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580 lines
18 KiB
ObjectPascal
580 lines
18 KiB
ObjectPascal
{
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Copyright (c) 1998-2001 by Florian Klaempfl and Pierre Muller
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m68k family assembler instructions
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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****************************************************************************
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}
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unit aasmcpu;
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{$i fpcdefs.inc}
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interface
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uses
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cclasses,aasmtai,aasmdata,aasmsym,
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aasmbase,globals,verbose,symtype,
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cpubase,cpuinfo,cgbase,cgutils;
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const
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{ "mov reg,reg" source operand number }
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O_MOV_SOURCE = 0;
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{ "mov reg,reg" source operand number }
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O_MOV_DEST = 1;
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type
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taicpu = class(tai_cpu_abstract_sym)
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opsize : topsize;
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constructor op_none(op : tasmop);
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constructor op_none(op : tasmop;_size : topsize);
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constructor op_reg(op : tasmop;_size : topsize;_op1 : tregister);
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constructor op_const(op : tasmop;_size : topsize;_op1 : longint);
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constructor op_ref(op : tasmop;_size : topsize;_op1 : treference);
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constructor op_reg_reg(op : tasmop;_size : topsize;_op1,_op2 : tregister);
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constructor op_reg_ref(op : tasmop;_size : topsize;_op1 : tregister;_op2 : treference);
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constructor op_reg_const(op:tasmop; _size: topsize; _op1: tregister; _op2: longint);
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constructor op_const_reg(op : tasmop;_size : topsize;_op1 : longint;_op2 : tregister);
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constructor op_const_const(op : tasmop;_size : topsize;_op1,_op2 : longint);
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constructor op_const_ref(op : tasmop;_size : topsize;_op1 : longint;_op2 : treference);
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constructor op_ref_reg(op : tasmop;_size : topsize;_op1 : treference;_op2 : tregister);
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{ this is only allowed if _op1 is an int value (_op1^.isintvalue=true) }
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constructor op_ref_ref(op : tasmop;_size : topsize;_op1,_op2 : treference);
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constructor op_reg_reg_reg(op : tasmop;_size : topsize;_op1,_op2,_op3 : tregister);
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constructor op_const_reg_reg(op : tasmop;_size : topsize;_op1 : longint;_op2 : tregister;_op3 : tregister);
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constructor op_const_ref_reg(op : tasmop;_size : topsize;_op1 : longint;_op2 : treference;_op3 : tregister);
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constructor op_reg_reg_ref(op : tasmop;_size : topsize;_op1,_op2 : tregister; _op3 : treference);
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constructor op_const_reg_ref(op : tasmop;_size : topsize;_op1 : longint;_op2 : tregister;_op3 : treference);
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constructor op_reg_regset(op: tasmop; _size : topsize; _op1: tregister;const _op2: tcpuregisterset);
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constructor op_regset_reg(op: tasmop; _size : topsize;const _op1: tcpuregisterset; _op2: tregister);
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constructor op_ref_regset(op: tasmop; _size : topsize; _op1: treference;const _op2: tcpuregisterset);
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constructor op_regset_ref(op: tasmop; _size : topsize;const _op1: tcpuregisterset; _op2: treference);
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{ this is for Jmp instructions }
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constructor op_cond_sym(op : tasmop;cond:TAsmCond;_size : topsize;_op1 : tasmsymbol);
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constructor op_sym(op : tasmop;_size : topsize;_op1 : tasmsymbol);
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{ for DBxx opcodes }
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constructor op_reg_sym(op: tasmop; _size : topsize; _op1: tregister; _op2 :tasmsymbol);
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constructor op_sym_ofs_reg(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint;_op2 : tregister);
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constructor op_sym_ofs(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint);
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constructor op_sym_ofs_ref(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint;const _op2 : treference);
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function is_same_reg_move(regtype: Tregistertype):boolean;override;
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function spilling_get_operation_type(opnr: longint): topertype;override;
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private
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procedure loadregset(opidx:longint;const s:tcpuregisterset);
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procedure init(_size : topsize); { this need to be called by all constructor }
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end;
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tai_align = class(tai_align_abstract)
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{ nothing to add }
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end;
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procedure InitAsm;
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procedure DoneAsm;
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function spilling_create_load(const ref:treference;r:tregister):Taicpu;
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function spilling_create_store(r:tregister; const ref:treference):Taicpu;
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implementation
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uses
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globtype;
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{ TODO: FIX ME!! useful for debug, remove it, same table as in ag68kgas }
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const
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gas_op2str:op2strtable=
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{ warning: CPU32 opcodes are not fully compatible with the MC68020. }
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{ 68000 only opcodes }
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( '',
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'abcd','add','adda','addi','addq','addx','and','andi',
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'asl','asr','bcc','bcs','beq','bge','bgt','bhi',
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'ble','bls','blt','bmi','bne','bpl','bvc','bvs',
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'bchg','bclr','bra','bset','bsr','btst','chk',
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'clr','cmp','cmpa','cmpi','cmpm','dbcc','dbcs','dbeq','dbge',
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'dbgt','dbhi','dble','dbls','dblt','dbmi','dbne','dbra',
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'dbpl','dbt','dbvc','dbvs','dbf','divs','divu',
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'eor','eori','exg','illegal','ext','jmp','jsr',
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'lea','link','lsl','lsr','move','movea','movei','moveq',
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'movem','movep','muls','mulu','nbcd','neg','negx',
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'nop','not','or','ori','pea','rol','ror','roxl',
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'roxr','rtr','rts','sbcd','scc','scs','seq','sge',
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'sgt','shi','sle','sls','slt','smi','sne',
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'spl','st','svc','svs','sf','sub','suba','subi','subq',
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'subx','swap','tas','trap','trapv','tst','unlk',
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'rte','reset','stop',
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{ mc68010 instructions }
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'bkpt','movec','moves','rtd',
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{ mc68020 instructions }
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'bfchg','bfclr','bfexts','bfextu','bfffo',
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'bfins','bfset','bftst','callm','cas','cas2',
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'chk2','cmp2','divsl','divul','extb','pack','rtm',
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'trapcc','tracs','trapeq','trapf','trapge','trapgt',
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'traphi','traple','trapls','traplt','trapmi','trapne',
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'trappl','trapt','trapvc','trapvs','unpk',
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{ fpu processor instructions - directly supported only. }
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{ ieee aware and misc. condition codes not supported }
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'fabs','fadd',
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'fbeq','fbne','fbngt','fbgt','fbge','fbnge',
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'fblt','fbnlt','fble','fbgl','fbngl','fbgle','fbngle',
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'fdbeq','fdbne','fdbgt','fdbngt','fdbge','fdbnge',
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'fdblt','fdbnlt','fdble','fdbgl','fdbngl','fdbgle','fdbngle',
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'fseq','fsne','fsgt','fsngt','fsge','fsnge',
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'fslt','fsnlt','fsle','fsgl','fsngl','fsgle','fsngle',
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'fcmp','fdiv','fmove','fmovem',
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'fmul','fneg','fnop','fsqrt','fsub','fsgldiv',
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'fsflmul','ftst',
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'ftrapeq','ftrapne','ftrapgt','ftrapngt','ftrapge','ftrapnge',
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'ftraplt','ftrapnlt','ftraple','ftrapgl','ftrapngl','ftrapgle','ftrapngle',
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{ protected instructions }
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'cprestore','cpsave',
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{ fpu unit protected instructions }
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{ and 68030/68851 common mmu instructions }
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{ (this may include 68040 mmu instructions) }
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'frestore','fsave','pflush','pflusha','pload','pmove','ptest',
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{ useful for assembly language output }
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'label','db','s','b','fb');
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{*****************************************************************************
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Taicpu Constructors
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*****************************************************************************}
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procedure taicpu.loadregset(opidx:longint;const s:tcpuregisterset);
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var
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i : byte;
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begin
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allocate_oper(opidx+1);
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with oper[opidx]^ do
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begin
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if typ<>top_regset then
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clearop(opidx);
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new(regset);
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regset^:=s;
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typ:=top_regset;
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for i:=RS_D0 to RS_D7 do
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begin
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if assigned(add_reg_instruction_hook) and (i in regset^) then
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add_reg_instruction_hook(self,newreg(R_INTREGISTER,i,R_SUBWHOLE));
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end;
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for i:=RS_A0 to RS_SP do
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begin
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if assigned(add_reg_instruction_hook) and (i in regset^) then
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add_reg_instruction_hook(self,newreg(R_ADDRESSREGISTER,i,R_SUBWHOLE));
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end;
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end;
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end;
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procedure taicpu.init(_size : topsize);
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begin
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typ:=ait_instruction;
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is_jmp:=false;
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opsize:=_size;
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ops:=0;
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end;
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constructor taicpu.op_none(op : tasmop);
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begin
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inherited create(op);
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init(S_NO);
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end;
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constructor taicpu.op_none(op : tasmop;_size : topsize);
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begin
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inherited create(op);
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init(_size);
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end;
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constructor taicpu.op_reg(op : tasmop;_size : topsize;_op1 : tregister);
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begin
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inherited create(op);
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init(_size);
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ops:=1;
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loadreg(0,_op1);
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end;
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constructor taicpu.op_const(op : tasmop;_size : topsize;_op1 : longint);
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begin
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inherited create(op);
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init(_size);
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ops:=1;
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loadconst(0,aword(_op1));
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end;
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constructor taicpu.op_ref(op : tasmop;_size : topsize;_op1 : treference);
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begin
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inherited create(op);
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init(_size);
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ops:=1;
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loadref(0,_op1);
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end;
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constructor taicpu.op_reg_reg(op : tasmop;_size : topsize;_op1,_op2 : tregister);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadreg(0,_op1);
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loadreg(1,_op2);
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end;
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constructor taicpu.op_reg_const(op:tasmop; _size: topsize; _op1: tregister; _op2: longint);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadreg(0,_op1);
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loadconst(1,aword(_op2));
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end;
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constructor taicpu.op_reg_ref(op : tasmop;_size : topsize;_op1 : tregister;_op2 : treference);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadreg(0,_op1);
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loadref(1,_op2);
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end;
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constructor taicpu.op_const_reg(op : tasmop;_size : topsize;_op1 : longint;_op2 : tregister);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadconst(0,aword(_op1));
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loadreg(1,_op2);
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end;
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constructor taicpu.op_const_const(op : tasmop;_size : topsize;_op1,_op2 : longint);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadconst(0,aword(_op1));
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loadconst(1,aword(_op2));
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end;
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constructor taicpu.op_const_ref(op : tasmop;_size : topsize;_op1 : longint;_op2 : treference);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadconst(0,aword(_op1));
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loadref(1,_op2);
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end;
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constructor taicpu.op_ref_reg(op : tasmop;_size : topsize;_op1 : treference;_op2 : tregister);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadref(0,_op1);
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loadreg(1,_op2);
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end;
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constructor taicpu.op_ref_ref(op : tasmop;_size : topsize;_op1,_op2 : treference);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadref(0,_op1);
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loadref(1,_op2);
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end;
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constructor taicpu.op_reg_reg_reg(op : tasmop;_size : topsize;_op1,_op2,_op3 : tregister);
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begin
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inherited create(op);
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init(_size);
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ops:=3;
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loadreg(0,_op1);
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loadreg(1,_op2);
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loadreg(2,_op3);
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end;
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constructor taicpu.op_const_reg_reg(op : tasmop;_size : topsize;_op1 : longint;_op2 : tregister;_op3 : tregister);
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begin
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inherited create(op);
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init(_size);
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ops:=3;
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loadconst(0,aword(_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_reg_ref(op : tasmop;_size : topsize;_op1,_op2 : tregister;_op3 : treference);
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begin
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inherited create(op);
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init(_size);
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ops:=3;
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loadreg(0,_op1);
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loadreg(1,_op2);
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loadref(2,_op3);
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end;
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constructor taicpu.op_const_ref_reg(op : tasmop;_size : topsize;_op1 : longint;_op2 : treference;_op3 : tregister);
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begin
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inherited create(op);
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init(_size);
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ops:=3;
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loadconst(0,aword(_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_const_reg_ref(op : tasmop;_size : topsize;_op1 : longint;_op2 : tregister;_op3 : treference);
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begin
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inherited create(op);
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init(_size);
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ops:=3;
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loadconst(0,aword(_op1));
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loadreg(1,_op2);
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loadref(2,_op3);
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end;
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constructor taicpu.op_ref_regset(op: tasmop; _size : topsize; _op1: treference;const _op2: tcpuregisterset);
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Begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadref(0,_op1);
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loadregset(1,_op2);
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end;
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constructor taicpu.op_regset_ref(op: tasmop; _size : topsize;const _op1: tcpuregisterset; _op2: treference);
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Begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadregset(0,_op1);
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loadref(1,_op2);
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End;
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constructor taicpu.op_reg_regset(op: tasmop; _size : topsize; _op1: tregister;const _op2: tcpuregisterset);
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Begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadreg(0,_op1);
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loadregset(1,_op2);
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end;
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constructor taicpu.op_regset_reg(op: tasmop; _size : topsize;const _op1: tcpuregisterset; _op2: tregister);
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Begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadregset(0,_op1);
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loadreg(1,_op2);
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End;
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constructor taicpu.op_sym(op : tasmop;_size : topsize;_op1 : tasmsymbol);
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begin
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inherited create(op);
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init(_size);
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ops:=1;
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loadsymbol(0,_op1,0);
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end;
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constructor taicpu.op_reg_sym(op: tasmop; _size : topsize; _op1: tregister; _op2 :tasmsymbol);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadreg(0,_op1);
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loadsymbol(1,_op2,0);
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end;
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constructor taicpu.op_sym_ofs_ref(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint;const _op2 : treference);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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loadsymbol(0,_op1,_op1ofs);
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loadref(1,_op2);
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end;
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constructor taicpu.op_sym_ofs(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint);
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begin
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inherited create(op);
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init(_size);
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ops:=1;
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loadsymbol(0,_op1,_op1ofs);
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end;
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constructor taicpu.op_sym_ofs_reg(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint;_op2 : tregister);
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begin
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inherited create(op);
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init(_size);
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ops:=2;
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if ((op >= A_DBCC) and (op <= A_DBF))
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or ((op >= A_FDBEQ) and (op <= A_FDBNGLE)) then
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begin
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loadreg(0,_op2);
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loadsymbol(1,_op1,_op1ofs);
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end
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else
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begin
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loadsymbol(0,_op1,_op1ofs);
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loadreg(1,_op2);
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end;
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end;
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constructor taicpu.op_cond_sym(op : tasmop;cond:TAsmCond;_size : topsize;_op1 : tasmsymbol);
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begin
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|
inherited create(op);
|
|
init(_size);
|
|
condition:=cond;
|
|
ops:=1;
|
|
loadsymbol(0,_op1,0);
|
|
end;
|
|
|
|
|
|
function taicpu.is_same_reg_move(regtype: Tregistertype):boolean;
|
|
begin
|
|
result:=(((opcode=A_MOVE) or (opcode=A_EXG)) and
|
|
(regtype = R_INTREGISTER) and
|
|
(ops=2) and
|
|
(oper[0]^.typ=top_reg) and
|
|
(oper[1]^.typ=top_reg) and
|
|
(oper[0]^.reg=oper[1]^.reg)
|
|
) or
|
|
(((opcode=A_MOVE) or (opcode=A_EXG) or (opcode=A_MOVEA)) and
|
|
(regtype = R_ADDRESSREGISTER) and
|
|
(ops=2) and
|
|
(oper[0]^.typ=top_reg) and
|
|
(oper[1]^.typ=top_reg) and
|
|
(oper[0]^.reg=oper[1]^.reg)
|
|
) or
|
|
((opcode=A_FMOVE) and
|
|
(regtype = R_FPUREGISTER) and
|
|
(ops=2) and
|
|
(oper[0]^.typ=top_reg) and
|
|
(oper[1]^.typ=top_reg) and
|
|
(oper[0]^.reg=oper[1]^.reg)
|
|
);
|
|
end;
|
|
|
|
|
|
function taicpu.spilling_get_operation_type(opnr: longint): topertype;
|
|
begin
|
|
case opcode of
|
|
A_MOVE, A_MOVEQ, A_ADD, A_ADDQ, A_ADDX, A_SUB, A_SUBQ,
|
|
A_AND, A_LSR, A_LSL, A_ASR, A_ASL, A_EOR, A_EORI, A_OR:
|
|
if opnr=1 then begin
|
|
result:=operand_write;
|
|
end else begin
|
|
result:=operand_read;
|
|
end;
|
|
A_TST,A_CMP,A_CMPI:
|
|
result:=operand_read;
|
|
A_CLR, A_SXX:
|
|
result:=operand_write;
|
|
A_NEG, A_EXT, A_EXTB, A_NOT:
|
|
result:=operand_readwrite;
|
|
else begin
|
|
{ TODO: FIX ME!!! remove ugly debug code ... }
|
|
writeln('M68K: unknown opcode when spilling: ',gas_op2str[opcode]);
|
|
internalerror(200404091);
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
function spilling_create_load(const ref:treference;r:tregister):Taicpu;
|
|
begin
|
|
case getregtype(r) of
|
|
R_INTREGISTER :
|
|
result:=taicpu.op_ref_reg(A_MOVE,S_L,ref,r);
|
|
R_ADDRESSREGISTER :
|
|
result:=taicpu.op_ref_reg(A_MOVE,S_L,ref,r);
|
|
R_FPUREGISTER :
|
|
// no need to handle sizes here
|
|
result:=taicpu.op_ref_reg(A_FMOVE,S_FS,ref,r);
|
|
else
|
|
internalerror(200602011);
|
|
end;
|
|
end;
|
|
|
|
|
|
function spilling_create_store(r:tregister; const ref:treference):Taicpu;
|
|
begin
|
|
case getregtype(r) of
|
|
R_INTREGISTER :
|
|
result:=taicpu.op_reg_ref(A_MOVE,S_L,r,ref);
|
|
R_ADDRESSREGISTER :
|
|
result:=taicpu.op_reg_ref(A_MOVE,S_L,r,ref);
|
|
R_FPUREGISTER :
|
|
// no need to handle sizes here
|
|
result:=taicpu.op_reg_ref(A_FMOVE,S_FS,r,ref);
|
|
else
|
|
internalerror(200602012);
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure InitAsm;
|
|
begin
|
|
end;
|
|
|
|
|
|
procedure DoneAsm;
|
|
begin
|
|
end;
|
|
|
|
|
|
end.
|