ian@sibyl.eleceng.ua.oz.au (06/02/90)
Archive-name: intelhex/31-May-90
Original-posting-by: ian@sibyl.eleceng.ua.oz.au
Original-subject: intelhex
Reposted-by: emv@math.lsa.umich.edu (Edward Vielmetti)
[Reposted from comp.sys.nsc.32k.
Comments on this service to emv@math.lsa.umich.edu (Edward Vielmetti).]
Someone (Dave Rand?) Posted a little program "intelhex.c". I don't know what
this generates, but it certainly isn't what our prom burner calls intel-hex
format. Here is a program which does generate a format acceptable to our prom
burner. The "unsigned" mightn't be necessary but this program is firmly in the
"quick hack" category so I haven't bothered to check.
----------------------------cut here--------------------------------------
#include <stdio.h>
main()
{
int i, nbytes = 0;
unsigned char bytes[32];
int offset = 0;
do
{
int ret;
int checksum;
unsigned char type;
ret = fread(bytes, 1, 32, stdin);
if (ret == 0)
{
type = 1;
offset -= nbytes;
}
else
type = 0;
nbytes = ret;
checksum = nbytes;
checksum += (offset & 0xff);
checksum += ((offset >> 8) & 0xff);
checksum += type;
printf(":%2.2X%4.4X%2.2X", nbytes, offset, type);
offset += nbytes;
for (i = 0; i < nbytes; i++)
{
printf("%2.2X", bytes[i]);
checksum += bytes[i];
}
printf("%2.2X\n", ((-checksum) & 0xff));
}
while (nbytes != 0);
exit (0);
}
------------------------------------end-----------------------------------
Ian Dall