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* i386.c (md_assemble): Support 32bit address prefix.

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(i386_displacement): Likewise.
	(i386_index_check): Accept 32bit addressing in 64bit mode.
This commit is contained in:
Jan Hubicka 2002-02-11 12:00:54 +00:00
parent 85a33fe281
commit 7ecd2f8b9d
2 changed files with 47 additions and 14 deletions
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6
gas/ChangeLog
View File

@ -1,3 +1,9 @@
Mon Feb 11 12:59:29 CET 2002 Jan Hubicka <jh@suse.cz>
* i386.c (md_assemble): Support 32bit address prefix.
(i386_displacement): Likewise.
(i386_index_check): Accept 32bit addressing in 64bit mode.
2002-02-11 Alexandre Oliva <aoliva@redhat.com>
* config/tc-sh.c (dot): Removed unused function.

55
gas/config/tc-i386.c
View File

@ -1298,6 +1298,7 @@ md_assemble (line)
/* If we are in 16-bit mode, do not allow addr16 or data16.
Similarly, in 32-bit mode, do not allow addr32 or data32. */
if ((current_templates->start->opcode_modifier & (Size16 | Size32))
&& flag_code != CODE_64BIT
&& (((current_templates->start->opcode_modifier & Size32) != 0)
^ (flag_code == CODE_16BIT)))
{
@ -2263,6 +2264,14 @@ md_assemble (line)
return;
}
if (i.suffix != QWORD_MNEM_SUFFIX && (flag_code == CODE_64BIT)
&& !(i.tm.opcode_modifier & IgnoreSize)
&& (i.tm.opcode_modifier & JumpByte))
{
if (! add_prefix (ADDR_PREFIX_OPCODE))
return;
}
/* Set mode64 for an operand. */
if (i.suffix == QWORD_MNEM_SUFFIX
&& !(i.tm.opcode_modifier & NoRex64))
@ -2415,13 +2424,15 @@ md_assemble (line)
if (! i.index_reg)
{
/* Operand is just <disp> */
if ((flag_code == CODE_16BIT) ^ (i.prefix[ADDR_PREFIX] != 0))
if ((flag_code == CODE_16BIT) ^ (i.prefix[ADDR_PREFIX] != 0)
&& (flag_code != CODE_64BIT))
{
i.rm.regmem = NO_BASE_REGISTER_16;
i.types[op] &= ~Disp;
i.types[op] |= Disp16;
}
else if (flag_code != CODE_64BIT)
else if (flag_code != CODE_64BIT
|| (i.prefix[ADDR_PREFIX] != 0))
{
i.rm.regmem = NO_BASE_REGISTER;
i.types[op] &= ~Disp;
@ -3438,10 +3449,13 @@ i386_displacement (disp_start, disp_end)
#endif
int bigdisp = Disp32;
if ((flag_code == CODE_16BIT) ^ (i.prefix[ADDR_PREFIX] != 0))
bigdisp = Disp16;
if (flag_code == CODE_64BIT)
bigdisp = Disp64;
{
if (!i.prefix[ADDR_PREFIX])
bigdisp = Disp64;
}
else if ((flag_code == CODE_16BIT) ^ (i.prefix[ADDR_PREFIX] != 0))
bigdisp = Disp16;
i.types[this_operand] |= bigdisp;
exp = &disp_expressions[i.disp_operands];
@ -3596,15 +3610,28 @@ i386_index_check (operand_string)
ok = 1;
if (flag_code == CODE_64BIT)
{
/* 64bit checks. */
if ((i.base_reg
&& ((i.base_reg->reg_type & Reg64) == 0)
&& (i.base_reg->reg_type != BaseIndex
|| i.index_reg))
|| (i.index_reg
&& ((i.index_reg->reg_type & (Reg64|BaseIndex))
!= (Reg64|BaseIndex))))
ok = 0;
if (i.prefix[ADDR_PREFIX] == 0)
{
/* 64bit checks. */
if ((i.base_reg
&& ((i.base_reg->reg_type & Reg64) == 0)
&& (i.base_reg->reg_type != BaseIndex
|| i.index_reg))
|| (i.index_reg
&& ((i.index_reg->reg_type & (Reg64|BaseIndex))
!= (Reg64|BaseIndex))))
ok = 0;
}
else
{
/* 32bit checks. */
if ((i.base_reg
&& (i.base_reg->reg_type & (Reg32 | RegRex)) != Reg32)
|| (i.index_reg
&& ((i.index_reg->reg_type & (Reg32|BaseIndex|RegRex))
!= (Reg32|BaseIndex))))
ok = 0;
}
}
else
{