2020-05-23 04:03:12 +10:00
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S0 Returns address of PSP TOS. When PSP is empty,
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'S == S0
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2020-04-21 21:45:23 +10:00
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PICK Pick nth item from stack. "0 PICK" = DUP,
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"1 PICK" = OVER.
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ROLL Rotate PSP over n items. "1 ROLL" = SWAP,
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"2 ROLL" = ROT. 0 is noop.
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