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authorRichard Henderson <rth@twiddle.net>2015-08-21 14:41:41 -0700
committerRichard Henderson <rth@twiddle.net>2015-09-15 07:45:33 -0700
commit2369976deb9fa03bb32be690025a6f51de4cd377 (patch)
tree1ccfd7c2b729484d099c5e82929420be9b0b292c /target-tilegx
parentc06b1817297b4486c372950b4f65d34417aa01d0 (diff)
downloadqemu-arm-2369976deb9fa03bb32be690025a6f51de4cd377.tar.gz
target-tilegx: Handle shift instructions
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target-tilegx')
-rw-r--r--target-tilegx/translate.c56
1 files changed, 54 insertions, 2 deletions
diff --git a/target-tilegx/translate.c b/target-tilegx/translate.c
index ba56a2ebcc..f15d0d0ac6 100644
--- a/target-tilegx/translate.c
+++ b/target-tilegx/translate.c
@@ -470,6 +470,7 @@ static TileExcp gen_rrr_opcode(DisasContext *dc, unsigned opext,
TCGv tdest = dest_gr(dc, dest);
TCGv tsrca = load_gr(dc, srca);
TCGv tsrcb = load_gr(dc, srcb);
+ TCGv t0;
const char *mnemonic;
switch (opext) {
@@ -662,7 +663,10 @@ static TileExcp gen_rrr_opcode(DisasContext *dc, unsigned opext,
case OE_RRR(ROTL, 0, X1):
case OE_RRR(ROTL, 6, Y0):
case OE_RRR(ROTL, 6, Y1):
- return TILEGX_EXCP_OPCODE_UNIMPLEMENTED;
+ tcg_gen_andi_tl(tdest, tsrcb, 63);
+ tcg_gen_rotl_tl(tdest, tsrca, tdest);
+ mnemonic = "rotl";
+ break;
case OE_RRR(SHL1ADDX, 0, X0):
case OE_RRR(SHL1ADDX, 0, X1):
case OE_RRR(SHL1ADDX, 7, Y0):
@@ -716,21 +720,45 @@ static TileExcp gen_rrr_opcode(DisasContext *dc, unsigned opext,
break;
case OE_RRR(SHLX, 0, X0):
case OE_RRR(SHLX, 0, X1):
+ tcg_gen_andi_tl(tdest, tsrcb, 31);
+ tcg_gen_shl_tl(tdest, tsrca, tdest);
+ tcg_gen_ext32s_tl(tdest, tdest);
+ mnemonic = "shlx";
+ break;
case OE_RRR(SHL, 0, X0):
case OE_RRR(SHL, 0, X1):
case OE_RRR(SHL, 6, Y0):
case OE_RRR(SHL, 6, Y1):
+ tcg_gen_andi_tl(tdest, tsrcb, 63);
+ tcg_gen_shl_tl(tdest, tsrca, tdest);
+ mnemonic = "shl";
+ break;
case OE_RRR(SHRS, 0, X0):
case OE_RRR(SHRS, 0, X1):
case OE_RRR(SHRS, 6, Y0):
case OE_RRR(SHRS, 6, Y1):
+ tcg_gen_andi_tl(tdest, tsrcb, 63);
+ tcg_gen_sar_tl(tdest, tsrca, tdest);
+ mnemonic = "shrs";
+ break;
case OE_RRR(SHRUX, 0, X0):
case OE_RRR(SHRUX, 0, X1):
+ t0 = tcg_temp_new();
+ tcg_gen_andi_tl(t0, tsrcb, 31);
+ tcg_gen_ext32u_tl(tdest, tsrca);
+ tcg_gen_shr_tl(tdest, tdest, t0);
+ tcg_gen_ext32s_tl(tdest, tdest);
+ tcg_temp_free(t0);
+ mnemonic = "shrux";
+ break;
case OE_RRR(SHRU, 0, X0):
case OE_RRR(SHRU, 0, X1):
case OE_RRR(SHRU, 6, Y0):
case OE_RRR(SHRU, 6, Y1):
- return TILEGX_EXCP_OPCODE_UNIMPLEMENTED;
+ tcg_gen_andi_tl(tdest, tsrcb, 63);
+ tcg_gen_shr_tl(tdest, tsrca, tdest);
+ mnemonic = "shru";
+ break;
case OE_RRR(SHUFFLEBYTES, 0, X0):
gen_helper_shufflebytes(tdest, load_gr(dc, dest), tsrca, tsrca);
mnemonic = "shufflebytes";
@@ -1064,22 +1092,46 @@ static TileExcp gen_rri_opcode(DisasContext *dc, unsigned opext,
case OE_SH(ROTLI, X1):
case OE_SH(ROTLI, Y0):
case OE_SH(ROTLI, Y1):
+ tcg_gen_rotli_tl(tdest, tsrca, imm);
+ mnemonic = "rotli";
+ break;
case OE_SH(SHLI, X0):
case OE_SH(SHLI, X1):
case OE_SH(SHLI, Y0):
case OE_SH(SHLI, Y1):
+ tcg_gen_shli_tl(tdest, tsrca, imm);
+ mnemonic = "shli";
+ break;
case OE_SH(SHLXI, X0):
case OE_SH(SHLXI, X1):
+ tcg_gen_shli_tl(tdest, tsrca, imm & 31);
+ tcg_gen_ext32s_tl(tdest, tdest);
+ mnemonic = "shlxi";
+ break;
case OE_SH(SHRSI, X0):
case OE_SH(SHRSI, X1):
case OE_SH(SHRSI, Y0):
case OE_SH(SHRSI, Y1):
+ tcg_gen_sari_tl(tdest, tsrca, imm);
+ mnemonic = "shrsi";
+ break;
case OE_SH(SHRUI, X0):
case OE_SH(SHRUI, X1):
case OE_SH(SHRUI, Y0):
case OE_SH(SHRUI, Y1):
+ tcg_gen_shri_tl(tdest, tsrca, imm);
+ mnemonic = "shrui";
+ break;
case OE_SH(SHRUXI, X0):
case OE_SH(SHRUXI, X1):
+ if ((imm & 31) == 0) {
+ tcg_gen_ext32s_tl(tdest, tsrca);
+ } else {
+ tcg_gen_ext32u_tl(tdest, tsrca);
+ tcg_gen_shri_tl(tdest, tdest, imm & 31);
+ }
+ mnemonic = "shlxi";
+ break;
case OE_SH(V1SHLI, X0):
case OE_SH(V1SHLI, X1):
case OE_SH(V1SHRSI, X0):