1994-06-24 14:02:31 +00:00
|
|
|
#define RCSID4 "$Id$"
|
1985-06-10 14:52:43 +00:00
|
|
|
|
|
|
|
|
/*
|
1987-03-10 01:26:51 +00:00
|
|
|
* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
|
|
|
|
|
* See the copyright notice in the ACK home directory, in the file "Copyright".
|
1985-06-10 14:52:43 +00:00
|
|
|
*
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* Motorola 6800 parsing rules
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
operation
|
|
|
|
|
:
|
|
|
|
|
NOARG
|
|
|
|
|
{ emit1($1);}
|
|
|
|
|
|
|
|
|
|
|
BRANCH expr
|
|
|
|
|
{ branch($1,$2);}
|
|
|
|
|
|
|
|
|
|
|
XOP '#' expr
|
|
|
|
|
{ emit1($1 - 0x20);
|
|
|
|
|
switch ($1 & 0x0F) {
|
|
|
|
|
case 0x03:
|
|
|
|
|
case 0x0C:
|
|
|
|
|
case 0x0E:
|
|
|
|
|
#ifdef RELOCATION
|
|
|
|
|
newrelo($3.typ, RELBR | RELO2);
|
|
|
|
|
#endif
|
|
|
|
|
emit2($3.val);
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
#ifdef RELOCATION
|
|
|
|
|
newrelo($3.typ, RELO1);
|
|
|
|
|
#endif
|
|
|
|
|
emit1($3.val);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
XOP '<' expr
|
|
|
|
|
{ emit1($1 - 0x10);
|
|
|
|
|
#ifdef RELOCATION
|
|
|
|
|
newrelo($3.typ, RELO1);
|
|
|
|
|
#endif
|
|
|
|
|
emit1($3.val);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
memref expr
|
|
|
|
|
{ emit1($1 + 0x10);
|
|
|
|
|
#ifdef RELOCATION
|
|
|
|
|
newrelo($2.typ, RELO2);
|
|
|
|
|
#endif
|
|
|
|
|
emit2($2.val);
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
memref expr ',' X
|
|
|
|
|
{ emit1($1);
|
|
|
|
|
#ifdef RELOCATION
|
|
|
|
|
newrelo($2.typ, RELO1);
|
|
|
|
|
#endif
|
|
|
|
|
emit1($2.val);
|
|
|
|
|
}
|
|
|
|
|
;
|
|
|
|
|
memref :
|
|
|
|
|
AOP
|
|
|
|
|
|
|
|
|
|
|
XOP
|
|
|
|
|
;
|
