target-ppc: Add xviexpsp instruction

xviexpsp: VSX Vector Insert Exponent Single Precision

Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

diff --git a/target/ppc/translate/vsx-impl.inc.c b/target/ppc/translate/vsx-impl.inc.c
index ed392aaea151db99a6319d4393955f6fb170cff4..c86f1b5a98bed4f2de8abc1b23ab776aa8e20088 100644 (file)
--- a/target/ppc/translate/vsx-impl.inc.c
+++ b/target/ppc/translate/vsx-impl.inc.c
@@ -1344,6 +1344,32 @@ static void gen_xsxsigqp(DisasContext *ctx)
 }
 #endif
 
+static void gen_xviexpsp(DisasContext *ctx)
+{
+    TCGv_i64 xth = cpu_vsrh(xT(ctx->opcode));
+    TCGv_i64 xtl = cpu_vsrl(xT(ctx->opcode));
+    TCGv_i64 xah = cpu_vsrh(xA(ctx->opcode));
+    TCGv_i64 xal = cpu_vsrl(xA(ctx->opcode));
+    TCGv_i64 xbh = cpu_vsrh(xB(ctx->opcode));
+    TCGv_i64 xbl = cpu_vsrl(xB(ctx->opcode));
+    TCGv_i64 t0;
+
+    if (unlikely(!ctx->vsx_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_VSXU);
+        return;
+    }
+    t0 = tcg_temp_new_i64();
+    tcg_gen_andi_i64(xth, xah, 0x807FFFFF807FFFFF);
+    tcg_gen_andi_i64(t0, xbh, 0xFF000000FF);
+    tcg_gen_shli_i64(t0, t0, 23);
+    tcg_gen_or_i64(xth, xth, t0);
+    tcg_gen_andi_i64(xtl, xal, 0x807FFFFF807FFFFF);
+    tcg_gen_andi_i64(t0, xbl, 0xFF000000FF);
+    tcg_gen_shli_i64(t0, t0, 23);
+    tcg_gen_or_i64(xtl, xtl, t0);
+    tcg_temp_free_i64(t0);
+}
+
 #undef GEN_XX2FORM
 #undef GEN_XX3FORM
 #undef GEN_XX2IFORM

diff --git a/target/ppc/translate/vsx-ops.inc.c b/target/ppc/translate/vsx-ops.inc.c
index 09b91c389fa22652c855fe726344a27c474b63ac..93752f07eeb24d4c1ef5099870af485d3aa3e275 100644 (file)
--- a/target/ppc/translate/vsx-ops.inc.c
+++ b/target/ppc/translate/vsx-ops.inc.c
@@ -124,6 +124,8 @@ GEN_HANDLER_E(xsiexpdp, 0x3C, 0x16, 0x1C, 0, PPC_NONE, PPC2_ISA300),
 GEN_VSX_XFORM_300(xsiexpqp, 0x4, 0x1B, 0x00000001),
 #endif
 
+GEN_XX3FORM(xviexpsp, 0x00, 0x1B, PPC2_ISA300),
+
 GEN_XX2FORM(xvabsdp, 0x12, 0x1D, PPC2_VSX),
 GEN_XX2FORM(xvnabsdp, 0x12, 0x1E, PPC2_VSX),
 GEN_XX2FORM(xvnegdp, 0x12, 0x1F, PPC2_VSX),