static size_t lha_pm2_decoder_read(void *data, uint8_t *buf)
{
LHAPM2Decoder *decoder = data;
size_t result;
int code;
// On first pass through, build initial lookup trees.
if (decoder->tree_state == PM2_REBUILD_UNBUILT) {
// First bit in stream is discarded?
read_bit(&decoder->bit_stream_reader);
rebuild_tree(decoder);
}
result = 0;
code = read_from_tree(&decoder->bit_stream_reader, decoder->code_tree);
if (code < 0) {
return 0;
}
if (code < 8) {
read_single_byte(decoder, (unsigned int) code, buf, &result);
} else {
copy_from_history(decoder, (unsigned int) code - 8,
buf, &result);
}
return result;
}
char* Extsram::verify_sram_with_rand(char* str, uint8_t num_of_runs){
//leds_control l;
char status_ok[] PROGMEM = "sram verification succesfull";
char status_nok[] PROGMEM = "rand sram verification failed at address:";
char tmp_string[6];
address_result result;
uint16_t a;
result.result = ok;
result.addr = 0;
uint8_t rand_d;
for(uint16_t r=0; r <= num_of_runs; r++){
//l.L1 = l.sw;
for(a=0; a<EXTSRAM_SIZ; a++){
rand_d = rand();
write_single_byte(a, rand_d);
if(read_single_byte(a) != rand_d){
result.addr = a;
result.result = nok;
break;
}
}
}
if(not result.result){
strcpy(str, status_nok);
utoa(result.addr, tmp_string, 10);
strcat(str, tmp_string);
}
else{
strcpy(str, status_ok);
}
return str;
}