mirror of
https://gitlab.com/freepascal.org/fpc/source.git
synced 2025-10-31 13:31:40 +01:00
580 lines
18 KiB
ObjectPascal
580 lines
18 KiB
ObjectPascal
{
|
|
Copyright (c) 1998-2001 by Florian Klaempfl and Pierre Muller
|
|
|
|
m68k family assembler instructions
|
|
|
|
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 aasmcpu;
|
|
|
|
{$i fpcdefs.inc}
|
|
|
|
interface
|
|
|
|
uses
|
|
cclasses,aasmtai,aasmdata,aasmsym,
|
|
aasmbase,globals,verbose,symtype,
|
|
cpubase,cpuinfo,cgbase,cgutils;
|
|
|
|
|
|
const
|
|
{ "mov reg,reg" source operand number }
|
|
O_MOV_SOURCE = 0;
|
|
{ "mov reg,reg" source operand number }
|
|
O_MOV_DEST = 1;
|
|
type
|
|
|
|
taicpu = class(tai_cpu_abstract_sym)
|
|
opsize : topsize;
|
|
constructor op_none(op : tasmop);
|
|
constructor op_none(op : tasmop;_size : topsize);
|
|
|
|
constructor op_reg(op : tasmop;_size : topsize;_op1 : tregister);
|
|
constructor op_const(op : tasmop;_size : topsize;_op1 : longint);
|
|
constructor op_ref(op : tasmop;_size : topsize;_op1 : treference);
|
|
|
|
constructor op_reg_reg(op : tasmop;_size : topsize;_op1,_op2 : tregister);
|
|
constructor op_reg_ref(op : tasmop;_size : topsize;_op1 : tregister;_op2 : treference);
|
|
constructor op_reg_const(op:tasmop; _size: topsize; _op1: tregister; _op2: longint);
|
|
|
|
constructor op_const_reg(op : tasmop;_size : topsize;_op1 : longint;_op2 : tregister);
|
|
constructor op_const_const(op : tasmop;_size : topsize;_op1,_op2 : longint);
|
|
constructor op_const_ref(op : tasmop;_size : topsize;_op1 : longint;_op2 : treference);
|
|
|
|
constructor op_ref_reg(op : tasmop;_size : topsize;_op1 : treference;_op2 : tregister);
|
|
{ this is only allowed if _op1 is an int value (_op1^.isintvalue=true) }
|
|
constructor op_ref_ref(op : tasmop;_size : topsize;_op1,_op2 : treference);
|
|
|
|
constructor op_reg_reg_reg(op : tasmop;_size : topsize;_op1,_op2,_op3 : tregister);
|
|
constructor op_const_reg_reg(op : tasmop;_size : topsize;_op1 : longint;_op2 : tregister;_op3 : tregister);
|
|
constructor op_const_ref_reg(op : tasmop;_size : topsize;_op1 : longint;_op2 : treference;_op3 : tregister);
|
|
constructor op_reg_reg_ref(op : tasmop;_size : topsize;_op1,_op2 : tregister; _op3 : treference);
|
|
constructor op_const_reg_ref(op : tasmop;_size : topsize;_op1 : longint;_op2 : tregister;_op3 : treference);
|
|
|
|
constructor op_reg_regset(op: tasmop; _size : topsize; _op1: tregister;const _op2: tcpuregisterset);
|
|
constructor op_regset_reg(op: tasmop; _size : topsize;const _op1: tcpuregisterset; _op2: tregister);
|
|
|
|
constructor op_ref_regset(op: tasmop; _size : topsize; _op1: treference;const _op2: tcpuregisterset);
|
|
constructor op_regset_ref(op: tasmop; _size : topsize;const _op1: tcpuregisterset; _op2: treference);
|
|
|
|
{ this is for Jmp instructions }
|
|
constructor op_cond_sym(op : tasmop;cond:TAsmCond;_size : topsize;_op1 : tasmsymbol);
|
|
|
|
constructor op_sym(op : tasmop;_size : topsize;_op1 : tasmsymbol);
|
|
{ for DBxx opcodes }
|
|
constructor op_reg_sym(op: tasmop; _size : topsize; _op1: tregister; _op2 :tasmsymbol);
|
|
constructor op_sym_ofs_reg(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint;_op2 : tregister);
|
|
|
|
constructor op_sym_ofs(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint);
|
|
constructor op_sym_ofs_ref(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint;const _op2 : treference);
|
|
|
|
function is_same_reg_move(regtype: Tregistertype):boolean;override;
|
|
function spilling_get_operation_type(opnr: longint): topertype;override;
|
|
|
|
private
|
|
procedure loadregset(opidx:longint;const s:tcpuregisterset);
|
|
procedure init(_size : topsize); { this need to be called by all constructor }
|
|
end;
|
|
|
|
|
|
tai_align = class(tai_align_abstract)
|
|
{ nothing to add }
|
|
end;
|
|
|
|
procedure InitAsm;
|
|
procedure DoneAsm;
|
|
|
|
function spilling_create_load(const ref:treference;r:tregister):Taicpu;
|
|
function spilling_create_store(r:tregister; const ref:treference):Taicpu;
|
|
|
|
implementation
|
|
|
|
uses
|
|
globtype;
|
|
|
|
|
|
{ TODO: FIX ME!! useful for debug, remove it, same table as in ag68kgas }
|
|
const
|
|
gas_op2str:op2strtable=
|
|
{ warning: CPU32 opcodes are not fully compatible with the MC68020. }
|
|
{ 68000 only opcodes }
|
|
( '',
|
|
'abcd','add','adda','addi','addq','addx','and','andi',
|
|
'asl','asr','bcc','bcs','beq','bge','bgt','bhi',
|
|
'ble','bls','blt','bmi','bne','bpl','bvc','bvs',
|
|
'bchg','bclr','bra','bset','bsr','btst','chk',
|
|
'clr','cmp','cmpa','cmpi','cmpm','dbcc','dbcs','dbeq','dbge',
|
|
'dbgt','dbhi','dble','dbls','dblt','dbmi','dbne','dbra',
|
|
'dbpl','dbt','dbvc','dbvs','dbf','divs','divu',
|
|
'eor','eori','exg','illegal','ext','jmp','jsr',
|
|
'lea','link','lsl','lsr','move','movea','movei','moveq',
|
|
'movem','movep','muls','mulu','nbcd','neg','negx',
|
|
'nop','not','or','ori','pea','rol','ror','roxl',
|
|
'roxr','rtr','rts','sbcd','scc','scs','seq','sge',
|
|
'sgt','shi','sle','sls','slt','smi','sne',
|
|
'spl','st','svc','svs','sf','sub','suba','subi','subq',
|
|
'subx','swap','tas','trap','trapv','tst','unlk',
|
|
'rte','reset','stop',
|
|
{ mc68010 instructions }
|
|
'bkpt','movec','moves','rtd',
|
|
{ mc68020 instructions }
|
|
'bfchg','bfclr','bfexts','bfextu','bfffo',
|
|
'bfins','bfset','bftst','callm','cas','cas2',
|
|
'chk2','cmp2','divsl','divul','extb','pack','rtm',
|
|
'trapcc','tracs','trapeq','trapf','trapge','trapgt',
|
|
'traphi','traple','trapls','traplt','trapmi','trapne',
|
|
'trappl','trapt','trapvc','trapvs','unpk',
|
|
{ fpu processor instructions - directly supported only. }
|
|
{ ieee aware and misc. condition codes not supported }
|
|
'fabs','fadd',
|
|
'fbeq','fbne','fbngt','fbgt','fbge','fbnge',
|
|
'fblt','fbnlt','fble','fbgl','fbngl','fbgle','fbngle',
|
|
'fdbeq','fdbne','fdbgt','fdbngt','fdbge','fdbnge',
|
|
'fdblt','fdbnlt','fdble','fdbgl','fdbngl','fdbgle','fdbngle',
|
|
'fseq','fsne','fsgt','fsngt','fsge','fsnge',
|
|
'fslt','fsnlt','fsle','fsgl','fsngl','fsgle','fsngle',
|
|
'fcmp','fdiv','fmove','fmovem',
|
|
'fmul','fneg','fnop','fsqrt','fsub','fsgldiv',
|
|
'fsflmul','ftst',
|
|
'ftrapeq','ftrapne','ftrapgt','ftrapngt','ftrapge','ftrapnge',
|
|
'ftraplt','ftrapnlt','ftraple','ftrapgl','ftrapngl','ftrapgle','ftrapngle',
|
|
{ protected instructions }
|
|
'cprestore','cpsave',
|
|
{ fpu unit protected instructions }
|
|
{ and 68030/68851 common mmu instructions }
|
|
{ (this may include 68040 mmu instructions) }
|
|
'frestore','fsave','pflush','pflusha','pload','pmove','ptest',
|
|
{ useful for assembly language output }
|
|
'label','db','s','b','fb');
|
|
|
|
|
|
{*****************************************************************************
|
|
Taicpu Constructors
|
|
*****************************************************************************}
|
|
|
|
|
|
|
|
procedure taicpu.loadregset(opidx:longint;const s:tcpuregisterset);
|
|
var
|
|
i : byte;
|
|
begin
|
|
allocate_oper(opidx+1);
|
|
with oper[opidx]^ do
|
|
begin
|
|
if typ<>top_regset then
|
|
clearop(opidx);
|
|
new(regset);
|
|
regset^:=s;
|
|
typ:=top_regset;
|
|
for i:=RS_D0 to RS_D7 do
|
|
begin
|
|
if assigned(add_reg_instruction_hook) and (i in regset^) then
|
|
add_reg_instruction_hook(self,newreg(R_INTREGISTER,i,R_SUBWHOLE));
|
|
end;
|
|
for i:=RS_A0 to RS_SP do
|
|
begin
|
|
if assigned(add_reg_instruction_hook) and (i in regset^) then
|
|
add_reg_instruction_hook(self,newreg(R_ADDRESSREGISTER,i,R_SUBWHOLE));
|
|
end;
|
|
end;
|
|
end;
|
|
|
|
|
|
procedure taicpu.init(_size : topsize);
|
|
begin
|
|
typ:=ait_instruction;
|
|
is_jmp:=false;
|
|
opsize:=_size;
|
|
ops:=0;
|
|
end;
|
|
|
|
|
|
constructor taicpu.op_none(op : tasmop);
|
|
begin
|
|
inherited create(op);
|
|
init(S_NO);
|
|
end;
|
|
|
|
|
|
constructor taicpu.op_none(op : tasmop;_size : topsize);
|
|
begin
|
|
inherited create(op);
|
|
init(_size);
|
|
end;
|
|
|
|
|
|
constructor taicpu.op_reg(op : tasmop;_size : topsize;_op1 : tregister);
|
|
begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=1;
|
|
loadreg(0,_op1);
|
|
end;
|
|
|
|
|
|
constructor taicpu.op_const(op : tasmop;_size : topsize;_op1 : longint);
|
|
begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=1;
|
|
loadconst(0,aword(_op1));
|
|
end;
|
|
|
|
|
|
constructor taicpu.op_ref(op : tasmop;_size : topsize;_op1 : treference);
|
|
begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=1;
|
|
loadref(0,_op1);
|
|
end;
|
|
|
|
|
|
constructor taicpu.op_reg_reg(op : tasmop;_size : topsize;_op1,_op2 : tregister);
|
|
begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=2;
|
|
loadreg(0,_op1);
|
|
loadreg(1,_op2);
|
|
end;
|
|
|
|
|
|
constructor taicpu.op_reg_const(op:tasmop; _size: topsize; _op1: tregister; _op2: longint);
|
|
begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=2;
|
|
loadreg(0,_op1);
|
|
loadconst(1,aword(_op2));
|
|
end;
|
|
|
|
|
|
constructor taicpu.op_reg_ref(op : tasmop;_size : topsize;_op1 : tregister;_op2 : treference);
|
|
begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=2;
|
|
loadreg(0,_op1);
|
|
loadref(1,_op2);
|
|
end;
|
|
|
|
|
|
constructor taicpu.op_const_reg(op : tasmop;_size : topsize;_op1 : longint;_op2 : tregister);
|
|
begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=2;
|
|
loadconst(0,aword(_op1));
|
|
loadreg(1,_op2);
|
|
end;
|
|
|
|
|
|
constructor taicpu.op_const_const(op : tasmop;_size : topsize;_op1,_op2 : longint);
|
|
begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=2;
|
|
loadconst(0,aword(_op1));
|
|
loadconst(1,aword(_op2));
|
|
end;
|
|
|
|
|
|
constructor taicpu.op_const_ref(op : tasmop;_size : topsize;_op1 : longint;_op2 : treference);
|
|
begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=2;
|
|
loadconst(0,aword(_op1));
|
|
loadref(1,_op2);
|
|
end;
|
|
|
|
|
|
constructor taicpu.op_ref_reg(op : tasmop;_size : topsize;_op1 : treference;_op2 : tregister);
|
|
begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=2;
|
|
loadref(0,_op1);
|
|
loadreg(1,_op2);
|
|
end;
|
|
|
|
|
|
constructor taicpu.op_ref_ref(op : tasmop;_size : topsize;_op1,_op2 : treference);
|
|
begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=2;
|
|
loadref(0,_op1);
|
|
loadref(1,_op2);
|
|
end;
|
|
|
|
|
|
constructor taicpu.op_reg_reg_reg(op : tasmop;_size : topsize;_op1,_op2,_op3 : tregister);
|
|
begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=3;
|
|
loadreg(0,_op1);
|
|
loadreg(1,_op2);
|
|
loadreg(2,_op3);
|
|
end;
|
|
|
|
constructor taicpu.op_const_reg_reg(op : tasmop;_size : topsize;_op1 : longint;_op2 : tregister;_op3 : tregister);
|
|
begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=3;
|
|
loadconst(0,aword(_op1));
|
|
loadreg(1,_op2);
|
|
loadreg(2,_op3);
|
|
end;
|
|
|
|
constructor taicpu.op_reg_reg_ref(op : tasmop;_size : topsize;_op1,_op2 : tregister;_op3 : treference);
|
|
begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=3;
|
|
loadreg(0,_op1);
|
|
loadreg(1,_op2);
|
|
loadref(2,_op3);
|
|
end;
|
|
|
|
|
|
constructor taicpu.op_const_ref_reg(op : tasmop;_size : topsize;_op1 : longint;_op2 : treference;_op3 : tregister);
|
|
begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=3;
|
|
loadconst(0,aword(_op1));
|
|
loadref(1,_op2);
|
|
loadreg(2,_op3);
|
|
end;
|
|
|
|
|
|
constructor taicpu.op_const_reg_ref(op : tasmop;_size : topsize;_op1 : longint;_op2 : tregister;_op3 : treference);
|
|
begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=3;
|
|
loadconst(0,aword(_op1));
|
|
loadreg(1,_op2);
|
|
loadref(2,_op3);
|
|
end;
|
|
|
|
|
|
constructor taicpu.op_ref_regset(op: tasmop; _size : topsize; _op1: treference;const _op2: tcpuregisterset);
|
|
Begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=2;
|
|
loadref(0,_op1);
|
|
loadregset(1,_op2);
|
|
end;
|
|
|
|
constructor taicpu.op_regset_ref(op: tasmop; _size : topsize;const _op1: tcpuregisterset; _op2: treference);
|
|
Begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=2;
|
|
loadregset(0,_op1);
|
|
loadref(1,_op2);
|
|
End;
|
|
|
|
|
|
|
|
constructor taicpu.op_reg_regset(op: tasmop; _size : topsize; _op1: tregister;const _op2: tcpuregisterset);
|
|
Begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=2;
|
|
loadreg(0,_op1);
|
|
loadregset(1,_op2);
|
|
end;
|
|
|
|
|
|
constructor taicpu.op_regset_reg(op: tasmop; _size : topsize;const _op1: tcpuregisterset; _op2: tregister);
|
|
Begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=2;
|
|
loadregset(0,_op1);
|
|
loadreg(1,_op2);
|
|
End;
|
|
|
|
|
|
constructor taicpu.op_sym(op : tasmop;_size : topsize;_op1 : tasmsymbol);
|
|
begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=1;
|
|
loadsymbol(0,_op1,0);
|
|
end;
|
|
|
|
|
|
constructor taicpu.op_reg_sym(op: tasmop; _size : topsize; _op1: tregister; _op2 :tasmsymbol);
|
|
begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=2;
|
|
loadreg(0,_op1);
|
|
loadsymbol(1,_op2,0);
|
|
end;
|
|
|
|
|
|
constructor taicpu.op_sym_ofs_ref(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint;const _op2 : treference);
|
|
begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=2;
|
|
loadsymbol(0,_op1,_op1ofs);
|
|
loadref(1,_op2);
|
|
end;
|
|
|
|
|
|
constructor taicpu.op_sym_ofs(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint);
|
|
begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=1;
|
|
loadsymbol(0,_op1,_op1ofs);
|
|
end;
|
|
|
|
constructor taicpu.op_sym_ofs_reg(op : tasmop;_size : topsize;_op1 : tasmsymbol;_op1ofs:longint;_op2 : tregister);
|
|
begin
|
|
inherited create(op);
|
|
init(_size);
|
|
ops:=2;
|
|
if ((op >= A_DBCC) and (op <= A_DBF))
|
|
or ((op >= A_FDBEQ) and (op <= A_FDBNGLE)) then
|
|
begin
|
|
loadreg(0,_op2);
|
|
loadsymbol(1,_op1,_op1ofs);
|
|
end
|
|
else
|
|
begin
|
|
loadsymbol(0,_op1,_op1ofs);
|
|
loadreg(1,_op2);
|
|
end;
|
|
end;
|
|
|
|
|
|
constructor taicpu.op_cond_sym(op : tasmop;cond:TAsmCond;_size : topsize;_op1 : tasmsymbol);
|
|
begin
|
|
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.
|