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565 lines
17 KiB
ObjectPascal
565 lines
17 KiB
ObjectPascal
{
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Copyright (c) 1998-2001 by Florian Klaempfl and Pierre Muller
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m68k family assembler instructions
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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 aasmcpu;
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{$i fpcdefs.inc}
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interface
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uses
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cclasses,aasmtai,aasmdata,aasmsym,
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aasmbase,globals,verbose,symtype,
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cpubase,cpuinfo,cgbase,cgutils;
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const
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{ "mov reg,reg" source operand number }
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O_MOV_SOURCE = 0;
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{ "mov reg,reg" source operand number }
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O_MOV_DEST = 1;
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type
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taicpu = class(tai_cpu_abstract_sym)
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opsize : topsize;
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procedure loadregset(opidx:longint; const dataregs,addrregs,fpuregs:tcpuregisterset);
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procedure loadregpair(opidx:longint; const _reghi,_reglo: tregister);
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procedure loadrealconst(opidx:longint; const value_real: bestreal);
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constructor op_none(op : tasmop);
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constructor op_none(op : tasmop;_size : topsize);
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constructor op_reg(op : tasmop;_size : topsize;_op1 : tregister);
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constructor op_const(op : tasmop;_size : topsize;_op1 : longint);
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constructor op_ref(op : tasmop;_size : topsize;_op1 : treference);
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constructor op_reg_reg(op : tasmop;_size : topsize;_op1,_op2 : tregister);
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constructor op_reg_ref(op : tasmop;_size : topsize;_op1 : tregister;_op2 : treference);
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constructor op_reg_const(op:tasmop; _size: topsize; _op1: tregister; _op2: longint);
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constructor op_const_reg(op : tasmop;_size : topsize;_op1 : longint;_op2 : tregister);
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constructor op_const_const(op : tasmop;_size : topsize;_op1,_op2 : longint);
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constructor op_const_ref(op : tasmop;_size : topsize;_op1 : longint;_op2 : treference);
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constructor op_realconst_reg(op : tasmop;_size : topsize;_op1: bestreal;_op2: tregister);
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constructor op_ref_reg(op : tasmop;_size : topsize;_op1 : treference;_op2 : tregister);
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{ this is only allowed if _op1 is an int value (_op1^.isintvalue=true) }
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constructor op_ref_ref(op : tasmop;_size : topsize;_op1,_op2 : treference);
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{ this is used for divx/remx regpair generation }
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constructor op_reg_reg_reg(op : tasmop;_size : topsize;_op1,_op2,_op3 : tregister);
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constructor op_reg_regset(op: tasmop; _size : topsize; _op1: tregister;const _op2data,_op2addr,_op2fpu: tcpuregisterset);
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constructor op_regset_reg(op: tasmop; _size : topsize;const _op1data,_op1addr,_op1fpu: tcpuregisterset; _op2: tregister);
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constructor op_ref_regset(op: tasmop; _size : topsize; _op1: treference;const _op2data,_op2addr,_op2fpu: tcpuregisterset);
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constructor op_regset_ref(op: tasmop; _size : topsize;const _op1data,_op1addr,_op1fpu: tcpuregisterset; _op2: treference);
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{ this is for Jmp instructions }
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constructor op_cond_sym(op : tasmop;cond:TAsmCond;_size : topsize;_op1 : tasmsymbol);
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constructor op_sym(op : tasmop;_size : topsize;_op1 : tasmsymbol);
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{ for DBxx opcodes }
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constructor op_reg_sym(op: tasmop; _size : topsize; _op1: tregister; _op2 :tasmsymbol);
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constructor op_sym_ofs_reg(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint;_op2 : tregister);
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constructor op_sym_ofs(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint);
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constructor op_sym_ofs_ref(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint;const _op2 : treference);
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function is_same_reg_move(regtype: Tregistertype):boolean;override;
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function spilling_get_operation_type(opnr: longint): topertype;override;
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function spilling_get_operation_type_ref(opnr: longint; reg: tregister): topertype;override;
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private
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procedure init(_size : topsize); { this need to be called by all constructor }
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end;
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tai_align = class(tai_align_abstract)
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{ nothing to add }
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end;
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procedure InitAsm;
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procedure DoneAsm;
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function spilling_create_load(const ref:treference;r:tregister):Taicpu;
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function spilling_create_store(r:tregister; const ref:treference):Taicpu;
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implementation
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uses
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globtype;
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{*****************************************************************************
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Taicpu Constructors
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*****************************************************************************}
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procedure taicpu.loadregset(opidx:longint; const dataregs,addrregs,fpuregs:tcpuregisterset);
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var
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i : byte;
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begin
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allocate_oper(opidx+1);
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with oper[opidx]^ do
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begin
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if typ<>top_regset then
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clearop(opidx);
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dataregset:=dataregs;
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addrregset:=addrregs;
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fpuregset:=fpuregs;
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typ:=top_regset;
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for i:=RS_D0 to RS_D7 do
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begin
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if assigned(add_reg_instruction_hook) and (i in dataregset) then
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add_reg_instruction_hook(self,newreg(R_INTREGISTER,i,R_SUBWHOLE));
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end;
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for i:=RS_A0 to RS_SP do
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begin
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if assigned(add_reg_instruction_hook) and (i in addrregset) then
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add_reg_instruction_hook(self,newreg(R_ADDRESSREGISTER,i,R_SUBWHOLE));
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end;
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for i:=RS_FP0 to RS_FP7 do
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begin
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if assigned(add_reg_instruction_hook) and (i in fpuregset) then
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add_reg_instruction_hook(self,newreg(R_FPUREGISTER,i,R_SUBWHOLE));
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end;
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end;
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end;
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procedure taicpu.loadregpair(opidx:longint; const _reghi,_reglo: tregister);
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begin
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allocate_oper(opidx+1);
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with oper[opidx]^ do
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begin
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if typ<>top_regpair then
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clearop(opidx);
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typ:=top_regpair;
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reghi:=_reghi;
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reglo:=_reglo;
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end;
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end;
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procedure taicpu.loadrealconst(opidx:longint; const value_real: bestreal);
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begin
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allocate_oper(opidx+1);
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with oper[opidx]^ do
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begin
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if typ<>top_realconst then
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clearop(opidx);
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val_real:=value_real;
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typ:=top_realconst;
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end;
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end;
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procedure taicpu.init(_size : topsize);
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begin
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typ:=ait_instruction;
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is_jmp:=false;
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opsize:=_size;
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ops:=0;
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end;
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constructor taicpu.op_none(op : tasmop);
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begin
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inherited create(op);
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init(S_NO);
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end;
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constructor taicpu.op_none(op : tasmop;_size : topsize);
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begin
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inherited create(op);
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init(_size);
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end;
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constructor taicpu.op_reg(op : tasmop;_size : topsize;_op1 : tregister);
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begin
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inherited create(op);
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init(_size);
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ops:=1;
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loadreg(0,_op1);
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end;
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constructor taicpu.op_const(op : tasmop;_size : topsize;_op1 : longint);
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begin
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inherited create(op);
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init(_size);
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ops:=1;
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loadconst(0,aword(_op1));
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end;
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constructor taicpu.op_ref(op : tasmop;_size : topsize;_op1 : treference);
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begin
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inherited create(op);
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init(_size);
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ops:=1;
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loadref(0,_op1);
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end;
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constructor taicpu.op_reg_reg(op : tasmop;_size : topsize;_op1,_op2 : tregister);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadreg(0,_op1);
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loadreg(1,_op2);
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end;
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constructor taicpu.op_reg_const(op:tasmop; _size: topsize; _op1: tregister; _op2: longint);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadreg(0,_op1);
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loadconst(1,aword(_op2));
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end;
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constructor taicpu.op_reg_ref(op : tasmop;_size : topsize;_op1 : tregister;_op2 : treference);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadreg(0,_op1);
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loadref(1,_op2);
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end;
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constructor taicpu.op_const_reg(op : tasmop;_size : topsize;_op1 : longint;_op2 : tregister);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadconst(0,aword(_op1));
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loadreg(1,_op2);
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end;
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constructor taicpu.op_const_const(op : tasmop;_size : topsize;_op1,_op2 : longint);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadconst(0,aword(_op1));
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loadconst(1,aword(_op2));
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end;
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constructor taicpu.op_const_ref(op : tasmop;_size : topsize;_op1 : longint;_op2 : treference);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadconst(0,aword(_op1));
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loadref(1,_op2);
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end;
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constructor taicpu.op_realconst_reg(op : tasmop;_size : topsize;_op1 : bestreal;_op2 : tregister);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadrealconst(0,_op1);
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loadreg(1,_op2);
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end;
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constructor taicpu.op_ref_reg(op : tasmop;_size : topsize;_op1 : treference;_op2 : tregister);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadref(0,_op1);
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loadreg(1,_op2);
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end;
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constructor taicpu.op_ref_ref(op : tasmop;_size : topsize;_op1,_op2 : treference);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadref(0,_op1);
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loadref(1,_op2);
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end;
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constructor taicpu.op_reg_reg_reg(op : tasmop;_size : topsize;_op1,_op2,_op3 : tregister);
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begin
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inherited create(op);
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init(_size);
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ops:=3;
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loadreg(0,_op1);
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loadreg(1,_op2);
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loadreg(2,_op3);
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end;
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constructor taicpu.op_ref_regset(op: tasmop; _size : topsize; _op1: treference;const _op2data,_op2addr,_op2fpu: tcpuregisterset);
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Begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadref(0,_op1);
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loadregset(1,_op2data,_op2addr,_op2fpu);
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end;
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constructor taicpu.op_regset_ref(op: tasmop; _size : topsize;const _op1data,_op1addr,_op1fpu: tcpuregisterset; _op2: treference);
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Begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadregset(0,_op1data,_op1addr,_op1fpu);
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loadref(1,_op2);
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End;
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constructor taicpu.op_reg_regset(op: tasmop; _size : topsize; _op1: tregister;const _op2data,_op2addr,_op2fpu: tcpuregisterset);
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Begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadreg(0,_op1);
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loadregset(1,_op2data,_op2addr,_op2fpu);
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end;
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constructor taicpu.op_regset_reg(op: tasmop; _size : topsize;const _op1data,_op1addr,_op1fpu: tcpuregisterset; _op2: tregister);
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Begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadregset(0,_op1data,_op1addr,_op1fpu);
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loadreg(1,_op2);
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End;
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constructor taicpu.op_sym(op : tasmop;_size : topsize;_op1 : tasmsymbol);
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begin
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inherited create(op);
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init(_size);
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ops:=1;
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loadsymbol(0,_op1,0);
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end;
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constructor taicpu.op_reg_sym(op: tasmop; _size : topsize; _op1: tregister; _op2 :tasmsymbol);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadreg(0,_op1);
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loadsymbol(1,_op2,0);
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end;
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constructor taicpu.op_sym_ofs_ref(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint;const _op2 : treference);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadsymbol(0,_op1,_op1ofs);
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loadref(1,_op2);
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end;
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constructor taicpu.op_sym_ofs(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint);
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begin
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inherited create(op);
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init(_size);
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ops:=1;
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loadsymbol(0,_op1,_op1ofs);
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end;
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constructor taicpu.op_sym_ofs_reg(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint;_op2 : tregister);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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if ((op >= A_DBCC) and (op <= A_DBF))
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or ((op >= A_FDBEQ) and (op <= A_FDBNGLE)) then
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begin
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loadreg(0,_op2);
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loadsymbol(1,_op1,_op1ofs);
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end
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else
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begin
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loadsymbol(0,_op1,_op1ofs);
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loadreg(1,_op2);
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end;
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end;
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constructor taicpu.op_cond_sym(op : tasmop;cond:TAsmCond;_size : topsize;_op1 : tasmsymbol);
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begin
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inherited create(op);
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init(_size);
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condition:=cond;
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ops:=1;
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loadsymbol(0,_op1,0);
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end;
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function taicpu.is_same_reg_move(regtype: Tregistertype):boolean;
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begin
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result:=(((opcode=A_MOVE) or (opcode=A_EXG)) and
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(regtype = R_INTREGISTER) and
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(ops=2) and
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(oper[0]^.typ=top_reg) and
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(oper[1]^.typ=top_reg) and
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(isregoverlap(oper[0]^.reg,oper[1]^.reg))
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) or
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(((opcode=A_MOVE) or (opcode=A_EXG) or (opcode=A_MOVEA)) and
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(regtype = R_ADDRESSREGISTER) and
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(ops=2) and
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(oper[0]^.typ=top_reg) and
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(oper[1]^.typ=top_reg) and
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(isregoverlap(oper[0]^.reg,oper[1]^.reg))
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) or
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((opcode=A_FMOVE) and
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(regtype = R_FPUREGISTER) and
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(ops=2) and
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(oper[0]^.typ=top_reg) and
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(oper[1]^.typ=top_reg) and
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(oper[0]^.reg=oper[1]^.reg)
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);
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end;
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function taicpu.spilling_get_operation_type(opnr: longint): topertype;
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begin
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result:=operand_read;
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case opcode of
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// CPU opcodes
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A_MOVE, A_MOVEQ, A_MOVEA, A_MVZ, A_MVS, A_MOV3Q, A_LEA:
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if opnr=1 then
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result:=operand_write;
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A_ADD, A_ADDQ, A_ADDX, A_SUB, A_SUBQ, A_SUBX,
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A_AND, A_LSR, A_LSL, A_ASR, A_ASL, A_EOR, A_EORI, A_OR,
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A_ROL, A_ROR, A_ROXL, A_ROXR,
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A_MULS, A_MULU, A_DIVS, A_DIVU, A_DIVSL, A_DIVUL, A_REMS, A_REMU,
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A_BSET, A_BCLR:
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if opnr=1 then
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result:=operand_readwrite;
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A_DBRA:
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if opnr=0 then
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result:=operand_readwrite;
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A_CLR, A_SXX, A_SEQ, A_SNE, A_SLT, A_SLE, A_SGT, A_SGE, A_SCS, A_SCC,
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A_SMI, A_SPL, A_SF, A_ST, A_SVS, A_SVC, A_SHI, A_SLS:
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result:=operand_write;
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A_NEG, A_NEGX, A_EXT, A_EXTB, A_NOT, A_SWAP:
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result:=operand_readwrite;
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A_TST,A_CMP,A_CMPI,A_BTST:
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begin end; { Do nothing, default operand_read is fine here. }
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// FPU opcodes
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A_FSXX, A_FSEQ, A_FSNE, A_FSLT, A_FSLE, A_FSGT, A_FSGE:
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result:=operand_write;
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A_FABS,A_FSQRT,A_FNEG,A_FSIN,A_FCOS:
|
|
if ops = 1 then
|
|
begin
|
|
if opnr = 0 then
|
|
result:=operand_readwrite;
|
|
end
|
|
else
|
|
if opnr = 1 then
|
|
result:=operand_write;
|
|
A_FMOVE:
|
|
if opnr=1 then
|
|
result:=operand_write;
|
|
A_FADD, A_FSUB, A_FMUL, A_FDIV:
|
|
if opnr=1 then
|
|
result:=operand_readwrite;
|
|
A_FCMP, A_FTST:
|
|
begin end; { operand_read }
|
|
|
|
else begin
|
|
internalerror(2004040903);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
function taicpu.spilling_get_operation_type_ref(opnr: longint; reg: tregister): topertype;
|
|
begin
|
|
result := operand_read;
|
|
if (oper[opnr]^.ref^.base = reg) and
|
|
(oper[opnr]^.ref^.direction <> dir_none) then
|
|
result := operand_readwrite;
|
|
end;
|
|
|
|
function spilling_create_load(const ref:treference;r:tregister):Taicpu;
|
|
begin
|
|
case getregtype(r) of
|
|
R_INTREGISTER :
|
|
result:=taicpu.op_ref_reg(A_MOVE,S_L,ref,r);
|
|
R_ADDRESSREGISTER :
|
|
result:=taicpu.op_ref_reg(A_MOVE,S_L,ref,r);
|
|
R_FPUREGISTER :
|
|
// no need to handle sizes here
|
|
result:=taicpu.op_ref_reg(A_FMOVE,S_FS,ref,r);
|
|
else
|
|
internalerror(200602011);
|
|
end;
|
|
end;
|
|
|
|
|
|
function spilling_create_store(r:tregister; const ref:treference):Taicpu;
|
|
begin
|
|
case getregtype(r) of
|
|
R_INTREGISTER :
|
|
result:=taicpu.op_reg_ref(A_MOVE,S_L,r,ref);
|
|
R_ADDRESSREGISTER :
|
|
result:=taicpu.op_reg_ref(A_MOVE,S_L,r,ref);
|
|
R_FPUREGISTER :
|
|
// no need to handle sizes here
|
|
result:=taicpu.op_reg_ref(A_FMOVE,S_FS,r,ref);
|
|
else
|
|
internalerror(200602012);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure InitAsm;
|
|
begin
|
|
end;
|
|
|
|
|
|
procedure DoneAsm;
|
|
begin
|
|
end;
|
|
|
|
|
|
begin
|
|
cai_align:=tai_align;
|
|
cai_cpu:=taicpu;
|
|
end.
|