57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
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void comando_dir(byte cmd) {
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// send DIR command
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send_byte_to_MCU(cmd);
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if(TIMEOUT) return;
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// send filename
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send_string_to_MCU(filename);
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if(TIMEOUT) return;
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// get MCU response
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byte data = receive_byte_from_MCU();
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if(data == ERR_RESPONSE) {
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print_string_response();
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return;
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}
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byte paused = 0;
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while(1) {
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if(!paused) {
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// ask for a text line
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send_byte_to_MCU(OK_RESPONSE);
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if(TIMEOUT) break;
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// get MCU response byte
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data = receive_byte_from_MCU();
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if(TIMEOUT) break;
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if(data == ERR_RESPONSE) break; // no more lines of text
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// OK_RESPONSE, MCU will send a line of text terminated by '\r'
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while(1) {
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data = receive_byte_from_MCU();
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if(TIMEOUT) return;
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woz_putc(data);
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if(data == '\r') break; // line terminator
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data = apple1_readkey();
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if(data==27) paused = 27;
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else if(data!=0) paused = 1;
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}
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}
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else {
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if(paused==27) {
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send_byte_to_MCU(ERR_RESPONSE);
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break;
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}
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else {
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send_byte_to_MCU(WAIT_RESPONSE);
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data = apple1_readkey();
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if(data == 13) paused = 0;
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else if(data == 27) paused = 27;
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}
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}
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}
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}
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