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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libbsp/] [m68k/] [mvme162/] [tools/] [sload.c] - Blame information for rev 173

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/*
 *
 *        Copyright (c) 1994 by EISCAT Scientific Association.
 *                        All Rights Reserved.
 *                             M.Savitski
 *
 *     S-record code - courtesy of Kym Newbery
 *     8918927y@lux.levels.unisa.edu.au
 *
 *     Loading S-records into the VMEbus memory.
 *
 *  Loads an executable in s-record format into the MVME dual-ported
 *  memory and directs the MVME CPU to start execution.
 *  VMEbus access is done via the FORCE CPU-2CE vmeplus driver in
 *  read/write mode for loading and in mmap mode for accessing MVME registers.
 *  See mvme162.h for #define's dependent on the MVME162 setup.
 *
 *  $Id: sload.c,v 1.2 2001-09-27 12:00:19 chris Exp $
 *
 */
 
#include <stdio.h>
#include <string.h>
#include <ctype.h>
 
 
#include <sys/types.h>
#include <sys/fcntl.h>
#include <sys/resource.h>
#include <unistd.h>
#include <sys/vme.h>
#include <sys/mman.h>
 
#include "../include/bsp.h"
 
#define FALSE 0
#define TRUE 1
 
#define DATA19 0
#define DATA28 1
#define DATA37 3
#define HEADER 4
#define TERMINATOR 5
#define NONE 6
 
unsigned int ahdtoi(unsigned char digit);
int issrec(char *str);
int validrec(char *str);
void hdr2str(char *sstr, char *pstr);
unsigned long getaddr(char *str);
unsigned int datasize(char *str);
void usage (void);
int MVMEControl(u_long entry, int reset, int go);
 
unsigned int ahdtoi(unsigned char digit)
/*   converts a hexadecimal char to an integer
 *
 *   entry        : digit = character to convert
 *                        : 0..15 = result
 *                        : -1    = char is not a digit
 */
{
/* check digit */
  if (!isxdigit(digit))
    return(-1);
 
  switch (toupper(digit)) {
    case 'A' : return(0xA);
    case 'B' : return(0xB);
    case 'C' : return(0xC);
    case 'D' : return(0xD);
    case 'E' : return(0xE);
    case 'F' : return(0xF);
    default  : return(digit - 0x30);
  }
}
 
int issrec(char *str)
/*  attempts to identify the type of Srecord string passed
 *
 *   entry   : str =  pointer to null terminated string
 *   returns : 0,1,2,3,5,7,8,9 for S0..S9 except S6 & S4
 *           : -1 = invalid header or header not found
 *                   : -2 = invalid header number
 */
{
/* Check first character for S */
  if ((isupper(str[0]) && (str[0] == 'S')) || (islower(str[0]) && (str[0] == 's')))
  {
  /* check for valid header number */
    switch (str[1]) {
      case '0' : return 0;    /* header record */
      case '1' : return 1;    /* data record, 2byte addr */
      case '2' : return 2;    /*  "     "   , 3byte addr */
      case '3' : return 3;    /*  "     "   , 4byte addr */
      case '5' : return 5;    /* number of S1,S2,S3 blocks */
      case '7' : return 7;    /* S3 terminator */
      case '8' : return 8;    /* S2 terminator */
      case '9' : return 9;    /* S1 terminator */
      default  : return -2;   /* all others are invalid */
    }
  }
  return(-1);
}
 
int validrec(char *str)
/*  Tests for a valid srecord. tests checksum & for nondigit characters
 *  doesn't rely on any other srecord routines.
 *
 *    entry   : str   =  pointer to null terminated string
 *    returns : -1        =  srecord contains invalid characters
 *                        : -2    =  srecord checksum is invalid
 *                    : -3    =  srecord record length is invalid
 *            : 0     =  srecord is valid
 */
{
  int         cn = 1, rlen=0;
  int         mchksum=0, rchksum=0;
 
/* first check if there are any non-digit characters except S */
  while (str[cn]!=0)
    if (!isxdigit(str[cn++]))
      return(-1);
 
/* test number of data bytes */
  rlen = ahdtoi(str[2])* 0x10 + ahdtoi(str[3]);
  if (((strlen(str)-4)/2U) != rlen) return(-3);
 
/* get checksum from string */
  rchksum = ahdtoi(str[rlen*2+2])*0x10 + ahdtoi(str[rlen*2+3]); /* string chksum */
 
/* now calculate my own checksum */
  for (cn=2; cn <= rlen*2; )
    mchksum += ahdtoi(str[cn++])*0x10 + ahdtoi(str[cn++]);
  mchksum = ~mchksum & 0xFF;
  if (mchksum != rchksum) return(-2); /* return -2 in not equal */
 
/* return OK if we didn't fail any of these tests */
  return(0);
}
 
void hdr2str(char *sstr, char *pstr)
/*  converts header record (S0) string into a plain string
 *
 *  entry        : sstr = pointer to S0 string record
 *  exit         : pstr = pointer to string long enough to hold string
 *                                (caller must allocate enough space for string)
 */
{
  int     rlen, cn, pn=0;
 
  rlen = ahdtoi(sstr[2])*0x10 + ahdtoi(sstr[3]);
  for (cn=8; cn <= rlen*2; )
    pstr[pn++] = ahdtoi(sstr[cn++])*0x10 + ahdtoi(sstr[cn++]);
  pstr[pn]=0;
}
 
unsigned long getaddr(char *str)
/*  returns the address of the srecord in str. assumes record is valid.
 *
 *  entry        : str = pointer to srecord string
 *  exit         : address of data, word or long.
 */
{
  unsigned long addr=0;
 
  switch (issrec(str)) {
    case 0 :
    case 1 :
    case 5 :
    case 9 :  addr = ahdtoi(str[4])*0x1000 + ahdtoi(str[5])*0x100
              + ahdtoi(str[6])*0x10 + ahdtoi(str[7]);
              return(addr);
    case 2 :
    case 8 :  addr = ahdtoi(str[4])*0x100000 + ahdtoi(str[5])*0x10000
              + ahdtoi(str[6])*0x1000 + ahdtoi(str[7])*0x100
              + ahdtoi(str[8])*0x10 + ahdtoi(str[9]);
              return(addr);
    case 3 :
    case 7 :  addr = ahdtoi(str[4])*0x10000000 + ahdtoi(str[5])*0x1000000
              + ahdtoi(str[6])*0x100000 + ahdtoi(str[7])*0x10000
              + ahdtoi(str[8])*0x1000 + ahdtoi(str[9])*0x100
              + ahdtoi(str[10])*0x10 + ahdtoi(str[11]);
              return(addr);
    default : return(-1);
  }
}
 
unsigned int datasize(char *str)
/*
 *  returns the number of data bytes in the srecord. assumes record is valid.
 *
 *  entry        : str = pointer to srecord string
 *  exit         : number of bytes of data in the data field.
 */
{
  unsigned int size=0;
 
  switch (issrec(str)) {
    case 0  :
    case 1  :
    case 5  :
    case 7  :
    case 8  :
    case 9  : size = ahdtoi(str[2])*0x10 + ahdtoi(str[3]);
              return(size-3);
    case 2  : size = ahdtoi(str[2])*0x10 + ahdtoi(str[3]);
              return(size-4);
    case 3  : size = ahdtoi(str[2])*0x10 + ahdtoi(str[3]);
              return(size-5);
    default : return(-1);
  }
}
 
void usage (void)
/*
 *  prints correct usage on stdout
 */
{
   printf("\nUSAGE :  sload [-v][-g][-r] [file]\n");
   printf("  file is an s-record file\n");
   printf("  -v for verbose summary of s-records loaded\n");
   printf("  -g to start execution\n");
   printf("  -r to reset MVME162\n\n");
}
 
int MVMEControl(u_long entry, int reset, int go)
/*  Controls MVME-162 from other VME master:
 *  if entry != 0, loads it as start address
 *  if go != 0, starts program execution from entry
 *  if reset != 0, resets mvme162's local bus
 *  Depends upon #define'ed GROUP_BASE_ADDRESS and BOARD_BASE_ADDRESS
 *  which in turn are set by the 162-BUG's ENV command.
 */
{
  int         vme;
  char        vmedev[32] = "/dev/vme16d32";   /* d32 is important !!!  */
  u_long      pagesize;
  struct gcsr *gcsr_map;
 
  pagesize = sysconf(_SC_PAGESIZE);   /* mmap likes to be page-aligned */
 
  if ((vme = open(vmedev, O_RDWR)) == -1) {
    perror("open");
    fprintf(stderr, "Cannot open vme as %s to access GCSR\n", vmedev);
    return 1;
  }
 
/* "MAP_SHARED" is important here */
  gcsr_map = (struct gcsr *) mmap(0, 0x1000, PROT_WRITE|PROT_READ, MAP_SHARED,
                          vme, (u_long)gcsr_vme / pagesize * pagesize);
  if (gcsr_map == (struct gcsr *) - 1) {
    perror("mmap");
    fprintf(stderr, "Cannot mmap() to remote bus address 0x%08X\n",
                 (u_long)gcsr_vme / pagesize * pagesize);
    return 1;
  }
 
/*
 * use GCSR to start execution in MVME162
 * adjust pointer to compensate for page alignement
 */
  gcsr_map = (struct gcsr *)((u_long)gcsr_map + (u_long)gcsr_vme % pagesize);
 
  if (reset) {                /* reset the local bus... */
    gcsr_map->board_scr |= 0x80;
  }
  if (entry) {                /* ...load start address... */
    gcsr_map->gpr[0] = entry >> 16U;
    gcsr_map->gpr[1] = entry & 0x0000FFFF;
  }
  if (go) {                   /* ... and kick it in the ass! */
    gcsr_map->lmsig = 0x1;
  }
}
 
/*=================================================================== */
main(int argc, char *argv[])
{
  char        inpstr[256];
  u_char      image[256];
  char        hdrstr[64];
  int         i, j, k, result, size, line=0, lastrec=0;
  long        addr, tsize=0, naddr=0, blksize=0, blknum=1;
  FILE        *in;
  char        infile[256] = "";
  char        vmedev[32] = "/dev/vme32d32";   /* Assume "/dev/vme32d32"  */
  int         vme, verbose = 0, go = 0, reset = 0, havefile = 0;
 
/*  Parse the command line */
 
  --argc;
 
  while (argv++, argc--) {
    if (**argv != '-') {
      strcpy(infile, *argv);
      havefile = 1;
    } else if (!strcmp(*argv, "-v")) {
      verbose = 1;
    } else if (!strcmp(*argv, "-g")) {
      go = 1;
    } else if (!strcmp(*argv, "-r")) {
      reset = 1;
/*    } else if (!strcmp(*argv, "-vme32")) { */
/*      strcpy(vmedev, "/dev/vme32d32"); */
/*    } else if (!strcmp(*argv, "-vme24")) { */
/*      strcpy(vmedev, "/dev/vme24d32"); */
/*    } else if (!strcmp(*argv, "-vme16")) { */
/*      strcpy(vmedev, "/dev/vme16d32"); */
    } else if (!strcmp(*argv, "-")) {
        usage();
        exit(0);
    } else {
        usage();
        exit(0);
    }
  }
 
  if (!havefile) {
    if (!reset && !go) {
        usage();
    }
    else {
      MVMEControl(0, reset, go);
    }
    exit(0);
  }
 
  if ((in = fopen(infile, "r")) == NULL) {
    perror("open");
    fprintf(stderr, "Cannot open input file %s\n", infile);
    exit(1);
  }
 
  if ((vme = open(vmedev, O_RDWR)) == -1) {
    fprintf(stderr, "Cannot open vme as %s\n", vmedev);
  }
 
  while (fscanf(in, "%s", &inpstr) != EOF) {
    line++;
    if (validrec(inpstr) == 0) {
      switch (issrec(inpstr)) {
      case 0 :
        hdr2str(inpstr, hdrstr);
        if (verbose) printf("HEADER string = `%s'\n", hdrstr);
        lastrec=HEADER;
        break;
      case 1 :
        addr = getaddr(inpstr);
        size = datasize(inpstr);
        if (blksize == 0) {
          blksize+=size;
          naddr=addr+size;
          if (verbose) printf("DATA\tS19\t$%04lX", addr);
          lastrec=DATA19;
        }
        else if ((blksize!=0) && (addr==naddr)) {
          blksize+=size;
          naddr=addr+size;
        }
        else {
          if (verbose) printf("\t$%04lX\t%lu", naddr-1, blksize);
          if (verbose) printf("\t%d\n", blknum);
          blknum+=1;
          naddr=addr+size;
          blksize=size;
          if (verbose) printf("DATA\tS19\t$%04lX", addr);
          lastrec=DATA19;
        }
        tsize += size;
        if (vme == -1) break;
        for (i = 0, j = 8, k = size; k-- > 0; i += 1, j += 2) {
          image[i] = ahdtoi(inpstr[j])*0x10 + ahdtoi(inpstr[j+1]);
        }
        if (lseek(vme, addr, SEEK_SET) == -1) {
          fprintf(stderr, "lseek() to vme address %08X failed\n", addr);
        }
        else {
          if (write(vme, (u_char *)image, size) != size) {
            fprintf(stderr, "Write to vme address %08X failed\n", addr);
          }
        }
        break;
      case 2 :
        addr = getaddr(inpstr);
        size = datasize(inpstr);
        if (blksize == 0) {
          blksize+=size;
          naddr=addr+size;
          if (verbose) printf("DATA\tS28\t$%06lX",addr);
          lastrec=DATA28;
        }
        else if ((blksize!=0) && (addr==naddr)) {
          blksize+=size;
          naddr=addr+size;
        }
        else {
          if (verbose) printf("\t$%06lX\t%lu",naddr-1,blksize);
          if (verbose) printf("\t%d\n",blknum);
          blknum+=1;
          naddr=addr+size;
          blksize=size;
          if (verbose) printf("DATA\tS28\t$%06lX",addr);
          lastrec=DATA28;
        }
        tsize += size;
        if (vme == -1) break;
        for (i = 0, j = 10, k = size; k-- > 0; i += 1, j += 2) {
          image[i] = ahdtoi(inpstr[j])*0x10 + ahdtoi(inpstr[j+1]);
        }
        if (lseek(vme, addr, SEEK_SET) == -1) {
          fprintf(stderr, "lseek() to vme address %08X failed\n", addr);
        }
        else {
          if (write(vme, (u_char *)image, size) != size) {
            fprintf(stderr, "Write to vme address %08X failed\n", addr);
          }
        }
        break;
      case 3 :
        addr = getaddr(inpstr);
        size = datasize(inpstr);
        if (blksize == 0) {
          blksize+=size;
          naddr=addr+size;
          if (verbose) printf("DATA\tS37\t$%08lX",addr);
          lastrec=DATA37;
        }
        else if ((blksize!=0) && (addr==naddr)) {
          blksize+=size;
          naddr=addr+size;
        }
        else {
          if (verbose) printf("\t$%08lX\t%lu",naddr-1,blksize);
          if (verbose) printf("\t%d\n",blknum);
          blknum+=1;
          naddr=addr+size;
          blksize=size;
          if (verbose) printf("DATA\tS37\t$%08lX",addr);
          lastrec=DATA37;
        }
        tsize += size;
        if (vme == -1) break;
        for (i = 0, j = 12, k = size; k-- > 0; i += 1, j += 2) {
          image[i] = ahdtoi(inpstr[j])*0x10 + ahdtoi(inpstr[j+1]);
        }
        if (lseek(vme, addr, SEEK_SET) == -1) {
          fprintf(stderr, "lseek() to vme address %08X failed\n", addr);
        }
        else {
          if (write(vme, (u_char *)image, size) != size) {
            fprintf(stderr, "Write to vme address %08X failed\n", addr);
          }
        }
        break;
      case 7 :
        if (lastrec==DATA19){if (verbose) printf("\t$%04lX\t%lu",naddr-1,blksize);}
        if (lastrec==DATA28){if (verbose) printf("\t$%06lX\t%lu",naddr-1,blksize);}
        if (lastrec==DATA37){if (verbose) printf("\t$%08lX\t%lu",naddr-1,blksize);}
        if (verbose) printf("\t%d\n",blknum);
        addr = getaddr(inpstr);
        if (verbose) printf("TERM\tS37");
        printf("\nExecution address = $%08lX\n", addr);
        lastrec=TERMINATOR;
        break;
      case 8 :
        if (lastrec==DATA19){if (verbose) printf("\t$%04lX\t%lu",naddr-1,blksize);}
        if (lastrec==DATA28){if (verbose) printf("\t$%06lX\t%lu",naddr-1,blksize);}
        if (lastrec==DATA37){if (verbose) printf("\t$%08lX\t%lu",naddr-1,blksize);}
        if (verbose) printf("\t%d\n",blknum);
        addr = getaddr(inpstr);
        if (verbose) printf("TERM\tS28");
        printf("\nExecution address = $%06lX\n", addr);
        lastrec=TERMINATOR;
        break;
      case 9 :
        if (lastrec==DATA19){if (verbose) printf("\t$%04lX\t%lu",naddr-1,blksize);}
        if (lastrec==DATA28){if (verbose) printf("\t$%06lX\t%lu",naddr-1,blksize);}
        if (lastrec==DATA37){if (verbose) printf("\t$%08lX\t%lu",naddr-1,blksize);}
        if (verbose) printf("\t%d\n",blknum);
        addr = getaddr(inpstr);
        if (verbose) printf("TERM\tS19");
        printf("\nExecution address = $%04lX\n", addr);
        lastrec=TERMINATOR;
        break;
      }
    }
    else {
      printf("\nError on line %d. ",line);
      switch (validrec(inpstr)) {
      case -1 : {printf("SRecord contains invalid characters.\n"); break; }
      case -2 : {printf("SRecord checksum is invalid.\n"); break;}
      case -3 : {printf("SRecord length is invalid.\n"); break;}
      }
      exit(1);
    }
  }
 
  if ((lastrec==DATA19) || (lastrec==DATA28) || (lastrec==DATA37)) {
    if (lastrec==DATA19){if (verbose) printf("\t$%04lX\t%lu",naddr-1,blksize);}
    if (lastrec==DATA28){if (verbose) printf("\t$%06lX\t%lu",naddr-1,blksize);}
    if (lastrec==DATA37){if (verbose) printf("\t$%08lX\t%lu",naddr-1,blksize);}
    if (verbose) printf("\t%d\n",blknum);
    printf("ERROR: terminator record not found.\n");
  }
  else {
    for (i = 0x000FFFF; i-- > 0;) ;           /* mystique delay... */
    MVMEControl(addr, reset, go);
  }
  if (verbose) printf("total data size = %lu bytes\n", tsize);
}

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Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libbsp/] [m68k/] [mvme162/] [tools/] [sload.c] - Blame information for rev 173

Line No.	Rev	Author	Line
1	30	unneback	`/*`
2			`*`
3			`* Copyright (c) 1994 by EISCAT Scientific Association.`
4			`* All Rights Reserved.`
5			`* M.Savitski`
6			`*`
7			`* S-record code - courtesy of Kym Newbery`
8			`* 8918927y@lux.levels.unisa.edu.au`
9			`*`
10			`* Loading S-records into the VMEbus memory.`
11			`*`
12			`* Loads an executable in s-record format into the MVME dual-ported`
13			`* memory and directs the MVME CPU to start execution.`
14			`* VMEbus access is done via the FORCE CPU-2CE vmeplus driver in`
15			`* read/write mode for loading and in mmap mode for accessing MVME registers.`
16			`* See mvme162.h for #define's dependent on the MVME162 setup.`
17			`*`
18			`* $Id: sload.c,v 1.2 2001-09-27 12:00:19 chris Exp $`
19			`*`
20			`*/`
21
22			`#include <stdio.h>`
23			`#include <string.h>`
24			`#include <ctype.h>`
25
26
27			`#include <sys/types.h>`
28			`#include <sys/fcntl.h>`
29			`#include <sys/resource.h>`
30			`#include <unistd.h>`
31			`#include <sys/vme.h>`
32			`#include <sys/mman.h>`
33
34			`#include "../include/bsp.h"`
35
36			`#define FALSE 0`
37			`#define TRUE 1`
38
39			`#define DATA19 0`
40			`#define DATA28 1`
41			`#define DATA37 3`
42			`#define HEADER 4`
43			`#define TERMINATOR 5`
44			`#define NONE 6`
45
46			`unsigned int ahdtoi(unsigned char digit);`
47			`int issrec(char *str);`
48			`int validrec(char *str);`
49			`void hdr2str(char sstr, char pstr);`
50			`unsigned long getaddr(char *str);`
51			`unsigned int datasize(char *str);`
52			`void usage (void);`
53			`int MVMEControl(u_long entry, int reset, int go);`
54
55			`unsigned int ahdtoi(unsigned char digit)`
56			`/* converts a hexadecimal char to an integer`
57			`*`
58			`* entry : digit = character to convert`
59			`* : 0..15 = result`
60			`* : -1 = char is not a digit`
61			`*/`
62			`{`
63			`/* check digit */`
64			`if (!isxdigit(digit))`
65			`return(-1);`
66
67			`switch (toupper(digit)) {`
68			`case 'A' : return(0xA);`
69			`case 'B' : return(0xB);`
70			`case 'C' : return(0xC);`
71			`case 'D' : return(0xD);`
72			`case 'E' : return(0xE);`
73			`case 'F' : return(0xF);`
74			`default : return(digit - 0x30);`
75			`}`
76			`}`
77
78			`int issrec(char *str)`
79			`/* attempts to identify the type of Srecord string passed`
80			`*`
81			`* entry : str = pointer to null terminated string`
82			`* returns : 0,1,2,3,5,7,8,9 for S0..S9 except S6 & S4`
83			`* : -1 = invalid header or header not found`
84			`* : -2 = invalid header number`
85			`*/`
86			`{`
87			`/* Check first character for S */`
88			`if ((isupper(str[0]) && (str[0] == 'S')) \|\| (islower(str[0]) && (str[0] == 's')))`
89			`{`
90			`/* check for valid header number */`
91			`switch (str[1]) {`
92			`case '0' : return 0; /* header record */`
93			`case '1' : return 1; /* data record, 2byte addr */`
94			`case '2' : return 2; /* " " , 3byte addr */`
95			`case '3' : return 3; /* " " , 4byte addr */`
96			`case '5' : return 5; /* number of S1,S2,S3 blocks */`
97			`case '7' : return 7; /* S3 terminator */`
98			`case '8' : return 8; /* S2 terminator */`
99			`case '9' : return 9; /* S1 terminator */`
100			`default : return -2; /* all others are invalid */`
101			`}`
102			`}`
103			`return(-1);`
104			`}`
105
106			`int validrec(char *str)`
107			`/* Tests for a valid srecord. tests checksum & for nondigit characters`
108			`* doesn't rely on any other srecord routines.`
109			`*`
110			`* entry : str = pointer to null terminated string`
111			`* returns : -1 = srecord contains invalid characters`
112			`* : -2 = srecord checksum is invalid`
113			`* : -3 = srecord record length is invalid`
114			`* : 0 = srecord is valid`
115			`*/`
116			`{`
117			`int cn = 1, rlen=0;`
118			`int mchksum=0, rchksum=0;`
119
120			`/* first check if there are any non-digit characters except S */`
121			`while (str[cn]!=0)`
122			`if (!isxdigit(str[cn++]))`
123			`return(-1);`
124
125			`/* test number of data bytes */`
126			`rlen = ahdtoi(str[2])* 0x10 + ahdtoi(str[3]);`
127			`if (((strlen(str)-4)/2U) != rlen) return(-3);`
128
129			`/* get checksum from string */`
130			`rchksum = ahdtoi(str[rlen2+2])0x10 + ahdtoi(str[rlen2+3]); / string chksum */`
131
132			`/* now calculate my own checksum */`
133			`for (cn=2; cn <= rlen*2; )`
134			`mchksum += ahdtoi(str[cn++])*0x10 + ahdtoi(str[cn++]);`
135			`mchksum = ~mchksum & 0xFF;`
136			`if (mchksum != rchksum) return(-2); /* return -2 in not equal */`
137
138			`/* return OK if we didn't fail any of these tests */`
139			`return(0);`
140			`}`
141
142			`void hdr2str(char sstr, char pstr)`
143			`/* converts header record (S0) string into a plain string`
144			`*`
145			`* entry : sstr = pointer to S0 string record`
146			`* exit : pstr = pointer to string long enough to hold string`
147			`* (caller must allocate enough space for string)`
148			`*/`
149			`{`
150			`int rlen, cn, pn=0;`
151
152			`rlen = ahdtoi(sstr[2])*0x10 + ahdtoi(sstr[3]);`
153			`for (cn=8; cn <= rlen*2; )`
154			`pstr[pn++] = ahdtoi(sstr[cn++])*0x10 + ahdtoi(sstr[cn++]);`
155			`pstr[pn]=0;`
156			`}`
157
158			`unsigned long getaddr(char *str)`
159			`/* returns the address of the srecord in str. assumes record is valid.`
160			`*`
161			`* entry : str = pointer to srecord string`
162			`* exit : address of data, word or long.`
163			`*/`
164			`{`
165			`unsigned long addr=0;`
166
167			`switch (issrec(str)) {`
168			`case 0 :`
169			`case 1 :`
170			`case 5 :`
171			`case 9 : addr = ahdtoi(str[4])0x1000 + ahdtoi(str[5])0x100`
172			`+ ahdtoi(str[6])*0x10 + ahdtoi(str[7]);`
173			`return(addr);`
174			`case 2 :`
175			`case 8 : addr = ahdtoi(str[4])0x100000 + ahdtoi(str[5])0x10000`
176			`+ ahdtoi(str[6])0x1000 + ahdtoi(str[7])0x100`
177			`+ ahdtoi(str[8])*0x10 + ahdtoi(str[9]);`
178			`return(addr);`
179			`case 3 :`
180			`case 7 : addr = ahdtoi(str[4])0x10000000 + ahdtoi(str[5])0x1000000`
181			`+ ahdtoi(str[6])0x100000 + ahdtoi(str[7])0x10000`
182			`+ ahdtoi(str[8])0x1000 + ahdtoi(str[9])0x100`
183			`+ ahdtoi(str[10])*0x10 + ahdtoi(str[11]);`
184			`return(addr);`
185			`default : return(-1);`
186			`}`
187			`}`
188
189			`unsigned int datasize(char *str)`
190			`/*`
191			`* returns the number of data bytes in the srecord. assumes record is valid.`
192			`*`
193			`* entry : str = pointer to srecord string`
194			`* exit : number of bytes of data in the data field.`
195			`*/`
196			`{`
197			`unsigned int size=0;`
198
199			`switch (issrec(str)) {`
200			`case 0 :`
201			`case 1 :`
202			`case 5 :`
203			`case 7 :`
204			`case 8 :`
205			`case 9 : size = ahdtoi(str[2])*0x10 + ahdtoi(str[3]);`
206			`return(size-3);`
207			`case 2 : size = ahdtoi(str[2])*0x10 + ahdtoi(str[3]);`
208			`return(size-4);`
209			`case 3 : size = ahdtoi(str[2])*0x10 + ahdtoi(str[3]);`
210			`return(size-5);`
211			`default : return(-1);`
212			`}`
213			`}`
214
215			`void usage (void)`
216			`/*`
217			`* prints correct usage on stdout`
218			`*/`
219			`{`
220			`printf("\nUSAGE : sload [-v][-g][-r] [file]\n");`
221			`printf(" file is an s-record file\n");`
222			`printf(" -v for verbose summary of s-records loaded\n");`
223			`printf(" -g to start execution\n");`
224			`printf(" -r to reset MVME162\n\n");`
225			`}`
226
227			`int MVMEControl(u_long entry, int reset, int go)`
228			`/* Controls MVME-162 from other VME master:`
229			`* if entry != 0, loads it as start address`
230			`* if go != 0, starts program execution from entry`
231			`* if reset != 0, resets mvme162's local bus`
232			`* Depends upon #define'ed GROUP_BASE_ADDRESS and BOARD_BASE_ADDRESS`
233			`* which in turn are set by the 162-BUG's ENV command.`
234			`*/`
235			`{`
236			`int vme;`
237			`char vmedev[32] = "/dev/vme16d32"; /* d32 is important !!! */`
238			`u_long pagesize;`
239			`struct gcsr *gcsr_map;`
240
241			`pagesize = sysconf(_SC_PAGESIZE); /* mmap likes to be page-aligned */`
242
243			`if ((vme = open(vmedev, O_RDWR)) == -1) {`
244			`perror("open");`
245			`fprintf(stderr, "Cannot open vme as %s to access GCSR\n", vmedev);`
246			`return 1;`
247			`}`
248
249			`/* "MAP_SHARED" is important here */`
250			`gcsr_map = (struct gcsr *) mmap(0, 0x1000, PROT_WRITE\|PROT_READ, MAP_SHARED,`
251			`vme, (u_long)gcsr_vme / pagesize * pagesize);`
252			`if (gcsr_map == (struct gcsr *) - 1) {`
253			`perror("mmap");`
254			`fprintf(stderr, "Cannot mmap() to remote bus address 0x%08X\n",`
255			`(u_long)gcsr_vme / pagesize * pagesize);`
256			`return 1;`
257			`}`
258
259			`/*`
260			`* use GCSR to start execution in MVME162`
261			`* adjust pointer to compensate for page alignement`
262			`*/`
263			`gcsr_map = (struct gcsr *)((u_long)gcsr_map + (u_long)gcsr_vme % pagesize);`
264
265			`if (reset) { /* reset the local bus... */`
266			`gcsr_map->board_scr \|= 0x80;`
267			`}`
268			`if (entry) { /* ...load start address... */`
269			`gcsr_map->gpr[0] = entry >> 16U;`
270			`gcsr_map->gpr[1] = entry & 0x0000FFFF;`
271			`}`
272			`if (go) { /* ... and kick it in the ass! */`
273			`gcsr_map->lmsig = 0x1;`
274			`}`
275			`}`
276
277			`/=================================================================== /`
278			`main(int argc, char *argv[])`
279			`{`
280			`char inpstr[256];`
281			`u_char image[256];`
282			`char hdrstr[64];`
283			`int i, j, k, result, size, line=0, lastrec=0;`
284			`long addr, tsize=0, naddr=0, blksize=0, blknum=1;`
285			`FILE *in;`
286			`char infile[256] = "";`
287			`char vmedev[32] = "/dev/vme32d32"; /* Assume "/dev/vme32d32" */`
288			`int vme, verbose = 0, go = 0, reset = 0, havefile = 0;`
289
290			`/* Parse the command line */`
291
292			`--argc;`
293
294			`while (argv++, argc--) {`
295			`if (**argv != '-') {`
296			`strcpy(infile, *argv);`
297			`havefile = 1;`
298			`} else if (!strcmp(*argv, "-v")) {`
299			`verbose = 1;`
300			`} else if (!strcmp(*argv, "-g")) {`
301			`go = 1;`
302			`} else if (!strcmp(*argv, "-r")) {`
303			`reset = 1;`
304			`/* } else if (!strcmp(argv, "-vme32")) { /`
305			`/* strcpy(vmedev, "/dev/vme32d32"); */`
306			`/* } else if (!strcmp(argv, "-vme24")) { /`
307			`/* strcpy(vmedev, "/dev/vme24d32"); */`
308			`/* } else if (!strcmp(argv, "-vme16")) { /`
309			`/* strcpy(vmedev, "/dev/vme16d32"); */`
310			`} else if (!strcmp(*argv, "-")) {`
311			`usage();`
312			`exit(0);`
313			`} else {`
314			`usage();`
315			`exit(0);`
316			`}`
317			`}`
318
319			`if (!havefile) {`
320			`if (!reset && !go) {`
321			`usage();`
322			`}`
323			`else {`
324			`MVMEControl(0, reset, go);`
325			`}`
326			`exit(0);`
327			`}`
328
329			`if ((in = fopen(infile, "r")) == NULL) {`
330			`perror("open");`
331			`fprintf(stderr, "Cannot open input file %s\n", infile);`
332			`exit(1);`
333			`}`
334
335			`if ((vme = open(vmedev, O_RDWR)) == -1) {`
336			`fprintf(stderr, "Cannot open vme as %s\n", vmedev);`
337			`}`
338
339			`while (fscanf(in, "%s", &inpstr) != EOF) {`
340			`line++;`
341			`if (validrec(inpstr) == 0) {`
342			`switch (issrec(inpstr)) {`
343			`case 0 :`
344			`hdr2str(inpstr, hdrstr);`
345			if (verbose) printf("HEADER string = `%s'\n", hdrstr);
346			`lastrec=HEADER;`
347			`break;`
348			`case 1 :`
349			`addr = getaddr(inpstr);`
350			`size = datasize(inpstr);`
351			`if (blksize == 0) {`
352			`blksize+=size;`
353			`naddr=addr+size;`
354			`if (verbose) printf("DATA\tS19\t$%04lX", addr);`
355			`lastrec=DATA19;`
356			`}`
357			`else if ((blksize!=0) && (addr==naddr)) {`
358			`blksize+=size;`
359			`naddr=addr+size;`
360			`}`
361			`else {`
362			`if (verbose) printf("\t$%04lX\t%lu", naddr-1, blksize);`
363			`if (verbose) printf("\t%d\n", blknum);`
364			`blknum+=1;`
365			`naddr=addr+size;`
366			`blksize=size;`
367			`if (verbose) printf("DATA\tS19\t$%04lX", addr);`
368			`lastrec=DATA19;`
369			`}`
370			`tsize += size;`
371			`if (vme == -1) break;`
372			`for (i = 0, j = 8, k = size; k-- > 0; i += 1, j += 2) {`
373			`image[i] = ahdtoi(inpstr[j])*0x10 + ahdtoi(inpstr[j+1]);`
374			`}`
375			`if (lseek(vme, addr, SEEK_SET) == -1) {`
376			`fprintf(stderr, "lseek() to vme address %08X failed\n", addr);`
377			`}`
378			`else {`
379			`if (write(vme, (u_char *)image, size) != size) {`
380			`fprintf(stderr, "Write to vme address %08X failed\n", addr);`
381			`}`
382			`}`
383			`break;`
384			`case 2 :`
385			`addr = getaddr(inpstr);`
386			`size = datasize(inpstr);`
387			`if (blksize == 0) {`
388			`blksize+=size;`
389			`naddr=addr+size;`
390			`if (verbose) printf("DATA\tS28\t$%06lX",addr);`
391			`lastrec=DATA28;`
392			`}`
393			`else if ((blksize!=0) && (addr==naddr)) {`
394			`blksize+=size;`
395			`naddr=addr+size;`
396			`}`
397			`else {`
398			`if (verbose) printf("\t$%06lX\t%lu",naddr-1,blksize);`
399			`if (verbose) printf("\t%d\n",blknum);`
400			`blknum+=1;`
401			`naddr=addr+size;`
402			`blksize=size;`
403			`if (verbose) printf("DATA\tS28\t$%06lX",addr);`
404			`lastrec=DATA28;`
405			`}`
406			`tsize += size;`
407			`if (vme == -1) break;`
408			`for (i = 0, j = 10, k = size; k-- > 0; i += 1, j += 2) {`
409			`image[i] = ahdtoi(inpstr[j])*0x10 + ahdtoi(inpstr[j+1]);`
410			`}`
411			`if (lseek(vme, addr, SEEK_SET) == -1) {`
412			`fprintf(stderr, "lseek() to vme address %08X failed\n", addr);`
413			`}`
414			`else {`
415			`if (write(vme, (u_char *)image, size) != size) {`
416			`fprintf(stderr, "Write to vme address %08X failed\n", addr);`
417			`}`
418			`}`
419			`break;`
420			`case 3 :`
421			`addr = getaddr(inpstr);`
422			`size = datasize(inpstr);`
423			`if (blksize == 0) {`
424			`blksize+=size;`
425			`naddr=addr+size;`
426			`if (verbose) printf("DATA\tS37\t$%08lX",addr);`
427			`lastrec=DATA37;`
428			`}`
429			`else if ((blksize!=0) && (addr==naddr)) {`
430			`blksize+=size;`
431			`naddr=addr+size;`
432			`}`
433			`else {`
434			`if (verbose) printf("\t$%08lX\t%lu",naddr-1,blksize);`
435			`if (verbose) printf("\t%d\n",blknum);`
436			`blknum+=1;`
437			`naddr=addr+size;`
438			`blksize=size;`
439			`if (verbose) printf("DATA\tS37\t$%08lX",addr);`
440			`lastrec=DATA37;`
441			`}`
442			`tsize += size;`
443			`if (vme == -1) break;`
444			`for (i = 0, j = 12, k = size; k-- > 0; i += 1, j += 2) {`
445			`image[i] = ahdtoi(inpstr[j])*0x10 + ahdtoi(inpstr[j+1]);`
446			`}`
447			`if (lseek(vme, addr, SEEK_SET) == -1) {`
448			`fprintf(stderr, "lseek() to vme address %08X failed\n", addr);`
449			`}`
450			`else {`
451			`if (write(vme, (u_char *)image, size) != size) {`
452			`fprintf(stderr, "Write to vme address %08X failed\n", addr);`
453			`}`
454			`}`
455			`break;`
456			`case 7 :`
457			`if (lastrec==DATA19){if (verbose) printf("\t$%04lX\t%lu",naddr-1,blksize);}`
458			`if (lastrec==DATA28){if (verbose) printf("\t$%06lX\t%lu",naddr-1,blksize);}`
459			`if (lastrec==DATA37){if (verbose) printf("\t$%08lX\t%lu",naddr-1,blksize);}`
460			`if (verbose) printf("\t%d\n",blknum);`
461			`addr = getaddr(inpstr);`
462			`if (verbose) printf("TERM\tS37");`
463			`printf("\nExecution address = $%08lX\n", addr);`
464			`lastrec=TERMINATOR;`
465			`break;`
466			`case 8 :`
467			`if (lastrec==DATA19){if (verbose) printf("\t$%04lX\t%lu",naddr-1,blksize);}`
468			`if (lastrec==DATA28){if (verbose) printf("\t$%06lX\t%lu",naddr-1,blksize);}`
469			`if (lastrec==DATA37){if (verbose) printf("\t$%08lX\t%lu",naddr-1,blksize);}`
470			`if (verbose) printf("\t%d\n",blknum);`
471			`addr = getaddr(inpstr);`
472			`if (verbose) printf("TERM\tS28");`
473			`printf("\nExecution address = $%06lX\n", addr);`
474			`lastrec=TERMINATOR;`
475			`break;`
476			`case 9 :`
477			`if (lastrec==DATA19){if (verbose) printf("\t$%04lX\t%lu",naddr-1,blksize);}`
478			`if (lastrec==DATA28){if (verbose) printf("\t$%06lX\t%lu",naddr-1,blksize);}`
479			`if (lastrec==DATA37){if (verbose) printf("\t$%08lX\t%lu",naddr-1,blksize);}`
480			`if (verbose) printf("\t%d\n",blknum);`
481			`addr = getaddr(inpstr);`
482			`if (verbose) printf("TERM\tS19");`
483			`printf("\nExecution address = $%04lX\n", addr);`
484			`lastrec=TERMINATOR;`
485			`break;`
486			`}`
487			`}`
488			`else {`
489			`printf("\nError on line %d. ",line);`
490			`switch (validrec(inpstr)) {`
491			`case -1 : {printf("SRecord contains invalid characters.\n"); break; }`
492			`case -2 : {printf("SRecord checksum is invalid.\n"); break;}`
493			`case -3 : {printf("SRecord length is invalid.\n"); break;}`
494			`}`
495			`exit(1);`
496			`}`
497			`}`
498
499			`if ((lastrec==DATA19) \|\| (lastrec==DATA28) \|\| (lastrec==DATA37)) {`
500			`if (lastrec==DATA19){if (verbose) printf("\t$%04lX\t%lu",naddr-1,blksize);}`
501			`if (lastrec==DATA28){if (verbose) printf("\t$%06lX\t%lu",naddr-1,blksize);}`
502			`if (lastrec==DATA37){if (verbose) printf("\t$%08lX\t%lu",naddr-1,blksize);}`
503			`if (verbose) printf("\t%d\n",blknum);`
504			`printf("ERROR: terminator record not found.\n");`
505			`}`
506			`else {`
507			`for (i = 0x000FFFF; i-- > 0;) ; /* mystique delay... */`
508			`MVMEControl(addr, reset, go);`
509			`}`
510			`if (verbose) printf("total data size = %lu bytes\n", tsize);`
511			`}`