int load_hex(FILE *file)
{
char buffer[BUFFER_SIZE];
char *b;
int num_bytes;
int address;
int check;
int value;
int high = 0;
while(fgets(buffer, BUFFER_SIZE, file))
{
if(buffer[0] == ':')
{
/* colon */
b = buffer + 1;
/* number of bytes on the line */
num_bytes = hex_byte(b); b += 2;
check = num_bytes;
/* the starting address */
address = hex_byte(b) << 8; b += 2;
address |= hex_byte(b); b+= 2;
check += (address >> 8) + (address & 0xff);
/* a zero? */
b += 2;
/* the data */
if(num_bytes == 0)
{
/* Transfer address */
hex_transfer_address(address);
} else {
while(num_bytes--)
{
value = hex_byte(b); b += 2;
hex_data(address++, value);
check += value;
}
if (address > high) high = address;
/* the checksum */
value = hex_byte(b);
if(((0x100 - check) & 0xff) != value)
{
return(-1);
}
}
}
}
/**
* M100 I
* Init memory for the M100 tests. (Automatically applied on the first M100.)
*/
void init_free_memory(char *ptr, int16_t size) {
SERIAL_ECHOLNPGM("Initializing free memory block.\n\n");
size -= 250; // -250 to avoid interrupt activity that's altered the stack.
if (size < 0) {
SERIAL_ECHOLNPGM("Unable to initialize.\n");
return;
}
ptr += 8; // move a few bytes away from the heap just because we don't want
// to be altering memory that close to it.
memset(ptr, TEST_BYTE, size);
SERIAL_ECHO(size);
SERIAL_ECHOLNPGM(" bytes of memory initialized.\n");
for (int16_t i = 0; i < size; i++) {
if (ptr[i] != TEST_BYTE) {
SERIAL_ECHOPAIR("? address : ", hex_address(ptr + i));
SERIAL_ECHOLNPAIR("=", hex_byte(ptr[i]));
SERIAL_EOL();
}
}
}
