{ $Id$ 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 cutils,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_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_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_LT,C_LTU,C_EQ,C_LT_UNC,C_LTU_UNC,C_EQ_UNC, C_EQ_AND,C_EQ_OR,C_EQ_OR_ANDCM,C_NE_AND,C_NE_OR); THint = (H_NONE,H_NT1,H_NT2,H_NTA); TLdStType = (LST_NONE,LST_S,LST_A,LSR_SA,LST_BIAS,LST_ACQ,LST_C_CLR, LST_FILL,LST_C_NC,LST_C_CLR_ACQ,LST_REL, LST_SPILL); Type 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; { -1 indicates no qualifying prediction } tqp = -1..63; const qp_none : tqp = -1; { Constants describing the registers } Const Firstreg = R_0; LastReg = R_F31; 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; global_pointer = R_29; return_pointer = R_26; 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; { sizes } pointer_size = 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; maxfpuvarregs = 128; maxvarregs = 128; max_operands = 4; varregs : Array [1..6] of Tregister = (R_9,R_10,R_11,R_12,R_13,R_14); {***************************************************************************** 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 CALLED_USED_REGISTERS array in the GCC source. } std_saved_registers = [R_9..R_14,R_F2..R_F9]; {# 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 = ???; 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_FPU, 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_CFPUREGISTER, LOC_CONST); tlocation = record case loc : tloc of LOC_REFERENCE,LOC_MEM : (reference : treference); LOC_CREGISTER, LOC_REGISTER : (register : tregister); LOC_FLAGS : (qp : tqp); LOC_JUMP : (); end; {***************************************************************************** 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); procedure set_location(var destloc : tlocation;const sourceloc : tlocation); {***************************************************************************** Init/Done *****************************************************************************} procedure InitCpu; procedure DoneCpu; implementation uses verbose; 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; procedure set_location(var destloc : tlocation;const sourceloc : tlocation); begin destloc:=sourceloc; end; {***************************************************************************** Init/Done *****************************************************************************} procedure InitCpu; begin end; procedure DoneCpu; begin end; end. { $Log$ Revision 1.6 2002-11-17 18:26:16 mazen * fixed a compilation bug accmulator-->accumulator, in definition of return_result_reg Revision 1.5 2002/11/17 17:49:09 mazen + return_result_reg and function_result_reg are now used, in all plateforms, to pass functions result between called function and its caller. See the explanation of each one Revision 1.4 2002/09/07 15:25:11 peter * old logs removed and tabs fixed Revision 1.3 2002/04/20 21:38:45 carl * renamed some constants }