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target-tilegx: Implement v2sh* instructions

Message ID 1443748957-2640-1-git-send-email-gang.chen.5i5j@gmail.com
State New
Headers show

Commit Message

Chen Gang Oct. 2, 2015, 1:22 a.m. UTC 
From: Chen Gang <gang.chen.5i5j@gmail.com>

It is just according to v1sh* instructions implementation.

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
---
 target-tilegx/translate.c | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)
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Patch

diff --git a/target-tilegx/translate.c b/target-tilegx/translate.c
index f711c18..03c8e76 100644
--- a/target-tilegx/translate.c
+++ b/target-tilegx/translate.c
@@ -1769,11 +1769,29 @@  static TileExcp gen_rri_opcode(DisasContext *dc, unsigned opext,
         break;
     case OE_SH(V2SHLI, X0):
     case OE_SH(V2SHLI, X1):
+        tdest = dest_gr(dc, dest);
+        i2 = imm & 15;
+        i3 = 0xffff >> i2;
+        tcg_gen_andi_tl(tdest, tsrca, V2_IMM(i3));
+        tcg_gen_shli_tl(tdest, tdest, i2);
+        mnemonic = "v2shli";
+        break;
     case OE_SH(V2SHRSI, X0):
     case OE_SH(V2SHRSI, X1):
+        t0 = tcg_const_tl(imm & 15);
+        gen_helper_v2shrs(TDEST, tsrca, t0);
+        tcg_temp_free(t0);
+        mnemonic = "v2shrsi";
+        break;
     case OE_SH(V2SHRUI, X0):
     case OE_SH(V2SHRUI, X1):
-        return TILEGX_EXCP_OPCODE_UNIMPLEMENTED;
+        tdest = dest_gr(dc, dest);
+        i2 = imm & 15;
+        i3 = (0xffff << i2) & 0xffff;
+        tcg_gen_andi_tl(tdest, tsrca, V2_IMM(i3));
+        tcg_gen_shri_tl(tdest, tdest, i2);
+        mnemonic = "v2shrui";
+        break;
 
     case OE(ADDLI_OPCODE_X0, 0, X0):
     case OE(ADDLI_OPCODE_X1, 0, X1):