- res = f_lseek(&File, pos);
- if (!res) {
- bytes_rw = 0;
- timer = get_timer(0);
- while (bytes) {
- unsigned int cnt, br;
-
- if (bytes >= BUFFER_SIZE) {
- cnt = BUFFER_SIZE;
- bytes -= BUFFER_SIZE;
- } else {
- cnt = bytes; bytes = 0;
- }
- if (dowrite) {
- if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
- buserr = 1;
- break;
- }
- z80_read_block(buffer, addr, cnt);
- z80_bus_cmd(Release);
- res = f_write(&File, buffer, cnt, &br);
- if (res != FR_OK)
- break;
- } else {
- res = f_read(&File, buffer, cnt, &br);
- if (res != FR_OK)
- break;
- if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
- buserr = 1;
- break;
- }
- z80_write_block(buffer, addr, br);
- z80_bus_cmd(Release);
- }
- addr += br;
-
- bytes_rw += br;
- if (cnt != br) {
- if (dowrite)
- printf_P(PSTR("Disk full?\n"));
+ bytes_rw = 0;
+ timer = get_timer(0);
+ while (bytes) {
+ unsigned int cnt, br;
+
+ if (bytes >= BUFFER_SIZE) {
+ cnt = BUFFER_SIZE;
+ bytes -= BUFFER_SIZE;
+ } else {
+ cnt = bytes; bytes = 0;
+ }
+ if (dowrite) {
+ if (!(z80_bus_cmd(Request) & ZST_ACQUIRED)) {
+ buserr = 1;