#target TZX

0x2B: Set signal level

#tzx POLARITY, [POLARITY=]polarity

Pseudo instructions: defl, set and '='
Labels: SETSet the signal polarity. The ZX Spectrum tape loading routines are polarity insensitive but e.g. the ZX81 routines weren't. This block can be used to force the polarity of the following pulses.

POLARITY: 0=low, 1=high.