/* tc-i386.c -- Assemble Intel syntax code for ix86/x86-64
- Copyright 2009, 2010
- Free Software Foundation, Inc.
+ Copyright (C) 2009-2019 Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
int has_offset; /* 1 if operand has offset. */
unsigned int in_offset; /* >=1 if processing operand of offset. */
unsigned int in_bracket; /* >=1 if processing operand in brackets. */
- unsigned int in_scale; /* >=1 if processing multipication operand
+ unsigned int in_scale; /* >=1 if processing multiplication operand
* in brackets. */
i386_operand_type reloc_types; /* Value obtained from lex_got(). */
const reg_entry *base; /* Base register (if any). */
for (j = 0; i386_types[j].name; ++j)
if (strcasecmp (i386_types[j].name, name) == 0)
break;
+
if (i386_types[j].name && *pc == ' ')
{
- char *pname = ++input_line_pointer;
- char c = get_symbol_end ();
+ char *pname;
+ char c;
+
+ ++input_line_pointer;
+ c = get_symbol_name (&pname);
if (strcasecmp (pname, "ptr") == 0)
{
+ /* FIXME: What if c == '"' ? */
pname[-1] = *pc;
*pc = c;
if (intel_syntax > 0 || operands != 1)
return i386_types[j].op;
}
- *input_line_pointer = c;
+ (void) restore_line_pointer (c);
input_line_pointer = pname - 1;
}
else
reg_num = e->X_md - 1;
+ if (reg_num < 0 || reg_num >= (int) i386_regtab_size)
+ {
+ as_bad (_("invalid register number"));
+ return 0;
+ }
+
if (!intel_state.in_bracket)
{
if (i.op[this_operand].regs)
i.op[this_operand].regs = i386_regtab + reg_num;
}
else if (!intel_state.index
- && (i386_regtab[reg_num].reg_type.bitfield.regxmm
- || i386_regtab[reg_num].reg_type.bitfield.regymm
- || i386_regtab[reg_num].reg_type.bitfield.regzmm))
+ && (i386_regtab[reg_num].reg_type.bitfield.xmmword
+ || i386_regtab[reg_num].reg_type.bitfield.ymmword
+ || i386_regtab[reg_num].reg_type.bitfield.zmmword
+ || i386_regtab[reg_num].reg_num == RegIZ))
intel_state.index = i386_regtab + reg_num;
else if (!intel_state.base && !intel_state.in_scale)
intel_state.base = i386_regtab + reg_num;
intel_state.index))
return 0;
if (!intel_state.in_offset)
- intel_state.seg = e->X_add_symbol;
+ {
+ if (!intel_state.seg)
+ intel_state.seg = e->X_add_symbol;
+ else
+ {
+ expressionS exp;
+
+ exp.X_op = O_full_ptr;
+ exp.X_add_symbol = e->X_add_symbol;
+ exp.X_op_symbol = intel_state.seg;
+ intel_state.seg = make_expr_symbol (&exp);
+ }
+ }
i386_intel_fold (e, e->X_op_symbol);
break;
if (this_operand >= 0 && intel_state.in_bracket)
{
expressionS *scale = NULL;
-
- if (intel_state.index)
- --scale;
+ int has_index = (intel_state.index != NULL);
if (!intel_state.in_scale++)
intel_state.scale_factor = 1;
ret = i386_intel_simplify_symbol (e->X_add_symbol);
- if (ret && !scale && intel_state.index)
+ if (ret && !has_index && intel_state.index)
scale = symbol_get_value_expression (e->X_op_symbol);
if (ret)
ret = i386_intel_simplify_symbol (e->X_op_symbol);
- if (ret && !scale && intel_state.index)
+ if (ret && !scale && !has_index && intel_state.index)
scale = symbol_get_value_expression (e->X_add_symbol);
- if (ret && scale && (scale + 1))
+ if (ret && scale)
{
resolve_expression (scale);
if (scale->X_op != O_constant
- || intel_state.index->reg_type.bitfield.reg16)
+ || intel_state.index->reg_type.bitfield.word)
scale->X_add_number = 0;
intel_state.scale_factor *= scale->X_add_number;
}
if (!is_end_of_line[(unsigned char) *input_line_pointer])
{
- as_bad (_("junk `%s' after expression"), input_line_pointer);
+ if (ret)
+ as_bad (_("junk `%s' after expression"), input_line_pointer);
ret = 0;
}
else if (exp.X_op == O_illegal || exp.X_op == O_absent)
{
- as_bad (_("invalid expression"));
+ if (ret)
+ as_bad (_("invalid expression"));
ret = 0;
}
else if (!intel_state.has_offset
case O_oword_ptr:
case O_xmmword_ptr:
i.types[this_operand].bitfield.xmmword = 1;
- suffix = XMMWORD_MNEM_SUFFIX;
break;
case O_ymmword_ptr:
i.types[this_operand].bitfield.ymmword = 1;
- suffix = YMMWORD_MNEM_SUFFIX;
break;
case O_zmmword_ptr:
i.types[this_operand].bitfield.zmmword = 1;
- suffix = ZMMWORD_MNEM_SUFFIX;
break;
case O_far_ptr:
|| intel_state.is_mem)
{
/* Memory operand. */
+ if (i.mem_operands == 1 && !maybe_adjust_templates ())
+ return 0;
if ((int) i.mem_operands
>= 2 - !current_templates->start->opcode_modifier.isstring)
{
i.mem_operands = 0;
i.disp_operands = 0;
i.imm_operands = 2;
- i.types[0].bitfield.mem = 0;
+ i.flags[0] &= ~Operand_Mem;
i.types[0].bitfield.disp16 = 0;
i.types[0].bitfield.disp32 = 0;
i.types[0].bitfield.disp32s = 0;
return 0;
}
+ /* Swap base and index in 16-bit memory operands like
+ [si+bx]. Since i386_index_check is also used in AT&T
+ mode we have to do this here. */
+ if (intel_state.base
+ && intel_state.index
+ && intel_state.base->reg_type.bitfield.word
+ && intel_state.index->reg_type.bitfield.word
+ && intel_state.base->reg_num >= 6
+ && intel_state.index->reg_num < 6)
+ {
+ i.base_reg = intel_state.index;
+ i.index_reg = intel_state.base;
+ }
+ else
+ {
+ i.base_reg = intel_state.base;
+ i.index_reg = intel_state.index;
+ }
+
+ if (i.base_reg || i.index_reg)
+ i.types[this_operand].bitfield.baseindex = 1;
+
expP = &disp_expressions[i.disp_operands];
memcpy (expP, &exp, sizeof(exp));
resolve_expression (expP);
if (expP->X_op != O_constant
|| expP->X_add_number
- || (!intel_state.base
- && !intel_state.index))
+ || !i.types[this_operand].bitfield.baseindex)
{
i.op[this_operand].disps = expP;
i.disp_operands++;
+ i386_addressing_mode ();
+
if (flag_code == CODE_64BIT)
{
i.types[this_operand].bitfield.disp32 = 1;
return 0;
}
- if (intel_state.base || intel_state.index)
- i.types[this_operand].bitfield.baseindex = 1;
-
if (intel_state.seg)
{
- for (;;)
+ for (ret = check_none; ; ret = operand_check)
{
expP = symbol_get_value_expression (intel_state.seg);
- if (expP->X_op != O_full_ptr)
+ if (expP->X_op != O_full_ptr
+ || symbol_get_value_expression (expP->X_op_symbol)->X_op
+ != O_register)
break;
intel_state.seg = expP->X_add_symbol;
}
as_bad (_("invalid use of register"));
return 0;
}
+ switch (ret)
+ {
+ case check_error:
+ as_bad (_("redundant segment overrides"));
+ return 0;
+ case check_warning:
+ as_warn (_("redundant segment overrides"));
+ break;
+ }
switch (i386_regtab[expP->X_add_number].reg_num)
{
case 0: i.seg[i.mem_operands] = &es; break;
}
}
- /* Swap base and index in 16-bit memory operands like
- [si+bx]. Since i386_index_check is also used in AT&T
- mode we have to do that here. */
- if (intel_state.base
- && intel_state.index
- && intel_state.base->reg_type.bitfield.reg16
- && intel_state.index->reg_type.bitfield.reg16
- && intel_state.base->reg_num >= 6
- && intel_state.index->reg_num < 6)
- {
- i.base_reg = intel_state.index;
- i.index_reg = intel_state.base;
- }
- else
- {
- i.base_reg = intel_state.base;
- i.index_reg = intel_state.index;
- }
-
if (!i386_index_check (operand_string))
return 0;
- i.types[this_operand].bitfield.mem = 1;
+ i.flags[this_operand] |= Operand_Mem;
+ if (i.mem_operands == 0)
+ i.memop1_string = xstrdup (operand_string);
++i.mem_operands;
}
else
projects / deliverable / binutils-gdb.git / blobdiff