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{
Copyright (c) 1998-2001 by Florian Klaempfl and Pierre Muller
virtual instruction set family assembler instructions
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
****************************************************************************
}
unit aasmcpu;
{$i fpcdefs.inc}
interface
uses
cclasses,aasmtai,
aasmbase,globals,verbose,
cpubase,cpuinfo;
type
taicpu = class(taicpu_abstract)
opsize : topsize;
constructor op_none(op : tasmop;_size : topsize);
constructor op_reg(op : tasmop;_size : topsize;_op1 : tregister);
constructor op_const(op : tasmop;_size : topsize;_op1 : longint);
constructor op_ref(op : tasmop;_size : topsize;_op1 : treference);
constructor op_reg_reg(op : tasmop;_size : topsize;_op1,_op2 : tregister);
constructor op_reg_ref(op : tasmop;_size : topsize;_op1 : tregister;_op2 : treference);
constructor op_ref_reg(op : tasmop;_size : topsize;_op1 : treference;_op2 : tregister);
constructor op_const_reg(op : tasmop;_size : topsize;_op1 : longint;_op2 : tregister);
constructor op_const_ref(op : tasmop;_size : topsize;_op1 : longint;_op2 : treference);
{ this is for Jmp instructions }
constructor op_cond_sym(op : tasmop;cond:TAsmCond;_size : topsize;_op1 : tasmsymbol);
constructor op_sym(op : tasmop;_size : topsize;_op1 : tasmsymbol);
{ for DBxx opcodes }
constructor op_reg_sym(op: tasmop; _size : topsize; _op1: tregister; _op2 :tasmsymbol);
constructor op_sym_ofs_reg(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint;_op2 : tregister);
constructor op_sym_ofs(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint);
constructor op_sym_ofs_ref(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint;const _op2 : treference);
private
procedure init(_size : topsize); { this need to be called by all constructor }
end;
tai_align = class(tai_align_abstract)
{ nothing to add }
end;
procedure InitAsm;
procedure DoneAsm;
implementation
{*****************************************************************************
Taicpu Constructors
*****************************************************************************}
procedure taicpu.init(_size : topsize);
begin
typ:=ait_instruction;
is_jmp:=false;
opsize:=_size;
ops:=0;
end;
constructor taicpu.op_none(op : tasmop;_size : topsize);
begin
inherited create(op);;
init(_size);
end;
constructor taicpu.op_reg(op : tasmop;_size : topsize;_op1 : tregister);
begin
inherited create(op);;
init(_size);
ops:=1;
loadreg(0,_op1);
end;
constructor taicpu.op_const(op : tasmop;_size : topsize;_op1 : longint);
begin
inherited create(op);;
init(_size);
ops:=1;
loadconst(0,aword(_op1));
end;
constructor taicpu.op_ref(op : tasmop;_size : topsize;_op1 : treference);
begin
inherited create(op);;
init(_size);
ops:=1;
loadref(0,_op1);
end;
constructor taicpu.op_reg_reg(op : tasmop;_size : topsize;_op1,_op2 : tregister);
begin
inherited create(op);;
init(_size);
ops:=2;
loadreg(0,_op1);
loadreg(1,_op2);
end;
constructor taicpu.op_reg_ref(op : tasmop;_size : topsize;_op1 : tregister;_op2 : treference);
begin
inherited create(op);;
init(_size);
ops:=2;
loadreg(0,_op1);
loadref(1,_op2);
end;
constructor taicpu.op_const_reg(op : tasmop;_size : topsize;_op1 : longint;_op2 : tregister);
begin
inherited create(op);;
init(_size);
ops:=2;
loadconst(0,aword(_op1));
loadreg(1,_op2);
end;
constructor taicpu.op_const_ref(op : tasmop;_size : topsize;_op1 : longint;_op2 : treference);
begin
inherited create(op);;
init(_size);
ops:=2;
loadconst(0,aword(_op1));
loadref(1,_op2);
end;
constructor taicpu.op_ref_reg(op : tasmop;_size : topsize;_op1 : treference;_op2 : tregister);
begin
inherited create(op);;
init(_size);
ops:=2;
loadref(0,_op1);
loadreg(1,_op2);
end;
constructor taicpu.op_sym(op : tasmop;_size : topsize;_op1 : tasmsymbol);
begin
inherited create(op);;
init(_size);
ops:=1;
loadsymbol(0,_op1,0);
end;
constructor taicpu.op_reg_sym(op: tasmop; _size : topsize; _op1: tregister; _op2 :tasmsymbol);
begin
inherited create(op);
init(_size);
ops:=2;
loadreg(0,_op1);
loadsymbol(1,_op2,0);
end;
constructor taicpu.op_sym_ofs_ref(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint;const _op2 : treference);
begin
inherited create(op);
init(_size);
ops:=2;
loadsymbol(0,_op1,_op1ofs);
loadref(1,_op2);
end;
constructor taicpu.op_sym_ofs(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint);
begin
inherited create(op);
init(_size);
ops:=1;
loadsymbol(0,_op1,_op1ofs);
end;
constructor taicpu.op_sym_ofs_reg(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint;_op2 : tregister);
begin
inherited create(op);;
init(_size);
ops:=2;
loadreg(0,_op2);
loadsymbol(1,_op1,_op1ofs);
end;
constructor taicpu.op_cond_sym(op : tasmop;cond:TAsmCond;_size : topsize;_op1 : tasmsymbol);
begin
inherited create(op);
init(_size);
condition:=cond;
ops:=1;
loadsymbol(0,_op1,0);
end;
procedure InitAsm;
begin
end;
procedure DoneAsm;
begin
end;
end.
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