sdcc/src/f8/ralloc.h

   1 /*-------------------------------------------------------------------------
   2
   3   SDCCralloc.h - header file register allocation
   4
   5                 Written By -  Philipp Krause . pkk@spth.de (2012)
   6
   7    This program is free software; you can redistribute it and/or modify it
   8    under the terms of the GNU General Public License as published by the
   9    Free Software Foundation; either version 2, or (at your option) any
  10    later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, write to the Free Software
  19    Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  20
  21    In other words, you are welcome to use, share and improve this program.
  22    You are forbidden to forbid anyone else to use, share and improve
  23    what you give them.   Help stamp out software-hoarding!
  24 -------------------------------------------------------------------------*/
  25
  26 #ifndef SDCCRALLOC_H
  27 #define SDCCRALLOC_H 1
  28
  29 #include "common.h"
  30
  31 enum
  32 {
  33   XL_IDX = 0,// Lower byte of X - The main 8-bot accumulator
  34   XH_IDX,    // Upper byte of X
  35   YL_IDX,    // Lower byte of Y
  36   YH_IDX,    // Upper byte of Y
  37   ZL_IDX,    // Lower byte of Z
  38   ZH_IDX,    // Upper byte of Z
  39   F_IDX,     // Flag register
  40   C_IDX,     // Carry
  41
  42   X_IDX,     // X - for use with code generation support functions only.
  43   Y_IDX,     // Y - for use with code generation support functions only.
  44   Z_IDX,     // Z - for use with code generation support functions only.
  45
  46   SP_IDX     // SP - for use with debug info.
  47 };
  48
  49 enum
  50 {
  51   REG_GPR = 2,
  52   REG_CND = 4,
  53 };
  54
  55 /* definition for the registers */
  56 typedef struct reg_info
  57 {
  58   short type;                   /* can have value
  59                                    REG_GPR, REG_PTR or REG_CND */
  60   short rIdx;                   /* index into register table */
  61   char *name;                   /* name */
  62 } reg_info;
  63
  64 extern reg_info f8_regs[];
  65
  66 void f8_assignRegisters (ebbIndex *);
  67
  68 void f8SpillThis (symbol *sym, bool force_spill);
  69 iCode *f8_ralloc2_cc(ebbIndex *ebbi);
  70
  71 void f8RegFix (eBBlock **ebbs, int count);
  72 #endif
  73