apple1-videocard-lib/demos/sdcard/cmd_dump.h
2022-02-16 08:58:59 +01:00

59 lines
1.1 KiB
C

// global start_address
// global end_address
void comando_dump() {
// send command byte
send_byte_to_MCU(CMD_READ);
if(TIMEOUT) return;
// send filename
send_string_to_MCU(filename);
if(TIMEOUT) return;
// response
byte response = receive_byte_from_MCU();
if(TIMEOUT) return;
if(response == ERR_RESPONSE) {
// error with file, print message
print_string_response();
return;
}
// get file length in tmpword
receive_word_from_mcu();
if(TIMEOUT) return;
// 1234567890123456789012345678901234567890
// 0000: 00 00 00 00 00 00 00 00
// get file bytes
byte row = 0;
byte print_on = 1;
for(word t=0;t!=tmpword;t++) {
byte data = receive_byte_from_MCU();
if(TIMEOUT) return;
if(!(t>=start_address && t<=end_address)) continue;
if(!print_on) continue;
if(row == 0) {
woz_putc('\r');
woz_print_hexword(t);
woz_puts(": ");
}
woz_print_hex(data);
woz_putc(' ');
row++;
row &= 7;
if(apple1_readkey()) {
woz_puts("*BRK*\r");
print_on = 0;
}
}
}