO_FP_VECTOR - VSX floating point/floating point conversion
+ * op - instruction mnemonic
+ * nels - number of elements (1, 2 or 4)
+ * stp - source type (float32 or float64)
+ * ttp - target type (float32 or float64)
+ * sfld - source vsr_t field
+ * tfld - target vsr_t field (f32 or f64)
+ * sfprf - set FPRF
+ */
+#define VSX_CVT_FP_TO_FP_VECTOR(op, nels, stp, ttp, sfld, tfld, sfprf) \
+void helper_##op(CPUPPCState *env, uint32_t opcode) \
+{ \
+ ppc_vsr_t xt, xb; \
+ int i; \
+ \
+ getVSR(rB(opcode) + 32, &xb, env); \
+ getVSR(rD(opcode) + 32, &xt, env); \
+ \
+ for (i = 0; i < nels; i++) { \
+ xt.tfld = stp##_to_##ttp(xb.sfld, &env->fp_status); \
+ if (unlikely(stp##_is_signaling_nan(xb.sfld, \
+ &env->fp_status))) { \
+ float_invalid_op_excp(env, POWERPC_EXCP_FP_VXSNAN, 0); \
+ xt.tfld = ttp##_snan_to_qnan(xt.tfld); \
+ } \
+ if (sfprf) { \
+ helper_compute_fprf_##ttp(env, xt.tfld); \
+ } \
+ } \
+ \
+ putVSR(rD(opcode) + 32, &xt, env); \
+ float_check_status(env); \
+}
+
+VSX_CVT_FP_TO_FP_VECTOR(xscvdpqp, 1, float64, float128, VsrD(0), f128, 1)
+
/* VSX_CVT_FP_TO_FP_HP - VSX floating point/floating point conversion
* involving one half precision value
* op - instruction mnemonic
diff --git a/target/ppc/helper.h b/target/ppc/helper.h
index 3795975a1f..d185eb0ced 100644
--- a/target/ppc/helper.h
+++ b/target/ppc/helper.h
@@ -425,6 +425,7 @@ DEF_HELPER_2(xscmpuqp, void, env, i32)
DEF_HELPER_2(xsmaxdp, void, env, i32)
DEF_HELPER_2(xsmindp, void, env, i32)
DEF_HELPER_2(xscvdphp, void, env, i32)
+DEF_HELPER_2(xscvdpqp, void, env, i32)
DEF_HELPER_2(xscvdpsp, void, env, i32)
DEF_HELPER_2(xscvdpspn, i64, env, i64)
DEF_HELPER_2(xscvhpdp, void, env, i32)
diff --git a/target/ppc/translate/vsx-impl.inc.c b/target/ppc/translate/vsx-impl.inc.c
index 113ccf3b6b..01b562155e 100644
--- a/target/ppc/translate/vsx-impl.inc.c
+++ b/target/ppc/translate/vsx-impl.inc.c
@@ -808,6 +808,7 @@ GEN_VSX_HELPER_2(xsmaxdp, 0x00, 0x14, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xsmindp, 0x00, 0x15, 0, PPC2_VSX)
GEN_VSX_HELPER_2(xscvdphp, 0x16, 0x15, 0x11, PPC2_ISA300)
GEN_VSX_HELPER_2(xscvdpsp, 0x12, 0x10, 0, PPC2_VSX)
+GEN_VSX_HELPER_2(xscvdpqp, 0x04, 0x1A, 0x16, PPC2_ISA300)
GEN_VSX_HELPER_XT_XB_ENV(xscvdpspn, 0x16, 0x10, 0, PPC2_VSX207)
GEN_VSX_HELPER_2(xscvhpdp, 0x16, 0x15, 0x10, PPC2_ISA300)
GEN_VSX_HELPER_2(xscvspdp, 0x12, 0x14, 0, PPC2_VSX)
diff --git a/target/ppc/translate/vsx-ops.inc.c b/target/ppc/translate/vsx-ops.inc.c
index 882e11b923..e75ecd16b3 100644
--- a/target/ppc/translate/vsx-ops.inc.c
+++ b/target/ppc/translate/vsx-ops.inc.c
@@ -112,6 +112,7 @@ GEN_VSX_XFORM_300_EO(xsabsqp, 0x04, 0x19, 0x00, 0x00000001),
GEN_VSX_XFORM_300_EO(xsnabsqp, 0x04, 0x19, 0x08, 0x00000001),
GEN_VSX_XFORM_300_EO(xsnegqp, 0x04, 0x19, 0x10, 0x00000001),
GEN_VSX_XFORM_300(xscpsgnqp, 0x04, 0x03, 0x00000001),
+GEN_VSX_XFORM_300_EO(xscvdpqp, 0x04, 0x1A, 0x16, 0x00000001),
#ifdef TARGET_PPC64
GEN_XX2FORM_EO(xsxexpdp, 0x16, 0x15, 0x00, PPC2_ISA300),