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e31527f5ac
There are many situations where it can be useful. Worth it.
17 lines
545 B
Plaintext
17 lines
545 B
Plaintext
CODE (roll) ( "2 3 4 5 4 --> 2 4 5 5". See B311 )
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CX POPx, CX 2 ADDxi, CALL, lblchkPS @ RPCn, CX 2 SUBxi,
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SI SP MOVxx, SI CX ADDxx,
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DI SI MOVxx, DI 2 ADDxi, STD, REPZ, MOVSB,
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;CODE
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CODE SWAP AX POPx, BX POPx, AX PUSHx, BX PUSHx, ;CODE
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CODE DROP 1 chkPS, AX POPx, ;CODE
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CODE 2DROP 2 chkPS, SP 4 ADDxi, ;CODE
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CODE 2DUP 2 chkPS,
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AX POPx, BX POPx,
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BX PUSHx, AX PUSHx, BX PUSHx, AX PUSHx,
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;CODE
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CODE S0 AX PS_ADDR MOVxI, AX PUSHx, ;CODE
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CODE 'S SP PUSHx, ;CODE
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CODE AND 2 chkPS,
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AX POPx, BX POPx, AX BX ANDxx, AX PUSHx, ;CODE
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