target/sparc: Implement SUBXC, SUBXCcc

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

diff --git a/target/sparc/insns.decode b/target/sparc/insns.decode
index 2ebee5a1ca643c0ce169175cd7cab5f61e0bf2ab..a7720560f83ab3b42de77f97d4f9c5b7010f6889 100644 (file)
--- a/target/sparc/insns.decode
+++ b/target/sparc/insns.decode
@@ -447,6 +447,8 @@ FCMPEq      10 000 cc:2 110101 .....  0 0101 0111 .....    \
     PDISTN      10 ..... 110110 ..... 0 0011 1111 .....    @r_d_d
 
     FMEAN16     10 ..... 110110 ..... 0 0100 0000 .....    @d_d_d
+    SUBXC       10 ..... 110110 ..... 0 0100 0001 .....    @r_r_r
+    SUBXCcc     10 ..... 110110 ..... 0 0100 0011 .....    @r_r_r
     FCHKSM16    10 ..... 110110 ..... 0 0100 0100 .....    @d_d_d
     FALIGNDATAg 10 ..... 110110 ..... 0 0100 1000 .....    @d_d_d
     FPMERGE     10 ..... 110110 ..... 0 0100 1011 .....    @d_r_r

diff --git a/target/sparc/translate.c b/target/sparc/translate.c
index 5bed23a00b10a75588f032d3caf9e3c054595c39..b10936a61a3376e5fe54d876945c7d89309e7d4f 100644 (file)
--- a/target/sparc/translate.c
+++ b/target/sparc/translate.c
@@ -515,6 +515,17 @@ static void gen_op_subccc(TCGv dst, TCGv src1, TCGv src2)
     gen_op_subcc_int(dst, src1, src2, gen_carry32());
 }
 
+static void gen_op_subxc(TCGv dst, TCGv src1, TCGv src2)
+{
+    tcg_gen_sub_tl(dst, src1, src2);
+    tcg_gen_sub_tl(dst, dst, cpu_cc_C);
+}
+
+static void gen_op_subxccc(TCGv dst, TCGv src1, TCGv src2)
+{
+    gen_op_subcc_int(dst, src1, src2, cpu_cc_C);
+}
+
 static void gen_op_mulscc(TCGv dst, TCGv src1, TCGv src2)
 {
     TCGv zero = tcg_constant_tl(0);
@@ -3963,6 +3974,9 @@ TRANS(ARRAY32, VIS1, do_rrr, a, gen_op_array32)
 TRANS(ADDXC, VIS3, do_rrr, a, gen_op_addxc)
 TRANS(ADDXCcc, VIS3, do_rrr, a, gen_op_addxccc)
 
+TRANS(SUBXC, VIS4, do_rrr, a, gen_op_subxc)
+TRANS(SUBXCcc, VIS4, do_rrr, a, gen_op_subxccc)
+
 TRANS(UMULXHI, VIS3, do_rrr, a, gen_op_umulxhi)
 
 static void gen_op_alignaddr(TCGv dst, TCGv s1, TCGv s2)