diff options
Diffstat (limited to 'compiler/alpha')
-rw-r--r-- | compiler/alpha/aasmcpu.pas | 281 | ||||
-rw-r--r-- | compiler/alpha/agaxpgas.pas | 126 | ||||
-rw-r--r-- | compiler/alpha/aoptcpu.pas | 38 | ||||
-rw-r--r-- | compiler/alpha/aoptcpub.pas | 115 | ||||
-rw-r--r-- | compiler/alpha/aoptcpuc.pas | 38 | ||||
-rw-r--r-- | compiler/alpha/aoptcpud.pas | 39 | ||||
-rw-r--r-- | compiler/alpha/cgcpu.pas | 160 | ||||
-rw-r--r-- | compiler/alpha/cpubase.pas | 457 | ||||
-rw-r--r-- | compiler/alpha/cpuinfo.pas | 68 | ||||
-rw-r--r-- | compiler/alpha/cpunode.pas | 54 | ||||
-rw-r--r-- | compiler/alpha/cpupara.pas | 290 | ||||
-rw-r--r-- | compiler/alpha/cpupi.pas | 43 | ||||
-rw-r--r-- | compiler/alpha/cpuswtch.pas | 121 | ||||
-rw-r--r-- | compiler/alpha/cputarg.pas | 51 | ||||
-rw-r--r-- | compiler/alpha/radirect.pas | 313 | ||||
-rw-r--r-- | compiler/alpha/rasm.pas | 65 | ||||
-rw-r--r-- | compiler/alpha/rgcpu.pas | 69 | ||||
-rw-r--r-- | compiler/alpha/tgcpu.pas | 42 |
18 files changed, 2370 insertions, 0 deletions
diff --git a/compiler/alpha/aasmcpu.pas b/compiler/alpha/aasmcpu.pas new file mode 100644 index 0000000000..10f02190f9 --- /dev/null +++ b/compiler/alpha/aasmcpu.pas @@ -0,0 +1,281 @@ +{ + Copyright (c) 1998-2000 by Florian Klaempfl + + Implements the assembler classes specific for the Alpha + + 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. + + **************************************************************************** +} +{ + Implements the assembler classes specific for the Alpha. +} +unit aasmcpu; + +{$i fpcdefs.inc} + + interface + + uses + aasmbase,globals,verbose, + cpubase,aasmtai; + + type + tai_frame = class(tai) + G,R : TRegister; + LS,LU : longint; + Constructor Create (GP : Tregister; Localsize : Longint; RA : TRegister; L : longint); + end; + + tai_ent = class(tai) + Name : string; + Constructor Create (const ProcName : String); + end; + + + taicpu = class(taicpu_abstract) + constructor op_none(op : tasmop); + + constructor op_reg(op : tasmop;_op1 : tregister); + constructor op_const(op : tasmop;_op1 : longint); + constructor op_ref(op : tasmop;_op1 : preference); + + constructor op_reg_reg(op : tasmop;_op1,_op2 : tregister); + constructor op_reg_ref(op : tasmop;_op1 : tregister;_op2 : preference); + constructor op_reg_const(op:tasmop; _op1: tregister; _op2: longint); + + constructor op_const_reg(op : tasmop;_op1 : longint;_op2 : tregister); + constructor op_const_const(op : tasmop;_op1,_op2 : longint); + constructor op_const_ref(op : tasmop;_op1 : longint;_op2 : preference); + + constructor op_ref_reg(op : tasmop;_op1 : preference;_op2 : tregister); + { this is only allowed if _op1 is an int value (_op1^.isintvalue=true) } + constructor op_ref_ref(op : tasmop;_op1,_op2 : preference); + + constructor op_reg_reg_reg(op : tasmop;_op1,_op2,_op3 : tregister); + constructor op_reg_const_reg(op : tasmop;_op1 : tregister;_op2 : longint;_op3 : tregister); + constructor op_const_ref_reg(op : tasmop;_op1 : longint;_op2 : preference;_op3 : tregister); + constructor op_reg_reg_ref(op : tasmop;_op1,_op2 : tregister; _op3 : preference); + constructor op_const_reg_ref(op : tasmop;_op1 : longint;_op2 : tregister;_op3 : preference); + constructor op_reg_ref_const(op : tasmop;_op1 : tregister;_op2 : preference;_op3 : longint); + + { this is for Jmp instructions } + constructor op_cond_sym(op : tasmop;cond:TAsmCond;_op1 : tasmsymbol); + + constructor op_sym(op : tasmop;_op1 : tasmsymbol); + constructor op_sym_ofs(op : tasmop;_op1 : tasmsymbol;_op1ofs:longint); + constructor op_sym_ofs_reg(op : tasmop;_op1 : tasmsymbol;_op1ofs:longint;_op2 : tregister); + constructor op_sym_ofs_ref(op : tasmop;_op1 : tasmsymbol;_op1ofs:longint;_op2 : preference); + end; + + tai_align = class(tai_align_abstract) + { nothing to add } + end; + + procedure InitAsm; + procedure DoneAsm; + +implementation + + +{***************************************************************************** + taicpu Constructors +*****************************************************************************} + + + constructor taicpu.op_none(op : tasmop); + begin + inherited create(op); + end; + + + constructor taicpu.op_reg(op : tasmop;_op1 : tregister); + begin + inherited create(op); + ops:=1; + end; + + + constructor taicpu.op_const(op : tasmop;_op1 : longint); + begin + inherited create(op); + ops:=1; + end; + + + constructor taicpu.op_ref(op : tasmop;_op1 : preference); + begin + inherited create(op); + ops:=1; + end; + + + constructor taicpu.op_reg_reg(op : tasmop;_op1,_op2 : tregister); + begin + inherited create(op); + ops:=2; + end; + + + constructor taicpu.op_reg_const(op:tasmop; _op1: tregister; _op2: longint); + begin + inherited create(op); + ops:=2; + end; + + + constructor taicpu.op_reg_ref(op : tasmop;_op1 : tregister;_op2 : preference); + begin + inherited create(op); + ops:=2; + end; + + + constructor taicpu.op_const_reg(op : tasmop;_op1 : longint;_op2 : tregister); + begin + inherited create(op); + ops:=2; + end; + + + constructor taicpu.op_const_const(op : tasmop;_op1,_op2 : longint); + begin + inherited create(op); + ops:=2; + end; + + + constructor taicpu.op_const_ref(op : tasmop;_op1 : longint;_op2 : preference); + begin + inherited create(op); + ops:=2; + end; + + constructor taicpu.op_ref_reg(op : tasmop;_op1 : preference;_op2 : tregister); + begin + inherited create(op); + ops:=2; + end; + + + constructor taicpu.op_ref_ref(op : tasmop;_op1,_op2 : preference); + begin + inherited create(op); + ops:=2; + end; + + + constructor taicpu.op_reg_reg_reg(op : tasmop;_op1,_op2,_op3 : tregister); + begin + inherited create(op); + ops:=3; + end; + + constructor taicpu.op_reg_const_reg(op : tasmop;_op1 : tregister;_op2 : longint;_op3 : tregister); + begin + inherited create(op); + ops:=3; + end; + + constructor taicpu.op_reg_reg_ref(op : tasmop;_op1,_op2 : tregister;_op3 : preference); + begin + inherited create(op); + ops:=3; + end; + + constructor taicpu.op_const_ref_reg(op : tasmop;_op1 : longint;_op2 : preference;_op3 : tregister); + begin + inherited create(op); + ops:=3; + end; + + constructor taicpu.op_const_reg_ref(op : tasmop;_op1 : longint;_op2 : tregister;_op3 : preference); + begin + inherited create(op); + ops:=3; + end; + + constructor taicpu.op_reg_ref_const(op : tasmop;_op1 : tregister;_op2 : preference;_op3 : longint); + begin + inherited create(op); + ops:=3; + end; + + + constructor taicpu.op_cond_sym(op : tasmop;cond:TAsmCond;_op1 : tasmsymbol); + begin + inherited create(op); + condition:=cond; + ops:=1; + end; + + + constructor taicpu.op_sym(op : tasmop;_op1 : tasmsymbol); + begin + inherited create(op); + ops:=1; + end; + + + constructor taicpu.op_sym_ofs(op : tasmop;_op1 : tasmsymbol;_op1ofs:longint); + begin + inherited create(op); + ops:=1; + end; + + + constructor taicpu.op_sym_ofs_reg(op : tasmop;_op1 : tasmsymbol;_op1ofs:longint;_op2 : tregister); + begin + inherited create(op); + ops:=2; + end; + + + constructor taicpu.op_sym_ofs_ref(op : tasmop;_op1 : tasmsymbol;_op1ofs:longint;_op2 : preference); + begin + inherited create(op); + ops:=2; + end; + + Constructor tai_frame.create (GP : Tregister; Localsize : Longint; RA : TRegister; L : longint); + + begin + Inherited Create; + typ:=ait_frame; + G:=GP; + R:=RA; + LS:=LocalSize; + LU:=L; + end; + + Constructor tai_ent.Create (const ProcName : String); + + begin + Inherited Create; + typ:=ait_ent; + Name:=ProcName; + end; + + procedure InitAsm; + begin + end; + + + procedure DoneAsm; + begin + end; + + + end. diff --git a/compiler/alpha/agaxpgas.pas b/compiler/alpha/agaxpgas.pas new file mode 100644 index 0000000000..9757226278 --- /dev/null +++ b/compiler/alpha/agaxpgas.pas @@ -0,0 +1,126 @@ +{ + Copyright (c) 1998-2000 by Florian Klaempfl + + This unit implements an asm for the DEC Alpha + + 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 agaxpgas; + + {$i fpcdefs.inc} + + interface + + uses + globals,systems,aasmbase,aasmtai, + aggas,cpubase; + + type + TAXPGNUAssembler=class(TGNUAssembler) + procedure WriteInstruction(hp : tai);override; + end; + + const + gas_reg2str : array[tregister] of string[4] = ( + '', + '','','','','','','','','','', + '','','','','','','','','','', + '','','','','','','','','','', + '','', + '','','','','','','','','','', + '','','','','','','','','','', + '','','','','','','','','','', + '','' + ); + + implementation + + const + op2str : array[tasmop] of string[14] = ( + 'addf','addg','addl','addq', + 'adds','addt','amask','and','beq','bge', + 'bgt','bic','bis','blbc','blbs','ble', + 'blt','bne','br','bsr','call_pal','cmoveq', + 'cmovge','cmovgt','cmovlbc','cmovlbs','cmovle','cmovlt', + 'cmovne','cmpbge','cmpeq','cmpgeq','cmpgle','cmpglt', + 'cmple','cmplt','cmpteq','cmptle','cmptlt','cmptun', + 'cmpule','cmpult','cpys','cpyse','cpysn','ctlz', + 'ctpop','cttz','cvtdg','cvtgd','cvtgf','cvtgq', + 'cvtlq','cvtqf','cvtqg','cvtql','cvtqs','cvtqt', + 'cvtst','cvttq','cvtts','divf','divg','divs', + 'divt','ecb','eqv','excb','extbl','extlh', + 'extll','extqh','extql','extwh','extwl','fbeq', + 'fbge','fbgt','fble','fblt','fbne','fcmoveq', + 'fcmovge','fcmovgt','fcmovle','fcmovlt','fcmovne','fetch', + 'fetch_m','ftois','ftoit','implver','insbl','inslh', + 'insll','insqh','insql','inswh','inswl','itoff', + 'itofs','itoft','jmp','jsr','jsr_coroutine','lda', + 'ldah','ldbu','ldwu','ldf','ldg','ldl', + 'ldl_l','ldq','ldq_l','ldq_u','lds','ldt', + 'maxsb8','maxsw4','maxub8','maxuw4','mb','mf_fpcr', + 'minsb8','minsw4','minub8','minuw4','mskbl','msklh', + 'mskll','mskqh','mskql','mskwh','mskwl','mt_fpcr', + 'mulf','mulg','mull','mulq', + 'muls','mult','ornot','perr','pklb','pkwb', + 'rc','ret','rpcc','rs','s4addl','s4addq', + 's4subl','s4subq','s8addl','s8addq','s8subl','s8subq', + 'sextb','sextw','sll','sqrtf','sqrtg','sqrts', + 'sqrtt','sra','srl','stb','stf','stg', + 'sts','stl','stl_c','stq','stq_c','stq_u', + 'stt','stw','subf','subg','subl', + 'subq','subs','subt','trapb','umulh','unpkbl', + 'unpkbw','wh64','wmb','xor','zap','zapnot', + 'ldgp'); + + procedure TAXPGNUAssembler.WriteInstruction (hp : tai); + begin +(* + op:=paicpu(hp)^.opcode; + calljmp:=is_calljmp(op); + { call maybe not translated to calll } + s:=#9+att_op2str[op]+cond2str[paicpu(hp)^.condition]; + if (not calljmp) and + (not att_nosuffix[op]) and + not( + (paicpu(hp)^.oper[0].typ=top_reg) and + (paicpu(hp)^.oper[0].reg in [R_ST..R_ST7]) + ) then + s:=s+att_opsize2str[paicpu(hp)^.opsize]; + { process operands } + if paicpu(hp)^.ops<>0 then + begin + { call and jmp need an extra handling } + { this code is only called if jmp isn't a labeled instruction } + if calljmp then + s:=s+#9+getopstr_jmp(paicpu(hp)^.oper[0]) + else + begin + for i:=0to paicpu(hp)^.ops-1 do + begin + if i=0 then + sep:=#9 + else + sep:=','; + s:=s+sep+getopstr(paicpu(hp)^.oper[i]) + end; + end; + end; + AsmWriteLn(s); +*) + end; + +end. diff --git a/compiler/alpha/aoptcpu.pas b/compiler/alpha/aoptcpu.pas new file mode 100644 index 0000000000..494edf948c --- /dev/null +++ b/compiler/alpha/aoptcpu.pas @@ -0,0 +1,38 @@ +{ + Copyright (c) 1998-2000 by Jonas Maebe, member of the Free Pascal + Development Team + + This unit implements the Alpha optimizer object + + 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 aoptcpu; + +Interface + +uses cpubase, aoptobj, aoptcpub; + +Type + TAOptCpu = Object(TAoptObj) + { uses the same constructor as TAopObj } + End; + +Implementation + +End. diff --git a/compiler/alpha/aoptcpub.pas b/compiler/alpha/aoptcpub.pas new file mode 100644 index 0000000000..aaad2910c3 --- /dev/null +++ b/compiler/alpha/aoptcpub.pas @@ -0,0 +1,115 @@ + { + Copyright (c) 1998-2000 by Jonas Maebe, member of the Free Pascal + Development Team + + This unit contains several types and constants necessary for the + optimizer to work on the 80x86 architecture + + 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 aoptcpub; { Assembler OPTimizer CPU specific Base } + +{ enable the following define if memory references can have both a base and } +{ index register in 1 operand } + +{$define RefsHaveIndexReg} + +{ enable the following define if memory references can have a scaled index } + +{$define RefsHaveScale} + +{ enable the following define if memory references can have a segment } +{ override } + +{ define RefsHaveSegment} + +Interface + +Uses + CPUAsm,AOptBase; + +Type + +{ type of a normal instruction } + TInstr = Taicpu; + PInstr = ^TInstr; + +{ ************************************************************************* } +{ **************************** TCondRegs ********************************** } +{ ************************************************************************* } +{ Info about the conditional registers } + TCondRegs = Object + Constructor Init; + Destructor Done; + End; + +{ ************************************************************************* } +{ **************************** TAoptBaseCpu ******************************* } +{ ************************************************************************* } + + TAoptBaseCpu = Object(TAoptBase) + End; + + +{ ************************************************************************* } +{ ******************************* Constants ******************************* } +{ ************************************************************************* } +Const + +{ the maximum number of things (registers, memory, ...) a single instruction } +{ changes } + + MaxCh = 3; + +{ the maximum number of operands an instruction has } + + MaxOps = 3; + +{Oper index of operand that contains the source (reference) with a load } +{instruction } + + LoadSrc = 0; + +{Oper index of operand that contains the destination (register) with a load } +{instruction } + + LoadDst = 1; + +{Oper index of operand that contains the source (register) with a store } +{instruction } + + StoreSrc = 0; + +{Oper index of operand that contains the destination (reference) with a load } +{instruction } + + StoreDst = 1; + +Implementation + +{ ************************************************************************* } +{ **************************** TCondRegs ********************************** } +{ ************************************************************************* } +Constructor TCondRegs.init; +Begin +End; + +Destructor TCondRegs.Done; {$ifdef inl} inline; {$endif inl} +Begin +End; + +End. diff --git a/compiler/alpha/aoptcpuc.pas b/compiler/alpha/aoptcpuc.pas new file mode 100644 index 0000000000..121a45370f --- /dev/null +++ b/compiler/alpha/aoptcpuc.pas @@ -0,0 +1,38 @@ + { + Copyright (c) 1998-2000 by Jonas Maebe, member of the Free Pascal + Development Team + + This unit contains the processor specific implementation of the + assembler optimizer common subexpression elimination object. + + 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 aoptcpuc; + +Interface + +Uses + AOptCs; + +Type + TRegInfoCpu = Object(TRegInfo) + End; + + +Implementation + +End. diff --git a/compiler/alpha/aoptcpud.pas b/compiler/alpha/aoptcpud.pas new file mode 100644 index 0000000000..c3ea9fe5f9 --- /dev/null +++ b/compiler/alpha/aoptcpud.pas @@ -0,0 +1,39 @@ +{ + Copyright (c) 1998-2000 by Jonas Maebe, member of the Free Pascal + Development Team + + This unit contains the processor specific implementation of the + assembler optimizer data flow analyzer. + + 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 aoptcpud; + +Interface + +uses + AOptDA; + +Type + PAOptDFACpu = ^TAOptDFACpu; + TAOptDFACpu = Object(TAOptDFA) + End; + +Implementation + + +End. diff --git a/compiler/alpha/cgcpu.pas b/compiler/alpha/cgcpu.pas new file mode 100644 index 0000000000..07f3a9d92f --- /dev/null +++ b/compiler/alpha/cgcpu.pas @@ -0,0 +1,160 @@ +{ + Copyright (c) 1998-2000 by Florian Klaempfl + + This unit implements the code generator for the Alpha + + 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. + + **************************************************************************** +} +{ + This unit implements the code generator for the Alpha. +} +unit cgcpu; + +{$i fpcdefs.inc} + +interface + +uses + cgbase,cgobj,aasmbase,aasmtai,aasmcpu,cginfo,cpubase,cpuinfo; + +type +pcgalpha = ^tcgalpha; +tcgalpha = class(tcg) + procedure a_call_name(list : taasmoutput;const s : string);override; + procedure a_load_const_reg(list : taasmoutput;size : tcgsize;a : aword;register : tregister);override; + procedure a_load_reg_ref(list : taasmoutput;size : tcgsize;register : tregister;const ref : treference);override; + procedure a_load_ref_reg(list : taasmoutput;size : tcgsize;const ref : treference;register : tregister);override; + procedure a_load_reg_reg(list : taasmoutput;fromsize, tosize : tcgsize;reg1,reg2 : tregister);override; + procedure a_cmp_const_reg_label(list : taasmoutput;size : tcgsize;cmp_op : topcmp;a : aword; + reg : tregister; l : tasmlabel);override; + procedure a_cmp_reg_reg_label(list : taasmoutput;size : tcgsize;cmp_op : topcmp;reg1,reg2 : tregister;l : tasmlabel); + procedure a_cmp_reg_ref_label(list : taasmoutput;size : tcgsize;cmp_op : topcmp;reg : tregister;l : tasmlabel); + procedure a_cmp_ref_const_label(list : taasmoutput;size : tcgsize;cmp_op : topcmp;a : aword; + reg : tregister; l : tasmlabel); + procedure a_loadaddr_ref_reg(list : taasmoutput;const ref : treference;r : tregister);override; + procedure g_stackframe_entry(list : taasmoutput;localsize : longint);override; + procedure g_maybe_loadself(list : taasmoutput);override; + procedure g_restore_frame_pointer(list : taasmoutput);override; +end; + +implementation + +uses + globtype,globals; + +procedure tcgalpha.g_stackframe_entry(list : taasmoutput;localsize : longint); + +begin + list.concat(taicpu.op_reg_ref(A_LDGP,Global_pointer,new_reference(R_27,0))); + list.concat(taicpu.op_reg_ref(A_LDA,stack_pointer_reg,new_reference(stack_pointer_reg,-LocalSize))); + If LocalSize<>0 then + list.concat(tai_frame.create(Global_pointer,LocalSize,R_27,0)); + { Always generate a frame pointer. } + list.concat(taicpu.op_reg_reg_reg(A_BIS,stack_pointer_reg,stack_pointer_reg,frame_pointer_reg)); +end; + +procedure g_exitcode(list : taasmoutput;parasize : longint; nostackframe,inlined : boolean); + +begin + { Restore stack pointer from frame pointer } + list.Concat (taicpu.op_reg_reg_reg(A_BIS,frame_pointer_reg,frame_pointer_reg,stack_pointer_reg)); + { Restore previous stack position} + list.Concat (taicpu.op_reg_const_reg(A_ADDQ,stack_pointer_reg,Parasize,stack_pointer_reg)); + { return... } + list.Concat(taicpu.op_reg_ref_const(A_RET,stack_pointer_reg,new_reference(Return_pointer,0),1)); + { end directive + Concat (paiend,init('')); + } +end; + +procedure tcgalpha.a_call_name(list : taasmoutput;const s : string); + + begin + { list^.concat(taicpu,op_sym(A_CALL,S_NO,newasmsymbol(s,AB_EXTERNAL,AT_FUNCTION)))); } + {!!!!!!!!!1 offset is ignored } + abstract; + end; + +procedure tcgalpha.a_load_const_reg(list : taasmoutput;size : tcgsize;a : aword;register : tregister); + +begin +end; + + +procedure tcgalpha.a_load_reg_ref(list : taasmoutput;size : tcgsize;register : tregister;const ref : treference); + +begin +end; + + +procedure tcgalpha.a_load_ref_reg(list : taasmoutput;size : tcgsize;const ref : treference;register : tregister); + +begin +end; + + +procedure tcgalpha.a_load_reg_reg(list : taasmoutput;fromsize, tosize : tcgsize;reg1,reg2 : tregister); + +begin +end; + + +procedure tcgalpha.a_cmp_const_reg_label(list : taasmoutput;size : tcgsize;cmp_op : topcmp;a : aword;reg : tregister; + l : tasmlabel); + +begin +end; + + +procedure tcgalpha.a_cmp_reg_reg_label(list : taasmoutput;size : tcgsize;cmp_op : topcmp;reg1,reg2 : tregister;l : tasmlabel); + +begin +end; + + +procedure tcgalpha.a_cmp_reg_ref_label(list : taasmoutput;size : tcgsize;cmp_op : topcmp;reg : tregister;l : tasmlabel); + +begin +end; + + +procedure tcgalpha.a_cmp_ref_const_label(list : taasmoutput;size : tcgsize;cmp_op : topcmp;a : aword; + reg : tregister; l : tasmlabel); + +begin +end; + + +procedure tcgalpha.a_loadaddr_ref_reg(list : taasmoutput;const ref : treference;r : tregister); + +begin +end; + + +procedure tcgalpha.g_maybe_loadself(list : taasmoutput); + +begin +end; + + +procedure tcgalpha.g_restore_frame_pointer(list : taasmoutput); + +begin +end; + + +end. diff --git a/compiler/alpha/cpubase.pas b/compiler/alpha/cpubase.pas new file mode 100644 index 0000000000..e4ccede6f6 --- /dev/null +++ b/compiler/alpha/cpubase.pas @@ -0,0 +1,457 @@ +{ + Copyright (C) 1998-2000 by Florian Klaempfl + + This unit implements an asmlistitem class for the Alpha architecture. + + 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. + + **************************************************************************** +} +{ + This unit implements an asmlistitem class for the Alpha architecture. +} +unit cpubase; + +{$i fpcdefs.inc} + + interface + + uses + cutils,cclasses,globals,aasmbase,cpuinfo,cginfo; + + type + { all registers } + TRegister = (R_NO, { R_NO is Mandatory, signifies no register } + R_0,R_1,R_2,R_3,R_4,R_5,R_6,R_7,R_8,R_9, + R_10,R_11,R_12,R_13,R_14,R_15,R_16,R_17,R_18,R_19, + R_20,R_21,R_22,R_23,R_24,R_25,R_26,R_27,R_28,R_29, + R_30,R_31, + R_F0,R_F1,R_F2,R_F3,R_F4,R_F5,R_F6,R_F7,R_F8,R_F9, + R_F10,R_F11,R_F12,R_F13,R_F14,R_F15,R_F16,R_F17,R_F18,R_F19, + R_F20,R_F21,R_F22,R_F23,R_F24,R_F25,R_F26,R_F27,R_F28,R_F29, + R_F30,R_F31); + + tasmop = (A_ADDF,A_ADDG,A_ADDL,A_ADDQ, + A_ADDS,A_ADDT,A_AMASK,A_AND,A_BEQ,A_BGE, + A_BGT,A_BIC,A_BIS,A_BLBC,A_BLBS,A_BLE, + A_BLT,A_BNE,A_BR,A_BSR,A_CALL_PAL,A_CMOVEQ, + A_CMOVGE,A_CMOVGT,A_CMOVLBC,A_CMOVLBS,A_CMOVLE,A_CMOVLT, + A_CMOVNE,A_CMPBGE,A_CMPEQ,A_CMPGEQ,A_CMPGLE,A_CMPGLT, + A_CMPLE,A_CMPLT,A_CMPTEQ,A_CMPTLE,A_CMPTLT,A_CMPTUN, + A_CMPULE,A_CMPULT,A_CPYS,A_CPYSE,A_CPYSN,A_CTLZ, + A_CTPOP,A_CTTZ,A_CVTDG,A_CVTGD,A_CVTGF,A_CVTGQ, + A_CVTLQ,A_CVTQF,A_CVTQG,A_CVTQL,A_CVTQS,A_CVTQT, + A_CVTST,A_CVTTQ,A_CVTTS,A_DIVF,A_DIVG,A_DIVS, + A_DIVT,A_ECB,A_EQV,A_EXCB,A_EXTBL,A_EXTLH, + A_EXTLL,A_EXTQH,A_EXTQL,A_EXTWH,A_EXTWL,A_FBEQ, + A_FBGE,A_FBGT,A_FBLE,A_FBLT,A_FBNE,A_FCMOVEQ, + A_FCMOVGE,A_FCMOVGT,A_FCMOVLE,A_FCMOVLT,A_FCMOVNE,A_FETCH, + A_FETCH_M,A_FTOIS,A_FTOIT,A_IMPLVER,A_INSBL,A_INSLH, + A_INSLL,A_INSQH,A_INSQL,A_INSWH,A_INSWL,A_ITOFF, + A_ITOFS,A_ITOFT,A_JMP,A_JSR,A_JSR_COROUTINE,A_LDA, + A_LDAH,A_LDBU,A_LDWU,A_LDF,A_LDG,A_LDL, + A_LDL_L,A_LDQ,A_LDQ_L,A_LDQ_U,A_LDS,A_LDT, + A_MAXSB8,A_MAXSW4,A_MAXUB8,A_MAXUW4,A_MB,A_MF_FPCR, + A_MINSB8,A_MINSW4,A_MINUB8,A_MINUW4,A_MSKBL,A_MSKLH, + A_MSKLL,A_MSKQH,A_MSKQL,A_MSKWH,A_MSKWL,A_MT_FPCR, + A_MULF,A_MULG,A_MULL,A_MULQ, + A_MULS,A_MULT,A_ORNOT,A_PERR,A_PKLB,A_PKWB, + A_RC,A_RET,A_RPCC,A_RS,A_S4ADDL,A_S4ADDQ, + A_S4SUBL,A_S4SUBQ,A_S8ADDL,A_S8ADDQ,A_S8SUBL,A_S8SUBQ, + A_SEXTB,A_SEXTW,A_SLL,A_SQRTF,A_SQRTG,A_SQRTS, + A_SQRTT,A_SRA,A_SRL,A_STB,A_STF,A_STG, + A_STS,A_STL,A_STL_C,A_STQ,A_STQ_C,A_STQ_U, + A_STT,A_STW,A_SUBF,A_SUBG,A_SUBL, + A_SUBQ,A_SUBS,A_SUBT,A_TRAPB,A_UMULH, + A_UNPKBL,A_UNPKBW,A_WH64,A_WMB,A_XOR,A_ZAP, + A_ZAPNOT + { Psuedo code understood by the gnu assembler } + ,A_LDGP); + + const + firstop = low(tasmop); + lastop = high(tasmop); + + std_reg2str : array[tregister] of string[4] = ( + '', + '','','','','','','','','','', + '','','','','','','','','','', + '','','','','','','','','','', + '','', + '','','','','','','','','','', + '','','','','','','','','','', + '','','','','','','','','','', + '','' + ); + + + type + TAsmCond = + ( + C_None,C_A,C_AE,C_B,C_BE,C_C,C_E,C_G,C_GE,C_L,C_LE,C_NA,C_NAE, + C_NB,C_NBE,C_NC,C_NE,C_NG,C_NGE,C_NL,C_NLE,C_NO,C_NP,C_NS,C_NZ,C_O,C_P, + C_PE,C_PO,C_S,C_Z + ); + + TRegisterset = Set of TRegister; + + tregister64 = tregister; + + Const + Firstreg = R_0; + LastReg = R_F31; + + +{***************************************************************************** + Default generic sizes +*****************************************************************************} + + { Defines the default address size for a processor, } + OS_ADDR = OS_64; + { the natural int size for a processor, } + OS_INT = OS_64; + { the maximum float size for a processor, } + OS_FLOAT = OS_F80; + { the size of a vector register for a processor } + OS_VECTOR = OS_M64; + + stack_pointer_reg = R_30; + frame_pointer_reg = R_15; + self_pointer_reg = R_16; + accumulator = R_0; + {the return_result_reg, is used inside the called function to store its return + value when that is a scalar value otherwise a pointer to the address of the + result is placed inside it} + return_result_reg = accumulator; + + {the function_result_reg contains the function result after a call to a scalar + function othewise it contains a pointer to the returned result} + function_result_reg = accumulator; + fpu_result_reg = R_F0; + global_pointer = R_29; + return_pointer = R_26; + { it is used to pass the offset to the destructor helper routine } + vmt_offset_reg = R_1; + + { low and high of the available maximum width integer general purpose } + { registers } + LoGPReg = R_0; + HiGPReg = R_31; + + { low and high of every possible width general purpose register (same as + above on most architctures apart from the 80x86) } + LoReg = R_0; + HiReg = R_31; + + { Constant defining possibly all registers which might require saving } + ALL_REGISTERS = [firstreg..lastreg]; + + general_registers = [R_0..R_31]; + + availabletempregsint = [R_0..R_14,R_16..R_25,R_28]; + availabletempregsfpu = [R_F0..R_F30]; + availabletempregsmm = []; + + intregs = [R_0..R_31]; + usableregsint = []; + c_countusableregsint = 26; + + maxfpuregs = 32; + fpuregs = [R_F0..R_F31]; + usableregsfpu = []; + c_countusableregsfpu = 31; + + mmregs = []; + usableregsmm = []; + c_countusableregsmm = 0; + + max_operands = 4; + + registers_saved_on_cdecl = [R_9..R_14,R_F2..R_F9]; + + firstsaveintreg = R_NO; + lastsaveintreg = R_NO; + firstsavefpureg = R_NO; + lastsavefpureg = R_NO; + firstsavemmreg = R_NO; + lastsavemmreg = R_NO; + maxvarregs = 6; + + varregs : Array [1..maxvarregs] of Tregister = + (R_9,R_10,R_11,R_12,R_13,R_14); + + maxfpuvarregs = 8; + + { Registers which are defined as scratch and no need to save across + routine calls or in assembler blocks. + } + max_scratch_regs = 2; + scratch_regs : array[1..max_scratch_regs] of tregister = (R_1,R_2); + +{***************************************************************************** + GDB Information +*****************************************************************************} + + { Register indexes for stabs information, when some + parameters or variables are stored in registers. + } + stab_regindex : array[tregister] of shortint = + (0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0,0,0,0,0,0,0,0,0, + 0,0 + ); + +{***************************************************************************** + Flags +*****************************************************************************} + type + { The Alpha doesn't have flags but some generic code depends on this type. } + TResFlags = (F_NO); + + + { reference record } + pparareference = ^tparareference; + tparareference = packed record + index : tregister; + offset : longint; + end; + + trefoptions=(ref_none,ref_parafixup,ref_localfixup,ref_selffixup); + + TReference = record + offset : aword; + symbol : tasmsymbol; + base : tregister; + { The index isn't used by the alpha port, but some generic code depends on it } + index : tregister; + is_immediate : boolean; + offsetfixup : word; {needed for inline} + options : trefoptions; + { the boundary to which the reference is surely aligned } + alignment : byte; + end; + PReference = ^TReference; + + TLoc=( + LOC_INVALID, { added for tracking problems} + LOC_CONSTANT, { constant value } + LOC_JUMP, { boolean results only, jump to false or true label } + LOC_FLAGS, { boolean results only, flags are set } + LOC_CREFERENCE, { in memory constant value reference (cannot change) } + LOC_REFERENCE, { in memory value } + LOC_REGISTER, { in a processor register } + LOC_CREGISTER, { Constant register which shouldn't be modified } + LOC_FPUREGISTER, { FPU stack } + LOC_CFPUREGISTER, { if it is a FPU register variable on the fpu stack } + LOC_SSEREGISTER, + LOC_CSSEREGISTER, + LOC_CMMREGISTER, + LOC_MMREGISTER + ); + + { tparamlocation describes where a parameter for a procedure is stored. + References are given from the caller's point of view. The usual + TLocation isn't used, because contains a lot of unnessary fields. + } + tparalocation = packed record + size : TCGSize; + loc : TLoc; + sp_fixup : longint; + case TLoc of + LOC_REFERENCE : (reference : tparareference); + { segment in reference at the same place as in loc_register } + LOC_REGISTER,LOC_CREGISTER : ( + case longint of + 1 : (register,register64.reghi : tregister); + { overlay a register64.reglo } + 2 : (register64.reglo : tregister); + { overlay a 64 Bit register type } + 3 : (reg64 : tregister64); + 4 : (register64 : tregister64); + ); + end; + + tlocation = packed record + loc : TLoc; + size : TCGSize; + case TLoc of + LOC_CONSTANT : ( + case longint of + 1 : (value : AWord); + { can't do this, this layout depends on the host cpu. Use } + { lo(valueqword)/hi(valueqword) instead (JM) } + { 2 : (valuelow, valuehigh:AWord); } + { overlay a complete 64 Bit value } + 3 : (valueqword : qword); + ); + LOC_CREFERENCE, + LOC_REFERENCE : (reference : treference); + { segment in reference at the same place as in loc_register } + LOC_REGISTER,LOC_CREGISTER : ( + case longint of + 1 : (register,register64.reghi,segment : tregister); + { overlay a register64.reglo } + 2 : (register64.reglo : tregister); + { overlay a 64 Bit register type } + 3 : (reg64 : tregister64); + 4 : (register64 : tregister64); + ); + end; + +{***************************************************************************** + Operands +*****************************************************************************} + + + { Types of operand } + toptype=(top_none,top_reg,top_ref,top_const,top_symbol); + + toper=record + ot : longint; + case typ : toptype of + top_none : (); + top_reg : (reg:tregister); + top_ref : (ref:preference); + top_const : (val:longint); + top_symbol : (sym:tasmsymbol;symofs:longint); + end; + + const + { Registers which must be saved when calling a routine declared as + cppdecl, cdecl, stdcall, safecall, palmossyscall. The registers + saved should be the ones as defined in the target ABI and / or GCC. + + This value can be deduced from the CALLED_USED_REGISTERS array in the + GCC source. + } + std_saved_registers = []; + { Required parameter alignment when calling a routine declared as + stdcall and cdecl. The alignment value should be the one defined + by GCC or the target ABI. + + The value of this constant is equal to the constant + PARM_BOUNDARY / BITS_PER_UNIT in the GCC source. + } + std_param_align = 8; + + { offsets for the integer and floating point registers } + INT_REG = 0; + FLOAT_REG = 32; + + { operator qualifiers } + OQ_CHOPPED_ROUNDING = $01; { /C } + OQ_ROUNDING_MODE_DYNAMIC = $02; { /D } + OQ_ROUND_TOWARD_MINUS_INFINITY = $04; { /M } + OQ_INEXACT_RESULT_ENABLE = $08; { /I } + OQ_SOFTWARE_COMPLETION_ENABLE = $10; { /S } + OQ_FLOATING_UNDERFLOW_ENABLE = $20; { /U } + OQ_INTEGER_OVERFLOW_ENABLE = $40; { /V } + + +{***************************************************************************** + Opcode propeties (needed for optimizer) +*****************************************************************************} + +{$ifndef NOOPT} +Type +{What an instruction can change} + TInsChange = (Ch_None); +{$endif} + + +{ resets all values of ref to defaults } +procedure reset_reference(var ref : treference); +{ set mostly used values of a new reference } +function new_reference(base : tregister;offset : longint) : preference; +function newreference(const r : treference) : preference; +procedure disposereference(var r : preference); + +function reg2str(r : tregister) : string; + +{***************************************************************************** + Init/Done +*****************************************************************************} + + procedure InitCpu; + procedure DoneCpu; + +implementation + +uses + verbose; + +function reg2str(r : tregister) : string; + + begin + if r in [R_0..R_31] then + reg2str:='R'+tostr(longint(r)-longint(R_0)) + else if r in [R_F0..R_F31] then + reg2str:='F'+tostr(longint(r)-longint(R_F0)) + else internalerror(38991); + end; + +procedure reset_reference(var ref : treference); +begin + FillChar(ref,sizeof(treference),0); +end; + + +function new_reference(base : tregister;offset : longint) : preference; +var + r : preference; +begin + new(r); + FillChar(r^,sizeof(treference),0); + r^.offset:=offset; + r^.alignment:=8; + new_reference:=r; +end; + +function newreference(const r : treference) : preference; + +var + p : preference; +begin + new(p); + p^:=r; + newreference:=p; +end; + +procedure disposereference(var r : preference); + +begin + dispose(r); + r:=Nil; +end; + +{***************************************************************************** + Init/Done +*****************************************************************************} + + procedure InitCpu; + begin + end; + + procedure DoneCpu; + begin + end; + +end. diff --git a/compiler/alpha/cpuinfo.pas b/compiler/alpha/cpuinfo.pas new file mode 100644 index 0000000000..cd02692320 --- /dev/null +++ b/compiler/alpha/cpuinfo.pas @@ -0,0 +1,68 @@ +{ + This file is part of the Free Pascal run time library. + Copyright (c) 1998-2000 by the Free Pascal development team + + Basic Processor information about the Alpha + + See the file COPYING.FPC, included in this distribution, + for details about the copyright. + + 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. + + **********************************************************************} +{ + Basic Processor information about the Alpha +} +Unit CPUInfo; + +{$i fpcdefs.inc} + +Interface + +Type + { Natural integer register type and size for the target machine } +{$ifdef FPC} + AWord = Qword; +{$else FPC} + AWord = Longint; +{$endif FPC} + PAWord = ^AWord; + + { This must be an ordinal type with the same size as a pointer + Note: Must be unsigned! Otherwise, ugly code like + pointer(-1) will result in a pointer with the value + $fffffffffffffff on a 32bit machine if the compiler uses + int64 constants internally (JM) } + TConstPtrUInt = qword; + + bestreal = extended; + ts32real = single; + ts64real = double; + ts80real = extended; + ts64comp = extended; + + pbestreal=^bestreal; + + { possible supported processors for this target } + tprocessors = + (no_processor, + ClassEV7, + ClassEV8 + ); + +Const + { Size of native extended type } + extended_size = 16; + {# Size of a pointer } + sizeof(aint) = 8; + {# Size of a multimedia register } + mmreg_size = 8; + + { target cpu string (used by compiler options) } + target_cpu_string = 'alpha'; + +Implementation + +end. diff --git a/compiler/alpha/cpunode.pas b/compiler/alpha/cpunode.pas new file mode 100644 index 0000000000..c62bc9c303 --- /dev/null +++ b/compiler/alpha/cpunode.pas @@ -0,0 +1,54 @@ +{ + Copyright (c) 2000-2002 by Florian Klaempfl + + Imports the Alpha code generator + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + + **************************************************************************** +} +{ + This unit imports the Alpha code generator. +} +unit cpunode; + +{$i fpcdefs.inc} + + interface + + implementation + + uses + { generic nodes } + ncgbas,ncgld,ncgflw,ncgcnv,ncgmem,ncgcon,ncgcal,ncgset,ncginl + { to be able to only parts of the generic code, + the processor specific nodes must be included + after the generic one (FK) + } +// naxpadd, +// naxpcal, +// naxpcon, +// naxpflw, +// naxpmem, +// naxpset, +// naxpinl, +// nppcopt, + { this not really a node } +// naxpobj, +// naxpmat, +// naxpcnv + ; + +end. diff --git a/compiler/alpha/cpupara.pas b/compiler/alpha/cpupara.pas new file mode 100644 index 0000000000..ff19c1648c --- /dev/null +++ b/compiler/alpha/cpupara.pas @@ -0,0 +1,290 @@ +{ + Copyright (c) 2002 by Florian Klaempfl + + Alpha specific calling conventions + + 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. + **************************************************************************** +} +{ Alpha specific calling conventions are handled by this unit +} +unit cpupara; + +{$i fpcdefs.inc} + + interface + + uses + cpubase, + symconst,symbase,symtype,symdef,paramgr; + + type + talphaparamanager = class(tparamanager) + function getintparaloc(nr : longint) : tparalocation;override; + procedure create_param_loc_info(p : tabstractprocdef);override; + function getfuncretparaloc(p : tabstractprocdef) : tparalocation;override; + end; + + implementation + + uses + verbose, + globtype, + cpuinfo,cginfo,cgbase, + defbase; + + function talphaparamanager.getintparaloc(nr : longint) : tparalocation; + + begin + fillchar(result,sizeof(tparalocation),0); + if nr<1 then + internalerror(2002070801) + else if nr<=8 then + begin + result.loc:=LOC_REGISTER; + result.register:=tregister(longint(R_2)+nr); + end + else + begin + result.loc:=LOC_REFERENCE; + result.reference.index:=stack_pointer_reg; + result.reference.offset:=(nr-8)*4; + end; + end; + + function getparaloc(p : tdef) : tloc; + + begin + { Later, the LOC_REFERENCE is in most cases changed into LOC_REGISTER + if push_addr_param for the def is true + } + case p.deftype of + orddef: + getparaloc:=LOC_REGISTER; + floatdef: + getparaloc:=LOC_FPUREGISTER; + enumdef: + getparaloc:=LOC_REGISTER; + pointerdef: + getparaloc:=LOC_REGISTER; + formaldef: + getparaloc:=LOC_REGISTER; + classrefdef: + getparaloc:=LOC_REGISTER; + recorddef: + getparaloc:=LOC_REFERENCE; + objectdef: + if is_object(p) then + getparaloc:=LOC_REFERENCE + else + getparaloc:=LOC_REGISTER; + stringdef: + if is_shortstring(p) or is_longstring(p) then + getparaloc:=LOC_REFERENCE + else + getparaloc:=LOC_REGISTER; + procvardef: + if (po_methodpointer in tprocvardef(p).procoptions) then + getparaloc:=LOC_REFERENCE + else + getparaloc:=LOC_REGISTER; + filedef: + getparaloc:=LOC_REGISTER; + arraydef: + getparaloc:=LOC_REFERENCE; + setdef: + if is_smallset(p) then + getparaloc:=LOC_REGISTER + else + getparaloc:=LOC_REFERENCE; + variantdef: + getparaloc:=LOC_REFERENCE; + { avoid problems with errornous definitions } + errordef: + getparaloc:=LOC_REGISTER; + else + internalerror(2002071001); + end; + end; + + procedure talphaparamanager.create_param_loc_info(p : tabstractprocdef); + + var + nextintreg,nextfloatreg,nextmmreg : tregister; + stack_offset : aword; + hp : tparaitem; + loc : tloc; + is_64bit: boolean; + + begin + nextintreg:=R_3; + nextfloatreg:=R_F1; + // nextmmreg:=R_M1; + stack_offset:=0; + { pointer for structured results ? } + if not is_void(p.rettype.def) then + begin + if not(ret_in_reg(p.rettype.def)) then + inc(nextintreg); + end; + + { frame pointer for nested procedures? } + { inc(nextintreg); } + { constructor? } + { destructor? } + hp:=tparaitem(p.para.last); + while assigned(hp) do + begin + loc:=getparaloc(hp.paratype.def); + hp.paraloc.sp_fixup:=0; + case loc of + LOC_REGISTER: + begin + hp.paraloc.size := def_cgsize(hp.paratype.def); + { for things like formaldef } + if hp.paraloc.size = OS_NO then + hp.paraloc.size := OS_ADDR; + is_64bit := hp.paraloc.size in [OS_64,OS_S64]; + if nextintreg<=tregister(ord(R_10)-ord(is_64bit)) then + begin + hp.paraloc.loc:=LOC_REGISTER; + hp.paraloc.register64.reglo:=nextintreg; + inc(nextintreg); + if is_64bit then + begin + hp.paraloc.register64.reghi:=nextintreg; + inc(nextintreg); + end; + end + else + begin + nextintreg := R_11; + hp.paraloc.loc:=LOC_REFERENCE; + hp.paraloc.reference.index:=stack_pointer_reg; + hp.paraloc.reference.offset:=stack_offset; + if not is_64bit then + inc(stack_offset,4) + else + inc(stack_offset,8); + end; + end; + LOC_FPUREGISTER: + begin + if hp.paratyp in [vs_var,vs_out] then + begin + if nextintreg<=R_10 then + begin + hp.paraloc.size:=OS_ADDR; + hp.paraloc.loc:=LOC_REGISTER; + hp.paraloc.register:=nextintreg; + inc(nextintreg); + end + else + begin + {!!!!!!!} + hp.paraloc.size:=def_cgsize(hp.paratype.def); + internalerror(2002071006); + end; + end + else if nextfloatreg<=R_F10 then + begin + hp.paraloc.size:=def_cgsize(hp.paratype.def); + hp.paraloc.loc:=LOC_FPUREGISTER; + hp.paraloc.register:=nextfloatreg; + inc(nextfloatreg); + end + else + begin + {!!!!!!!} + hp.paraloc.size:=def_cgsize(hp.paratype.def); + internalerror(2002071004); + end; + end; + LOC_REFERENCE: + begin + hp.paraloc.size:=OS_ADDR; + if push_addr_param(hp.paratype.def,p.proccalloption in [pocall_cdecl,pocall_cppdecl]) or (hp.paratyp in [vs_var,vs_out]) then + begin + if nextintreg<=R_10 then + begin + hp.paraloc.loc:=LOC_REGISTER; + hp.paraloc.register:=nextintreg; + inc(nextintreg); + end + else + begin + hp.paraloc.loc:=LOC_REFERENCE; + hp.paraloc.reference.index:=stack_pointer_reg; + hp.paraloc.reference.offset:=stack_offset; + inc(stack_offset,4); + end; + end + else + begin + hp.paraloc.loc:=LOC_REFERENCE; + hp.paraloc.reference.index:=stack_pointer_reg; + hp.paraloc.reference.offset:=stack_offset; + inc(stack_offset,hp.paratype.def.size); + end; + end; + else + internalerror(2002071002); + end; + hp:=tparaitem(hp.previous); + end; + end; + + function talphaparamanager.getfuncretparaloc(p : tabstractprocdef) : tparalocation; + begin + case p.rettype.def.deftype of + orddef, + enumdef: + begin + getfuncretparaloc.loc:=LOC_REGISTER; + getfuncretparaloc.register:=R_3; + getfuncretparaloc.size:=def_cgsize(p.rettype.def); + if getfuncretparaloc.size in [OS_S64,OS_64] then + getfuncretparaloc.register64.reghi:=R_4; + end; + floatdef: + begin + getfuncretparaloc.loc:=LOC_FPUREGISTER; + getfuncretparaloc.register:=R_F1; + getfuncretparaloc.size:=def_cgsize(p.rettype.def); + end; + pointerdef, + formaldef, + classrefdef, + recorddef, + objectdef, + stringdef, + procvardef, + filedef, + arraydef, + errordef: + begin + getfuncretparaloc.loc:=LOC_REGISTER; + getfuncretparaloc.register:=R_3; + getfuncretparaloc.size:=OS_ADDR; + end; + else + internalerror(2002090903); + end; + end; + + +begin + paramanager:=talphaparamanager.create; +end. diff --git a/compiler/alpha/cpupi.pas b/compiler/alpha/cpupi.pas new file mode 100644 index 0000000000..6b1470cde0 --- /dev/null +++ b/compiler/alpha/cpupi.pas @@ -0,0 +1,43 @@ +{ + Copyright (c) 2002 by Florian Klaempfl + + This unit contains the CPU specific part of tprocinfo + + 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. + + **************************************************************************** +} +{ + This unit contains the CPU specific part of tprocinfo. +} +unit cpupi; + +{$i fpcdefs.inc} + + interface + + uses + cgbase; + + type + talphaprocinfo = class(tprocinfo) + end; + + + implementation + +begin + cprocinfo:=talphaprocinfo; +end. diff --git a/compiler/alpha/cpuswtch.pas b/compiler/alpha/cpuswtch.pas new file mode 100644 index 0000000000..b84dca877d --- /dev/null +++ b/compiler/alpha/cpuswtch.pas @@ -0,0 +1,121 @@ +{ + Copyright (c) 1998-2002 by Florian Klaempfl, Pierre Muller + + This units interprets the commandline options which are Alpha specific. + + 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. + + **************************************************************************** +} +{ + This units interprets the commandline options which are Alpha specific. +} +unit cpuswtch; + +{$i fpcdefs.inc} + +interface + +uses + options; + +type + toptionalpha = class(toption) + procedure interpret_proc_specific_options(const opt:string);override; + end; + +implementation + +uses + cutils,globtype,systems,globals; + +procedure toptionalpha.interpret_proc_specific_options(const opt:string); +var + more: string; + j: longint; +begin + More:=Upper(copy(opt,3,length(opt)-2)); + case opt[2] of + 'O' : Begin + j := 3; + While (j <= Length(Opt)) Do + Begin + case opt[j] of + '-' : + begin + initglobalswitches:=initglobalswitches-[cs_optimize,cs_fastoptimize,cs_slowoptimize,cs_littlesize, + cs_regalloc,cs_uncertainopts]; + FillChar(ParaAlignment,sizeof(ParaAlignment),0); + end; + 'a' : + begin + UpdateAlignmentStr(Copy(Opt,j+1,255),ParaAlignment); + j:=length(Opt); + end; + 'g' : initglobalswitches:=initglobalswitches+[cs_littlesize]; + 'G' : initglobalswitches:=initglobalswitches-[cs_littlesize]; + 'r' : + begin + initglobalswitches:=initglobalswitches+[cs_regalloc]; + Simplify_ppu:=false; + end; + 'u' : initglobalswitches:=initglobalswitches+[cs_uncertainopts]; + '1' : initglobalswitches:=initglobalswitches-[cs_fastoptimize,cs_slowoptimize]+[cs_optimize]; + '2' : initglobalswitches:=initglobalswitches-[cs_slowoptimize]+[cs_optimize,cs_fastoptimize]; + '3' : initglobalswitches:=initglobalswitches+[cs_optimize,cs_fastoptimize,cs_slowoptimize]; +{$ifdef dummy} + 'p' : + Begin + If j < Length(Opt) Then + Begin + Case opt[j+1] Of + '1': initoptprocessor := Class386; + '2': initoptprocessor := ClassP5; + '3': initoptprocessor := ClassP6 + Else IllegalPara(Opt) + End; + Inc(j); + End + Else IllegalPara(opt) + End; +{$endif dummy} + else IllegalPara(opt); + End; + Inc(j) + end; + end; +{$ifdef dummy} + 'R' : begin + if More='GAS' then + initasmmode:=asmmode_ppc_gas + else + if More='MOTOROLA' then + initasmmode:=asmmode_ppc_motorola + else + if More='DIRECT' then + initasmmode:=asmmode_direct + else + IllegalPara(opt); + end; +{$endif dummy} + else + IllegalPara(opt); + end; +end; + + +initialization + coption:=toptionalpha; +end. diff --git a/compiler/alpha/cputarg.pas b/compiler/alpha/cputarg.pas new file mode 100644 index 0000000000..f7e38332c7 --- /dev/null +++ b/compiler/alpha/cputarg.pas @@ -0,0 +1,51 @@ +{ + Copyright (c) 2001-2002 by Peter Vreman + + Includes the powerpc dependent target units + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + + **************************************************************************** +} +unit cputarg; + +{$i fpcdefs.inc} + +interface + + +implementation + + uses + systems { prevent a syntax error when nothing is included } + +{************************************** + Targets +**************************************} + + {$ifndef NOTARGETLINUX} + ,t_linux + {$endif} + +{************************************** + Assemblers +**************************************} + + {$ifndef NOAGAXPGAS} + ,agaxpgas + {$endif} + ; + +end. diff --git a/compiler/alpha/radirect.pas b/compiler/alpha/radirect.pas new file mode 100644 index 0000000000..68f56bc747 --- /dev/null +++ b/compiler/alpha/radirect.pas @@ -0,0 +1,313 @@ +{ + Copyright (c) 1998-2002 by Florian Klaempfl + + Reads inline Alpha assembler and writes the lines direct to the output + + 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. + + **************************************************************************** +} +{ + This unit reads Alpha inline assembler and writes the lines direct to the output file. +} +unit radirect; + +{$i fpcdefs.inc} + +interface + + uses + node; + + function assemble : tnode; + + implementation + + uses + { common } + cutils, + { global } + globals,verbose, + systems, + { aasm } + aasmbase,aasmtai,aasmcpu, + { symtable } + symconst,symbase,symtype,symsym,symtable,defbase, + { pass 1 } + nbas, + { parser } + scanner, + { codegen } + cgbase, + { constants } + agaxpgas, + cpubase + ; + + function assemble : tnode; + + var + retstr,s,hs : string; + c : char; + ende : boolean; + srsym,sym : tsym; + srsymtable : tsymtable; + code : TAAsmoutput; + i,l : longint; + + procedure writeasmline; + var + i : longint; + begin + i:=length(s); + while (i>0) and (s[i] in [' ',#9]) do + dec(i); + s[0]:=chr(i); + if s<>'' then + code.concat(Tai_direct.Create(strpnew(s))); + { consider it set function set if the offset was loaded } + if assigned(aktprocdef.funcretsym) and + (pos(retstr,upper(s))>0) then + tfuncretsym(aktprocdef.funcretsym).funcretstate:=vs_assigned; + s:=''; + end; + + begin + ende:=false; + s:=''; + if assigned(aktprocdef.funcretsym) and + is_fpu(aktprocdef.rettype.def) then + tfuncretsym(aktprocdef.funcretsym).funcretstate:=vs_assigned; + { !!!!! + if (not is_void(aktprocdef.rettype.def)) then + retstr:=upper(tostr(procinfo^.return_offset)+'('+gas_reg2str[procinfo^.framepointer]+')') + else + } + retstr:=''; + + c:=current_scanner.asmgetchar; + code:=TAAsmoutput.Create; + while not(ende) do + begin + { wrong placement + current_scanner.gettokenpos; } + case c of + 'A'..'Z','a'..'z','_': + begin + current_scanner.gettokenpos; + i:=0; + hs:=''; + while ((ord(c)>=ord('A')) and (ord(c)<=ord('Z'))) + or ((ord(c)>=ord('a')) and (ord(c)<=ord('z'))) + or ((ord(c)>=ord('0')) and (ord(c)<=ord('9'))) + or (c='_') do + begin + inc(i); + hs[i]:=c; + c:=current_scanner.asmgetchar; + end; + hs[0]:=chr(i); + if upper(hs)='END' then + ende:=true + else + begin + if c=':' then + begin + searchsym(upper(hs),srsym,srsymtable); + if srsym<>nil then + if (srsym.typ = labelsym) then + Begin + hs:=tlabelsym(srsym).lab.name; + tlabelsym(srsym).lab.is_set:=true; + end + else + Message(asmr_w_using_defined_as_local); + end + else + { access to local variables } + if assigned(aktprocdef) then + begin + { I don't know yet, what the ppc port requires } + { we'll see how things settle down } + + { is the last written character an special } + { char ? } + { !!! + if (s[length(s)]='%') and + ret_in_acc(aktprocdef.rettype.def) and + ((pos('AX',upper(hs))>0) or + (pos('AL',upper(hs))>0)) then + tfuncretsym(aktprocdef.funcretsym).funcretstate:=vs_assigned; + } + if ((s[length(s)]<>'0') or (hs[1]<>'x')) then + begin + if assigned(aktprocdef.localst) and + (lexlevel >= normal_function_level) then + sym:=tsym(aktprocdef.localst.search(upper(hs))) + else + sym:=nil; + if assigned(sym) then + begin + if (sym.typ=labelsym) then + Begin + hs:=tlabelsym(sym).lab.name; + end + else if sym.typ=varsym then + begin + if (vo_is_external in tvarsym(sym).varoptions) then + hs:=tvarsym(sym).mangledname + else + begin + if (tvarsym(sym).reg<>R_NO) then + hs:=gas_reg2str[procinfo.framepointer] + else + hs:=tostr(tvarsym(sym).address)+ + '('+gas_reg2str[procinfo.framepointer]+')'; + end; + end + else + { call to local function } + if (sym.typ=procsym) and (pos('BL',upper(s))>0) then + hs:=tprocsym(sym).first_procdef.mangledname; + end + else + begin + if assigned(aktprocdef.parast) then + sym:=tsym(aktprocdef.parast.search(upper(hs))) + else + sym:=nil; + if assigned(sym) then + begin + if sym.typ=varsym then + begin + l:=tvarsym(sym).address; + { set offset } + inc(l,aktprocdef.parast.address_fixup); + hs:=tostr(l)+'('+gas_reg2str[procinfo.framepointer]+')'; + if pos(',',s) > 0 then + tvarsym(sym).varstate:=vs_used; + end; + end + { I added that but it creates a problem in line.ppi + because there is a local label wbuffer and + a static variable WBUFFER ... + what would you decide, florian ?} + else + begin + searchsym(upper(hs),sym,srsymtable); + if assigned(sym) and (sym.owner.symtabletype in [globalsymtable,staticsymtable]) then + begin + case sym.typ of + varsym : + begin + Message2(asmr_h_direct_global_to_mangled,hs,tvarsym(sym).mangledname); + hs:=tvarsym(sym).mangledname; + inc(tvarsym(sym).refs); + end; + typedconstsym : + begin + Message2(asmr_h_direct_global_to_mangled,hs,ttypedconstsym(sym).mangledname); + hs:=ttypedconstsym(sym).mangledname; + end; + procsym : + begin + { procs can be called or the address can be loaded } + if (pos('BL',upper(s))>0) {or (pos('LEA',upper(s))>0))} then + begin + if Tprocsym(sym).procdef_count>1 then + Message1(asmr_w_direct_global_is_overloaded_func,hs); + Message2(asmr_h_direct_global_to_mangled,hs,tprocsym(sym).first_procdef.mangledname); + hs:=tprocsym(sym).first_procdef.mangledname; + end; + end; + else + Message(asmr_e_wrong_sym_type); + end; + end +{$ifdef dummy} + else if upper(hs)='__SELF' then + begin + if assigned(procinfo^._class) then + hs:=tostr(procinfo^.selfpointer_offset)+ + '('+gas_reg2str[procinfo^.framepointer]+')' + else + Message(asmr_e_cannot_use_SELF_outside_a_method); + end + else if upper(hs)='__RESULT' then + begin + if (not is_void(aktprocdef.rettype.def)) then + hs:=retstr + else + Message(asmr_e_void_function); + end + { implement old stack/frame pointer access for nested procedures } + {!!!! + else if upper(hs)='__OLDSP' then + begin + { complicate to check there } + { we do it: } + if lexlevel>normal_function_level then + hs:=tostr(procinfo^.framepointer_offset)+ + '('+gas_reg2str[procinfo^.framepointer]+')' + else + Message(asmr_e_cannot_use_OLDEBP_outside_nested_procedure); + end; + } + end; +{$endif dummy} + end; + end; + end; + end; + s:=s+hs; + end; + end; + '{',';',#10,#13: + begin + if pos(retstr,s) > 0 then + tfuncretsym(aktprocdef.funcretsym).funcretstate:=vs_assigned; + writeasmline; + c:=current_scanner.asmgetchar; + end; + #26: + Message(scan_f_end_of_file); + else + begin + current_scanner.gettokenpos; + inc(byte(s[0])); + s[length(s)]:=c; + c:=current_scanner.asmgetchar; + end; + end; + end; + writeasmline; + assemble:=casmnode.create(code); + end; + +{***************************************************************************** + Initialize +*****************************************************************************} + +const + asmmode_ppc_direct_info : tasmmodeinfo = + ( + id : asmmode_direct; + idtxt : 'DIRECT' + ); + +initialization + RegisterAsmMode(asmmode_ppc_direct_info); + +end. diff --git a/compiler/alpha/rasm.pas b/compiler/alpha/rasm.pas new file mode 100644 index 0000000000..0d715b5d87 --- /dev/null +++ b/compiler/alpha/rasm.pas @@ -0,0 +1,65 @@ +{ + Copyright (c) 1998-2002 by The Free Pascal Team + + This unit does the parsing process for the inline assembler + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + + **************************************************************************** +} +{ + This unit does the parsing process for the inline assembler. +} +Unit Rasm; + +{$i fpcdefs.inc} + +Interface + +uses + node; + + { + This routine is called to parse the instructions in assembler + blocks. It returns a complete list of directive and instructions + } + function assemble: tnode; + + +Implementation + + uses + { common } + cutils,cclasses, + { global } + globtype,globals,verbose, + systems, + { aasm } + cpubase,aasmbase,aasmtai,aasmcpu, + { symtable } + symconst,symbase,symtype,symsym,symtable, + { pass 1 } + nbas, + { parser } + scanner + // ,rautils + ; + + function assemble : tnode; + begin + end; + +Begin +end. diff --git a/compiler/alpha/rgcpu.pas b/compiler/alpha/rgcpu.pas new file mode 100644 index 0000000000..23a1ca06e5 --- /dev/null +++ b/compiler/alpha/rgcpu.pas @@ -0,0 +1,69 @@ +{ + Copyright (c) 1998-2002 by Florian Klaempfl + + This unit implements the powerpc specific class for the register + allocator + + 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 rgcpu; + +{$i fpcdefs.inc} + + interface + + uses + aasmbase,aasmtai, + cpubase, + rgobj; + + type + trgcpu = class(trgobj) + function getcpuregisterint(list: taasmoutput; reg: tregister): tregister; override; + procedure ungetregisterint(list: taasmoutput; reg: tregister); override; + end; + + implementation + + uses + cgobj; + + function trgcpu.getcpuregisterint(list: taasmoutput; reg: tregister): tregister; + + begin + if reg = R_0 then + begin + cg.a_reg_alloc(list,reg); + result := reg; + end + else result := inherited getcpuregisterint(list,reg); + end; + + + procedure trgcpu.ungetregisterint(list: taasmoutput; reg: tregister); + + begin + if reg = R_0 then + cg.a_reg_dealloc(list,reg) + else + inherited ungetregisterint(list,reg); + end; + +initialization + rg := trgcpu.create; +end. diff --git a/compiler/alpha/tgcpu.pas b/compiler/alpha/tgcpu.pas new file mode 100644 index 0000000000..90c4ac5175 --- /dev/null +++ b/compiler/alpha/tgcpu.pas @@ -0,0 +1,42 @@ +{ + Copyright (C) 1998-2000 by Florian Klaempfl + + This unit handles the temporary variables stuff for Alpha + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + + **************************************************************************** +} +{ + This unit handles the temporary variables stuff for Alpha. +} +unit tgcpu; + +{$i fpcdefs.inc} + + interface + + uses + tgobj; + + type + ttgalpha = class(ttgobj) + end; + +implementation + +begin + tg:=ttgalpha.create; +end. |