translate.c.svn-base

我们自己开发的一个OSEK操作系统！不知道可不可以？

		modename[i++] = 'w';
	if (mode & 2)
		modename[i++] = 'b';
	if (mode & 1)
		modename[i++] = 'r';
	modename[i++] = 0;
	return modename;
}
#endif

static unsigned int dec_swap_r(DisasContext *dc)
{
	DIS(char modename[4]);
	DIS(fprintf (logfile, "swap%s $r%u\n",
		     swapmode_name(dc->op2, modename), dc->op1));

	cris_cc_mask(dc, CC_MASK_NZ);
	gen_movl_T0_reg[dc->op1]();
	if (dc->op2 & 8)
		gen_op_not_T0_T0();
	if (dc->op2 & 4)
		gen_op_swapw_T0_T0();
	if (dc->op2 & 2)
		gen_op_swapb_T0_T0();
	if (dc->op2 & 1)
		gen_op_swapr_T0_T0();
	gen_op_movl_T1_T0();
	crisv32_alu_op(dc, CC_OP_MOVE, dc->op1, 4);
	return 2;
}

static unsigned int dec_or_r(DisasContext *dc)
{
	int size = memsize_zz(dc);
	DIS(fprintf (logfile, "or.%c $r%u, $r%u\n",
		    memsize_char(size), dc->op1, dc->op2));
	cris_cc_mask(dc, CC_MASK_NZ);
	dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
	crisv32_alu_op(dc, CC_OP_OR, dc->op2, size);
	return 2;
}

static unsigned int dec_addi_r(DisasContext *dc)
{
	DIS(fprintf (logfile, "addi.%c $r%u, $r%u\n",
		    memsize_char(memsize_zz(dc)), dc->op2, dc->op1));
	cris_cc_mask(dc, 0);
	dec_prep_alu_r(dc, dc->op1, dc->op2, 4, 0);
	gen_op_lsll_T0_im(dc->zzsize);
	gen_op_addl_T0_T1();
	gen_movl_reg_T0[dc->op1]();
	return 2;
}

static unsigned int dec_addi_acr(DisasContext *dc)
{
	DIS(fprintf (logfile, "addi.%c $r%u, $r%u, $acr\n",
		    memsize_char(memsize_zz(dc)), dc->op2, dc->op1));
	cris_cc_mask(dc, 0);
	dec_prep_alu_r(dc, dc->op1, dc->op2, 4, 0);
	gen_op_lsll_T0_im(dc->zzsize);
	gen_op_addl_T0_T1();
	gen_movl_reg_T0[REG_ACR]();
	return 2;
}

static unsigned int dec_neg_r(DisasContext *dc)
{
	int size = memsize_zz(dc);
	DIS(fprintf (logfile, "neg.%c $r%u, $r%u\n",
		    memsize_char(size), dc->op1, dc->op2));
	cris_cc_mask(dc, CC_MASK_NZVC);
	dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
	crisv32_alu_op(dc, CC_OP_NEG, dc->op2, size);
	return 2;
}

static unsigned int dec_btst_r(DisasContext *dc)
{
	DIS(fprintf (logfile, "btst $r%u, $r%u\n",
		    dc->op1, dc->op2));
	cris_evaluate_flags(dc);
	cris_cc_mask(dc, CC_MASK_NZ);
	dec_prep_alu_r(dc, dc->op1, dc->op2, 4, 0);
	crisv32_alu_op(dc, CC_OP_BTST, dc->op2, 4);

	cris_update_cc_op(dc, CC_OP_FLAGS);
	gen_op_movl_flags_T0();
	dc->flags_live = 1;
	return 2;
}

static unsigned int dec_sub_r(DisasContext *dc)
{
	int size = memsize_zz(dc);
	DIS(fprintf (logfile, "sub.%c $r%u, $r%u\n",
		    memsize_char(size), dc->op1, dc->op2));
	cris_cc_mask(dc, CC_MASK_NZVC);
	dec_prep_alu_r(dc, dc->op1, dc->op2, size, 0);
	crisv32_alu_op(dc, CC_OP_SUB, dc->op2, size);
	return 2;
}

/* Zero extension. From size to dword.  */
static unsigned int dec_movu_r(DisasContext *dc)
{
	int size = memsize_z(dc);
	DIS(fprintf (logfile, "movu.%c $r%u, $r%u\n",
		    memsize_char(size),
		    dc->op1, dc->op2));

	cris_cc_mask(dc, CC_MASK_NZ);
	dec_prep_move_r(dc, dc->op1, dc->op2, size, 0);
	crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, 4);
	return 2;
}

/* Sign extension. From size to dword.  */
static unsigned int dec_movs_r(DisasContext *dc)
{
	int size = memsize_z(dc);
	DIS(fprintf (logfile, "movs.%c $r%u, $r%u\n",
		    memsize_char(size),
		    dc->op1, dc->op2));

	cris_cc_mask(dc, CC_MASK_NZ);
	gen_movl_T0_reg[dc->op1]();
	/* Size can only be qi or hi.  */
	gen_sext_T1_T0(size);
	crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, 4);
	return 2;
}

/* zero extension. From size to dword.  */
static unsigned int dec_addu_r(DisasContext *dc)
{
	int size = memsize_z(dc);
	DIS(fprintf (logfile, "addu.%c $r%u, $r%u\n",
		    memsize_char(size),
		    dc->op1, dc->op2));

	cris_cc_mask(dc, CC_MASK_NZVC);
	gen_movl_T0_reg[dc->op1]();
	/* Size can only be qi or hi.  */
	gen_zext_T1_T0(size);
	gen_movl_T0_reg[dc->op2]();
	crisv32_alu_op(dc, CC_OP_ADD, dc->op2, 4);
	return 2;
}
/* Sign extension. From size to dword.  */
static unsigned int dec_adds_r(DisasContext *dc)
{
	int size = memsize_z(dc);
	DIS(fprintf (logfile, "adds.%c $r%u, $r%u\n",
		    memsize_char(size),
		    dc->op1, dc->op2));

	cris_cc_mask(dc, CC_MASK_NZVC);
	gen_movl_T0_reg[dc->op1]();
	/* Size can only be qi or hi.  */
	gen_sext_T1_T0(size);
	gen_movl_T0_reg[dc->op2]();
	crisv32_alu_op(dc, CC_OP_ADD, dc->op2, 4);
	return 2;
}

/* Zero extension. From size to dword.  */
static unsigned int dec_subu_r(DisasContext *dc)
{
	int size = memsize_z(dc);
	DIS(fprintf (logfile, "subu.%c $r%u, $r%u\n",
		    memsize_char(size),
		    dc->op1, dc->op2));

	cris_cc_mask(dc, CC_MASK_NZVC);
	gen_movl_T0_reg[dc->op1]();
	/* Size can only be qi or hi.  */
	gen_zext_T1_T0(size);
	gen_movl_T0_reg[dc->op2]();
	crisv32_alu_op(dc, CC_OP_SUB, dc->op2, 4);
	return 2;
}

/* Sign extension. From size to dword.  */
static unsigned int dec_subs_r(DisasContext *dc)
{
	int size = memsize_z(dc);
	DIS(fprintf (logfile, "subs.%c $r%u, $r%u\n",
		    memsize_char(size),
		    dc->op1, dc->op2));

	cris_cc_mask(dc, CC_MASK_NZVC);
	gen_movl_T0_reg[dc->op1]();
	/* Size can only be qi or hi.  */
	gen_sext_T1_T0(size);
	gen_movl_T0_reg[dc->op2]();
	crisv32_alu_op(dc, CC_OP_SUB, dc->op2, 4);
	return 2;
}

static unsigned int dec_setclrf(DisasContext *dc)
{
	uint32_t flags;
	int set = (~dc->opcode >> 2) & 1;

	flags = (EXTRACT_FIELD(dc->ir, 12, 15) << 4)
		| EXTRACT_FIELD(dc->ir, 0, 3);
	DIS(fprintf (logfile, "set=%d flags=%x\n", set, flags));
	if (set && flags == 0)
		DIS(fprintf (logfile, "nop\n"));
	else if (!set && (flags & 0x20))
		DIS(fprintf (logfile, "di\n"));
	else
		DIS(fprintf (logfile, "%sf %x\n",
			    set ? "set" : "clr",
			    flags));

	if (set && (flags & X_FLAG)) {
		dc->flagx_live = 1;
		dc->flags_x = 1;
	}

	/* Simply decode the flags.  */
	cris_evaluate_flags (dc);
	cris_update_cc_op(dc, CC_OP_FLAGS);
	if (set)
		gen_op_setf (flags);
	else
		gen_op_clrf (flags);
	dc->flags_live = 1;
	return 2;
}

static unsigned int dec_move_rs(DisasContext *dc)
{
	DIS(fprintf (logfile, "move $r%u, $s%u\n", dc->op1, dc->op2));
	cris_cc_mask(dc, 0);
	gen_movl_T0_reg[dc->op1]();
	gen_op_movl_sreg_T0(dc->op2);

	if (dc->op2 == 5) /* srs is checked at runtime.  */
		gen_op_movl_tlb_lo_T0();
	return 2;
}
static unsigned int dec_move_sr(DisasContext *dc)
{
	DIS(fprintf (logfile, "move $s%u, $r%u\n", dc->op1, dc->op2));
	cris_cc_mask(dc, 0);
	gen_op_movl_T0_sreg(dc->op1);
	gen_op_movl_T1_T0();
	crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, 4);
	return 2;
}
static unsigned int dec_move_rp(DisasContext *dc)
{
	DIS(fprintf (logfile, "move $r%u, $p%u\n", dc->op1, dc->op2));
	cris_cc_mask(dc, 0);
	gen_movl_T0_reg[dc->op1]();
	gen_op_movl_T1_T0();
	gen_movl_preg_T0[dc->op2]();
	return 2;
}
static unsigned int dec_move_pr(DisasContext *dc)
{
	DIS(fprintf (logfile, "move $p%u, $r%u\n", dc->op1, dc->op2));
	cris_cc_mask(dc, 0);
	gen_movl_T0_preg[dc->op2]();
	gen_op_movl_T1_T0();
	crisv32_alu_op(dc, CC_OP_MOVE, dc->op1, preg_sizes[dc->op2]);
	return 2;
}

static unsigned int dec_move_mr(DisasContext *dc)
{
	int memsize = memsize_zz(dc);
	int insn_len;
	DIS(fprintf (logfile, "move.%c [$r%u%s, $r%u\n",
		    memsize_char(memsize),
		    dc->op1, dc->postinc ? "+]" : "]",
		    dc->op2));

	cris_cc_mask(dc, CC_MASK_NZ);
	insn_len = dec_prep_alu_m(dc, 0, memsize);
	crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, memsize);
	do_postinc(dc, memsize);
	return insn_len;
}

static unsigned int dec_movs_m(DisasContext *dc)
{
	int memsize = memsize_z(dc);
	int insn_len;
	DIS(fprintf (logfile, "movs.%c [$r%u%s, $r%u\n",
		    memsize_char(memsize),
		    dc->op1, dc->postinc ? "+]" : "]",
		    dc->op2));

	/* sign extend.  */
	cris_cc_mask(dc, CC_MASK_NZ);
	insn_len = dec_prep_alu_m(dc, 1, memsize);
	crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, 4);
	do_postinc(dc, memsize);
	return insn_len;
}

static unsigned int dec_addu_m(DisasContext *dc)
{
	int memsize = memsize_z(dc);
	int insn_len;
	DIS(fprintf (logfile, "addu.%c [$r%u%s, $r%u\n",
		    memsize_char(memsize),
		    dc->op1, dc->postinc ? "+]" : "]",
		    dc->op2));

	/* sign extend.  */
	cris_cc_mask(dc, CC_MASK_NZVC);
	insn_len = dec_prep_alu_m(dc, 0, memsize);
	crisv32_alu_op(dc, CC_OP_ADD, dc->op2, 4);
	do_postinc(dc, memsize);
	return insn_len;
}

static unsigned int dec_adds_m(DisasContext *dc)
{
	int memsize = memsize_z(dc);
	int insn_len;
	DIS(fprintf (logfile, "adds.%c [$r%u%s, $r%u\n",
		    memsize_char(memsize),
		    dc->op1, dc->postinc ? "+]" : "]",
		    dc->op2));

	/* sign extend.  */
	cris_cc_mask(dc, CC_MASK_NZVC);
	insn_len = dec_prep_alu_m(dc, 1, memsize);
	crisv32_alu_op(dc, CC_OP_ADD, dc->op2, 4);
	do_postinc(dc, memsize);
	return insn_len;
}

static unsigned int dec_subu_m(DisasContext *dc)
{
	int memsize = memsize_z(dc);
	int insn_len;
	DIS(fprintf (logfile, "subu.%c [$r%u%s, $r%u\n",
		    memsize_char(memsize),
		    dc->op1, dc->postinc ? "+]" : "]",
		    dc->op2));

	/* sign extend.  */
	cris_cc_mask(dc, CC_MASK_NZVC);
	insn_len = dec_prep_alu_m(dc, 0, memsize);
	crisv32_alu_op(dc, CC_OP_SUB, dc->op2, 4);
	do_postinc(dc, memsize);
	return insn_len;
}

static unsigned int dec_subs_m(DisasContext *dc)
{
	int memsize = memsize_z(dc);
	int insn_len;
	DIS(fprintf (logfile, "subs.%c [$r%u%s, $r%u\n",
		    memsize_char(memsize),
		    dc->op1, dc->postinc ? "+]" : "]",
		    dc->op2));

	/* sign extend.  */
	cris_cc_mask(dc, CC_MASK_NZVC);
	insn_len = dec_prep_alu_m(dc, 1, memsize);
	crisv32_alu_op(dc, CC_OP_SUB, dc->op2, 4);
	do_postinc(dc, memsize);
	return insn_len;
}

static unsigned int dec_movu_m(DisasContext *dc)
{
	int memsize = memsize_z(dc);
	int insn_len;

	DIS(fprintf (logfile, "movu.%c [$r%u%s, $r%u\n",
		    memsize_char(memsize),
		    dc->op1, dc->postinc ? "+]" : "]",
		    dc->op2));

	cris_cc_mask(dc, CC_MASK_NZ);
	insn_len = dec_prep_alu_m(dc, 0, memsize);
	crisv32_alu_op(dc, CC_OP_MOVE, dc->op2, 4);
	do_postinc(dc, memsize);
	return insn_len;
}

static unsigned int dec_cmpu_m(DisasContext *dc)
{
	int memsize = memsize_z(dc);
	int insn_len;
	DIS(fprintf (logfile, "cmpu.%c [$r%u%s, $r%u\n",
		    memsize_char(memsize),
		    dc->op1, dc->postinc ? "+]" : "]",
		    dc->op2));

	cris_cc_mask(dc, CC_MASK_NZVC);
	insn_len = dec_prep_alu_m(dc, 0, memsize);
	crisv32_alu_op(dc, CC_OP_CMP, dc->op2, 4);
	do_postinc(dc, memsize);
	return insn_len;
}

static unsigned int dec_cmps_m(DisasContext *dc)
{
	int memsize = memsize_z(dc);
	int insn_len;
	DIS(fprintf (logfile, "cmps.%c [$r%u%s, $r%u\n",
		    memsize_char(memsize),
		    dc->op1, dc->postinc ? "+]" : "]",
		    dc->op2));

	cris_cc_mask(dc, CC_MASK_NZVC);
	insn_len = dec_prep_alu_m(dc, 1, memsize);
	crisv32_alu_op(dc, CC_OP_CMP, dc->op2, memsize_zz(dc));
	do_postinc(dc, memsize);
	return insn_len;
}

static unsigned int dec_cmp_m(DisasContext *dc)
{
	int memsize = memsize_zz(dc);
	int insn_len;
	DIS(fprintf (logfile, "cmp.%c [$r%u%s, $r%u\n",
		    memsize_char(memsize),
		    dc->op1, dc->postinc ? "+]" : "]",
		    dc->op2));

	cris_cc_mask(dc, CC_MASK_NZVC);
	insn_len = dec_prep_alu_m(dc, 0, memsize);
	crisv32_alu_op(dc, CC_OP_CMP, dc->op2, memsize_zz(dc));
	do_postinc(dc, memsize);
	return insn_len;
}

static unsigned int dec_test_m(DisasContext *dc)
{
	int memsize = memsize_zz(dc);
	int insn_len;
	DIS(fprintf (logfile, "test.%d [$r%u%s] op2=%x\n",
		    memsize_char(memsize),
		    dc->op1, dc->postinc ? "+]" : "]",
		    dc->op2));

	cris_cc_mask(dc, CC_MASK_NZ);
	gen_op_clrf(3);
	insn_len = dec_prep_alu_m(dc, 0, memsize);
	gen_op_swp_T0_T1();
	gen_op_movl_T1_im(0);
	crisv32_alu_op(dc, CC_OP_CMP, dc->op2, memsize_zz(dc));
	do_postinc(dc, memsize);
	return insn_len;
}

static unsigned int dec_and_m(DisasContext *dc)
{
	int memsize = memsize_zz(dc);
	int insn_len;
	DIS(fprintf (logfile, "and.%d [$r%u%s, $r%u\n",
		    memsize_char(memsize),
		    dc->op1, dc->postinc ? "+]" : "]",
		    dc->op2));

	cris_cc_mask(dc, CC_MASK_NZ);
	insn_len = dec_prep_alu_m(dc, 0, memsize);
	crisv32_alu_op(dc, CC_OP_AND, dc->op2, memsize_zz(dc));
	do_postinc(dc, memsize);
	return insn_len;
}

static unsigned int dec_add_m(DisasContext *dc)
{
	int memsize = memsize_zz(dc);
	int insn_len;
	DIS(fprintf (logfile, "add.%d [$r%u%s, $r%u\n",
		    memsize_char(memsize),
		    dc->op1, dc->postinc ? "+]" : "]",
		    dc->op2));

	cris_cc_mask(dc, CC_MASK_NZVC);
	insn_len = dec_prep_alu_m(dc, 0, memsize);
	crisv32_alu_op(dc, CC_OP_ADD, dc->op2, memsize_zz(dc));
	do_postinc(dc, memsize);
	return insn_len;
}

static unsigned int dec_addo_m(DisasContext *dc)
{
	int memsize = memsize_zz(dc);
	int insn_len;
	DIS(fprintf (logfile, "add.%d [$r%u%s, $r%u\n",
		    memsize_char(memsize),
		    dc->op1, dc->postinc ? "+]" : "]",
		    dc->op2));

	cris_cc_mask(dc, 0);
	insn_len = dec_prep_alu_m(dc, 1, memsize);
	crisv32_alu_op(dc, CC_OP_ADD, REG_ACR, 4);
	do_postinc(dc, memsize);
	return insn_len;
}

static unsigned int dec_bound_m(DisasContext *dc)
{
	int memsize = memsize_zz(dc);
	int insn_len;
	DIS(fprintf (logfile, "bound.%d [$r%u%s, $r%u\n",
		    memsize_char(memsize),
		    dc->op1, dc->postinc ? "+]" : "]",
		    dc->op2));

	cris_cc_mask(dc, CC_MASK_NZ);
	insn_len = dec_prep_alu_m(dc, 0, memsize);
	crisv32_alu_op(dc, CC_OP_BOUND, dc->op2, 4);
	do_postinc(dc, memsize);
	return insn_len;
}

static unsigned int dec_addc_mr(DisasContext *dc)
{
	int insn_len = 2;
	DIS(fprintf (logfile, "addc [$r%u%s, $r%u\n",
		    dc->op1, dc->postinc ? "+]" : "]",
		    dc->op2));

	cris_evaluate_flags(dc);
	cris_cc_mask(dc, CC_MASK_NZVC);
	insn_len = dec_prep_alu_m(dc, 0, 4);
	crisv32_alu_op(dc, CC_OP_ADDC, dc->op2, 4);
	do_postinc(dc, 4);
	return insn_len;
}

static unsigned int dec_sub_m(DisasContext *dc)
{
	int memsize = memsize_zz(dc);
	int insn_len;
	DIS(fprintf (logfile, "sub.%c [$r%u%s, $r%u ir=%x zz=%x\n",
		    memsize_char(memsize),
		    dc->op1, dc->postinc ? "+]" : "]",
		    dc->op2, dc->ir, dc->zzsize));

	cris_cc_mask(dc, CC_MASK_NZVC);
	insn_len = dec_prep_alu_m(dc, 0, memsize);
	crisv32_alu_op(dc, CC_OP_SUB, dc->op2, memsize);
	do_postinc(dc, memsize);
	return insn_len;
}

static unsigned int dec_or_m(DisasContext *dc)
{
	int memsize = memsize_zz(dc);
	int insn_len;
	DIS(fprintf (logfile, "or.%d [$r%u%s, $r%u pc=%x\n",
		    memsize_char(memsize),
		    dc->op1, dc->postinc ? "+]" : "]",
		    dc->op2, dc->pc));

	cris_cc_mask(dc, CC_MASK_NZ);
	insn_len = dec_prep_alu_m(dc, 0, memsize);
	crisv32_alu_op(dc, CC_OP_OR, dc->op2, memsize_zz(dc));
	do_postinc(dc, memsize);
	return insn_len;
}

static unsigned int dec_move_mp(DisasContext *dc)
{
	int memsize = memsize_zz(dc);
	int insn_len = 2;

	DIS(fprintf (logfile, "move.%c [$r%u%s, $p%u\n",
		    memsize_char(memsize),
		    dc->op1,
		    dc->postinc ? "+]" : "]",
		    dc->op2));

	cris_cc_mask(dc, 0);
	insn_len = dec_prep_alu_m(dc, 0, memsize);
	gen_op_movl_T0_T1();
	gen_movl_preg_T0[dc->op2]();

	do_postinc(dc, memsize);
	return insn_len;
}

static unsigned int dec_move_pm(DisasContext *dc)
{
	int memsize;

	memsize = preg_sizes[dc->op2];

	DIS(fprintf (logfile, "move.%d $p%u, [$r%u%s\n",
		     memsize, dc->op2, dc->op1, dc->postinc ? "+]" : "]"));

	cris_cc_mask(dc, 0);
	/* prepare store.  */
	gen_movl_T0_preg[dc->op2]();
	gen_op_movl_T1_T0();
	gen_movl_T0_reg[dc->op1]();
	gen_store_T0_T1(dc, memsize);
	if (dc->postinc)
	{
		gen_op_addl_T0_im(memsize);
		gen_movl_reg_T0[dc->op1]();
	}
	return 2;
}

static unsigned int dec_movem_mr(DisasContext *dc)
{
	int i;

	DIS(fprintf (logfile, "movem [$r%u%s, $r%u\n", dc->op1,
		    dc->postinc ? "+]" : "]", dc->op2));

	cris_cc_mask(dc, 0);
	/* fetch the address into T1.  */
	gen_movl_T0_reg[dc->op1]();
	gen_op_movl_T1_T0();
	for (i = 0; i <= dc->op2; i++) {
		/* Perform the load onto regnum i. Always dword wide.  */
		gen_load_T0_T0(dc, 4, 0);
		gen_movl_reg_T0[i]();
		/* Update the address.  */