1 /*-------------------------------------------------------------------------
3 SDCCralloc.h - header file register allocation
5 Written By - Sandeep Dutta . sandeep.dutta@usa.net (1998)
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
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.
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.
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 #include "SDCCicode.h"
26 #include "SDCCBBlock.h"
28 #define SDCCRALLOC_H 1
30 #define ubyte unsigned char
32 #define sbyte signed char
33 #define uword unsigned char
35 #define sword signed char
36 #define udword unsigned int
38 #define sdword signed int
40 #define REG_PTR 0x01 // pointer register
41 #define REG_GPR 0x02 // general purpose register
42 #define REG_CND 0x04 // condition (bit) register
43 #define REG_SCR 0x40 // scratch register
44 #define REG_STK 0x80 // stack pointer register
47 ubyte rIdx; // a unique # for this one
48 ubyte size; // size of register (0,1,2,4)
49 ubyte type; // pointer, general purpose, condition (bit)
58 /* definition for the registers */
61 short type; /* can have value REG_CND, REG_8BITS,
62 REG_16BITS or REG_32BITS */
63 short rIdx; /* index into register table */
65 char *name; /* name */
66 char *dname; /* name when direct access needed */
67 char *base; /* base address */
68 short offset; /* offset from the base */
69 unsigned isFree:1; /* is currently unassigned */
74 extern regs regsXA51[];
75 extern udword xa51RegsInUse;
77 regs *xa51_regWithIdx (int);
79 bitVect *xa51_rUmaskForOp (operand * op);