{–}
{ Complement the Primary Register }
procedure NotIt;
begin
EmitLn('NOT D0');
end;
{–}
{ Load a Constant Value to Primary Register }
procedure LoadConst(n: string);
begin
Emit('MOVE #');
WriteLn(n, ',D0');
end;
{–}
{ Load a Variable to Primary Register }
procedure LoadVar(Name: string);
begin
if not InTable(Name) then Undefined(Name);
EmitLn('MOVE ' + Name + '(PC),D0');
end;
{–}
{ Push Primary onto Stack }
procedure Push;
begin
EmitLn('MOVE D0,-(SP)');
end;
{–}
{ Add Top of Stack to Primary }
procedure PopAdd;
begin
EmitLn('ADD (SP)+,D0');
end;
{–}
{ Subtract Primary from Top of Stack }
procedure PopSub;
begin
EmitLn('SUB (SP)+,D0');
EmitLn('NEG D0');
end;
{–}
{ Multiply Top of Stack by Primary }
procedure PopMul;
begin
EmitLn('MULS (SP)+,D0');
end;
{–}
{ Divide Top of Stack by Primary }
procedure PopDiv;
begin
EmitLn('MOVE (SP)+,D7');
EmitLn('EXT.L D7');
EmitLn('DIVS D0,D7');
EmitLn('MOVE D7,D0');
end;
{–}
{ AND Top of Stack with Primary }
procedure PopAnd;
begin
EmitLn('AND (SP)+,D0');
end;
{–}
{ OR Top of Stack with Primary }
procedure PopOr;
begin
EmitLn('OR (SP)+,D0');
end;
{–}
{ XOR Top of Stack with Primary }
procedure PopXor;
begin
EmitLn('EOR (SP)+,D0');
end;
{–}
{ Compare Top of Stack with Primary }
procedure PopCompare;
begin
EmitLn('CMP (SP)+,D0');
end;
{–}
{ Set D0 If Compare was = }
procedure SetEqual;
begin
EmitLn('SEQ D0');
EmitLn('EXT D0');
end;
{–}
{ Set D0 If Compare was != }
procedure SetNEqual;
begin
EmitLn('SNE D0');
EmitLn('EXT D0');
end;
{–}
{ Set D0 If Compare was > }
procedure SetGreater;
begin
EmitLn('SLT D0');
EmitLn('EXT D0');
end;
