Kryptostack
Operators Section Extension

Additional operators without a relation to the red book language.

This operators are entries in the kryptodict dictionary.

dictstack$

Stack:
$ --\ K $

Pushes a duplicate of the dictionary stack as stack object onto the operand stack.

See also
dictstack

__endstack

Stack:
$ M\ X_1\ ...\ X_n\ --\ K $

Operator creates a stack object from operand stack.

See also
A synonym of $

$

Stack:
$ M\ X_1\ ...\ X_n\ --\ K $

Operator creates a stack object from operand stack.
Thus [ $ creates an empty stack object on the operand stack.

See also
A synonym of __endstack

execstack$

Stack:
$ --\ K $

Pushes a duplicate of the execution stack as stack object onto the operand stack.

See also
execstack

gcd

Stack:
$ I\ I\ --\ I $

The greatest common divisor.
German version: ggT

index$

Stack:
$ K\ I\ -- $

removes K and I from the operand stack, counts down to the Ith element
from the top of K, and pushes a copy of that element onto K.

is$

Stack:
$ K\ --\ K $

Operator checks if the top most object on the operand stack is a stack object.

lcm

Stack:
$ I\ I\ --\ I $

The least common multiple.
German version: kgV

pop$

Stack:
$ K\ --\ X $

Operator pops one element from stack object onto the operand stack.

push$

Stack:
$ K\ X\ -- $

Operator pushes one object from the operand stack onto the stack object.

xgcd

Stack:
$ I_a\ I_b\ --\ I_{gcd}\ I_s\ I_t $

Extended Euclidean algorithm such that $ gcd(a,b) = sa + tb $
German version: xggT

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