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/*-------------------------------------------------------------------------
device.c - Accomodates subtle variations in PIC16 devices
Written By - Scott Dattalo scott@dattalo.com
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, 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, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-------------------------------------------------------------------------*/
/*
PIC device abstraction
There are dozens of variations of PIC microcontrollers. This include
file attempts to abstract those differences so that SDCC can easily
deal with them.
*/
#ifndef __DEVICE_H__
#define __DEVICE_H__
#define CONFIGURATION_WORDS 20
#define IDLOCATION_BYTES 20
typedef struct {
unsigned int mask;
int emit;
unsigned int value;
unsigned int andmask;
} configRegInfo_t;
typedef struct {
int confAddrStart; /* starting address */
int confAddrEnd; /* ending address */
configRegInfo_t crInfo[ CONFIGURATION_WORDS ];
} configWordsInfo_t;
typedef struct {
unsigned char emit;
unsigned char value;
} idRegInfo_t;
typedef struct {
int idAddrStart; /* starting ID address */
int idAddrEnd; /* ending ID address */
idRegInfo_t irInfo[ IDLOCATION_BYTES ];
} idBytesInfo_t;
#define PROCESSOR_NAMES 4
/* Processor unique attributes */
typedef struct PIC16_device {
char *name[PROCESSOR_NAMES]; /* aliases for the processor name */
/* RAMsize *must* be the first item to copy for 'using' */
unsigned int RAMsize; /* size of Data RAM - VR 031120 */
unsigned int acsSplitOfs; /* access bank split offset */
configWordsInfo_t cwInfo; /* configuration words info */
idBytesInfo_t idInfo; /* ID Locations info */
int xinst; /* device supports XINST */
/* next *must* be the first field NOT being copied via 'using' */
struct PIC16_device *next; /* linked list */
} PIC16_device;
extern PIC16_device *pic16;
/* Given a pointer to a register, this macro returns the bank that it is in */
#define REG_ADDR(r) ((r)->isBitField ? (((r)->address)>>3) : (r)->address)
#define OF_LR_SUPPORT 0x00000001
#define OF_NO_OPTIMIZE_GOTO 0x00000002
#define OF_OPTIMIZE_CMP 0x00000004
#define OF_OPTIMIZE_DF 0x00000008
typedef struct {
int no_banksel;
int opt_banksel;
int omit_configw;
int omit_ivt;
int leave_reset;
int stack_model;
int ivt_loc;
int nodefaultlibs;
int dumpcalltree;
char *crt_name;
int no_crt;
int ip_stack;
unsigned long opt_flags;
int gstack;
unsigned int debgen;
int xinst;
int no_warn_non_free;
} pic16_options_t;
extern pic16_options_t pic16_options;
#define STACK_MODEL_SMALL (pic16_options.stack_model == 0)
#define STACK_MODEL_LARGE (pic16_options.stack_model == 1)
extern set *fix_idataSymSet;
extern set *rel_idataSymSet;
#if 0
/* This is an experimental code for #pragma inline
and is temporarily disabled for 2.5.0 release */
extern set *asmInlineMap;
#endif /* 0 */
typedef struct {
unsigned long isize;
unsigned long adsize;
unsigned long udsize;
unsigned long idsize;
unsigned long intsize;
} stats_t;
extern stats_t statistics;
typedef struct pic16_config_options_s {
char *config_str;
struct pic16_config_options_s *next;
} pic16_config_options_t;
extern pic16_config_options_t *pic16_config_options;
/****************************************/
const char *pic16_processor_base_name(void);
void pic16_assignConfigWordValue(int address, unsigned int value);
void pic16_assignIdByteValue(int address, char value);
int pic16_isREGinBank(reg_info *reg, int bank);
int pic16_REGallBanks(reg_info *reg);
int checkAddReg(set **set, reg_info *reg);
int checkAddSym(set **set, symbol *reg);
int checkSym(set *set, symbol *reg);
#endif /* __DEVICE_H__ */
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