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* initial release derieved from the ALPHA cpubase.pas, the

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file still contains some ALPHA stuff
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florian 2000-03-09 20:28:00 +00:00
parent dd89e25cb2
commit e31020b12c
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{
$Id$
Copyright (C) 2000 by Florian Klaempfl
this unit implements an asmlistitem class for the iA-64 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 cpubase;
interface
uses
strings,systems,cobjects,globals,aasm,cpuinfo;
type
tasmop = (A_ADD,A_SUB,A_ADDP4,A_AND,A_ANDCM,A_OR,A_XOR,A_SHLADD,
A_SHLADDP4,A_ADDS,A_ADDL,A_CMP,A_CMP4,A_PADD1,A_PADD2,
A_PADD4,A_PSUB1,A_PSUB2,A_PSUB4,A_PAVG1,A_PAVG2,A_PAVGSUB1,
A_PAVGSUB2,A_PCMP1,A_PCMP2,A_PCMP4,A_PSHLADD2,A_PSHRADD2,
A_PMPY2,A_MIX1,A_MIX2,A_MIX4,A_PACK2,A_PACK4,A_UNPACK2,
A_UNPACK4,A_PMIN1,A_PMAX1,A_PMIN2,A_PMAX2,A_PSAD1,A_MUX1,
A_MUX2,A_PSHR2,A_PSHR4,A_SHR,A_PSHL2,A_SHL4,A_SHL,
A_POPCNT,A_SHRP,A_EXTR,A_DEP,A_TBIT,A_TNAT,A_BREAK,
A_NOP,A_CHK,A_MOV,A_ZX1,A_ZX2,A_ZXT4,A_SXT1,A_SXT2,A_SXT4,
A_CXZ1,A_CZX2,A_LD1,A_LD2,A_LD4,A_LD8,A_ST1,A_ST2,A_ST4,
A_ST8,A_LDFS,A_LDFD,A_LDF8,A_LDFE,A_LDF,A_STFS,A_STFD,A_STF8,
A_STFE,A_STF,A_LDFPS,A_LDFPD,A_LDFP8,A_LFETCH,A_CMPXCHG1,
A_CMPXCHG2,A_CMPXHG4,A_CMPXCHG8,A_XCHG1,A_XCHG2,A_XCHG4,
A_XCHG8,A_FETCHADD4,A_FETCHADD8,A_SETF,A_GETF,A_CHK,
A_INVALA,A_MF,A_SRLZ,A_SYNC,A_FLUSHRS,A_FC,A_ALLOC,A_SUM
A_RUM,A_BR,A_CLRRRB,A_FMA,A_FPMA,A_FMS,A_FPMS,A_FNMA,A_FPNMA,
A_XMA,A_FSELECT,A_CMP,A_FCLASS,A_FRCPA,A_FPRCPA,A_FRSQRTA,
A_FPRSQRTA,A_FMIN,A_FMAX,A_FAMIN,A_FAMAX,A_FPMIN,A_FPMAX,
A_FPAMIN,A_FPAMAX,A_FPCMP,A_FMERGE,A_FMIX,A_FSXT,A_FPACK,
A_FSWAP,A_FAND,A_FANDCM,A_FOR,A_FXOR,A_FPMERGE,A_FCVT,
A_FPCVT,A_FSETC,A_FCLRT,A_FCHKF,A_MOVL);
Const
firstop = low(tasmop);
lastop = high(tasmop);
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
);
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);
TRegisterset = Set of TRegister;
{ Constants describing the registers }
Const
Firstreg = R_0;
LastReg = R_F31;
stack_pointer = R_30;
frame_pointer = R_15;
self_pointer = R_16;
accumulator = R_0;
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;
max_scratch_regs = 2;
scratch_regs : array[1..max_scratch_regs] of tregister = (R_1,R_2);
{ 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;
cpuflags = [cf_64bitaddr];
{ sizes }
pointersize = 8;
extended_size = 16;
general_registers = [R_0..R_31];
intregs = [R_0..R_31];
fpuregs = [R_F0..R_F31];
mmregs = [];
availabletempregsint = [R_0..R_14,R_16..R_25,R_28];
availabletempregsfpu = [R_F0..R_F30];
availabletempregsmm = [];
c_countusableregsint = 26;
c_countusableregsfpu = 31;
c_countusableregsmm = 0;
max_operands = 4;
registers_saved_on_cdecl = [R_9..R_14,R_F2..R_F9];
maxvarregs = 6;
varregs : Array [1..maxvarregs] of Tregister =
(R_9,R_10,R_11,R_12,R_13,R_14);
Type
TReference = record
offset : aword;
symbol : pasmsymbol;
base : tregister;
is_immediate : boolean;
offsetfixup : word; {needed for inline}
{ the boundary to which the reference is surely aligned }
alignment : byte;
end;
PReference = ^TReference;
tloc = (LOC_INVALID,
LOC_REGISTER,
LOC_MEM,
LOC_REFERENCE,
LOC_JUMP,
{ the alpha doesn't have flags, but this }
{ avoid some conditional compiling }
{ DON'T USE for the alpha }
LOC_FLAGS,
LOC_CREGISTER,
LOC_CONST);
tlocation = record
case loc : tloc of
LOC_REFERENCE,LOC_MEM : (reference : treference);
LOC_REGISTER : (register : tregister);
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:pasmsymbol;symofs:longint);
end;
Const
{ 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.
{
$Log$
Revision 1.1 2000-03-09 20:28:00 florian
* initial release derieved from the ALPHA cpubase.pas, the
file still contains some ALPHA stuff
}