diff mbox

[RFC,v1,12/29] target-arc: RLC, RRC

Message ID 1473373930-31547-13-git-send-email-mrolnik@gmail.com
State New
Headers show

Commit Message

Michael Rolnik Sept. 8, 2016, 10:31 p.m. UTC 
Signed-off-by: Michael Rolnik <mrolnik@gmail.com>
---
 target-arc/translate-inst.c | 57 +++++++++++++++++++++++++++++++++++++++++++++
 target-arc/translate-inst.h |  2 ++
 2 files changed, 59 insertions(+)
diff mbox

Patch

diff --git a/target-arc/translate-inst.c b/target-arc/translate-inst.c
index 91b7037..a0d601e 100644
--- a/target-arc/translate-inst.c
+++ b/target-arc/translate-inst.c
@@ -1308,3 +1308,60 @@  int arc_gen_BXOR(DisasCtxt *ctx, TCGv dest, TCGv src1, TCGv src2)
     return  BS_NONE;
 }
 
+/*
+    RLC
+*/
+int arc_gen_RLC(DisasCtxt *ctx, TCGv dest, TCGv src1)
+{
+    TCGv rslt = dest;
+
+    if (TCGV_EQUAL(dest, src1)) {
+        rslt = tcg_temp_new_i32();
+    }
+
+    tcg_gen_shli_tl(rslt, src1, 1);
+    tcg_gen_or_tl(rslt, rslt, cpu_Cf);
+
+    if (ctx->opt.f) {
+        tcg_gen_setcond_tl(TCG_COND_EQ, cpu_Zf, rslt, ctx->zero);
+        tcg_gen_shri_tl(cpu_Nf, rslt, 31);
+        tcg_gen_shri_tl(cpu_Cf, src1, 31);
+    }
+
+    if (!TCGV_EQUAL(dest, rslt)) {
+        tcg_gen_mov_tl(dest, rslt);
+        tcg_temp_free_i32(rslt);
+    }
+
+    return  BS_NONE;
+}
+
+/*
+    RRC
+*/
+int arc_gen_RRC(DisasCtxt *ctx, TCGv dest, TCGv src1)
+{
+    TCGv rslt = dest;
+
+    if (TCGV_EQUAL(dest, src1)) {
+        rslt = tcg_temp_new_i32();
+    }
+
+    tcg_gen_andi_tl(rslt, src1, 0xfffffffe);
+    tcg_gen_or_tl(rslt, rslt, cpu_Cf);
+    tcg_gen_rotri_tl(rslt, rslt, 1);
+
+    if (ctx->opt.f) {
+        tcg_gen_setcond_tl(TCG_COND_EQ, cpu_Zf, rslt, ctx->zero);
+        tcg_gen_shri_tl(cpu_Nf, rslt, 31);
+        tcg_gen_andi_tl(cpu_Cf, src1, 1);
+    }
+
+    if (!TCGV_EQUAL(dest, rslt)) {
+        tcg_gen_mov_tl(dest, rslt);
+        tcg_temp_free_i32(rslt);
+    }
+
+    return  BS_NONE;
+}
+
diff --git a/target-arc/translate-inst.h b/target-arc/translate-inst.h
index 88cae1c..5e1c52d 100644
--- a/target-arc/translate-inst.h
+++ b/target-arc/translate-inst.h
@@ -84,3 +84,5 @@  int arc_gen_BSET(DisasCtxt *c, TCGv dest, TCGv src1, TCGv src2);
 int arc_gen_BTST(DisasCtxt *c, TCGv src1, TCGv src2);
 int arc_gen_BXOR(DisasCtxt *c, TCGv dest, TCGv src1, TCGv src2);
 
+int arc_gen_RRC(DisasCtxt *c, TCGv dest, TCGv src1);
+int arc_gen_RLC(DisasCtxt *c, TCGv dest, TCGv src1);