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 Introduction PEEK/POKE Functions
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 INBYTE()     Reads an 8 byte from a port
 INWORD()     Reads in a 16-bit word from a port
 OUTBYTE()    Sends a byte to a port
 OUTWORD()    Sends a 16-bit word to a port
 PEEKBYTE()   Reads a byte from memory
 PEEKSTR()    Reads a byte sequence from memory
 PEEKWORD()   Reads a 16-bit word from memory
 POKEBYTE()   Writes a byte to memory
 POKEWORD()   Writes a 16-bit word to memory

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