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17 lines
516 B
Plaintext
17 lines
516 B
Plaintext
CODE DUP AX POPx, AX PUSHx, AX PUSHx, ;CODE
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CODE ?DUP AX POPx, AX AX ORxx, AX PUSHx,
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IFNZ, AX PUSHx, THEN, ;CODE
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CODE DROP AX POPx, ;CODE
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CODE SWAP AX POPx, BX POPx, AX PUSHx, BX PUSHx, ;CODE
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CODE OVER ( a b -- a b a )
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DI SP MOVxx, AX [DI] 2 MOVx[]+, AX PUSHx, ;CODE
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CODE PICK
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DI POPx, DI SHLx1, ( x2 )
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DI SP ADDxx, DI [DI] MOVx[], DI PUSHx,
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;CODE
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CODE (roll) ( "2 3 4 5 4 --> 2 4 5 5". See B311 )
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CX POPx, SI SP MOVxx, SI CX ADDxx,
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DI SI MOVxx, SI DECx, SI DECx,
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STD, REPZ, MOVSB,
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;CODE
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