From: Víctor Colombo <victor.colo...@eldorado.org.br>
Signed-off-by: Víctor Colombo <victor.colo...@eldorado.org.br>
Signed-off-by: Matheus Ferst <matheus.fe...@eldorado.org.br>
---
target/ppc/fpu_helper.c | 21 +++++++++++++++++++
target/ppc/helper.h | 1 +
target/ppc/insn32.decode | 11 +++++++---
target/ppc/translate/vsx-impl.c.inc | 31 ++++++++++++++++++++++++++++-
4 files changed, 60 insertions(+), 4 deletions(-)
diff --git a/target/ppc/fpu_helper.c b/target/ppc/fpu_helper.c
index 7773333bd7..d77900fff1 100644
--- a/target/ppc/fpu_helper.c
+++ b/target/ppc/fpu_helper.c
@@ -2790,6 +2790,27 @@ VSX_CVT_FP_TO_FP_HP(xscvhpdp, 1, float16, float64,
VsrH(3), VsrD(0), 1)
VSX_CVT_FP_TO_FP_HP(xvcvsphp, 4, float32, float16, VsrW(i), VsrH(2 * i + 1),
0)
VSX_CVT_FP_TO_FP_HP(xvcvhpsp, 4, float16, float32, VsrH(2 * i + 1), VsrW(i), 0)
+void helper_XVCVSPBF16(CPUPPCState *env, ppc_vsr_t *xt, ppc_vsr_t *xb)
+{
+ ppc_vsr_t t = { };
+ int i;
+
+ helper_reset_fpstatus(env);
+ for (i = 0; i < 4; i++) {
+ if (unlikely(float32_is_signaling_nan(xb->VsrW(i), &env->fp_status))) {
+ float_invalid_op_vxsnan(env, GETPC());
+ t.VsrH(2 * i + 1) = float32_to_bfloat16(
+ float32_snan_to_qnan(xb->VsrW(i)), &env->fp_status);
+ } else {
+ t.VsrH(2 * i + 1) =
+ float32_to_bfloat16(xb->VsrW(i), &env->fp_status);
+ }
+ }
+
+ *xt = t;
+ do_float_check_status(env, GETPC());
+}
+
void helper_XSCVQPDP(CPUPPCState *env, uint32_t ro, ppc_vsr_t *xt,
ppc_vsr_t *xb)
{
diff --git a/target/ppc/helper.h b/target/ppc/helper.h
index d3af130dc2..805a5046d8 100644
--- a/target/ppc/helper.h
+++ b/target/ppc/helper.h
@@ -494,6 +494,7 @@ DEF_HELPER_FLAGS_4(xvcmpnesp, TCG_CALL_NO_RWG, i32, env,
vsr, vsr, vsr)
DEF_HELPER_3(xvcvspdp, void, env, vsr, vsr)
DEF_HELPER_3(xvcvsphp, void, env, vsr, vsr)
DEF_HELPER_3(xvcvhpsp, void, env, vsr, vsr)
+DEF_HELPER_3(XVCVSPBF16, void, env, vsr, vsr)
DEF_HELPER_3(xvcvspsxds, void, env, vsr, vsr)
DEF_HELPER_3(xvcvspsxws, void, env, vsr, vsr)
DEF_HELPER_3(xvcvspuxds, void, env, vsr, vsr)
diff --git a/target/ppc/insn32.decode b/target/ppc/insn32.decode
index 892d4bfd84..8964898f20 100644
--- a/target/ppc/insn32.decode
+++ b/target/ppc/insn32.decode
@@ -152,8 +152,11 @@
%xx_xb 1:1 11:5
%xx_xa 2:1 16:5
%xx_xc 3:1 6:5
-&XX2 xt xb uim:uint8_t
-@XX2 ...... ..... ... uim:2 ..... ......... .. &XX2 xt=%xx_xt
xb=%xx_xb
+&XX2 xt xb
+@XX2 ...... ..... ..... ..... ......... .. &XX2 xt=%xx_xt
xb=%xx_xb
+
+&XX2_uim2 xt xb uim:uint8_t
+@XX2_uim2 ...... ..... ... uim:2 ..... ......... .. &XX2_uim2
xt=%xx_xt xb=%xx_xb
&XX2_bf_xb bf xb
@XX2_bf_xb ...... bf:3 .. ..... ..... ......... . . &XX2_bf_xb
xb=%xx_xb
@@ -635,7 +638,7 @@ XSNMSUBQP 111111 ..... ..... ..... 0111100100 .
@X_rc
## VSX splat instruction
XXSPLTIB 111100 ..... 00 ........ 0101101000 . @X_imm8
-XXSPLTW 111100 ..... ---.. ..... 010100100 . . @XX2
+XXSPLTW 111100 ..... ---.. ..... 010100100 . . @XX2_uim2
## VSX Permute Instructions
@@ -675,6 +678,8 @@ XSCMPGTQP 111111 ..... ..... ..... 0011100100 - @X
## VSX Binary Floating-Point Convert Instructions
XSCVQPDP 111111 ..... 10100 ..... 1101000100 . @X_tb_rc
+XVCVBF16SPN 111100 ..... 10000 ..... 111011011 .. @XX2
+XVCVSPBF16 111100 ..... 10001 ..... 111011011 .. @XX2
## VSX Vector Test Least-Significant Bit by Byte Instruction
diff --git a/target/ppc/translate/vsx-impl.c.inc
b/target/ppc/translate/vsx-impl.c.inc
index 0546dc736e..2930537b8e 100644
--- a/target/ppc/translate/vsx-impl.c.inc
+++ b/target/ppc/translate/vsx-impl.c.inc
@@ -1576,7 +1576,7 @@ static bool trans_XXSEL(DisasContext *ctx, arg_XX4 *a)
return true;
}
-static bool trans_XXSPLTW(DisasContext *ctx, arg_XX2 *a)
+static bool trans_XXSPLTW(DisasContext *ctx, arg_XX2_uim2 *a)
{
int tofs, bofs;
@@ -2532,6 +2532,35 @@ TRANS(XSCMPGTQP, do_xscmpqp, gen_helper_XSCMPGTQP)
TRANS(XSMAXCQP, do_xscmpqp, gen_helper_XSMAXCQP)
TRANS(XSMINCQP, do_xscmpqp, gen_helper_XSMINCQP)
+static bool trans_XVCVSPBF16(DisasContext *ctx, arg_XX2 *a)
+{
+ TCGv_ptr xt, xb;
+
+ REQUIRE_INSNS_FLAGS2(ctx, ISA310);
+ REQUIRE_VSX(ctx);
+
+ xt = gen_vsr_ptr(a->xt);
+ xb = gen_vsr_ptr(a->xb);
+
+ gen_helper_XVCVSPBF16(cpu_env, xt, xb);
+
+ tcg_temp_free_ptr(xt);
+ tcg_temp_free_ptr(xb);
+
+ return true;
+}
+
+static bool trans_XVCVBF16SPN(DisasContext *ctx, arg_XX2 *a)
+{
+ REQUIRE_INSNS_FLAGS2(ctx, ISA310);
+ REQUIRE_VSX(ctx);
+
+ tcg_gen_gvec_shli(MO_32, vsr_full_offset(a->xt), vsr_full_offset(a->xb),
+ 16, 16, 16);
+
+ return true;
+}
+
#undef GEN_XX2FORM
#undef GEN_XX3FORM
#undef GEN_XX2IFORM
--
2.25.1
