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Used by the routines at PO_ENTER, PO_ANY and MAIN_EXEC.
This subroutine is called whenever the printer buffer is to have its contents passed to the printer.
COPY_BUFF 0ECD DI Disable the maskable interrupt.
0ECE LD HL,$5B00 The base address of the printer buffer.
0ED1 LD B,$08 There are eight pixel lines.
COPY_3 0ED3 PUSH BC Save the line number.
0ED4 CALL COPY_LINE Print the line.
0ED7 POP BC Fetch the line number.
0ED8 DJNZ COPY_3 Jump back until 8 lines have been printed.
This entry point is used by the routine at COPY.
COPY_END 0EDA LD A,$04 Stop the printer motor.
0EDE EI Enable the maskable interrupt and continue into CLEAR_PRB.
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