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crisv10: Prettify. 

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
This commit is contained in:
Edgar E. Iglesias 2010-02-15 23:39:48 +01:00
parent 6f57bbf48c
commit bf76bafa5a
1 changed files with 89 additions and 93 deletions
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182
target-cris/translate_v10.c
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@ -23,30 +23,30 @@
static const char *regnames_v10[] =
{
"$r0", "$r1", "$r2", "$r3",
"$r4", "$r5", "$r6", "$r7",
"$r8", "$r9", "$r10", "$r11",
"$r12", "$r13", "$sp", "$pc",
"$r0", "$r1", "$r2", "$r3",
"$r4", "$r5", "$r6", "$r7",
"$r8", "$r9", "$r10", "$r11",
"$r12", "$r13", "$sp", "$pc",
};
static const char *pregnames_v10[] =
{
"$bz", "$vr", "$p2", "$p3",
"$wz", "$ccr", "$p6-prefix", "$mof",
"$dz", "$ibr", "$irp", "$srp",
"$bar", "$dccr", "$brp", "$usp",
"$bz", "$vr", "$p2", "$p3",
"$wz", "$ccr", "$p6-prefix", "$mof",
"$dz", "$ibr", "$irp", "$srp",
"$bar", "$dccr", "$brp", "$usp",
};
/* We need this table to handle preg-moves with implicit width. */
static int preg_sizes_v10[] = {
1, /* bz. */
1, /* vr. */
1, /* pid. */
1, /* srs. */
2, /* wz. */
2, 2, 4,
4, 4, 4, 4,
4, 4, 4, 4,
1, /* bz. */
1, /* vr. */
1, /* pid. */
1, /* srs. */
2, /* wz. */
2, 2, 4,
4, 4, 4, 4,
4, 4, 4, 4,
};
static inline int dec10_size(unsigned int size)
@ -109,61 +109,61 @@ static unsigned int crisv10_post_memaddr(DisasContext *dc, unsigned int size)
static int dec10_prep_move_m(DisasContext *dc, int s_ext, int memsize,
TCGv dst)
{
unsigned int rs, rd;
uint32_t imm;
int is_imm;
int insn_len = 0;
unsigned int rs, rd;
uint32_t imm;
int is_imm;
int insn_len = 0;
rs = dc->src;
rd = dc->dst;
is_imm = rs == 15 && !(dc->tb_flags & PFIX_FLAG);
LOG_DIS("rs=%d rd=%d is_imm=%d mode=%d pfix=%d\n",
rs, rd, is_imm, dc->mode, dc->tb_flags & PFIX_FLAG);
rs = dc->src;
rd = dc->dst;
is_imm = rs == 15 && !(dc->tb_flags & PFIX_FLAG);
LOG_DIS("rs=%d rd=%d is_imm=%d mode=%d pfix=%d\n",
rs, rd, is_imm, dc->mode, dc->tb_flags & PFIX_FLAG);
/* Load [$rs] onto T1. */
if (is_imm) {
if (memsize != 4) {
if (s_ext) {
if (memsize == 1)
imm = ldsb_code(dc->pc + 2);
else
imm = ldsw_code(dc->pc + 2);
} else {
if (memsize == 1)
imm = ldub_code(dc->pc + 2);
else
imm = lduw_code(dc->pc + 2);
}
} else
imm = ldl_code(dc->pc + 2);
tcg_gen_movi_tl(dst, imm);
if (dc->mode == CRISV10_MODE_AUTOINC) {
insn_len += memsize;
if (memsize == 1)
insn_len++;
tcg_gen_addi_tl(cpu_R[15], cpu_R[15], insn_len);
}
} else {
TCGv addr;
addr = tcg_temp_new();
cris_flush_cc_state(dc);
crisv10_prepare_memaddr(dc, addr, memsize);
gen_load(dc, dst, addr, memsize, 0);
if (s_ext)
t_gen_sext(dst, dst, memsize);
/* Load [$rs] onto T1. */
if (is_imm) {
if (memsize != 4) {
if (s_ext) {
if (memsize == 1)
imm = ldsb_code(dc->pc + 2);
else
t_gen_zext(dst, dst, memsize);
insn_len += crisv10_post_memaddr(dc, memsize);
tcg_temp_free(addr);
}
imm = ldsw_code(dc->pc + 2);
} else {
if (memsize == 1)
imm = ldub_code(dc->pc + 2);
else
imm = lduw_code(dc->pc + 2);
}
} else
imm = ldl_code(dc->pc + 2);
if (dc->mode == CRISV10_MODE_INDIRECT && (dc->tb_flags & PFIX_FLAG)) {
dc->dst = dc->src;
tcg_gen_movi_tl(dst, imm);
if (dc->mode == CRISV10_MODE_AUTOINC) {
insn_len += memsize;
if (memsize == 1)
insn_len++;
tcg_gen_addi_tl(cpu_R[15], cpu_R[15], insn_len);
}
return insn_len;
} else {
TCGv addr;
addr = tcg_temp_new();
cris_flush_cc_state(dc);
crisv10_prepare_memaddr(dc, addr, memsize);
gen_load(dc, dst, addr, memsize, 0);
if (s_ext)
t_gen_sext(dst, dst, memsize);
else
t_gen_zext(dst, dst, memsize);
insn_len += crisv10_post_memaddr(dc, memsize);
tcg_temp_free(addr);
}
if (dc->mode == CRISV10_MODE_INDIRECT && (dc->tb_flags & PFIX_FLAG)) {
dc->dst = dc->src;
}
return insn_len;
}
static unsigned int dec10_quick_imm(DisasContext *dc)
@ -439,20 +439,18 @@ static void dec10_reg_mov_pr(DisasContext *dc)
static void dec10_reg_abs(DisasContext *dc)
{
TCGv t0;
TCGv t0;
LOG_DIS("abs $r%u, $r%u\n",
dc->src, dc->dst);
LOG_DIS("abs $r%u, $r%u\n", dc->src, dc->dst);
assert(dc->dst != 15);
t0 = tcg_temp_new();
tcg_gen_sari_tl(t0, cpu_R[dc->src], 31);
tcg_gen_xor_tl(cpu_R[dc->dst], cpu_R[dc->src], t0);
tcg_gen_sub_tl(t0, cpu_R[dc->dst], t0);
assert(dc->dst != 15);
t0 = tcg_temp_new();
tcg_gen_sari_tl(t0, cpu_R[dc->src], 31);
tcg_gen_xor_tl(cpu_R[dc->dst], cpu_R[dc->src], t0);
tcg_gen_sub_tl(t0, cpu_R[dc->dst], t0);
cris_alu(dc, CC_OP_MOVE,
cpu_R[dc->dst], cpu_R[dc->dst], t0, 4);
tcg_temp_free(t0);
cris_alu(dc, CC_OP_MOVE, cpu_R[dc->dst], cpu_R[dc->dst], t0, 4);
tcg_temp_free(t0);
}
static void dec10_reg_swap(DisasContext *dc)
@ -478,25 +476,24 @@ static void dec10_reg_swap(DisasContext *dc)
static void dec10_reg_scc(DisasContext *dc)
{
int cond = dc->dst;
int cond = dc->dst;
LOG_DIS("s%s $r%u\n",
cc_name(cond), dc->src);
LOG_DIS("s%s $r%u\n", cc_name(cond), dc->src);
if (cond != CC_A)
{
int l1;
if (cond != CC_A)
{
int l1;
gen_tst_cc (dc, cpu_R[dc->src], cond);
l1 = gen_new_label();
tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_R[dc->src], 0, l1);
tcg_gen_movi_tl(cpu_R[dc->src], 1);
gen_set_label(l1);
}
else
tcg_gen_movi_tl(cpu_R[dc->src], 1);
gen_tst_cc (dc, cpu_R[dc->src], cond);
l1 = gen_new_label();
tcg_gen_brcondi_tl(TCG_COND_EQ, cpu_R[dc->src], 0, l1);
tcg_gen_movi_tl(cpu_R[dc->src], 1);
gen_set_label(l1);
} else {
tcg_gen_movi_tl(cpu_R[dc->src], 1);
}
cris_cc_mask(dc, 0);
cris_cc_mask(dc, 0);
}
static unsigned int dec10_reg(DisasContext *dc)
@ -838,7 +835,6 @@ static void dec10_movem_m_r(DisasContext *dc)
tcg_gen_mov_tl(cpu_R[dc->src], t0);
}
if (!pfix && dc->mode == CRISV10_MODE_AUTOINC) {
tcg_gen_mov_tl(cpu_R[dc->src], addr);
}