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+{
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+ Copyright (c) 1998-2002 by Florian Klaempfl
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+
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+ Generate PowerPC assembler for type converting nodes
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+
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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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+
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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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+
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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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+}
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+unit ngppccnv;
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+
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+{$i fpcdefs.inc}
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+
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+interface
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+
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+ uses
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+ node,ncnv,ncgcnv;
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+
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+ type
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+ tgenppctypeconvnode = class(tcgtypeconvnode)
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+ protected
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+ { procedure second_int_to_int;override; }
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+ { procedure second_string_to_string;override; }
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+ { procedure second_cstring_to_pchar;override; }
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+ { procedure second_string_to_chararray;override; }
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+ { procedure second_array_to_pointer;override; }
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+ { function first_int_to_real: tnode; override; }
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+ { procedure second_pointer_to_array;override; }
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+ { procedure second_chararray_to_string;override; }
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+ { procedure second_char_to_string;override; }
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+ { procedure second_int_to_real;override; }
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+ { procedure second_real_to_real;override; }
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+ { procedure second_cord_to_pointer;override; }
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+ { procedure second_proc_to_procvar;override; }
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+ { procedure second_bool_to_int;override; }
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+ procedure second_int_to_bool;override;
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+ { procedure second_load_smallset;override; }
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+ { procedure second_ansistring_to_pchar;override; }
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+ { procedure second_pchar_to_string;override; }
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+ { procedure second_class_to_intf;override; }
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+ { procedure second_char_to_char;override; }
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+ end;
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+
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+
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+implementation
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+
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+ uses
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+ verbose,globtype,globals,systems,
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+ symconst,symdef,aasmbase,aasmtai,aasmdata,
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+ defutil,
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+ cgbase,cgutils,pass_1,pass_2,
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+ ncgutil,procinfo,
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+ cpubase,aasmcpu,
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+ rgobj,tgobj,cgobj;
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+
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+
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+ procedure tgenppctypeconvnode.second_int_to_bool;
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+ var
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+ hreg1,
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+ hreg2 : tregister;
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+{$ifndef cpu64bit}
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+ href : treference;
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+{$endif not cpu64bit}
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+ resflags : tresflags;
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+ opsize : tcgsize;
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+ hlabel, oldTrueLabel, oldFalseLabel : tasmlabel;
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+ begin
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+ oldTrueLabel:=current_procinfo.CurrTrueLabel;
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+ oldFalseLabel:=current_procinfo.CurrFalseLabel;
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+ current_asmdata.getjumplabel(current_procinfo.CurrTrueLabel);
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+ current_asmdata.getjumplabel(current_procinfo.CurrFalseLabel);
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+ secondpass(left);
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+ if codegenerror then
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+ exit;
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+
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+ { byte(boolean) or word(wordbool) or longint(longbool) must }
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+ { be accepted for var parameters }
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+ if (nf_explicit in flags) and
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+ (left.resultdef.size=resultdef.size) and
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+ (left.location.loc in [LOC_REFERENCE,LOC_CREFERENCE,LOC_CREGISTER]) then
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+ begin
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+ current_procinfo.CurrTrueLabel:=oldTrueLabel;
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+ current_procinfo.CurrFalseLabel:=oldFalseLabel;
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+ location_copy(location,left.location);
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+ exit;
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+ end;
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+
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+ location_reset(location,LOC_REGISTER,def_cgsize(resultdef));
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+ opsize := def_cgsize(left.resultdef);
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+ case left.location.loc of
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+ LOC_CREFERENCE,LOC_REFERENCE,LOC_REGISTER,LOC_CREGISTER :
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+ begin
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+ if left.location.loc in [LOC_CREFERENCE,LOC_REFERENCE] then
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+ begin
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+ hreg1:=cg.getintregister(current_asmdata.CurrAsmList,OS_INT);
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+{$ifndef cpu64bit}
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+ if left.location.size in [OS_64,OS_S64] then
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+ begin
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+ cg.a_load_ref_reg(current_asmdata.CurrAsmList,OS_INT,OS_INT,left.location.reference,hreg1);
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+ hreg2:=cg.getintregister(current_asmdata.CurrAsmList,OS_INT);
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+ href:=left.location.reference;
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+ inc(href.offset,4);
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+ cg.a_load_ref_reg(current_asmdata.CurrAsmList,OS_INT,OS_INT,href,hreg2);
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+ cg.a_op_reg_reg_reg(current_asmdata.CurrAsmList,OP_OR,OS_32,hreg1,hreg2,hreg1);
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+ end
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+ else
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+{$endif not cpu64bit}
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+ cg.a_load_ref_reg(current_asmdata.CurrAsmList,opsize,opsize,left.location.reference,hreg1);
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+ end
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+ else
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+ begin
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+{$ifndef cpu64bit}
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+ if left.location.size in [OS_64,OS_S64] then
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+ begin
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+ hreg1:=cg.getintregister(current_asmdata.CurrAsmList,OS_32);
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+ cg.a_op_reg_reg_reg(current_asmdata.CurrAsmList,OP_OR,OS_32,left.location.register64.reghi,left.location.register64.reglo,hreg1);
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+ end
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+ else
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+{$endif not cpu64bit}
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+ hreg1 := left.location.register;
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+ end;
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+ hreg2 := cg.getintregister(current_asmdata.CurrAsmList,OS_INT);
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+ current_asmdata.CurrAsmList.concat(taicpu.op_reg_reg_const(A_SUBIC,hreg2,hreg1,1));
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+ current_asmdata.CurrAsmList.concat(taicpu.op_reg_reg_reg(A_SUBFE,hreg1,hreg2,hreg1));
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+ end;
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+ LOC_FLAGS :
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+ begin
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+ hreg1:=cg.getintregister(current_asmdata.CurrAsmList,OS_INT);
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+ resflags:=left.location.resflags;
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+ cg.g_flags2reg(current_asmdata.CurrAsmList,location.size,resflags,hreg1);
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+ end;
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+ LOC_JUMP :
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+ begin
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+ hreg1:=cg.getintregister(current_asmdata.CurrAsmList,OS_INT);
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+ current_asmdata.getjumplabel(hlabel);
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+ cg.a_label(current_asmdata.CurrAsmList,current_procinfo.CurrTrueLabel);
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+ cg.a_load_const_reg(current_asmdata.CurrAsmList,OS_INT,1,hreg1);
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+ cg.a_jmp_always(current_asmdata.CurrAsmList,hlabel);
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+ cg.a_label(current_asmdata.CurrAsmList,current_procinfo.CurrFalseLabel);
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+ cg.a_load_const_reg(current_asmdata.CurrAsmList,OS_INT,0,hreg1);
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+ cg.a_label(current_asmdata.CurrAsmList,hlabel);
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+ end;
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+ else
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+ internalerror(10062);
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+ end;
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+ location.register := hreg1;
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+ current_procinfo.CurrTrueLabel:=oldTrueLabel;
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+ current_procinfo.CurrFalseLabel:=oldFalseLabel;
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+ end;
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+
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+end.
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Jonas Maebe