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338 lines
9.0 KiB
ObjectPascal
338 lines
9.0 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1999 by Florian Klaempfl
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Contains the assembler object for the PowerPC
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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****************************************************************************
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}
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unit cpuasm;
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interface
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uses
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cobjects,
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aasm,globals,verbose,
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cpubase;
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type
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pairegalloc = ^tairegalloc;
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tairegalloc = object(tai)
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allocation : boolean;
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reg : tregister;
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constructor alloc(r : tregister);
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constructor dealloc(r : tregister);
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end;
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pappc = ^tappc;
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tappc = object(tai)
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is_jmp : boolean; { is this instruction a jump? (needed for optimizer) }
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opcode : tasmop;
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ops : longint;
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condition : TasmCond;
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oper : array[0..4] of toper;
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constructor op_none(op : tasmop);
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constructor op_reg(op : tasmop;_op1 : tregister);
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constructor op_const(op : tasmop;_op1 : longint);
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constructor op_reg_reg(op : tasmop;_op1,_op2 : tregister);
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constructor op_reg_ref(op : tasmop;_op1 : tregister;_op2 : preference);
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constructor op_reg_const(op:tasmop; _op1: tregister; _op2: longint);
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constructor op_const_reg(op:tasmop; _op1: longint; _op2: tregister);
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constructor op_const_const(op : tasmop;_op1,_op2 : longint);
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constructor op_reg_reg_reg(op : tasmop;_op1,_op2,_op3 : tregister);
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constructor op_reg_reg_const(op : tasmop;_op1,_op2 : tregister; _op3: Longint);
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constructor op_reg_reg_sym_ofs(op : tasmop;_op1,_op2 : tregister; _op3: pasmsymbol;_op3ofs: longint);
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constructor op_reg_reg_ref(op : tasmop;_op1,_op2 : tregister; _op3: Longint);
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constructor op_const_reg_reg(op : tasmop;_op1 : longint;_op2, _op3 : tregister);
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constructor op_const_reg_const(op : tasmop;_op1 : longint;_op2 : tregister;_op3 : longint);
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constructor op_reg_reg_reg_reg(op : tasmop;_op1,_op2,_op3,_op4 : tregister);
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constructor op_reg_bool_reg_reg(op : tasmop;_op1: tregister;_op2:boolean;_op3,_op4:tregister);
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constructor op_reg_bool_reg_const(op : tasmop;_op1: tregister;_op2:boolean;_op3:tregister;_op4: longint);
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constructor op_reg_reg_const_const_const(op : tasmop;_op1,_op2 : tregister;_op3,_op4,_op5 : Longint);
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{ this is for Jmp instructions }
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constructor op_cond_sym(op : tasmop;cond:TAsmCond;_op1 : pasmsymbol);
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constructor op_const_const_sym(op : tasmop;_op1,_op2 : longint);
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constructor op_sym(op : tasmop;_op1 : pasmsymbol);
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constructor op_sym_ofs(op : tasmop;_op1 : pasmsymbol;_op1ofs:longint);
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constructor op_reg_sym_ofs(op : tasmop;_op1 : tregister;_op2:pasmsymbol;_op2ofs : longint);
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destructor done;virtual;
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function getcopy:plinkedlist_item;virtual;
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private
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segprefix : tregister;
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procedure init(op : tasmop); { this need to be called by all constructor }
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end;
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implementation
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uses
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og386;
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{*****************************************************************************
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TaiRegAlloc
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*****************************************************************************}
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constructor tairegalloc.alloc(r : tregister);
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begin
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inherited init;
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typ:=ait_regalloc;
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allocation:=true;
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reg:=r;
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end;
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constructor tairegalloc.dealloc(r : tregister);
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begin
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inherited init;
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typ:=ait_regalloc;
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allocation:=false;
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reg:=r;
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end;
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{*****************************************************************************
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tappc Constructors
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*****************************************************************************}
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procedure tappc.init(op : tasmop);
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begin
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typ:=ait_instruction;
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is_jmp:=false;
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segprefix:=R_NO;
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opcode:=op;
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ops:=0;
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condition:=c_none;
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fillchar(oper,sizeof(oper),0);
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end;
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constructor tappc.op_none(op : tasmop);
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begin
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inherited init;
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init(op);
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end;
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constructor tappc.op_reg(op : tasmop;_op1 : tregister);
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begin
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inherited init;
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init(op);
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ops:=1;
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end;
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constructor tappc.op_const(op : tasmop;_op1 : longint);
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begin
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inherited init;
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init(op);
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ops:=1;
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end;
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constructor tappc.op_reg_reg(op : tasmop;_op1,_op2 : tregister);
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begin
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inherited init;
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init(op);
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ops:=2;
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end;
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constructor tappc.op_reg_const(op:tasmop; _op1: tregister; _op2: longint);
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begin
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inherited init;
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init(op);
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ops:=2;
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end;
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constructor op_const_reg(op:tasmop; _op1: longint; _op2: tregister);
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begin
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inherited init;
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init(op);
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ops:=2;
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end;
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constructor tappc.op_reg_ref(op : tasmop;_op1 : tregister;_op2 : preference);
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begin
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inherited init;
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init(op);
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ops:=2;
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end;
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constructor tappc.op_const_const(op : tasmop;_op1,_op2 : longint);
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begin
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inherited init;
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init(op);
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ops:=2;
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end;
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constructor tappc.op_reg_reg_reg(op : tasmop;_op1,_op2,_op3 : tregister);
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begin
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inherited init;
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init(op);
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ops:=3;
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end;
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constructor op_reg_reg_const(op : tasmop;_op1,_op2 : tregister; _op3: Longint);
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begin
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inherited init;
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init(op);
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ops:=3;
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end;
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constructor op_reg_reg_sym_ofs(op : tasmop;_op1,_op2 : tregister; _op3: pasmsymbol;_op3ofs: longint);
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begin
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inherited init;
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init(op);
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ops:=3;
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end;
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constructor tappc.op_const_reg_reg(op : tasmop;_op1 : longint;_op2, _op3 : tregister);
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begin
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inherited init;
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init(op);
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ops:=3;
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end;
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constructor op_const_reg_const(op : tasmop;_op1 : longint;_op2 : tregister;_op3 : longint);
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begin
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inherited init;
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init(op);
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ops:=3;
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end;
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constructor op_reg_reg_reg_reg(op : tasmop;_op1,_op2,_op3,_op4 : tregister);
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begin
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inherited init;
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init(op);
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ops:=4;
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end;
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constructor op_reg_bool_reg_reg(op : tasmop;_op1: tregister;_op2:boolean;_op3,_op4:tregister);
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begin
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inherited init;
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init(op);
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ops:=4;
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end;
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constructor op_reg_bool_reg_const(op : tasmop;_op1: tregister;_op2:boolean;_op3:tregister;_op4: longint);
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begin
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inherited init;
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init(op);
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ops:=4;
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end;
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constructor op_reg_reg_const_const_const(op : tasmop;_op1,_op2 : tregister;_op3,_op4,_op5 : Longint);
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begin
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inherited init;
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init(op);
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ops:=5;
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end;
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constructor tappc.op_cond_sym(op : tasmop;cond:TAsmCond;_op1 : pasmsymbol);
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begin
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inherited init;
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init(op);
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condition:=cond;
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ops:=1;
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end;
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constructor op_const_const_sym(op : tasmop;_op1,_op2 : longint);
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begin
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inherited init;
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init(op);
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condition:=cond;
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ops:=3;
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end;
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constructor tappc.op_sym(op : tasmop;_op1 : pasmsymbol);
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begin
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inherited init;
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init(op);
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ops:=1;
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end;
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constructor tappc.op_sym_ofs(op : tasmop;_op1 : pasmsymbol;_op1ofs:longint);
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begin
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inherited init;
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init(op);
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ops:=1;
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end;
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constructor tappc.op_reg_sym_ofs(op : tasmop;_op1 : tregister;_op2:pasmsymbol;_op2ofs : longint);
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begin
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inherited init;
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init(op);
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ops:=2;
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end;
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constructor tappc.op_sym_ofs_ref(op : tasmop;_op1 : pasmsymbol;_op1ofs:longint;_op2 : preference);
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begin
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inherited init;
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init(op);
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ops:=2;
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end;
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destructor tappc.done;
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var
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i : longint;
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begin
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for i:=1 to ops do
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if (oper[i-1].typ=top_ref) then
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dispose(oper[i-1].ref);
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inherited done;
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end;
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function tappc.getcopy:plinkedlist_item;
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var
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i : longint;
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p : plinkedlist_item;
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begin
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p:=inherited getcopy;
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{ make a copy of the references }
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for i:=1 to ops do
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if (paalpha(p)^.oper[i-1].typ=top_ref) then
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begin
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new(paalpha(p)^.oper[i-1].ref);
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paalpha(p)^.oper[i-1].ref^:=oper[i-1].ref^;
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end;
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getcopy:=p;
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end;
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end.
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{
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$Log$
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Revision 1.1 1999-08-03 23:37:53 jonas
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+ initial implementation for PowerPC based on the Alpha stuff
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} |