bool PerformCall( address start, bool far_rtn, unsigned num_parms )
{
const mad_string *list;
list = MADCallTypeList();
if( far_rtn && list[0] != MAD_MSTR_NIL ) ++list;
return( PerformExplicitCall( start, list[0], num_parms ) );
}
void ProcCall( void )
{
mad_string ctype;
int parm;
const char *results;
address start;
const char *old;
location_list ll;
dig_type_info ti;
dig_type_info *pti;
char *p;
const mad_reg_info **parm_reg;
if( CurrToken == T_DIV ) {
Scan();
ctype = ScanCall();
if( ctype == MAD_MSTR_NIL ) {
Error( ERR_LOC, LIT_ENG( ERR_BAD_CALL_TYPE ) );
}
} else {
ctype = DefCallType;
}
CallExpr( &start );
if( _IsOff( SW_HAVE_SET_CALL ) ) {
FiniCall();
p = TxtBuff;
*p++ = '(';
parm_reg = MADCallParmRegList( ctype, start );
for( parm = 0; parm_reg[parm] != NULL; ++parm ) {
if( parm > 0 ) {
*p++ = ',';
}
p = StrCopy( parm_reg[parm]->name, p );
}
*p++ = ')';
StrCopy( MADCallReturnReg( ctype, start )->name, p );
old = ReScan( TxtBuff );
DoCallSet();
ReScan( old );
}
parm = 0;
results = DefReturn;
if( CurrToken == T_LEFT_PAREN ) {
Scan();
if( CurrToken != T_RIGHT_PAREN ) {
for( ; ; ) {
pti = &ti;
if( CurrToken == T_DIV ) {
Scan();
if( CurrToken == T_DIV ) {
Scan();
/* on stack */
LocationCreate( &ll, LT_INTERNAL, NULL );
pti = NULL;
} else {
GetLocation( &ll, pti );
}
} else {
if( DefParms[parm] == NULL ) {
/* on stack */
LocationCreate( &ll, LT_INTERNAL, NULL );
pti = NULL;
} else {
old = ReScan( DefParms[parm] );
GetLocation( &ll, pti );
ReScan( old );
}
}
PushLocation( &ll, pti );
NormalExpr();
SwapStack( 1 );
++parm;
if( CurrToken != T_COMMA )
break;
Scan();
}
}
Recog( T_RIGHT_PAREN );
results = ScanPos();
if( CurrToken == T_DIV ) {
Scan();
} else if( ScanEOC() ) {
results = DefReturn;
} else {
/* syntax check */
ChkPrintList();
}
}
ReqEOC();
FreezeRegs();
if( PerformExplicitCall( start, ctype, parm ) && results != NULL ) {
old = ReScan( results );
if( Spawn( CallResults ) == 0 ) {
ReScan( old );
}
}
UnFreezeRegs();
FreePgmStack( false );
}