;by James Newton and Nikolai Golovchenko
;Enter with an ASCII character representing the desired base for a radix conversion. ;B=Binary ;D=Decimal ;H=Hex ;O=Octal ; ;Challenge 1: exit with a different bit set for each base. ;Challenge 2: exit with the radix (2 for binary, 10 for decimal, 16 for hex, 8 for octal) ;Challenge 3: exit with a jump table index ; ;My best: Radix ds 1 ;radix to change data from RadixBin = Radix.1 ;B 01000011 RadixOct = Radix.4 ;O 01010000 RadixDec = Radix.2 ;D 01000101 RadixHex = Radix.3 ;H 01001001 Answer1 inc radix ;B=3,D=5,H=9,N=15,O=16 ;done jb radix.0, binary jb radix.1, decimal jb radix.2, hex jb radix.3, octal Answer2 inc radix clrb radix.6 ;B=3,D=5,H=9,O=16 sb radix.2 ;if not D (5) dec radix ;B=2,D=5,H=8,O=15 snb radix.1 ;if D or H rl radix ;B=2,D=11,H=17,O=15 clrb radix.0 ;B=2,D=10,H=16,O=14 snb radix.2 ;if O clrb radix.1 ;B=2,D=10,H=16,O=12 clrb radix.2 ;B=2,D=10,H=16,O=8 ;or... inc radix mov w, #2 snb RadixOct mov w, #8 snb radixDec mov w, #10 snb radixHex mov w, #16 ;and if you want to handle N = nibble inc radix mov w, #8 snb radixDec mov w, #5 ;D or N snb radixHex mov w, #16 ;H snb radixBin mov w, #2 ;B or N snb radixDec rl radix ;if both .0 and .1 were set radix = 4 ;if only .1 was set radix = 10 Answer3 clrb radix.6 dec radix ;B=2,D=5,H=8,O=15 clc rr radix ;B=1,D=2,H=4,O=7 dec radix ;B=0,D=1,H=3,O=6 clb radix.2 ;B=0,D=1,H=3,O=2
|file: /Techref/scenix/lib/math/radix/parseradix-jn_sx.htm, 1KB, , updated: 2004/6/10 14:40, local time: 2019/8/18 04:29,
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