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提交 6f551262 编写于 作者: B blueswir1
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Use memory based registers in functions containing brconds 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4311 c046a42c-6fe2-441c-8c8c-71466251a162
上级 e0b8d65a
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Showing with 57 addition and 44 deletion
target-sparc/translate.c
浏览文件 @ 6f551262
......@@ -459,22 +459,24 @@ static inline void gen_tag_tv(TCGv src1, TCGv src2)
static inline void gen_op_add_cc(TCGv dst, TCGv src1, TCGv src2)
{
tcg_gen_mov_tl(cpu_cc_src, src1);
tcg_gen_mov_tl(cpu_cc_src2, src2);
tcg_gen_add_tl(dst, src1, src2);
gen_cc_clear_icc();
gen_cc_NZ_icc(dst);
gen_cc_C_add_icc(dst, cpu_cc_src);
gen_cc_V_add_icc(dst, cpu_cc_src, src2);
gen_cc_V_add_icc(dst, cpu_cc_src, cpu_cc_src2);
#ifdef TARGET_SPARC64
gen_cc_clear_xcc();
gen_cc_NZ_xcc(dst);
gen_cc_C_add_xcc(dst, cpu_cc_src);
gen_cc_V_add_xcc(dst, cpu_cc_src, src2);
gen_cc_V_add_xcc(dst, cpu_cc_src, cpu_cc_src2);
#endif
}
static inline void gen_op_addx_cc(TCGv dst, TCGv src1, TCGv src2)
{
tcg_gen_mov_tl(cpu_cc_src, src1);
tcg_gen_mov_tl(cpu_cc_src2, src2);
gen_mov_reg_C(cpu_tmp0, cpu_psr);
tcg_gen_add_tl(dst, src1, cpu_tmp0);
gen_cc_clear_icc();
......@@ -483,40 +485,42 @@ static inline void gen_op_addx_cc(TCGv dst, TCGv src1, TCGv src2)
gen_cc_clear_xcc();
gen_cc_C_add_xcc(dst, cpu_cc_src);
#endif
tcg_gen_add_tl(dst, dst, src2);
tcg_gen_add_tl(dst, dst, cpu_cc_src2);
gen_cc_NZ_icc(dst);
gen_cc_C_add_icc(dst, cpu_cc_src);
gen_cc_V_add_icc(dst, cpu_cc_src, src2);
gen_cc_V_add_icc(dst, cpu_cc_src, cpu_cc_src2);
#ifdef TARGET_SPARC64
gen_cc_NZ_xcc(dst);
gen_cc_C_add_xcc(dst, cpu_cc_src);
gen_cc_V_add_xcc(dst, cpu_cc_src, src2);
gen_cc_V_add_xcc(dst, cpu_cc_src, cpu_cc_src2);
#endif
}
static inline void gen_op_tadd_cc(TCGv dst, TCGv src1, TCGv src2)
{
tcg_gen_mov_tl(cpu_cc_src, src1);
tcg_gen_mov_tl(cpu_cc_src2, src2);
tcg_gen_add_tl(dst, src1, src2);
gen_cc_clear_icc();
gen_cc_NZ_icc(dst);
gen_cc_C_add_icc(dst, cpu_cc_src);
gen_cc_V_add_icc(dst, cpu_cc_src, src2);
gen_cc_V_tag(cpu_cc_src, src2);
gen_cc_V_add_icc(dst, cpu_cc_src, cpu_cc_src2);
gen_cc_V_tag(cpu_cc_src, cpu_cc_src2);
#ifdef TARGET_SPARC64
gen_cc_clear_xcc();
gen_cc_NZ_xcc(dst);
gen_cc_C_add_xcc(dst, cpu_cc_src);
gen_cc_V_add_xcc(dst, cpu_cc_src, src2);
gen_cc_V_add_xcc(dst, cpu_cc_src, cpu_cc_src2);
#endif
}
static inline void gen_op_tadd_ccTV(TCGv dst, TCGv src1, TCGv src2)
{
gen_tag_tv(src1, src2);
tcg_gen_mov_tl(cpu_cc_src, src1);
tcg_gen_mov_tl(cpu_cc_src2, src2);
gen_tag_tv(cpu_cc_src, cpu_cc_src2);
tcg_gen_add_tl(dst, src1, src2);
gen_add_tv(dst, cpu_cc_src, src2);
gen_add_tv(dst, cpu_cc_src, cpu_cc_src2);
gen_cc_clear_icc();
gen_cc_NZ_icc(dst);
gen_cc_C_add_icc(dst, cpu_cc_src);
......@@ -524,7 +528,7 @@ static inline void gen_op_tadd_ccTV(TCGv dst, TCGv src1, TCGv src2)
gen_cc_clear_xcc();
gen_cc_NZ_xcc(dst);
gen_cc_C_add_xcc(dst, cpu_cc_src);
gen_cc_V_add_xcc(dst, cpu_cc_src, src2);
gen_cc_V_add_xcc(dst, cpu_cc_src, cpu_cc_src2);
#endif
}
......@@ -619,22 +623,24 @@ static inline void gen_sub_tv(TCGv dst, TCGv src1, TCGv src2)
static inline void gen_op_sub_cc(TCGv dst, TCGv src1, TCGv src2)
{
tcg_gen_mov_tl(cpu_cc_src, src1);
tcg_gen_mov_tl(cpu_cc_src2, src2);
tcg_gen_sub_tl(dst, src1, src2);
gen_cc_clear_icc();
gen_cc_NZ_icc(dst);
gen_cc_C_sub_icc(cpu_cc_src, src2);
gen_cc_V_sub_icc(dst, cpu_cc_src, src2);
gen_cc_C_sub_icc(cpu_cc_src, cpu_cc_src2);
gen_cc_V_sub_icc(dst, cpu_cc_src, cpu_cc_src2);
#ifdef TARGET_SPARC64
gen_cc_clear_xcc();
gen_cc_NZ_xcc(dst);
gen_cc_C_sub_xcc(cpu_cc_src, src2);
gen_cc_V_sub_xcc(dst, cpu_cc_src, src2);
gen_cc_C_sub_xcc(cpu_cc_src, cpu_cc_src2);
gen_cc_V_sub_xcc(dst, cpu_cc_src, cpu_cc_src2);
#endif
}
static inline void gen_op_subx_cc(TCGv dst, TCGv src1, TCGv src2)
{
tcg_gen_mov_tl(cpu_cc_src, src1);
tcg_gen_mov_tl(cpu_cc_src2, src2);
gen_mov_reg_C(cpu_tmp0, cpu_psr);
tcg_gen_sub_tl(dst, src1, cpu_tmp0);
gen_cc_clear_icc();
......@@ -643,58 +649,59 @@ static inline void gen_op_subx_cc(TCGv dst, TCGv src1, TCGv src2)
gen_cc_clear_xcc();
gen_cc_C_sub_xcc(dst, cpu_cc_src);
#endif
tcg_gen_sub_tl(dst, dst, src2);
tcg_gen_sub_tl(dst, dst, cpu_cc_src2);
gen_cc_NZ_icc(dst);
gen_cc_C_sub_icc(dst, cpu_cc_src);
gen_cc_V_sub_icc(dst, cpu_cc_src, src2);
gen_cc_V_sub_icc(dst, cpu_cc_src, cpu_cc_src2);
#ifdef TARGET_SPARC64
gen_cc_NZ_xcc(dst);
gen_cc_C_sub_xcc(dst, cpu_cc_src);
gen_cc_V_sub_xcc(dst, cpu_cc_src, src2);
gen_cc_V_sub_xcc(dst, cpu_cc_src, cpu_cc_src2);
#endif
}
static inline void gen_op_tsub_cc(TCGv dst, TCGv src1, TCGv src2)
{
tcg_gen_mov_tl(cpu_cc_src, src1);
tcg_gen_mov_tl(cpu_cc_src2, src2);
tcg_gen_sub_tl(dst, src1, src2);
gen_cc_clear_icc();
gen_cc_NZ_icc(dst);
gen_cc_C_sub_icc(cpu_cc_src, src2);
gen_cc_V_sub_icc(dst, cpu_cc_src, src2);
gen_cc_V_tag(cpu_cc_src, src2);
gen_cc_C_sub_icc(cpu_cc_src, cpu_cc_src2);
gen_cc_V_sub_icc(dst, cpu_cc_src, cpu_cc_src2);
gen_cc_V_tag(cpu_cc_src, cpu_cc_src2);
#ifdef TARGET_SPARC64
gen_cc_clear_xcc();
gen_cc_NZ_xcc(dst);
gen_cc_C_sub_xcc(cpu_cc_src, src2);
gen_cc_V_sub_xcc(dst, cpu_cc_src, src2);
gen_cc_C_sub_xcc(cpu_cc_src, cpu_cc_src2);
gen_cc_V_sub_xcc(dst, cpu_cc_src, cpu_cc_src2);
#endif
}
static inline void gen_op_tsub_ccTV(TCGv dst, TCGv src1, TCGv src2)
{
gen_tag_tv(src1, src2);
tcg_gen_mov_tl(cpu_cc_src, src1);
tcg_gen_mov_tl(cpu_cc_src2, src2);
gen_tag_tv(cpu_cc_src, cpu_cc_src2);
tcg_gen_sub_tl(dst, src1, src2);
gen_sub_tv(dst, cpu_cc_src, src2);
gen_sub_tv(dst, cpu_cc_src, cpu_cc_src2);
gen_cc_clear_icc();
gen_cc_NZ_icc(dst);
gen_cc_C_sub_icc(cpu_cc_src, src2);
gen_cc_C_sub_icc(cpu_cc_src, cpu_cc_src2);
#ifdef TARGET_SPARC64
gen_cc_clear_xcc();
gen_cc_NZ_xcc(dst);
gen_cc_C_sub_xcc(cpu_cc_src, src2);
gen_cc_V_sub_xcc(dst, cpu_cc_src, src2);
gen_cc_C_sub_xcc(cpu_cc_src, cpu_cc_src2);
gen_cc_V_sub_xcc(dst, cpu_cc_src, cpu_cc_src2);
#endif
}
static inline void gen_op_mulscc(TCGv dst, TCGv src1, TCGv src2)
{
TCGv r_temp, r_temp2;
int l1, l2;
int l1;
l1 = gen_new_label();
l2 = gen_new_label();
r_temp = tcg_temp_new(TCG_TYPE_TL);
r_temp2 = tcg_temp_new(TCG_TYPE_I32);
......@@ -702,19 +709,18 @@ static inline void gen_op_mulscc(TCGv dst, TCGv src1, TCGv src2)
if (!(env->y & 1))
T1 = 0;
*/
tcg_gen_mov_tl(cpu_cc_src, src1);
tcg_gen_ld32u_tl(r_temp, cpu_env, offsetof(CPUSPARCState, y));
tcg_gen_trunc_tl_i32(r_temp2, r_temp);
tcg_gen_andi_i32(r_temp2, r_temp2, 0x1);
tcg_gen_brcond_i32(TCG_COND_EQ, r_temp2, tcg_const_i32(0), l1);
tcg_gen_mov_tl(cpu_cc_src2, src2);
tcg_gen_br(l2);
gen_set_label(l1);
tcg_gen_brcond_i32(TCG_COND_NE, r_temp2, tcg_const_i32(0), l1);
tcg_gen_movi_tl(cpu_cc_src2, 0);
gen_set_label(l2);
gen_set_label(l1);
// b2 = T0 & 1;
// env->y = (b2 << 31) | (env->y >> 1);
tcg_gen_trunc_tl_i32(r_temp2, src1);
tcg_gen_trunc_tl_i32(r_temp2, cpu_cc_src);
tcg_gen_andi_i32(r_temp2, r_temp2, 0x1);
tcg_gen_shli_i32(r_temp2, r_temp2, 31);
tcg_gen_ld_i32(cpu_tmp32, cpu_env, offsetof(CPUSPARCState, y));
......@@ -730,7 +736,7 @@ static inline void gen_op_mulscc(TCGv dst, TCGv src1, TCGv src2)
// T0 = (b1 << 31) | (T0 >> 1);
// src1 = T0;
tcg_gen_shli_tl(cpu_tmp0, cpu_tmp0, 31);
tcg_gen_shri_tl(cpu_cc_src, src1, 1);
tcg_gen_shri_tl(cpu_cc_src, cpu_cc_src, 1);
tcg_gen_or_tl(cpu_cc_src, cpu_cc_src, cpu_tmp0);
/* do addition and update flags */
......@@ -801,13 +807,15 @@ static inline void gen_op_sdivx(TCGv dst, TCGv src1, TCGv src2)
l1 = gen_new_label();
l2 = gen_new_label();
tcg_gen_mov_tl(cpu_cc_src, src1);
tcg_gen_mov_tl(cpu_cc_src2, src2);
gen_trap_ifdivzero_tl(src2);
tcg_gen_brcond_tl(TCG_COND_NE, src1, tcg_const_tl(INT64_MIN), l1);
tcg_gen_brcond_tl(TCG_COND_NE, src2, tcg_const_tl(-1), l1);
tcg_gen_brcond_tl(TCG_COND_NE, cpu_cc_src, tcg_const_tl(INT64_MIN), l1);
tcg_gen_brcond_tl(TCG_COND_NE, cpu_cc_src2, tcg_const_tl(-1), l1);
tcg_gen_movi_i64(dst, INT64_MIN);
tcg_gen_br(l2);
gen_set_label(l1);
tcg_gen_div_i64(dst, src1, src2);
tcg_gen_div_i64(dst, cpu_cc_src, cpu_cc_src2);
gen_set_label(l2);
}
#endif
......@@ -1958,7 +1966,8 @@ static void disas_sparc_insn(DisasContext * dc)
if (rs2 != 0) {
gen_movl_reg_TN(rs2, cpu_src2);
tcg_gen_add_tl(cpu_dst, cpu_src1, cpu_src2);
}
} else
tcg_gen_mov_tl(cpu_dst, cpu_src1);
}
cond = GET_FIELD(insn, 3, 6);
if (cond == 0x8) {
......@@ -2849,7 +2858,8 @@ static void disas_sparc_insn(DisasContext * dc)
if (rs2 != 0) {
gen_movl_reg_TN(rs2, cpu_src2);
tcg_gen_or_tl(cpu_dst, cpu_src1, cpu_src2);
}
} else
tcg_gen_mov_tl(cpu_dst, cpu_src1);
}
}
gen_movl_TN_reg(rd, cpu_dst);
......@@ -3885,7 +3895,8 @@ static void disas_sparc_insn(DisasContext * dc)
if (rs2) {
gen_movl_reg_TN(rs2, cpu_src2);
tcg_gen_add_tl(cpu_dst, cpu_src1, cpu_src2);
}
} else
tcg_gen_mov_tl(cpu_dst, cpu_src1);
}
tcg_gen_helper_0_0(helper_restore);
gen_mov_pc_npc(dc, cpu_cond);
......@@ -3904,7 +3915,8 @@ static void disas_sparc_insn(DisasContext * dc)
if (rs2) {
gen_movl_reg_TN(rs2, cpu_src2);
tcg_gen_add_tl(cpu_dst, cpu_src1, cpu_src2);
}
} else
tcg_gen_mov_tl(cpu_dst, cpu_src1);
}
switch (xop) {
case 0x38: /* jmpl */
......@@ -3995,7 +4007,8 @@ static void disas_sparc_insn(DisasContext * dc)
if (rs2 != 0) {
gen_movl_reg_TN(rs2, cpu_src2);
tcg_gen_add_tl(cpu_addr, cpu_src1, cpu_src2);
}
} else
tcg_gen_mov_tl(cpu_addr, cpu_src1);
}
if (xop < 4 || (xop > 7 && xop < 0x14 && xop != 0x0e) ||
(xop > 0x17 && xop <= 0x1d ) ||
......
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