System variables
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23734: Channel information
Initialised by the routine at NEW (from the initial channel information table), read by the routines at CHAN_FLAG, CLOSE_2 and OPEN, and updated by the routine at KEY_INPUT. For each channel the output routine address comes before the input routine address and the channel's code.
CHINFO 23734 DEFW PRINT_OUT Keyboard.
23736 DEFW KEY_INPUT
23738 DEFB "K"
23739 DEFW PRINT_OUT Screen.
23741 DEFW REPORT_J
23743 DEFB "S"
23744 DEFW ADD_CHAR Work space.
23746 DEFW REPORT_J
23748 DEFB "R"
23749 DEFW PRINT_OUT Printer.
23751 DEFW REPORT_J
23753 DEFB "P"
23754 DEFB 128 End marker.
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