Repeat previously printed character
Repeats the last previously printed character if it is a printable charcter. Only characters with codepoint < 256 are supported.
amount = 0, adjusts it to 1.
This has the same effect as printing the character multiple times.
amountto the number of columns between the cursor (inclusive) and the right edge of the screen. (allows wrap with multi cell characters only)
also works with codepoints >= 256