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[PATCH 11/17] target/i386: add 60-67, 70-77 opcodes


From: Paolo Bonzini
Subject: [PATCH 11/17] target/i386: add 60-67, 70-77 opcodes
Date: Wed, 24 Aug 2022 19:32:44 +0200

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 target/i386/tcg/decode-new.c.inc | 30 +++++++++++++
 target/i386/tcg/emit.c.inc       | 77 ++++++++++++++++++++++++++++++++
 2 files changed, 107 insertions(+)

diff --git a/target/i386/tcg/decode-new.c.inc b/target/i386/tcg/decode-new.c.inc
index 586894e4ee..161a3b1554 100644
--- a/target/i386/tcg/decode-new.c.inc
+++ b/target/i386/tcg/decode-new.c.inc
@@ -462,6 +462,20 @@ static void decode_twobyte(DisasContext *s, CPUX86State 
*env, X86OpEntry *entry,
     }
 }
 
+static void decode_group_0x63(DisasContext *s, CPUX86State *env, X86OpEntry 
*entry, uint8_t *b)
+{
+    static X86OpEntry arpl = X86_OP_ENTRY2(ARPL, E,w, G,w, .special = 
X86_SPECIAL_ProtMode);
+    static X86OpEntry mov = X86_OP_ENTRY3(MOV, G,v, E,v, None, None);
+    static X86OpEntry movsxd = X86_OP_ENTRY3(MOVSXD, G,v, E,d, None, None);
+    if (!CODE64(s)) {
+        *entry = arpl;
+    } else if (REX_W(s)) {
+        *entry = movsxd;
+    } else {
+        *entry = mov;
+    }
+}
+
 static X86OpEntry A2_00_F7[16][8] = {
     {
         X86_OP_ENTRY2(ADD, E,b, G,b),
@@ -524,8 +538,24 @@ static X86OpEntry A2_00_F7[16][8] = {
         X86_OP_ENTRYr(PUSH, LoBits,d64),
     },
     {
+        X86_OP_ENTRY0(PUSHA, i64),
+        X86_OP_ENTRY0(POPA, i64),
+        X86_OP_ENTRY2(BOUND, G,v, M,a, i64),
+        X86_OP_GROUP0(0x63),
+        {},
+        {},
+        {},
+        {},
     },
     {
+        X86_OP_ENTRYr(Jcc, J,b),
+        X86_OP_ENTRYr(Jcc, J,b),
+        X86_OP_ENTRYr(Jcc, J,b),
+        X86_OP_ENTRYr(Jcc, J,b),
+        X86_OP_ENTRYr(Jcc, J,b),
+        X86_OP_ENTRYr(Jcc, J,b),
+        X86_OP_ENTRYr(Jcc, J,b),
+        X86_OP_ENTRYr(Jcc, J,b),
     },
     {
     },
diff --git a/target/i386/tcg/emit.c.inc b/target/i386/tcg/emit.c.inc
index a76d6820e1..cf606e74c7 100644
--- a/target/i386/tcg/emit.c.inc
+++ b/target/i386/tcg/emit.c.inc
@@ -177,6 +177,56 @@ static void gen_AND(DisasContext *s, CPUX86State *env, 
X86DecodedInsn *decode)
     gen_alu_op(s, OP_ANDL, decode->op[0].ot);
 }
 
+static void gen_ARPL(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
+{
+    TCGLabel *label1;
+    TCGv t0 = tcg_temp_local_new();
+    TCGv t1 = tcg_temp_local_new();
+    TCGv a0;
+
+    if (decode->op[0].alu_op_type == X86_ALU_MEM) {
+        a0 = tcg_temp_local_new();
+        tcg_gen_mov_tl(a0, s->A0);
+        decode->op[0].v = a0;
+    } else {
+        a0 = NULL;
+    }
+
+    gen_compute_eflags(s);
+    tcg_gen_andi_tl(cpu_cc_src, cpu_cc_src, ~CC_Z);
+
+    tcg_gen_mov_tl(t0, s->T0);
+    tcg_gen_andi_tl(s->T0, s->T0, 3);
+    tcg_gen_andi_tl(t1, s->T1, 3);
+    label1 = gen_new_label();
+    tcg_gen_brcond_tl(TCG_COND_GE, s->T0, t1, label1);
+    tcg_gen_andi_tl(t0, t0, ~3);
+    tcg_gen_or_tl(t0, t0, t1);
+    tcg_gen_ori_tl(cpu_cc_src, cpu_cc_src, CC_Z);
+    gen_set_label(label1);
+
+    /* Do writeback here due to temp locals.  */
+    decode->op[0].alu_op_type = X86_ALU_SKIP;
+    if (a0) {
+        gen_op_st_v(s, MO_16, t0, a0);
+        tcg_temp_free(a0);
+    } else {
+        gen_op_mov_reg_v(s, MO_16, decode->op[0].n, t0);
+    }
+    tcg_temp_free(t0);
+    tcg_temp_free(t1);
+}
+
+static void gen_BOUND(DisasContext *s, CPUX86State *env, X86DecodedInsn 
*decode)
+{
+    tcg_gen_trunc_tl_i32(s->tmp2_i32, s->T0);
+    if (decode->op[1].ot == MO_16) {
+        gen_helper_boundw(cpu_env, s->A0, s->tmp2_i32);
+    } else {
+        gen_helper_boundl(cpu_env, s->A0, s->tmp2_i32);
+    }
+}
+
 static void gen_DAA(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
 {
     gen_update_cc_op(s);
@@ -201,6 +251,23 @@ static void gen_INC(DisasContext *s, CPUX86State *env, 
X86DecodedInsn *decode)
     gen_alu_op(s, OP_INCL, decode->op[0].ot);
 }
 
+static void gen_Jcc(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
+{
+    target_ulong next_eip = s->pc - s->cs_base;
+    gen_bnd_jmp(s);
+    gen_jcc(s, decode->b & 0xf, decode->immediate, next_eip);
+}
+
+static void gen_MOV(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
+{
+    /* nothing to do! */
+}
+
+static void gen_MOVSXD(DisasContext *s, CPUX86State *env, X86DecodedInsn 
*decode)
+{
+    tcg_gen_ext32s_tl(s->T0, s->T0);
+}
+
 static void gen_OR(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
 {
     gen_alu_op(s, OP_ORL, decode->op[0].ot);
@@ -211,6 +278,11 @@ static void gen_PUSH(DisasContext *s, CPUX86State *env, 
X86DecodedInsn *decode)
     gen_push_v(s, decode->op[2].v);
 }
 
+static void gen_PUSHA(DisasContext *s, CPUX86State *env, X86DecodedInsn 
*decode)
+{
+   gen_pusha(s);
+}
+
 static void gen_POP(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
 {
     MemOp ot = gen_pop_T0(s);
@@ -218,6 +290,11 @@ static void gen_POP(DisasContext *s, CPUX86State *env, 
X86DecodedInsn *decode)
     gen_pop_update(s, ot);
 }
 
+static void gen_POPA(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
+{
+   gen_popa(s);
+}
+
 static void gen_SBB(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode)
 {
     gen_alu_op(s, OP_SBBL, decode->op[0].ot);
-- 
2.37.1





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