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authorLeon Alrae <leon.alrae@imgtec.com>2014-06-27 08:49:01 +0100
committerLeon Alrae <leon.alrae@imgtec.com>2014-10-13 12:38:24 +0100
commitb691d9d2a0c13ad27df44964f6fdd34d5f259607 (patch)
tree43c0846b3a70b4953273c5a540513a1b671ba16e
parentfecd2646957bf7c2e0612c6b218903d982560014 (diff)
target-mips: add SELEQZ and SELNEZ instructions
Signed-off-by: Leon Alrae <leon.alrae@imgtec.com> Reviewed-by: Aurelien Jarno <aurelien@aurel32.net> Reviewed-by: James Hogan <james.hogan@imgtec.com>
-rw-r--r--disas/mips.c8
-rw-r--r--target-mips/translate.c18
2 files changed, 24 insertions, 2 deletions
diff --git a/disas/mips.c b/disas/mips.c
index 2106b574cb..b950e539e8 100644
--- a/disas/mips.c
+++ b/disas/mips.c
@@ -521,6 +521,8 @@ struct mips_opcode
#define INSN_ISA64 0x00000040
#define INSN_ISA32R2 0x00000080
#define INSN_ISA64R2 0x00000100
+#define INSN_ISA32R6 0x00000200
+#define INSN_ISA64R6 0x00000400
/* Masks used for MIPS-defined ASEs. */
#define INSN_ASE_MASK 0x0000f000
@@ -585,6 +587,8 @@ struct mips_opcode
#define ISA_MIPS32R2 (ISA_MIPS32 | INSN_ISA32R2)
#define ISA_MIPS64R2 (ISA_MIPS64 | INSN_ISA32R2 | INSN_ISA64R2)
+#define ISA_MIPS32R6 (ISA_MIPS32R2 | INSN_ISA32R6)
+#define ISA_MIPS64R6 (ISA_MIPS64R2 | INSN_ISA32R6 | INSN_ISA64R6)
/* CPU defines, use instead of hardcoding processor number. Keep this
in sync with bfd/archures.c in order for machine selection to work. */
@@ -1121,6 +1125,8 @@ extern const int bfd_mips16_num_opcodes;
#define I64 INSN_ISA64
#define I33 INSN_ISA32R2
#define I65 INSN_ISA64R2
+#define I32R6 INSN_ISA32R6
+#define I64R6 INSN_ISA64R6
/* MIPS64 MIPS-3D ASE support. */
#define I16 INSN_MIPS16
@@ -1209,6 +1215,8 @@ const struct mips_opcode mips_builtin_opcodes[] =
them first. The assemblers uses a hash table based on the
instruction name anyhow. */
/* name, args, match, mask, pinfo, membership */
+{"seleqz", "d,v,t", 0x00000035, 0xfc0007ff, WR_d|RD_s|RD_t, 0, I32R6},
+{"selnez", "d,v,t", 0x00000037, 0xfc0007ff, WR_d|RD_s|RD_t, 0, I32R6},
{"pref", "k,o(b)", 0xcc000000, 0xfc000000, RD_b, 0, I4|I32|G3 },
{"prefx", "h,t(b)", 0x4c00000f, 0xfc0007ff, RD_b|RD_t, 0, I4|I33 },
{"nop", "", 0x00000000, 0xffffffff, 0, INSN2_ALIAS, I1 }, /* sll */
diff --git a/target-mips/translate.c b/target-mips/translate.c
index de1174736d..ba9daac32b 100644
--- a/target-mips/translate.c
+++ b/target-mips/translate.c
@@ -193,6 +193,9 @@ enum {
OPC_MOVZ = 0x0A | OPC_SPECIAL,
OPC_MOVN = 0x0B | OPC_SPECIAL,
+ OPC_SELEQZ = 0x35 | OPC_SPECIAL,
+ OPC_SELNEZ = 0x37 | OPC_SPECIAL,
+
OPC_MOVCI = 0x01 | OPC_SPECIAL,
/* Special */
@@ -205,8 +208,6 @@ enum {
OPC_SPECIAL15_RESERVED = 0x15 | OPC_SPECIAL,
OPC_SPECIAL28_RESERVED = 0x28 | OPC_SPECIAL,
OPC_SPECIAL29_RESERVED = 0x29 | OPC_SPECIAL,
- OPC_SPECIAL35_RESERVED = 0x35 | OPC_SPECIAL,
- OPC_SPECIAL37_RESERVED = 0x37 | OPC_SPECIAL,
OPC_SPECIAL39_RESERVED = 0x39 | OPC_SPECIAL,
OPC_SPECIAL3D_RESERVED = 0x3D | OPC_SPECIAL,
};
@@ -2412,6 +2413,14 @@ static void gen_cond_move(DisasContext *ctx, uint32_t opc,
tcg_gen_movcond_tl(TCG_COND_EQ, cpu_gpr[rd], t0, t1, t2, cpu_gpr[rd]);
opn = "movz";
break;
+ case OPC_SELNEZ:
+ tcg_gen_movcond_tl(TCG_COND_NE, cpu_gpr[rd], t0, t1, t2, t1);
+ opn = "selnez";
+ break;
+ case OPC_SELEQZ:
+ tcg_gen_movcond_tl(TCG_COND_EQ, cpu_gpr[rd], t0, t1, t2, t1);
+ opn = "seleqz";
+ break;
}
tcg_temp_free(t2);
tcg_temp_free(t1);
@@ -14533,6 +14542,11 @@ static void decode_opc (CPUMIPSState *env, DisasContext *ctx)
INSN_LOONGSON2E | INSN_LOONGSON2F);
gen_cond_move(ctx, op1, rd, rs, rt);
break;
+ case OPC_SELEQZ:
+ case OPC_SELNEZ:
+ check_insn(ctx, ISA_MIPS32R6);
+ gen_cond_move(ctx, op1, rd, rs, rt);
+ break;
case OPC_ADD ... OPC_SUBU:
gen_arith(ctx, op1, rd, rs, rt);
break;