Programming/Assembly Reference/KERNAL
The routine is used to enter data via the keyboard or via a device that was previously defined with CHKIN ($FFC6). The input is comparable to the INPUT statement in Basic.
When called, the character is loaded into the accumulator and also displayed on the screen.
Here is an example until the RETURN key is pressed:
loop
. JSR $FFCF
. CMP #$0D
. BNE LOOP
. RTS
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