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Convert subx 

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Blue Swirl 2009-05-10 10:38:34 +03:00
parent d4b0d46898
commit 2ca1d92b07
2 changed files with 50 additions and 31 deletions
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44
target-sparc/op_helper.c
View File

@ -972,6 +972,48 @@ static uint32_t compute_C_sub_xcc(void)
}
#endif
static uint32_t compute_all_subx(void)
{
uint32_t ret;
ret = get_NZ_icc(CC_DST);
ret |= get_C_sub_icc(CC_DST - CC_SRC2, CC_SRC);
ret |= get_C_sub_icc(CC_DST, CC_SRC2);
ret |= get_V_sub_icc(CC_DST, CC_SRC, CC_SRC2);
return ret;
}
static uint32_t compute_C_subx(void)
{
uint32_t ret;
ret = get_C_sub_icc(CC_DST - CC_SRC2, CC_SRC);
ret |= get_C_sub_icc(CC_DST, CC_SRC2);
return ret;
}
#ifdef TARGET_SPARC64
static uint32_t compute_all_subx_xcc(void)
{
uint32_t ret;
ret = get_NZ_xcc(CC_DST);
ret |= get_C_sub_xcc(CC_DST - CC_SRC2, CC_SRC);
ret |= get_C_sub_xcc(CC_DST, CC_SRC2);
ret |= get_V_sub_xcc(CC_DST, CC_SRC, CC_SRC2);
return ret;
}
static uint32_t compute_C_subx_xcc(void)
{
uint32_t ret;
ret = get_C_sub_xcc(CC_DST - CC_SRC2, CC_SRC);
ret |= get_C_sub_xcc(CC_DST, CC_SRC2);
return ret;
}
#endif
static uint32_t compute_all_logic(void)
{
return get_NZ_icc(CC_DST);
@ -1000,6 +1042,7 @@ static const CCTable icc_table[CC_OP_NB] = {
[CC_OP_ADD] = { compute_all_add, compute_C_add },
[CC_OP_ADDX] = { compute_all_addx, compute_C_addx },
[CC_OP_SUB] = { compute_all_sub, compute_C_sub },
[CC_OP_SUBX] = { compute_all_subx, compute_C_subx },
[CC_OP_LOGIC] = { compute_all_logic, compute_C_logic },
};
@ -1010,6 +1053,7 @@ static const CCTable xcc_table[CC_OP_NB] = {
[CC_OP_ADD] = { compute_all_add_xcc, compute_C_add_xcc },
[CC_OP_ADDX] = { compute_all_addx_xcc, compute_C_addx_xcc },
[CC_OP_SUB] = { compute_all_sub_xcc, compute_C_sub_xcc },
[CC_OP_SUBX] = { compute_all_subx_xcc, compute_C_subx_xcc },
[CC_OP_LOGIC] = { compute_all_logic_xcc, compute_C_logic },
};
#endif

37
target-sparc/translate.c
View File

@ -635,33 +635,14 @@ static inline void gen_op_sub_cc(TCGv dst, TCGv src1, TCGv src2)
tcg_gen_mov_tl(dst, cpu_cc_dst);
}
static inline void gen_op_subx_cc2(TCGv dst)
{
gen_cc_NZ_icc(cpu_cc_dst);
gen_cc_C_sub_icc(cpu_cc_dst, cpu_cc_src);
gen_cc_V_sub_icc(cpu_cc_dst, cpu_cc_src, cpu_cc_src2);
#ifdef TARGET_SPARC64
gen_cc_NZ_xcc(cpu_cc_dst);
gen_cc_C_sub_xcc(cpu_cc_dst, cpu_cc_src);
gen_cc_V_sub_xcc(cpu_cc_dst, cpu_cc_src, cpu_cc_src2);
#endif
tcg_gen_mov_tl(dst, cpu_cc_dst);
}
static inline void gen_op_subxi_cc(TCGv dst, TCGv src1, target_long src2)
{
tcg_gen_mov_tl(cpu_cc_src, src1);
tcg_gen_movi_tl(cpu_cc_src2, src2);
gen_mov_reg_C(cpu_tmp0, cpu_psr);
tcg_gen_sub_tl(cpu_cc_dst, cpu_cc_src, cpu_tmp0);
gen_cc_clear_icc();
gen_cc_C_sub_icc(cpu_cc_dst, cpu_cc_src);
#ifdef TARGET_SPARC64
gen_cc_clear_xcc();
gen_cc_C_sub_xcc(cpu_cc_dst, cpu_cc_src);
#endif
tcg_gen_subi_tl(cpu_cc_dst, cpu_cc_dst, src2);
gen_op_subx_cc2(dst);
tcg_gen_mov_tl(dst, cpu_cc_dst);
}
static inline void gen_op_subx_cc(TCGv dst, TCGv src1, TCGv src2)
@ -670,14 +651,8 @@ static inline void gen_op_subx_cc(TCGv dst, TCGv src1, TCGv src2)
tcg_gen_mov_tl(cpu_cc_src2, src2);
gen_mov_reg_C(cpu_tmp0, cpu_psr);
tcg_gen_sub_tl(cpu_cc_dst, cpu_cc_src, cpu_tmp0);
gen_cc_clear_icc();
gen_cc_C_sub_icc(cpu_cc_dst, cpu_cc_src);
#ifdef TARGET_SPARC64
gen_cc_clear_xcc();
gen_cc_C_sub_xcc(cpu_cc_dst, cpu_cc_src);
#endif
tcg_gen_sub_tl(cpu_cc_dst, cpu_cc_dst, cpu_cc_src2);
gen_op_subx_cc2(dst);
tcg_gen_mov_tl(dst, cpu_cc_dst);
}
static inline void gen_op_tsub_cc(TCGv dst, TCGv src1, TCGv src2)
@ -3263,8 +3238,8 @@ static void disas_sparc_insn(DisasContext * dc)
if (xop & 0x10) {
gen_helper_compute_psr();
gen_op_subxi_cc(cpu_dst, cpu_src1, simm);
tcg_gen_movi_i32(cpu_cc_op, CC_OP_FLAGS);
dc->cc_op = CC_OP_FLAGS;
tcg_gen_movi_i32(cpu_cc_op, CC_OP_SUBX);
dc->cc_op = CC_OP_SUBX;
} else {
gen_helper_compute_psr();
gen_mov_reg_C(cpu_tmp0, cpu_psr);
@ -3275,8 +3250,8 @@ static void disas_sparc_insn(DisasContext * dc)
if (xop & 0x10) {
gen_helper_compute_psr();
gen_op_subx_cc(cpu_dst, cpu_src1, cpu_src2);
tcg_gen_movi_i32(cpu_cc_op, CC_OP_FLAGS);
dc->cc_op = CC_OP_FLAGS;
tcg_gen_movi_i32(cpu_cc_op, CC_OP_SUBX);
dc->cc_op = CC_OP_SUBX;
} else {
gen_helper_compute_psr();
gen_mov_reg_C(cpu_tmp0, cpu_psr);