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LOGIC FUNCTIONS
These are abbreviated details from the section WORD
LIST grouped here for convenience. On TDS9092 a false
flag is 0 and a true flag any other number. When a true flag is
returned from a function it is 1.
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-TEXT
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( addr1 n
addr2 - f )
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Compares two text strings.
f=0 if identical. It compares strings word by word, not byte by byte so
that the strings should have an even number of characters.
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0=0=
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( n - f )
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Converts number n into
logically identical flag. Opposite of NOT .
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AND
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( n1 n2 -
n3 )
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n3 is the logical
AND
function of n1 and n2.
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BETWEEN
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( n1 n2 n3
- f )
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True if n1 is in the range
n2 to n3 inclusive.
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BIT
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( n1 - n2 )
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n2 has one bit set. This is bit 0 to bit 15
according the input number n1.
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NOT
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( n - f )
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Converts number n into
opposite flag 0 or 1. Opposite of 0=0= .
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OR
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( n1 n2 -
n3 )
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n3 is the logical
OR
function of n1 and n2.
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TOGGLE
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( addr b - )
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Exclusive or the content
of byte at address addr with the byte b
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WITHIN
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( n1 n2 n3
- f )
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True if n1 is in the range
n2 to n3 where n2 and n3 are like the parameters of a DO loop
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XOR
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( n1 n2 - n3 )
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n3 is the logical exclusive or of n1 and n2.
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