@ -2568,12 +2568,16 @@ match_template ()
{
/* Points to template once we've found it. */
const template * t ;
unsigned int overlap0 , overlap1 , overlap2 ;
unsigned int overlap0 , overlap1 , overlap2 , overlap3 ;
unsigned int found_reverse_match ;
int suffix_check ;
unsigned int operand_types [ 3 ] ;
unsigned int operand_types [ MAX_OPERANDS ] ;
int addr_prefix_disp ;
# if MAX_OPERANDS != 4
# error "MAX_OPERANDS must be 4."
# endif
# define MATCH(overlap, given, template) \
( ( overlap & ~ JumpAbsolute ) \
& & ( ( ( given ) & ( BaseIndex | JumpAbsolute ) ) \
@ -2590,10 +2594,12 @@ match_template ()
overlap0 = 0 ;
overlap1 = 0 ;
overlap2 = 0 ;
overlap3 = 0 ;
found_reverse_match = 0 ;
operand_types [ 0 ] = 0 ;
operand_types [ 1 ] = 0 ;
operand_types [ 2 ] = 0 ;
operand_types [ 3 ] = 0 ;
addr_prefix_disp = - 1 ;
suffix_check = ( i . suffix = = BYTE_MNEM_SUFFIX
? No_bSuf
@ -2625,6 +2631,7 @@ match_template ()
operand_types [ 0 ] = t - > operand_types [ 0 ] ;
operand_types [ 1 ] = t - > operand_types [ 1 ] ;
operand_types [ 2 ] = t - > operand_types [ 2 ] ;
operand_types [ 3 ] = t - > operand_types [ 3 ] ;
/* In general, don't allow 64-bit operands in 32-bit mode. */
if ( i . suffix = = QWORD_MNEM_SUFFIX
@ -2670,7 +2677,7 @@ match_template ()
break ;
}
for ( j = 0 ; j < 3 ; j + + )
for ( j = 0 ; j < MAX_OPERANDS ; j + + )
{
/* There should be only one Disp operand. */
if ( ( operand_types [ j ] & DispOff ) )
@ -2692,6 +2699,7 @@ match_template ()
break ;
case 2 :
case 3 :
case 4 :
overlap1 = i . types [ 1 ] & operand_types [ 1 ] ;
if ( ! MATCH ( overlap0 , i . types [ 0 ] , operand_types [ 0 ] )
| | ! MATCH ( overlap1 , i . types [ 1 ] , operand_types [ 1 ] )
@ -2726,23 +2734,42 @@ match_template ()
we ' ve found . */
found_reverse_match = t - > opcode_modifier & ( D | FloatDR ) ;
}
else
{
/* Found a forward 2 operand match here. */
else if ( t - > operands = = 3 )
if ( t - > operands > 2 )
overlap2 = i . types [ 2 ] & operand_types [ 2 ] ;
if ( t - > operands > 3 )
overlap3 = i . types [ 3 ] & operand_types [ 3 ] ;
switch ( t - > operands )
{
case 4 :
if ( ! MATCH ( overlap3 , i . types [ 3 ] , operand_types [ 3 ] )
| | ! CONSISTENT_REGISTER_MATCH ( overlap2 ,
i . types [ 2 ] ,
operand_types [ 2 ] ,
overlap3 ,
i . types [ 3 ] ,
operand_types [ 3 ] ) )
continue ;
case 3 :
/* Here we make use of the fact that there are no
reverse match 3 operand instructions , and all 3
operand instructions only need to be checked for
register consistency between operands 2 and 3. */
overlap2 = i . types [ 2 ] & operand_types [ 2 ] ;
if ( ! MATCH ( overlap2 , i . types [ 2 ] , operand_types [ 2 ] )
| | ! CONSISTENT_REGISTER_MATCH ( overlap1 , i . types [ 1 ] ,
| | ! CONSISTENT_REGISTER_MATCH ( overlap1 ,
i . types [ 1 ] ,
operand_types [ 1 ] ,
overlap2 , i . types [ 2 ] ,
overlap2 ,
i . types [ 2 ] ,
operand_types [ 2 ] ) )
continue ;
break ;
}
}
/* Found either forward/reverse 2 or 3 operand match here:
/* Found either forward/reverse 2, 3 or 4 operand match here:
slip through to break . */
}
if ( t - > cpu_flags & ~ cpu_arch_flags )
H.J. Lu
20 years ago