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04185: THE 'CURSOR UP EDITING' SUBROUTINE
The address of this routine is derived from an offset found in the editing keys table.
ED_UP 04185 BIT 5,(IY+55) Return if in 'INPUT mode' (bit 5 of FLAGX set).
04189 RET NZ
04190 LD HL,(23625) Fetch the current line number (E-PPC) and its start address.
04193 CALL LINE_ADDR
04196 EX DE,HL HL now points to the previous line.
04197 CALL LINE_NO This line's number is fetched.
04200 LD HL,23626 This is E-PPC-hi.
04203 CALL LN_STORE The line number is stored.
This entry point is used by the routine at ED_DOWN.
ED_LIST 04206 CALL AUTO_LIST A new automatic listing is now produced and channel 'K' re-opened before returning to ED_LOOP.
04209 LD A,0
04211 JP CHAN_OPEN
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