riscv
/
binutils-gdb
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity
Browse Source

Tue Jun 9 12:20:05 1998 Alan Modra <alan@spri.levels.unisa.edu.au> 

* config/tc-i386.h: Change Data16 to Size16, Data32 to Size32,
	IgnoreDataSize to IgnoreSize as they are used for address size as
	well as data size.
	* config/tc-i386.c: Likewise.  Add code to reject addr32/data32 in
	32-bit mode, similarly addr16/data16 and variants.
gdb-4_18-branch
Ian Lance Taylor 29 years ago
parent
b8e4d255f3
commit
284f02bba8
3 changed files with 25 additions and 7 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Split View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 8
      gas/ChangeLog
  2. 18
      gas/config/tc-i386.c
  3. 6
      gas/config/tc-i386.h

8
gas/ChangeLog
View File

@ -1,3 +1,11 @@
Tue Jun 9 12:20:05 1998 Alan Modra <alan@spri.levels.unisa.edu.au>
* config/tc-i386.h: Change Data16 to Size16, Data32 to Size32,
IgnoreDataSize to IgnoreSize as they are used for address size as
well as data size.
* config/tc-i386.c: Likewise. Add code to reject addr32/data32 in
32-bit mode, similarly addr16/data16 and variants.
Mon Jun 8 18:32:01 1998 Nick Clifton <nickc@cygnus.com>
* config/tc-d30v.c (md_assemble): Fix handling of reverse

18
gas/config/tc-i386.c
View File

@ -934,8 +934,18 @@ md_assemble (line)
if (*l != END_OF_INSN
&& current_templates
&& (current_templates->start->opcode_modifier & IsPrefix) != 0)
&& (current_templates->start->opcode_modifier & IsPrefix))
{
/* 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))
&& (((current_templates->start->opcode_modifier & Size32) != 0)
^ flag_16bit_code))
{
as_bad (_("redundant %s prefix"),
current_templates->start->name);
return;
}
/* Add prefix, checking for repeated prefixes. */
switch (add_prefix (current_templates->start->base_opcode))
{
@ -1246,9 +1256,9 @@ md_assemble (line)
/* If matched instruction specifies an explicit opcode suffix, use
it. */
if (i.tm.opcode_modifier & (Data16|Data32))
if (i.tm.opcode_modifier & (Size16 | Size32))
{
if (i.tm.opcode_modifier & Data16)
if (i.tm.opcode_modifier & Size16)
i.suffix = WORD_OPCODE_SUFFIX;
else
i.suffix = DWORD_OPCODE_SUFFIX;
@ -1453,7 +1463,7 @@ md_assemble (line)
prefix anyway. */
if ((i.suffix == DWORD_OPCODE_SUFFIX
|| i.suffix == LONG_OPCODE_SUFFIX) == flag_16bit_code
&& !(i.tm.opcode_modifier & IgnoreDataSize))
&& !(i.tm.opcode_modifier & IgnoreSize))
{
unsigned int prefix = DATA_PREFIX_OPCODE;
if (i.tm.opcode_modifier & JumpByte) /* jcxz, loop */

6
gas/config/tc-i386.h
View File

@ -312,9 +312,9 @@ typedef struct
#define FloatD 0x400 /* direction for float insns: MUST BE 0x400 */
#define Seg2ShortForm 0x800 /* encoding of load segment reg insns */
#define Seg3ShortForm 0x1000 /* fs/gs segment register insns. */
#define Data16 0x2000 /* needs data prefix if in 32-bit mode */
#define Data32 0x4000 /* needs data prefix if in 16-bit mode */
#define IgnoreDataSize 0x8000 /* instruction ignores operand size prefix */
#define Size16 0x2000 /* needs size prefix if in 32-bit mode */
#define Size32 0x4000 /* needs size prefix if in 16-bit mode */
#define IgnoreSize 0x8000 /* instruction ignores operand size prefix */
#define No_bSuf 0x10000 /* b suffix on instruction illegal */
#define No_wSuf 0x20000 /* w suffix on instruction illegal */
#define No_lSuf 0x40000 /* l suffix on instruction illegal */

Write Preview
Loading…
Cancel
Save