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89c93b12c4
fpc/compiler/sparc/cpubase.pas
florian 89c93b12c4 * fixed sparc compiler compilation
2003-05-23 21:10:50 +00:00

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{******************************************************************************
$Id$
Copyright (c) 1998-2000 by Florian Klaempfl and Peter Vreman
Contains the base types for the Scalable Processor ARChitecture (SPARC)
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;
{$INCLUDE fpcdefs.inc}
interface
uses globals,cutils,cclasses,aasmbase,cpuinfo,cginfo;
const
{Size of the instruction table converted by nasmconv.pas}
maxinfolen=8;
{Defines the default address size for a processor}
OS_ADDR=OS_32;
{the natural int size for a processor}
OS_INT=OS_32;
{the maximum float size for a processor}
OS_FLOAT=OS_F64;
{the size of a vector register for a processor}
OS_VECTOR=OS_M64;
type
{$WARNING CPU32 opcodes do not fully include the Ultra SPRAC instruction set.}
{ don't change the order of these opcodes! }
TAsmOp=({$INCLUDE opcode.inc});
op2strtable=array[TAsmOp]OF STRING[11];
CONST
FirstOp=Low(TAsmOp);
LastOp=High(TAsmOp);
std_op2str:op2strtable=({$INCLUDE strinst.inc});
{*****************************************************************************
Operand Sizes
*****************************************************************************}
type
TOpSize=(S_NO,
S_B,{Byte}
S_H,{Half word}
S_W,{Word}
S_L:=S_W,
S_D,{Double Word}
S_Q,{Quad word}
S_IQ:=S_Q,
S_SB,{Signed byte}
S_SH,{Signed half word}
S_SW,{Signed word}
S_SD,{Signed double word}
S_SQ,{Signed quad word}
S_FS,{Float single word}
S_FX:=S_FS,
S_FD,{Float double word}
S_FQ,{Float quad word}
S_NEAR,
S_FAR,
S_SHORT);
{*****************************************************************************}
{ Conditions }
{*****************************************************************************}
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
);
CONST
cond2str:array[TAsmCond] of string[3]=('',
'a','ae','b','be','c','e','g','ge','l','le','na','nae',
'nb','nbe','nc','ne','ng','nge','nl','nle','no','np',
'ns','nz','o','p','pe','po','s','z'
);
inverse_cond:array[TAsmCond] of TAsmCond=(C_None,
C_NA,C_NAE,C_NB,C_NBE,C_NC,C_NE,C_NG,C_NGE,C_NL,C_NLE,C_A,C_AE,
C_B,C_BE,C_C,C_E,C_G,C_GE,C_L,C_LE,C_O,C_P,
C_S,C_Z,C_NO,C_NP,C_NP,C_P,C_NS,C_NZ
);
CONST
CondAsmOps=3;
CondAsmOp:array[0..CondAsmOps-1] of TAsmOp=(A_FCMPd, A_JMPL, A_FCMPs);
CondAsmOpStr:array[0..CondAsmOps-1] of string[7]=('FCMPd','JMPL','FCMPs');
{*****************************************************************************}
{ Registers }
{*****************************************************************************}
type
{ enumeration for registers, don't change the order }
{ it's used by the register size conversions }
TCpuRegister=({$INCLUDE cpuregs.inc});
TOldRegister=TCpuRegister;
Tnewregister=word;
Tsuperregister=byte;
Tsubregister=byte;
Tregister=record
enum:TCpuRegister;
number:Tnewregister;
end;
TRegister64=PACKED RECORD
{A type to store register locations for 64 Bit values.}
RegLo,RegHi:TRegister;
END;
treg64=tregister64;{alias for compact code}
TRegisterSet=SET OF TCpuRegister;
Tsupregset=set of Tsuperregister;
const
R_NO=R_NONE;
firstreg = Succ(R_NONE);
lastreg = Pred(R_INTREGISTER);
{General registers.}
const
NR_NONE=$0000;
NR_NO=NR_NONE;
NR_G0=$0001;
NR_G1=$0002;
NR_G2=$0003;
NR_G3=$0004;
NR_G4=$0005;
NR_G5=$0006;
NR_G6=$0007;
NR_G7=$0008;
NR_O0=$0100;
NR_O1=$0200;
NR_O2=$0300;
NR_O3=$0400;
NR_O4=$0500;
NR_O5=$0600;
NR_O6=$0700;
NR_O7=$0800;
NR_L0=$0900;
NR_L1=$0A00;
NR_L2=$0B00;
NR_L3=$0C00;
NR_L4=$0D00;
NR_L5=$0E00;
NR_L6=$0F00;
NR_L7=$1000;
NR_I0=$1100;
NR_I1=$1200;
NR_I2=$1300;
NR_I3=$1400;
NR_I4=$1500;
NR_I5=$1600;
NR_I6=$1700;
NR_I7=$1800;
{Floating point}
NR_F0=$2000;
NR_F1=$2000;
NR_F2=$2000;
NR_F3=$2000;
NR_F4=$2000;
NR_F5=$2000;
NR_F6=$2000;
NR_F7=$2000;
NR_F8=$2000;
NR_F9=$2000;
NR_F10=$2000;
NR_F11=$2000;
NR_F12=$2000;
NR_F13=$2000;
NR_F14=$2000;
NR_F15=$2000;
NR_F16=$2000;
NR_F17=$2000;
NR_F18=$2000;
NR_F19=$2000;
NR_F20=$2000;
NR_F21=$2000;
NR_F22=$2000;
NR_F23=$2000;
NR_F24=$2000;
NR_F25=$2000;
NR_F26=$2000;
NR_F27=$2000;
NR_F28=$2000;
NR_F29=$2000;
NR_F30=$2000;
NR_F31=$2000;
{Coprocessor point}
NR_C0=$3000;
NR_C1=$3000;
NR_C2=$3000;
NR_C3=$3000;
NR_C4=$3000;
NR_C5=$3000;
NR_C6=$3000;
NR_C7=$3000;
NR_C8=$3000;
NR_C9=$3000;
NR_C10=$3000;
NR_C11=$3000;
NR_C12=$3000;
NR_C13=$3000;
NR_C14=$3000;
NR_C15=$3000;
NR_C16=$3000;
NR_C17=$3000;
NR_C18=$3000;
NR_C19=$3000;
NR_C20=$3000;
NR_C21=$3000;
NR_C22=$3000;
NR_C23=$3000;
NR_C24=$3000;
NR_C25=$3000;
NR_C26=$3000;
NR_C27=$3000;
NR_C28=$3000;
NR_C29=$3000;
NR_C30=$3000;
NR_C31=$3000;
{ASR}
NR_ASR0=$4000;
NR_ASR1=$4000;
NR_ASR2=$4000;
NR_ASR3=$4000;
NR_ASR4=$4000;
NR_ASR5=$4000;
NR_ASR6=$4000;
NR_ASR7=$4000;
NR_ASR8=$4000;
NR_ASR9=$4000;
NR_ASR10=$4000;
NR_ASR11=$4000;
NR_ASR12=$4000;
NR_ASR13=$4000;
NR_ASR14=$4000;
NR_ASR15=$4000;
NR_ASR16=$4000;
NR_ASR17=$4000;
NR_ASR18=$4000;
NR_ASR19=$4000;
NR_ASR20=$4000;
NR_ASR21=$4000;
NR_ASR22=$4000;
NR_ASR23=$4000;
NR_ASR24=$4000;
NR_ASR25=$4000;
NR_ASR26=$4000;
NR_ASR27=$4000;
NR_ASR28=$4000;
NR_ASR29=$4000;
NR_ASR30=$4000;
NR_ASR31=$4000;
{Floating point status/"front of queue" registers}
NR_FSR=$5000;
NR_FQ=$5001; { was $50001, probably typo (FK) }
NR_CSR=$5000;
NR_CQ=$5000;
NR_PSR=$5000;
NR_TBR=$5000;
NR_WIM=$5000;
NR_Y=$5000;
{Superregisters.}
const
RS_O0=$01;
RS_O1=$02;
RS_O2=$03;
RS_O3=$04;
RS_O4=$05;
RS_O5=$06;
RS_O6=$07;
RS_O7=$08;
RS_L0=$09;
RS_L1=$0A;
RS_L2=$0B;
RS_L3=$0C;
RS_L4=$0D;
RS_L5=$0E;
RS_L6=$0F;
RS_L7=$10;
RS_I0=$11;
RS_I1=$12;
RS_I2=$13;
RS_I3=$14;
RS_I4=$15;
RS_I5=$16;
RS_I6=$17;
RS_I7=$18;
RS_G0=$19;
RS_G1=$1A;
RS_G2=$1B;
RS_G3=$1C;
RS_G4=$1D;
RS_G5=$1E;
RS_G6=$1F;
RS_G7=$20;
first_supreg = $01;
last_supreg = $20;
first_imreg = $21;
last_imreg = $ff;
{Subregisters; nothing known about.}
R_SUBWHOLE=$00;
R_SUBL=$00;
type
reg2strtable=array[TCpuRegister] OF STRING[7];
TCpuReg=array[TCpuRegister]of TRegister;
const
std_reg2str:reg2strtable=({$INCLUDE strregs.inc});
CpuReg:TCpuReg=({$INCLUDE registers.inc});
{*****************************************************************************
Flags
*****************************************************************************}
type
TResFlags=(
F_E, {Equal}
F_NE, {Not Equal}
F_G, {Greater}
F_L, {Less}
F_GE, {Greater or Equal}
F_LE, {Less or Equal}
F_C, {Carry}
F_NC, {Not Carry}
F_A, {Above}
F_AE, {Above or Equal}
F_B, {Below}
F_BE {Below or Equal}
);
{*****************************************************************************
Reference
*****************************************************************************}
type
trefoptions=(ref_none,ref_parafixup,ref_localfixup,ref_selffixup);
{ immediate/reference record }
poperreference = ^treference;
Preference=^Treference;
treference = packed record
segment,
base,
index : tregister;
scalefactor : byte;
offset : LongInt;
symbol : tasmsymbol;
offsetfixup : LongInt;
options : trefoptions;
alignment : byte;
END;
{ reference record }
PParaReference=^TParaReference;
TParaReference=PACKED RECORD
Index:TRegister;
Offset:longint;
END;
{*****************************************************************************
Operands
*****************************************************************************}
{ Types of operand }
toptype=(top_none,top_reg,top_ref,top_const,top_symbol,top_raddr,top_caddr);
toper=record
ot:LongInt;
case typ:toptype of
top_none:();
top_reg:(reg:tregister);
top_ref:(ref:poperreference);
top_const:(val:aword);
top_symbol:(sym:tasmsymbol;symofs:LongInt);
top_raddr:(reg1,reg2:TRegister);
top_caddr:(regb:TRegister;const13:Integer);
end;
{*****************************************************************************
Argument Classification
*****************************************************************************}
type
TArgClass = (
{ the following classes should be defined by all processor implemnations }
AC_NOCLASS,
AC_MEMORY,
AC_INTEGER,
AC_FPU,
{ the following argument classes are i386 specific }
AC_FPUUP,
AC_SSE,
AC_SSEUP);
{*****************************************************************************
Generic Location
*****************************************************************************}
type
{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:TCGLoc;
sp_fixup:LongInt;
CASE TCGLoc 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,registerhigh : tregister);
{ overlay a registerlow }
2 : (registerlow : tregister);
{ overlay a 64 Bit register type }
3 : (reg64 : tregister64);
4 : (register64 : tregister64);
);
{ it's only for better handling }
LOC_MMXREGISTER,LOC_CMMXREGISTER : (mmxreg : tregister);
END;
TLocation=PACKED RECORD
loc : TCGLoc;
size : TCGSize;
case TCGLoc of
LOC_FLAGS : (resflags : tresflags);
LOC_CONSTANT : (
case longint of
1 : (value : AWord);
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,registerhigh,segment : tregister);
{ overlay a registerlow }
2 : (registerlow : tregister);
{ overlay a 64 Bit register type }
3 : (reg64 : tregister64);
4 : (register64 : tregister64);
);
{ it's only for better handling }
LOC_MMXREGISTER,LOC_CMMXREGISTER : (mmxreg : tregister);
end;
{*****************************************************************************
Constants
*****************************************************************************}
const
general_registers = [R_G0..R_I7];
general_superregisters = [RS_O0..RS_I7];
{ legend: }
{ xxxregs = set of all possibly used registers of that type in the code }
{ generator }
{ usableregsxxx = set of all 32bit components of registers that can be }
{ possible allocated to a regvar or using getregisterxxx (this }
{ excludes registers which can be only used for parameter }
{ passing on ABI's that define this) }
{ c_countusableregsxxx = amount of registers in the usableregsxxx set }
IntRegs=[R_G0..R_I7];
usableregsint=[RS_O0..RS_I7];
c_countusableregsint = 24;
fpuregs=[R_F0..R_F31];
usableregsfpu=[R_F0..R_F31];
c_countusableregsfpu=32;
mmregs=[];
usableregsmm=[];
c_countusableregsmm=0;
{ no distinction on this platform }
maxaddrregs = 0;
addrregs = [];
usableregsaddr = [];
c_countusableregsaddr = 0;
firstsaveintreg = RS_O0;
lastsaveintreg = RS_I7;
firstsavefpureg = R_F0;
lastsavefpureg = R_F31;
firstsavemmreg = R_NONE;
lastsavemmreg = R_NONE;
lowsavereg = R_G0;
highsavereg = R_I7;
ALL_REGISTERS = [lowsavereg..highsavereg];
ALL_INTREGISTERS = [1..255];
lvaluelocations = [LOC_REFERENCE,LOC_CFPUREGISTER,
LOC_CREGISTER,LOC_MMXREGISTER,LOC_CMMXREGISTER];
{*****************************************************************************
GDB Information
*****************************************************************************}
{# Register indexes for stabs information, when some parameters or variables
are stored in registers.
Taken from rs6000.h (DBX_REGISTER_NUMBER) from GCC 3.x source code.}
stab_regindex:array[TCpuRegister]OF ShortInt=({$INCLUDE stabregi.inc});
{*************************** generic register names **************************}
stack_pointer_reg = R_O6;
NR_STACK_POINTER_REG = NR_O6;
RS_STACK_POINTER_REG = RS_O6;
frame_pointer_reg = R_I6;
NR_FRAME_POINTER_REG = NR_I6;
RS_FRAME_POINTER_REG = RS_I6;
{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 = R_I0;
NR_RETURN_RESULT_REG = NR_I0;
RS_RETURN_RESULT_REG = RS_I0;
{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 = R_O0;
NR_FUNCTION_RESULT_REG = NR_O0;
RS_FUNCTION_RESULT_REG = RS_O0;
self_pointer_reg =R_G5;
NR_SELF_POINTER_REG = NR_G5;
{ RS_SELF_POINTER_REG = RS_G5;}
{There is no accumulator in the SPARC architecture. There are just families
of registers. All registers belonging to the same family are identical except
in the "global registers" family where GO is different from the others :
G0 gives always 0 when it is red and thows away any value written to it.
Nevertheless, scalar routine results are returned onto R_O0.}
accumulator = R_O0;
NR_ACCUMULATOR = NR_O0;
RS_ACCUMULATOR = RS_O1;
accumulatorhigh = R_O1;
NR_ACCUMULATORHIGH = NR_O1;
RS_ACCUMULATORHIGH = RS_O1;
fpu_result_reg =R_F0;
mmresultreg =R_G0;
{*****************************************************************************}
{ GCC /ABI linking information }
{*****************************************************************************}
{# 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=[RS_O6];
{# 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=4;
{# Registers which are defined as scratch and no need to save across routine
calls or in assembler blocks.}
ScratchRegsCount=8;
scratch_regs:array[1..ScratchRegsCount] OF Tsuperregister=(RS_L0,RS_L1,RS_L2,RS_L3,RS_L4,RS_L5,RS_L6,RS_L7);
{ low and high of the available maximum width integer general purpose }
{ registers }
LoGPReg = R_G0;
HiGPReg = R_I7;
{ low and high of every possible width general purpose register (same as }
{ above on most architctures apart from the 80x86) }
LoReg = R_G0;
HiReg = R_I7;
cpuflags = [];
{ sizes }
pointersize = 4;
extENDed_size = 8;{SPARC architecture uses IEEE floating point numbers}
mmreg_size = 8;
SizePostfix_pointer = S_SW;
{*****************************************************************************
Instruction table
*****************************************************************************}
{$ifndef NOAG386BIN}
type
tinsentry=packed record
opcode : tasmop;
ops : byte;
optypes : array[0..2] of LongInt;
code : array[0..maxinfolen] of char;
flags : LongInt;
END;
pinsentry=^tinsentry;
TInsTabCache=array[TasmOp] of LongInt;
PInsTabCache=^TInsTabCache;
VAR
InsTabCache : PInsTabCache;
{$ENDif NOAG386BIN}
{*****************************************************************************
Helpers
*****************************************************************************}
const
maxvarregs=30;
VarRegs:array[1..maxvarregs] of tnewregister = (
RS_G0,RS_G1,RS_G2,RS_G3,RS_G4,RS_G5,RS_G6,RS_G7,
RS_O0,RS_O1,RS_O2,RS_O3,RS_O4,RS_O5,{RS_R14=RS_SP}RS_O7,
RS_L0,RS_L1,RS_L2,RS_L3,RS_L4,RS_L5,RS_L6,RS_L7,
RS_I0,RS_I1,RS_I2,RS_I3,RS_I4,RS_I5,{RS_R30=RS_FP}RS_I7
);
maxfpuvarregs = 8;
max_operands = 3;
maxintregs = maxvarregs;
maxfpuregs = maxfpuvarregs;
max_scratch_regs=8;
function is_calljmp(o:tasmop):boolean;
function flags_to_cond(CONST f:TResFlags):TAsmCond;
procedure convert_register_to_enum(var r:Tregister);
function cgsize2subreg(s:Tcgsize):Tsubregister;
implementation
uses
verbose;
const
CallJmpOp=[A_JMPL..A_CBccc];
function is_calljmp(o:tasmop):boolean;
begin
if o in CallJmpOp
then
is_calljmp:=true
else
is_calljmp:=false;
end;
function flags_to_cond(const f:TResFlags):TAsmCond;
CONST
flags_2_cond:array[TResFlags]OF TAsmCond=
(C_E,C_NE,C_G,C_L,C_GE,C_LE,C_C,C_NC,C_A,C_AE,C_B,C_BE);
BEGIN
result:=flags_2_cond[f];
END;
procedure convert_register_to_enum(var r:Tregister);
begin
if r.enum=R_INTREGISTER
then
case r.number of
NR_NO: r.enum:= R_NO;
NR_G0: r.enum:= R_G0;
NR_G1: r.enum:= R_G1;
NR_G2: r.enum:= R_G2;
NR_G3: r.enum:= R_G3;
NR_G4: r.enum:= R_G4;
NR_G5: r.enum:= R_G5;
NR_G6: r.enum:= R_G6;
NR_G7: r.enum:= R_G7;
NR_O0: r.enum:= R_O0;
NR_O1: r.enum:= R_O1;
NR_O2: r.enum:= R_O2;
NR_O3: r.enum:= R_O3;
NR_O4: r.enum:= R_O4;
NR_O5: r.enum:= R_O5;
NR_O6: r.enum:= R_O6;
NR_O7: r.enum:= R_O7;
NR_L0: r.enum:= R_L0;
NR_L1: r.enum:= R_L1;
NR_L2: r.enum:= R_L2;
NR_L3: r.enum:= R_L3;
NR_L4: r.enum:= R_L4;
NR_L5: r.enum:= R_L5;
NR_L6: r.enum:= R_L6;
NR_L7: r.enum:= R_L7;
NR_I0: r.enum:= R_I0;
NR_I1: r.enum:= R_I1;
NR_I2: r.enum:= R_I2;
NR_I3: r.enum:= R_I3;
NR_I4: r.enum:= R_I4;
NR_I5: r.enum:= R_I5;
NR_I6: r.enum:= R_I6;
NR_I7: r.enum:= R_I7;
else
internalerror(200301082);
end;
end;
function cgsize2subreg(s:Tcgsize):Tsubregister;
begin
cgsize2subreg:=R_SUBWHOLE;
end;
end.
{
$Log$
Revision 1.32 2003-05-23 21:10:50 florian
* fixed sparc compiler compilation
Revision 1.31 2003/05/22 16:11:22 florian
* fixed sparc compilation partially
Revision 1.30 2003/05/06 14:58:46 mazen
- non used constants OT_* removed
* some keywords moved lower case
Revision 1.29 2003/04/29 12:03:52 mazen
* TOldRegister isnow just an alias for TCpuRegister
* TCpuRegister is used to define cpu register set physically available
+ CpuRegs array to easially create correspondence between TCpuRegister and TRegister
Revision 1.28 2003/04/28 09:46:30 mazen
+ max_scratch_regs variable added because requested by common compiler code
Revision 1.27 2003/04/23 13:35:39 peter
* fix sparc compile
Revision 1.26 2003/04/23 12:35:35 florian
* fixed several issues with powerpc
+ applied a patch from Jonas for nested function calls (PowerPC only)
* ...
}
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