/*-------------------------------------------------------------------------
- device.c - Accomodates subtle variations in PIC16 devices
+ device.c - Accomodates subtle variations in PIC16 devices
+
Written By - Scott Dattalo scott@dattalo.com
Ported to PIC16 By - Martin Dubuc m.dubuc@rogers.com
Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-------------------------------------------------------------------------*/
+
+/*
+ VR - Began writing code to make PIC16 C source files independent from
+ the header file (created by the inc2h.pl)
+
+ - adding maximum RAM memory into PIC_Device structure
+
+*/
+
#include <stdio.h>
#include "common.h" // Include everything in the SDCC src directory
#include "ralloc.h"
#include "device.h"
-#if defined(__BORLANDC__) || defined(_MSC_VER)
-#define STRCASECMP stricmp
-#else
-#define STRCASECMP strcasecmp
-#endif
-static PIC_device Pics[] = {
+static PIC16_device Pics16[] = {
{
- {"p18f242", "18f242", "pic18f242", "f242"},
- (memRange *)NULL,
- (memRange *)NULL,
+ {"p18f242", "18f242", "pic18f242", "f242"}, // aliases
0,
- 0x300,
+ 0x300, // bank mask
+ 0x300, // RAMsize
+ 0
},
{
- {"p18f252", "18f252", "pic18f252", "f252"},
- (memRange *)NULL,
- (memRange *)NULL,
+ {"p18f252", "18f252", "pic18f252", "f252"}, // aliases
0,
- 0x600,
+ 0x600, // bank mask
+ 0x600, // RAMsize
+ 0
},
{
- {"p18f442", "18f442", "pic18f442", "f442"},
- (memRange *)NULL,
- (memRange *)NULL,
+ {"p18f442", "18f442", "pic18f442", "f442"}, // aliases
0,
- 0x300,
+ 0x300, // bank mask
+ 0x300, // RAMsize
+ 0
},
{
- {"p18f452", "18f452", "pic18f452", "f452"},
- (memRange *)NULL,
- (memRange *)NULL,
+ {"p18f452", "18f452", "pic18f452", "f452"}, // aliases
0,
- 0x600,
+ 0x600, // bank mask
+ 0x600, // RAMsize
+ 0
},
-};
+ {
+ {"p18f248", "18f248", "pic18f248", "f248"}, // aliases
+ 0,
+ 0x300, // bank mask
+ 0x300, // RAMsize
+ 0
+ },
+
+ {
+ {"p18f258", "18f258", "pic18f258", "f258"}, // aliases
+ 0,
+ 0x600, // bank mask
+ 0x600, // RAMsize
+ 0
+ },
+
+ {
+ {"p18f448", "18f448", "pic18f448", "f448"}, // aliases
+ 0,
+ 0x300, // bank mask
+ 0x300, // RAMsize
+ 0
+ },
+
+ {
+ {"p18f458", "18f458", "pic18f458", "f458"}, // aliases
+ 0,
+ 0x600, // bank mask
+ 0x600, // RAMsize
+ 0
+ },
+
+ {
+ {"p18f6520", "18f6520", "pic18f6520", "f6520"}, // aliases
+ 0,
+ 0x800, // bank mask
+ 0x800, // RAMsize
+ 1
+ },
-static int num_of_supported_PICS = sizeof(Pics)/sizeof(PIC_device);
+ {
+ {"p18f6620", "18f6620", "pic18f6620", "f6620"}, // aliases
+ 0,
+ 0xf00, // bank mask
+ 0xf00, // RAMsize
+ 1
+ },
+ {
+ {"p18f6680", "18f6680", "pic18f6680", "f6680"}, // aliases
+ 0,
+ 0xc00, // bank mask
+ 0xc00, // RAMsize
+ 1
+ },
+ {
+ {"p18f6720", "18f6720", "pic18f6720", "f6720"}, // aliases
+ 0,
+ 0xf00, // bank mask
+ 0xf00, // RAMsize
+ 1
+ },
+ {
+ {"p18f8520", "18f8520", "pic18f8520", "f8520"}, // aliases
+ 0,
+ 0x800, // bank mask
+ 0x800, // RAMsize
+ 1
+ },
+ {
+ {"p18f8620", "18f8620", "pic18f8620", "f8620"}, // aliases
+ 0,
+ 0xf00, // bank mask
+ 0xf00, // RAMsize
+ 1
+ },
+ {
+ {"p18f8680", "18f8680", "pic18f8680", "f8680"}, // aliases
+ 0,
+ 0xc00, // bank mask
+ 0x800, // RAMsize
+ 1
+ },
+ {
+ {"p18f8720", "18f8720", "pic18f8720", "f8720"}, // aliases
+ 0,
+ 0xf00, // bank mask
+ 0xf00, // RAMsize
+ 1
+ },
-#define DEFAULT_PIC "f452"
+};
+
+static int num_of_supported_PICS = sizeof(Pics16)/sizeof(PIC16_device);
-static PIC_device *pic=NULL;
+#define DEFAULT_PIC "452"
-AssignedMemory *pic16_finalMapping=NULL;
+PIC16_device *pic16=NULL;
#define DEFAULT_CONFIG_BYTE 0xff
static unsigned int config7l_word = DEFAULT_CONFIG7L_WORD;
static unsigned int config7h_word = DEFAULT_CONFIG7H_WORD;
-void pic16_addMemRange(memRange *r, int type)
-{
- int i;
- int alias = r->alias;
-
- if (pic->maxRAMaddress < 0) {
- fprintf(stderr, "missing \"#pragma maxram\" setting\n");
- return;
- }
+unsigned int stackPos = 0;
- do {
- for (i=r->start_address; i<= r->end_address; i++) {
- if ((i|alias) <= pic->maxRAMaddress) {
- pic16_finalMapping[i | alias].isValid = 1;
- pic16_finalMapping[i | alias].alias = r->alias;
- pic16_finalMapping[i | alias].bank = r->bank;
- if(type) {
- /* hack for now */
- pic16_finalMapping[i | alias].isSFR = 1;
- } else {
- pic16_finalMapping[i | alias].isSFR = 0;
- }
- } else {
- fprintf(stderr, "WARNING: %s:%s memory at 0x%x is beyond max ram = 0x%x\n",
- __FILE__,__FUNCTION__,(i|alias), pic->maxRAMaddress);
- }
- }
-
- /* Decrement alias */
- if (alias) {
- alias -= ((alias & (alias - 1)) ^ alias);
- } else {
- alias--;
- }
-
- } while (alias >= 0);
-}
+extern regs* newReg(short type, short pc_type, int rIdx, char *name, int size, int alias, operand *refop);
void pic16_setMaxRAM(int size)
{
- int i;
- pic->maxRAMaddress = size;
+ pic16->maxRAMaddress = size;
+ stackPos = pic16->RAMsize-1;
- if (pic->maxRAMaddress < 0) {
- fprintf(stderr, "invalid \"#pragma maxram 0x%x\" setting\n",
- pic->maxRAMaddress);
- return;
- }
-
- pic16_finalMapping = Safe_calloc(1+pic->maxRAMaddress,
- sizeof(AssignedMemory));
+ if (pic16->maxRAMaddress < 0) {
+ fprintf(stderr, "invalid \"#pragma maxram 0x%x\" setting\n",
+ pic16->maxRAMaddress);
+ return;
+ }
+}
- /* Now initialize the pic16_finalMapping array */
+extern char *iComments2;
- for(i=0; i<=pic->maxRAMaddress; i++) {
- pic16_finalMapping[i].reg = NULL;
- pic16_finalMapping[i].isValid = 0;
- }
+void pic16_dump_equates(FILE *of, set *equs)
+{
+ regs *r;
+
+ r = setFirstItem(equs);
+ if(!r)return;
+
+ fprintf(of, "%s", iComments2);
+ fprintf(of, ";\tEquates to used internal registers\n");
+ fprintf(of, "%s", iComments2);
+
+ for(; r; r = setNextItem(equs)) {
+ fprintf(of, "%s\tequ\t0x%02x\n", r->name, r->address);
+ }
}
-/*-----------------------------------------------------------------*
- *-----------------------------------------------------------------*/
-int pic16_isREGinBank(regs *reg, int bank)
+int regCompare(const void *a, const void *b)
{
+ const regs *const *i = a;
+ const regs *const *j = b;
- if(!reg || !pic)
- return 0;
+ /* sort primarily by the address */
+ if( (*i)->address > (*j)->address)return 1;
+ if( (*i)->address < (*j)->address)return -1;
+
+ /* and secondarily by size */
+ if( (*i)->size > (*j)->size)return 1;
+ if( (*i)->size < (*j)->size)return -1;
- if(pic16_finalMapping[reg->address].bank == bank)
- return 1;
return 0;
}
-/*-----------------------------------------------------------------*
- *-----------------------------------------------------------------*/
-int pic16_REGallBanks(regs *reg)
+void pic16_dump_section(FILE *of, set *section, int fix)
{
+ static int abs_section_no=0;
+ regs *r, *rprev;
+ int init_addr, i;
+ regs **rlist;
+
+ /* put all symbols in an array */
+ rlist = Safe_calloc(elementsInSet(section), sizeof(regs *));
+ r = rlist[0]; i = 0;
+ for(rprev = setFirstItem(section); rprev; rprev = setNextItem(section)) {
+ rlist[i] = rprev; i++;
+ }
- if(!reg || !pic)
- return 0;
-
- if (reg->address > pic->maxRAMaddress)
- return 0;
-
- return 1;
-
+ /* sort symbols according to their address */
+ qsort(rlist, elementsInSet(section), sizeof(regs *), regCompare);
+
+ if(!i) {
+ if(rlist)free(rlist);
+ return;
+ }
+
+ if(!fix) {
+ fprintf(of, "\n\n\tudata\n");
+ for(r = setFirstItem(section); r; r = setNextItem(section)) {
+ fprintf(of, "%s\tres\t%d\n", r->name, r->size);
+ }
+ } else {
+ int j=0;
+
+ rprev = NULL;
+ init_addr = rlist[j]->address;
+ fprintf(of, "\n\nstatic_%s_%02d\tudata\t0X%04X\n", moduleName, abs_section_no++, init_addr);
+
+ for(j=0;j<i;j++) {
+ r = rlist[j];
+ init_addr = r->address;
+ if(rprev && (init_addr != (rprev->address + rprev->size))) {
+ fprintf(of, "\nstatic_%s_%02d\tudata\t0X%04X\n", moduleName, abs_section_no++, init_addr);
+ }
+
+ fprintf(of, "%s\tres\t%d\n", r->name, r->size);
+ rprev = r;
+ }
+ }
+ free(rlist);
}
-/*-----------------------------------------------------------------*
- *-----------------------------------------------------------------*/
-
-/*
- * pic16_dump_map -- debug stuff
- */
-
-void pic16_dump_map(void)
+void pic16_dump_int_registers(FILE *of, set *section)
{
+ regs *r, *rprev;
int i;
+ regs **rlist;
- for(i=0; i<=pic->maxRAMaddress; i++) {
- //fprintf(stdout , "addr 0x%02x is %s\n", i, ((pic16_finalMapping[i].isValid) ? "valid":"invalid"));
-
- if(pic16_finalMapping[i].isValid) {
- fprintf(stderr,"addr: 0x%02x",i);
- if(pic16_finalMapping[i].isSFR)
- fprintf(stderr," isSFR");
- if(pic16_finalMapping[i].reg)
- fprintf( stderr, " reg %s", pic16_finalMapping[i].reg->name);
- fprintf(stderr, "\n");
- }
- }
-
-}
-
-void pic16_dump_cblock(FILE *of)
-{
- int start=-1;
- int addr=0;
- int bank_base;
-
- //pic16_dump_map(); /* display the register map */
-
- if (pic->maxRAMaddress < 0) {
- fprintf(stderr, "missing \"#pragma maxram\" setting\n");
- return;
- }
-
- do {
-
- if(pic16_finalMapping[addr].reg && !pic16_finalMapping[addr].reg->isEmitted) {
-
- if(start<0)
- start = addr;
- } else {
- if(start>=0) {
-
- /* clear the lower 7-bits of the start address of the first
- * variable declared in this bank. The upper bits for the mid
- * range pics are the bank select bits.
- */
-
- bank_base = start & 0xfff8;
-
- /* The bank number printed in the cblock comment tacitly
- * assumes that the first register in the contiguous group
- * of registers represents the bank for the whole group */
-
- if ((pic16_finalMapping[start].bank == 0 && start <= 0x7f) ||
- pic16_finalMapping[start].isSFR)
- fprintf(of," cblock 0X%04X\t; Access Bank\n",start);
- else
- fprintf(of," cblock 0X%04X\t; Bank %d\n",start,pic16_finalMapping[start].bank);
-
- for( ; start < addr; start++) {
- if((pic16_finalMapping[start].reg) && !pic16_finalMapping[start].reg->isEmitted ) {
- fprintf(of,"\t%s",pic16_finalMapping[start].reg->name);
-
- /* If this register is aliased in multiple banks, then
- * mangle the variable name with the alias address: */
- if(pic16_finalMapping[start].alias & start)
- fprintf(of,"_%x",bank_base);
-
- if(pic16_finalMapping[start].instance)
- fprintf(of,"_%d",pic16_finalMapping[start].instance);
-
-
- fputc('\n',of);
-
- //pic16_finalMapping[start].reg->isEmitted = 1;
- }
+ /* put all symbols in an array */
+ rlist = Safe_calloc(elementsInSet(section), sizeof(regs *));
+ r = rlist[0]; i = 0;
+ for(rprev = setFirstItem(section); rprev; rprev = setNextItem(section)) {
+ rlist[i] = rprev; i++;
}
- fprintf(of," endc\n");
-
- start = -1;
- }
-
- }
-
- addr++;
+ /* sort symbols according to their address */
+ qsort(rlist, elementsInSet(section), sizeof(regs *), regCompare);
+
+ if(!i) {
+ if(rlist)free(rlist);
+ return;
+ }
+
+ fprintf(of, "\n\n; Internal registers\n");
+
+ fprintf(of, "%s\tudata_ovr\t0x0000\n", ".registers");
+ for(r = setFirstItem(section); r; r = setNextItem(section))
+ fprintf(of, "%s\tres\t%d\n", r->name, r->size);
+
+ free(rlist);
+}
- } while(addr <= pic->maxRAMaddress);
-
-}
/*-----------------------------------------------------------------*
* void pic16_list_valid_pics(int ncols, int list_alias)
int i,j,k,l;
if(list_alias)
- list_alias = sizeof(Pics[0].name) / sizeof(Pics[0].name[0]);
+ list_alias = sizeof(Pics16[0].name) / sizeof(Pics16[0].name[0]);
/* decrement the column number if it's greater than zero */
ncols = (ncols > 1) ? ncols-1 : 4;
/* Find the device with the longest name */
for(i=0,longest=0; i<num_of_supported_PICS; i++) {
for(j=0; j<=list_alias; j++) {
- k = strlen(Pics[i].name[j]);
+ k = strlen(Pics16[i].name[j]);
if(k>longest)
longest = k;
}
j = 0;
do {
- fprintf(stderr,"%s", Pics[i].name[j]);
+ fprintf(stderr,"%s", Pics16[i].name[j]);
if(col<ncols) {
- l = longest + 2 - strlen(Pics[i].name[j]);
+ l = longest + 2 - strlen(Pics16[i].name[j]);
for(k=0; k<l; k++)
fputc(' ',stderr);
/*-----------------------------------------------------------------*
*
*-----------------------------------------------------------------*/
-PIC_device *pic16_find_device(char *name)
+PIC16_device *pic16_find_device(char *name)
{
int i,j;
for(i = 0; i<num_of_supported_PICS; i++) {
for(j=0; j<PROCESSOR_NAMES; j++)
- if(!STRCASECMP(Pics[i].name[j], name) )
- return &Pics[i];
+ if(!STRCASECMP(Pics16[i].name[j], name) )
+ return &Pics16[i];
}
/* not found */
*-----------------------------------------------------------------*/
void pic16_init_pic(char *pic_type)
{
- pic = pic16_find_device(pic_type);
+ pic16 = pic16_find_device(pic_type);
- if(!pic) {
- if(pic_type)
- fprintf(stderr, "'%s' was not found.\n", pic_type);
- else
- fprintf(stderr, "No processor has been specified (use -pPROCESSOR_NAME)\n");
+ if(!pic16) {
+ if(pic_type)
+ fprintf(stderr, "'%s' was not found.\n", pic_type);
+ else
+ fprintf(stderr, "No processor has been specified (use -pPROCESSOR_NAME)\n");
- fprintf(stderr,"Valid devices are:\n");
+ fprintf(stderr,"Valid devices are:\n");
- pic16_list_valid_pics(4,0);
- exit(1);
- }
+ pic16_list_valid_pics(4,0);
+ exit(1);
+ }
- pic->maxRAMaddress = -1;
+// printf("PIC processor found and initialized: %s\n", pic_type);
+ pic16_setMaxRAM( 0xfff );
}
/*-----------------------------------------------------------------*
*-----------------------------------------------------------------*/
int pic16_picIsInitialized(void)
{
- if(pic && pic->maxRAMaddress > 0)
+ if(pic16 && pic16->maxRAMaddress > 0)
return 1;
return 0;
char *pic16_processor_base_name(void)
{
- if(!pic)
+ if(!pic16)
return NULL;
- return pic->name[0];
-}
-
-static int isSFR(int address)
-{
-
- if( (address > pic->maxRAMaddress) || !pic16_finalMapping[address].isSFR)
- return 0;
-
- return 1;
-
+ return pic16->name[0];
}
-/*-----------------------------------------------------------------*
- *-----------------------------------------------------------------*/
-static int validAddress(int address, int reg_size)
-{
- int i;
-
- if (pic->maxRAMaddress < 0) {
- fprintf(stderr, "missing \"#pragma maxram\" setting\n");
- return 0;
- }
- // fprintf(stderr, "validAddress: Checking 0x%04x\n",address);
- if(address > pic->maxRAMaddress)
- return 0;
-
- for (i=0; i<reg_size; i++)
- if(!pic16_finalMapping[address + i].isValid ||
- pic16_finalMapping[address+i].reg ||
- pic16_finalMapping[address+i].isSFR )
- return 0;
-
- return 1;
-}
-
-/*-----------------------------------------------------------------*
- *-----------------------------------------------------------------*/
-static void mapRegister(regs *reg)
-{
-
- int i;
- int alias;
-
- if(!reg || !reg->size) {
- fprintf(stderr,"WARNING: %s:%s:%d Bad register\n",__FILE__,__FUNCTION__,__LINE__);
- return;
- }
-
- if (pic->maxRAMaddress < 0) {
- fprintf(stderr, "missing \"#pragma maxram\" setting\n");
- return;
- }
-
- for(i=0; i<reg->size; i++) {
-
- alias = pic16_finalMapping[reg->address].alias;
- reg->alias = alias;
-
- do {
-
- //fprintf(stdout,"mapping %s to address 0x%02x, reg size = %d\n",reg->name, (reg->address+alias+i),reg->size);
-
- pic16_finalMapping[reg->address + alias + i].reg = reg;
- pic16_finalMapping[reg->address + alias + i].instance = i;
- /* Decrement alias */
- if(alias)
- alias -= ((alias & (alias - 1)) ^ alias);
- else
- alias--;
-
- } while (alias>=0);
- }
-
- // fprintf(stderr,"%s - %s addr = 0x%03x, size %d\n",__FUNCTION__,reg->name, reg->address,reg->size);
-
- reg->isMapped = 1;
-
-}
-
-/*-----------------------------------------------------------------*
- *-----------------------------------------------------------------*/
-static int assignRegister(regs *reg, int start_address)
+/*
+ * return 1 if register wasn't found and added, 0 otherwise
+ */
+int checkAddReg(set **set, regs *reg)
{
- int i;
-
- //fprintf(stderr,"%s - %s start_address = 0x%03x\n",__FUNCTION__,reg->name, start_address);
- if(reg->isFixed) {
-
- if (validAddress(reg->address,reg->size)) {
- //fprintf(stderr,"%s - %s address = 0x%03x\n",__FUNCTION__,reg->name, reg->address);
- mapRegister(reg);
- return reg->address;
- }
-
- if( isSFR(reg->address)) {
- mapRegister(reg);
- return reg->address;
- }
-
- //fprintf(stderr, "WARNING: Ignoring Out of Range register assignment at fixed address %d, %s\n",
- // reg->address, reg->name);
+ regs *tmp;
- } else {
- /* This register does not have a fixed address requirement
- * so we'll search through all availble ram address and
- * assign the first one */
-
- for (i=start_address; i<=pic->maxRAMaddress; i++) {
-
- if (validAddress(i,reg->size)) {
- reg->address = i;
- mapRegister(reg);
- return i;
- }
- }
-
- fprintf(stderr, "WARNING: No more RAM available for %s\n",reg->name);
-
- }
+ for(tmp = setFirstItem(*set); tmp; tmp = setNextItem(*set)) {
+ if(!strcmp(tmp->name, reg->name))break;
+ }
+
+ if(!tmp) {
+ addSet(set, reg);
+ return 1;
+ }
- return -1;
+ return 0;
}
/*-----------------------------------------------------------------*
+ * void pic16_groupRegistersInSection - add each register to its *
+ * corresponding section *
*-----------------------------------------------------------------*/
-void pic16_assignFixedRegisters(set *regset)
+void pic16_groupRegistersInSection(set *regset)
{
regs *reg;
- for (reg = setFirstItem(regset) ; reg ;
- reg = setNextItem(regset)) {
-
- if(reg->isFixed)
- assignRegister(reg,0);
- }
-
+ for(reg=setFirstItem(regset); reg; reg = setNextItem(regset)) {
+ if(reg->wasUsed
+ && !(reg->regop && SPEC_EXTR(OP_SYM_ETYPE(reg->regop)))) {
+
+// fprintf(stderr, "%s:%d register %s\n", __FILE__, __LINE__, reg->name);
+
+ if(reg->alias) {
+ checkAddReg(&pic16_equ_data, reg);
+ } else
+ if(reg->isFixed) {
+ checkAddReg(&pic16_fix_udata, reg);
+ } else
+ if(!reg->isFixed) {
+ if(reg->pc_type == PO_GPR_TEMP)
+ checkAddReg(&pic16_int_regs, reg);
+ else
+ checkAddReg(&pic16_rel_udata, reg);
+ }
+ }
+ }
}
-/*-----------------------------------------------------------------*
- *-----------------------------------------------------------------*/
-void pic16_assignRelocatableRegisters(set *regset, int used)
-{
-
- regs *reg;
- int address = 0;
-
- for (reg = setFirstItem(regset) ; reg ;
- reg = setNextItem(regset)) {
-
- //fprintf(stdout,"assigning %s isFixed=%d, wasUsed=%d\n",reg->name,reg->isFixed,reg->wasUsed);
-
- if((!reg->isFixed) && ( used || reg->wasUsed))
- address = assignRegister(reg,address);
- }
-}
/*-----------------------------------------------------------------*
break;
}
- //fprintf(stderr,"setting config word to 0x%x\n",value);
+ fprintf(stderr,"setting config word to 0x%x\n",value);
}
/*-----------------------------------------------------------------*
return 0;
}
}
-
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