diff --git a/compiler/new/cg386.pas b/compiler/new/cg386.pas new file mode 100644 index 0000000000..d5f58faef2 --- /dev/null +++ b/compiler/new/cg386.pas @@ -0,0 +1,83 @@ +{ + $Id$ + Copyright (c) 1993-98 by Florian Klaempfl + + This unit implements the code generator for the i386 + + 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 cg386; + + interface + + uses + cgobj; + + type + pcg386 = ^tcg386; + + tcg386 = object(tcg) + procedure a_push_reg(list : paasmoutput;r : tregister);virtual; + procedure a_call_name(list : paasmoutput;const s : string; + offset : longint);virtual; + + procedure a_load_const8_ref(list : paasmoutput;b : byte;ref : treference);virtual; + procedure a_load_const16_ref(list : paasmoutput;w : word;ref : treference);virtual; + procedure a_load_const32_ref(list : paasmoutput;l : longint;ref : treference);virtual; + procedure a_load_const64_ref(list : paasmoutput;{ q : qword; }ref : treference);virtual; + + procedure g_stackframe_entry(list : paasmoutput;localsize : longint); + end; + + implementation + + procedure tcg386.g_stackframe_entry(list : paasmoutput;localsize : longint); + + begin + if localsize<>0 then + begin + if (cs_littlesize in aktglobalswitches) and (stackframe<=65535) then + list^.insert(new(pai386,op_const_const(A_ENTER,S_NO,stackframe,0))) + else + begin + g_stackframe_entry(list,stackframe); + list^.concat(new(pai386,op_reg(A_PUSH,S_L,R_EBP))); + list^.concat(new(pai386,op_reg_reg(A_MOV,S_L,R_ESP,R_EBP))); + list^.concat(new(pai386,op_const_reg(A_SUB,S_L,localsize,R_ESP))); + end; + end + else + begin + list^.concat(new(pai386,op_reg(A_PUSH,S_L,R_EBP))); + list^.concat(new(pai386,op_reg_reg(A_MOV,S_L,R_ESP,R_EBP))); + end; + end; + + procedure tcg386.a_call_name(list : paasmoutput;const s : string; + offset : longint); + + begin + list^.concat(new(pai386,op_csymbol(A_CALL,S_NO,newcsymbol(s,offset)))); + end; + +end. +{ + $Log$ + Revision 1.1 1998-12-15 22:17:02 florian + * first version + +} \ No newline at end of file