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# zasm - Z80 Assembler – Version 4.4

# Targets

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| ### #target TZX #### 0x12: Pure tone Most #tzx directives create TZX file blocks which do not encode a Assembler directives: #code Including C Source Files: #code#code block. You can either use the symbolic name of a TZX file block, e.g. `PURE-TONE` or the hexadecimal number, e.g. `0x12`.
    #tzx PURE-TONE, [COUNT=]num_pulses, [PULSE=]cc_per_pulse
TZX block 0x12 can be used to "manually" create a pilot tone. The pulse length is measured in ZX Spectrum clock cycles. (3.5MHz) COUNT: Number of pulses PULSE: Length of each pulse expressed in T-states. |

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