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https://gitlab.com/freepascal.org/fpc/source.git
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253 lines
7.4 KiB
ObjectPascal
253 lines
7.4 KiB
ObjectPascal
{
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$Id$
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Copyright (c) 1999-2002 by Mazen Neifer
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Contains the assembler object for the SPARC
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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,
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aasmbase,globals,verbose,
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cpubase,cpuinfo;
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type
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taicpu = class(taicpu_abstract)
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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_ref(op : tasmop;const _op1 : treference);
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constructor op_const(op : tasmop;_op1 : aword);
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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;const _op2 : treference);
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constructor op_reg_const(op:tasmop; _op1: tregister; _op2: aword);
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constructor op_const_reg(op:tasmop; _op1: aword; _op2: tregister);
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constructor op_ref_reg(op : tasmop;const _op1 : treference;_op2 : tregister);
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constructor op_reg_reg_reg(op : tasmop;_op1,_op2,_op3 : tregister);
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constructor op_reg_ref_reg(op:tasmop;_op1:TRegister;_op2:TReference;_op3:tregister);
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constructor op_reg_const_reg(op:tasmop;_op1:TRegister;_op2:aword;_op3:tregister);
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{ this is for Jmp instructions }
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constructor op_cond_sym(op : tasmop;cond:TAsmCond;_op1 : tasmsymbol);
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constructor op_sym(op : tasmop;_op1 : tasmsymbol);
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constructor op_sym_ofs(op : tasmop;_op1 : tasmsymbol;_op1ofs:longint);
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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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implementation
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{*****************************************************************************
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taicpu Constructors
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*****************************************************************************}
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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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end;
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constructor taicpu.op_reg(op : tasmop;_op1 : tregister);
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begin
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inherited create(op);
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if (_op1.enum = R_INTREGISTER) and (_op1.number = NR_NO) then
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internalerror(2003031207);
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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_ref(op : tasmop;const _op1 : treference);
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begin
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inherited create(op);
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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_const(op : tasmop;_op1 : aword);
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begin
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inherited create(op);
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ops:=1;
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loadconst(0,_op1);
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end;
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constructor taicpu.op_reg_reg(op : tasmop;_op1,_op2 : tregister);
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begin
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inherited create(op);
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if (_op1.enum = R_INTREGISTER) and (_op1.number = NR_NO) then
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internalerror(2003031205);
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if (_op2.enum = R_INTREGISTER) and (_op2.number = NR_NO) then
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internalerror(2003031206);
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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; _op1: tregister; _op2: aword);
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begin
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inherited create(op);
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if (_op1.enum = R_INTREGISTER) and (_op1.number = NR_NO) then
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internalerror(2003031208);
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ops:=2;
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loadreg(0,_op1);
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loadconst(1,_op2);
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end;
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constructor taicpu.op_const_reg(op:tasmop; _op1: aword; _op2: tregister);
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begin
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inherited create(op);
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if (_op2.enum = R_INTREGISTER) and (_op2.number = NR_NO) then
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internalerror(2003031209);
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ops:=2;
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loadconst(0,_op1);
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loadreg(1,_op2);
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end;
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constructor taicpu.op_reg_ref(op : tasmop;_op1 : tregister;const _op2 : treference);
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begin
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inherited create(op);
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if (_op1.enum = R_INTREGISTER) and (_op1.number = NR_NO) then
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internalerror(2003031210);
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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_ref_reg(op : tasmop;const _op1 : treference;_op2 : tregister);
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begin
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inherited create(op);
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if (_op2.enum = R_INTREGISTER) and (_op2.number = NR_NO) then
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internalerror(2003031210);
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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_reg_reg_reg(op : tasmop;_op1,_op2,_op3 : tregister);
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begin
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inherited create(op);
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if (_op1.enum = R_INTREGISTER) and (_op1.number = NR_NO) then
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internalerror(2003031211);
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if (_op2.enum = R_INTREGISTER) and (_op2.number = NR_NO) then
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internalerror(2003031212);
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if (_op3.enum = R_INTREGISTER) and (_op3.number = NR_NO) then
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internalerror(2003031213);
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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_reg_ref_reg(op:tasmop;_op1:TRegister;_op2:TReference;_op3:tregister);
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begin
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inherited create(op);
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if (_op1.enum = R_INTREGISTER) and (_op1.number = NR_NO) then
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internalerror(2003031214);
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if (_op3.enum = R_INTREGISTER) and (_op3.number = NR_NO) then
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internalerror(2003031215);
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{ only allowed to load the address }
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if not(_op2.symaddr in [refs_lo,refs_hi]) then
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internalerror(200305311);
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ops:=3;
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loadreg(0,_op1);
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loadref(1,_op2);
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loadreg(2,_op3);
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end;
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constructor taicpu.op_reg_const_reg(op:tasmop;_op1:TRegister;_op2:aword;_op3:tregister);
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begin
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inherited create(op);
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if (_op1.enum = R_INTREGISTER) and (_op1.number = NR_NO) then
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internalerror(2003031216);
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if (_op3.enum = R_INTREGISTER) and (_op3.number = NR_NO) then
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internalerror(2003031217);
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ops:=3;
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loadreg(0,_op1);
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loadconst(1,_op2);
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loadreg(2,_op3);
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end;
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constructor taicpu.op_cond_sym(op:tasmop;cond:TAsmCond;_op1:tasmsymbol);
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begin
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inherited create(op);
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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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constructor taicpu.op_sym(op : tasmop;_op1 : tasmsymbol);
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begin
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inherited create(op);
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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_sym_ofs(op : tasmop;_op1 : tasmsymbol;_op1ofs:longint);
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begin
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inherited create(op);
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ops:=1;
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loadsymbol(0,_op1,_op1ofs);
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end;
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procedure InitAsm;
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begin
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end;
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procedure DoneAsm;
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begin
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end;
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end.
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{
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$Log$
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Revision 1.28 2003-06-01 01:03:41 peter
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* remove unsupported combinations
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* reg_ref_reg only allowed for refs_lo,refs_hi
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Revision 1.27 2003/05/30 23:57:08 peter
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* more sparc cleanup
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* accumulator removed, splitted in function_return_reg (called) and
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function_result_reg (caller)
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}
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