From: "Lucas Mateus Castro (alqotel)"
Implement the following PowerISA v3.1 instructions:
vdivesw: Vector Divide Extended Signed Word
vdiveuw: Vector Divide Extended Unsigned Word
Signed-off-by: Lucas Mateus Castro (alqotel)
---
target/ppc/insn32.decode| 3 ++
target/ppc/translate/vmx-impl.c.inc | 48 +
2 files changed, 51 insertions(+)
diff --git a/target/ppc/insn32.decode b/target/ppc/insn32.decode
index 01bfde8c5e..f6d2d4b257 100644
--- a/target/ppc/insn32.decode
+++ b/target/ppc/insn32.decode
@@ -795,3 +795,6 @@ VDIVSD 000100 . . . 00111001011@VX
VDIVUD 000100 . . . 00011001011@VX
VDIVSQ 000100 . . . 0011011@VX
VDIVUQ 000100 . . . 0001011@VX
+
+VDIVESW 000100 . . . 01110001011@VX
+VDIVEUW 000100 . . . 01010001011@VX
diff --git a/target/ppc/translate/vmx-impl.c.inc
b/target/ppc/translate/vmx-impl.c.inc
index 22572e6a79..8c542bcb29 100644
--- a/target/ppc/translate/vmx-impl.c.inc
+++ b/target/ppc/translate/vmx-impl.c.inc
@@ -3320,6 +3320,54 @@ TRANS_FLAGS2(ISA310, VDIVUD, do_vdiv_vmod, MO_64, NULL,
do_divud)
TRANS_FLAGS2(ISA310, VDIVSQ, do_vx_helper, gen_helper_VDIVSQ)
TRANS_FLAGS2(ISA310, VDIVUQ, do_vx_helper, gen_helper_VDIVUQ)
+static void do_dives_i32(TCGv_i32 t, TCGv_i32 a, TCGv_i32 b)
+{
+TCGv_i64 val1, val2;
+
+val1 = tcg_temp_new_i64();
+val2 = tcg_temp_new_i64();
+
+tcg_gen_ext_i32_i64(val1, a);
+tcg_gen_ext_i32_i64(val2, b);
+
+/* (a << 32)/b */
+tcg_gen_shli_i64(val1, val1, 32);
+tcg_gen_div_i64(val1, val1, val2);
+
+/* if quotient doesn't fit in 32 bits the result is undefined */
+tcg_gen_extrl_i64_i32(t, val1);
+
+tcg_temp_free_i64(val1);
+tcg_temp_free_i64(val2);
+}
+
+static void do_diveu_i32(TCGv_i32 t, TCGv_i32 a, TCGv_i32 b)
+{
+TCGv_i64 val1, val2;
+
+val1 = tcg_temp_new_i64();
+val2 = tcg_temp_new_i64();
+
+tcg_gen_extu_i32_i64(val1, a);
+tcg_gen_extu_i32_i64(val2, b);
+
+/* (a << 32)/b */
+tcg_gen_shli_i64(val1, val1, 32);
+tcg_gen_divu_i64(val1, val1, val2);
+
+/* if quotient doesn't fit in 32 bits the result is undefined */
+tcg_gen_extrl_i64_i32(t, val1);
+
+tcg_temp_free_i64(val1);
+tcg_temp_free_i64(val2);
+}
+
+DIVS32(do_divesw, do_dives_i32)
+DIVU32(do_diveuw, do_diveu_i32)
+
+TRANS_FLAGS2(ISA310, VDIVESW, do_vdiv_vmod, MO_32, do_divesw, NULL)
+TRANS_FLAGS2(ISA310, VDIVEUW, do_vdiv_vmod, MO_32, do_diveuw, NULL)
+
#undef DIVS32
#undef DIVU32
#undef DIVS64
--
2.31.1
