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|00000010| 05 f4 0d 00 1e 29 f4 20 | 50 72 6f 67 72 61 6d 20 |.....). |Program |
|00000020| 62 79 20 4d 69 63 68 61 | 65 6c 20 52 6f 7a 64 6f |by Micha|el Rozdo|
|00000030| 62 61 20 31 38 2d 31 32 | 2d 39 32 0d 00 28 27 f4 |ba 18-12|-92..('.|
|00000040| 20 43 6f 6c 6f 75 72 20 | 70 61 6c 65 74 74 65 20 | Colour |palette |
|00000050| 62 79 20 4a 65 61 6e 20 | 56 61 6e 20 4d 6f 75 72 |by Jean |Van Mour|
|00000060| 69 6b 0d 00 32 2d f4 20 | 4f 72 69 67 69 6e 61 6c |ik..2-. |Original|
|00000070| 20 49 64 65 61 20 66 72 | 6f 6d 20 27 46 72 61 63 | Idea fr|om 'Frac|
|00000080| 74 61 6c 20 52 65 70 6f | 72 74 20 23 32 34 27 0d |tal Repo|rt #24'.|
|00000090| 00 3c 05 f4 0d 00 46 31 | f4 20 51 75 61 73 69 2d |.<....F1|. Quasi-|
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|00000cc0| 3a 63 6f 64 65 25 21 34 | 3d 2d 31 0d 04 b0 2a c8 |:code%!4|=-1...*.|
|00000cd0| 99 20 22 4f 53 5f 52 65 | 61 64 56 64 75 56 61 72 |. "OS_Re|adVduVar|
|00000ce0| 69 61 62 6c 65 73 22 2c | 20 63 6f 64 65 25 2c 20 |iables",| code%, |
|00000cf0| 63 6f 64 65 25 0d 04 ba | 11 73 63 72 73 74 25 3d |code%...|.scrst%=|
|00000d00| 21 63 6f 64 65 25 0d 04 | c4 11 4c 25 3d 63 6f 64 |!code%..|..L%=cod|
|00000d10| 65 25 2b 6d 65 6d 25 0d | 04 ce 0d 78 63 3d 30 3a |e%+mem%.|...xc=0:|
|00000d20| 79 63 3d 31 0d 04 d8 0b | 78 3d 32 3a 79 3d 33 0d |yc=1....|x=2:y=3.|
|00000d30| 04 e2 08 63 63 3d 34 0d | 04 ec 0b 6d 3d 35 3a 6e |...cc=4.|...m=5:n|
|00000d40| 3d 36 0d 04 f6 07 72 3d | 37 0d 05 00 0a 61 64 64 |=6....r=|7....add|
|00000d50| 72 3d 38 0d 05 0a 15 e3 | 20 6f 70 74 25 3d 38 20 |r=8.....| opt%=8 |
|00000d60| b8 20 31 30 20 88 20 32 | 0d 05 14 0c 50 25 3d 63 |. 10 . 2|....P%=c|
|00000d70| 6f 64 65 25 0d 05 1e 0d | 5b 4f 50 54 20 6f 70 74 |ode%....|[OPT opt|
|00000d80| 25 0d 05 28 16 2e 61 72 | 25 20 45 51 55 44 20 52 |%..(..ar|% EQUD R|
|00000d90| 25 2a 36 35 35 33 36 0d | 05 32 0f 2e 61 78 25 20 |%*65536.|.2..ax% |
|00000da0| 45 51 55 44 20 30 0d 05 | 3c 0f 2e 61 79 25 20 45 |EQUD 0..|<..ay% E|
|00000db0| 51 55 44 20 30 0d 05 46 | 16 2e 61 78 6f 25 20 45 |QUD 0..F|..axo% E|
|00000dc0| 51 55 44 20 41 2a 36 35 | 35 33 36 0d 05 50 16 2e |QUD A*65|536..P..|
|00000dd0| 61 79 6f 25 20 45 51 55 | 44 20 42 2a 36 35 35 33 |ayo% EQU|D B*6553|
|00000de0| 36 0d 05 5a 19 2e 61 78 | 69 25 20 45 51 55 44 20 |6..Z..ax|i% EQUD |
|00000df0| 68 69 6e 63 2a 36 35 35 | 33 36 0d 05 64 19 2e 61 |hinc*655|36..d..a|
|00000e00| 79 69 25 20 45 51 55 44 | 20 76 69 6e 63 2a 36 35 |yi% EQUD| vinc*65|
|00000e10| 35 33 36 0d 05 6e 16 2e | 61 6d 25 20 45 51 55 44 |536..n..|am% EQUD|
|00000e20| 20 70 6d 2a 36 35 35 33 | 36 0d 05 78 16 2e 61 6e | pm*6553|6..x..an|
|00000e30| 25 20 45 51 55 44 20 70 | 6e 2a 36 35 35 33 36 0d |% EQUD p|n*65536.|
|00000e40| 05 82 18 2e 61 73 63 72 | 73 74 25 20 45 51 55 44 |....ascr|st% EQUD|
|00000e50| 20 73 63 72 73 74 25 0d | 05 8c 0d 2e 61 73 70 74 | scrst%.|....aspt|
|00000e60| 65 6d 70 25 0d 05 96 0a | 2e 64 6f 69 74 25 0d 05 |emp%....|.doit%..|
|00000e70| a0 14 53 54 4d 46 44 20 | 52 31 33 21 2c 7b 52 31 |..STMFD |R13!,{R1|
|00000e80| 34 7d 0d 05 aa 14 53 54 | 52 20 52 31 33 2c 61 73 |4}....ST|R R13,as|
|00000e90| 70 74 65 6d 70 25 0d 05 | b4 0e 4c 44 52 20 72 2c |ptemp%..|..LDR r,|
|00000ea0| 20 61 72 25 0d 05 be 19 | 4c 44 52 20 6d 2c 20 61 | ar%....|LDR m, a|
|00000eb0| 6d 25 3a 4c 44 52 20 6e | 2c 20 61 6e 25 0d 05 c8 |m%:LDR n|, an%...|
|00000ec0| 15 4c 44 52 20 61 64 64 | 72 2c 20 61 73 63 72 73 |.LDR add|r, ascrs|
|00000ed0| 74 25 0d 05 d2 0f 4c 44 | 52 20 79 2c 20 61 79 6f |t%....LD|R y, ayo|
|00000ee0| 25 0d 05 dc 0e 53 54 52 | 20 79 2c 20 61 79 25 0d |%....STR| y, ay%.|
|00000ef0| 05 e6 12 4d 4f 56 20 79 | 63 2c 20 23 76 70 69 78 |...MOV y|c, #vpix|
|00000f00| 25 0d 05 f0 0d 2e 72 6f | 77 6c 6f 6f 70 25 0d 05 |%.....ro|wloop%..|
|00000f10| fa 0f 4c 44 52 20 78 2c | 20 61 78 6f 25 0d 06 04 |..LDR x,| axo%...|
|00000f20| 0e 53 54 52 20 78 2c 20 | 61 78 25 0d 06 0e 12 4d |.STR x, |ax%....M|
|00000f30| 4f 56 20 78 63 2c 20 23 | 68 70 69 78 25 0d 06 18 |OV xc, #|hpix%...|
|00000f40| 0d 2e 63 6f 6c 6c 6f 6f | 70 25 0d 06 22 0e 4d 4f |..colloo|p%..".MO|
|00000f50| 56 20 63 63 2c 20 23 31 | 0d 06 2c 0b 2e 63 6c 6f |V cc, #1|..,..clo|
|00000f60| 6f 70 25 0d 06 36 26 a4 | 73 71 75 31 36 28 78 2c |op%..6&.|squ16(x,|
|00000f70| 20 31 33 2c 20 31 31 2c | 20 31 32 2c 20 31 34 29 | 13, 11,| 12, 14)|
|00000f80| 20 3b 52 31 33 3d 78 2a | 78 0d 06 40 26 a4 73 71 | ;R13=x*|x..@&.sq|
|00000f90| 75 31 36 28 79 2c 20 31 | 30 2c 20 31 31 2c 20 31 |u16(y, 1|0, 11, 1|
|00000fa0| 32 2c 20 31 34 29 20 3b | 52 31 30 3d 79 2a 79 0d |2, 14) ;|R10=y*y.|
|00000fb0| 06 4a 15 41 44 44 20 52 | 31 34 2c 20 52 31 33 2c |.J.ADD R|14, R13,|
|00000fc0| 20 52 31 30 0d 06 54 0e | 43 4d 50 20 52 31 34 2c | R10..T.|CMP R14,|
|00000fd0| 20 72 0d 06 5e 0e 42 47 | 45 20 67 6f 74 63 63 25 | r..^.BG|E gotcc%|
|00000fe0| 0d 06 68 29 53 55 42 53 | 20 52 31 33 2c 20 52 31 |..h)SUBS| R13, R1|
|00000ff0| 33 2c 20 52 31 30 3a 52 | 53 42 4d 49 20 52 31 33 |3, R10:R|SBMI R13|
|00001000| 2c 20 52 31 33 2c 20 23 | 30 0d 06 72 13 53 55 42 |, R13, #|0..r.SUB|
|00001010| 20 52 31 33 2c 20 52 31 | 33 2c 20 6d 0d 06 7c 20 | R13, R1|3, m..| |
|00001020| a4 6d 75 6c 31 36 28 78 | 2c 20 79 2c 20 31 30 2c |.mul16(x|, y, 10,|
|00001030| 20 31 31 2c 20 31 32 2c | 20 31 34 29 0d 06 86 1f | 11, 12,| 14)....|
|00001040| 41 44 44 20 79 2c 20 52 | 31 30 2c 20 52 31 30 3a |ADD y, R|10, R10:|
|00001050| 53 55 42 20 79 2c 20 79 | 2c 20 6e 0d 06 90 0e 4d |SUB y, y|, n....M|
|00001060| 4f 56 20 78 2c 20 52 31 | 33 0d 06 9a 12 41 44 44 |OV x, R1|3....ADD|
|00001070| 20 63 63 2c 20 63 63 2c | 20 23 31 0d 06 a4 0f 43 | cc, cc,| #1....C|
|00001080| 4d 50 20 63 63 2c 20 23 | 4d 25 0d 06 ae 0e 42 4c |MP cc, #|M%....BL|
|00001090| 45 20 63 6c 6f 6f 70 25 | 0d 06 b8 0e 4d 4f 56 20 |E cloop%|....MOV |
|000010a0| 63 63 2c 20 23 31 0d 06 | c2 05 3a 0d 06 cc 0b 2e |cc, #1..|..:.....|
|000010b0| 67 6f 74 63 63 25 0d 06 | d6 12 53 55 42 20 63 63 |gotcc%..|..SUB cc|
|000010c0| 2c 20 63 63 2c 20 23 31 | 0d 06 e0 24 41 44 52 20 |, cc, #1|...$ADR |
|000010d0| 52 31 34 2c 20 6c 75 74 | 25 3a 4c 44 52 42 20 63 |R14, lut|%:LDRB c|
|000010e0| 63 2c 20 5b 52 31 34 2c | 20 63 63 5d 0d 06 ea 05 |c, [R14,| cc]....|
|000010f0| 3a 0d 06 f4 2f 4c 44 52 | 42 20 52 31 34 2c 20 5b |:.../LDR|B R14, [|
|00001100| 61 64 64 72 5d 20 3b 41 | 53 53 55 4d 45 20 fb 20 |addr] ;A|SSUME . |
|00001110| 4e 4f 57 20 49 4e 20 63 | 63 20 28 30 b8 31 35 29 |NOW IN c|c (0.15)|
|00001120| 0d 06 fe 0e 54 53 54 20 | 78 63 2c 20 23 31 0d 07 |....TST |xc, #1..|
|00001130| 08 2a 80 4e 45 20 52 31 | 34 2c 52 31 34 2c 23 31 |.*.NE R1|4,R14,#1|
|00001140| 35 3a 84 52 4e 45 20 52 | 31 34 2c 52 31 34 2c 63 |5:.RNE R|14,R14,c|
|00001150| 63 2c 4c 53 4c 20 23 34 | 0d 07 12 24 80 45 51 20 |c,LSL #4|...$.EQ |
|00001160| 52 31 34 2c 52 31 34 2c | 23 32 34 30 3a 84 52 45 |R14,R14,|#240:.RE|
|00001170| 51 20 52 31 34 2c 52 31 | 34 2c 63 63 0d 07 1c 14 |Q R14,R1|4,cc....|
|00001180| 53 54 52 42 20 52 31 34 | 2c 20 5b 61 64 64 72 5d |STRB R14|, [addr]|
|00001190| 0d 07 26 05 3a 0d 07 30 | 16 41 44 44 4e 45 20 61 |..&.:..0|.ADDNE a|
|000011a0| 64 64 72 2c 61 64 64 72 | 2c 23 31 0d 07 3a 0e 4c |ddr,addr|,#1..:.L|
|000011b0| 44 52 20 79 2c 20 61 79 | 25 0d 07 44 50 4c 44 52 |DR y, ay|%..DPLDR|
|000011c0| 20 78 2c 20 61 78 25 3a | 4c 44 52 20 52 31 34 2c | x, ax%:|LDR R14,|
|000011d0| 20 61 78 69 25 3a 41 44 | 44 20 78 2c 78 2c 52 31 | axi%:AD|D x,x,R1|
|000011e0| 34 3a 53 54 52 20 78 2c | 20 61 78 25 3a 53 55 42 |4:STR x,| ax%:SUB|
|000011f0| 53 20 78 63 2c 20 78 63 | 2c 20 23 31 3a 42 47 54 |S xc, xc|, #1:BGT|
|00001200| 20 63 6f 6c 6c 6f 6f 70 | 25 0d 07 4e 45 4c 44 52 | colloop|%..NELDR|
|00001210| 20 52 31 34 2c 20 61 79 | 69 25 3a 41 44 44 20 79 | R14, ay|i%:ADD y|
|00001220| 2c 79 2c 52 31 34 3a 53 | 54 52 20 79 2c 20 61 79 |,y,R14:S|TR y, ay|
|00001230| 25 3a 53 55 42 53 20 79 | 63 2c 20 79 63 2c 20 23 |%:SUBS y|c, yc, #|
|00001240| 31 3a 42 47 54 20 72 6f | 77 6c 6f 6f 70 25 0d 07 |1:BGT ro|wloop%..|
|00001250| 58 14 4c 44 52 20 52 31 | 33 2c 61 73 70 74 65 6d |X.LDR R1|3,asptem|
|00001260| 70 25 0d 07 62 13 4c 44 | 4d 46 44 20 52 31 33 21 |p%..b.LD|MFD R13!|
|00001270| 2c 7b 50 43 7d 0d 07 6c | 09 2e 6c 75 74 25 0d 07 |,{PC}..l|..lut%..|
|00001280| 76 0a 45 51 55 42 20 30 | 0d 07 80 05 5d 0d 07 8a |v.EQUB 0|....]...|
|00001290| 10 e3 20 43 4c 25 3d 31 | 20 b8 20 4d 25 0d 07 94 |.. CL%=1| . M%...|
|000012a0| 0d 5b 4f 50 54 20 6f 70 | 74 25 0d 07 9e 11 45 51 |.[OPT op|t%....EQ|
|000012b0| 55 42 20 43 4c 25 83 31 | 35 2b 31 0d 07 a8 05 5d |UB CL%.1|5+1....]|
|000012c0| 0d 07 b2 09 ed 20 43 4c | 25 0d 07 bc 0a ed 20 6f |..... CL|%..... o|
|000012d0| 70 74 25 0d 07 c6 05 e1 | 0d 07 d0 04 0d 07 da 05 |pt%.....|........|
|000012e0| 3a 0d 07 e4 0b f4 20 6d | 75 6c 31 36 0d 07 ee 65 |:..... m|ul16...e|
|000012f0| f4 20 6d 75 6c 74 69 70 | 6c 69 63 61 74 69 6f 6e |. multip|lication|
|00001300| 20 6f 66 20 61 6e 20 69 | 6e 74 65 67 65 72 20 78 | of an i|nteger x|
|00001310| 20 62 79 20 61 20 31 36 | 2d 62 69 74 20 66 69 78 | by a 16|-bit fix|
|00001320| 65 64 20 70 6f 69 6e 74 | 20 6e 75 6d 62 65 72 20 |ed point| number |
|00001330| 61 2c 20 77 69 74 68 20 | 6e 6f 20 72 65 73 74 72 |a, with |no restr|
|00001340| 69 63 74 69 6f 6e 73 20 | 6f 6e 20 78 20 6f 72 20 |ictions |on x or |
|00001350| 61 0d 07 f8 4d f4 20 6f | 74 68 65 72 20 74 68 61 |a...M. o|ther tha|
|00001360| 6e 20 74 68 61 74 20 78 | 2a 61 2f 36 35 35 33 36 |n that x|*a/65536|
|00001370| 20 6d 75 73 74 20 66 69 | 74 20 69 6e 74 6f 20 61 | must fi|t into a|
|00001380| 20 73 69 67 6e 65 64 20 | 33 32 2d 62 69 74 20 72 | signed |32-bit r|
|00001390| 65 70 72 65 73 65 6e 74 | 61 74 69 6f 6e 2e 0d 08 |epresent|ation...|
|000013a0| 02 1c f4 20 63 61 6c 63 | 75 6c 61 74 65 73 20 72 |... calc|ulates r|
|000013b0| 3d 78 2a 61 2f 36 35 35 | 33 36 0d 08 0c 31 f4 20 |=x*a/655|36...1. |
|000013c0| 49 74 20 74 61 6b 65 73 | 20 36 20 70 61 72 61 6d |It takes| 6 param|
|000013d0| 65 74 65 72 73 20 2d 20 | 61 6c 6c 20 72 65 67 69 |eters - |all regi|
|000013e0| 73 74 65 72 20 6e 61 6d | 65 73 2e 0d 08 16 05 3a |ster nam|es.....:|
|000013f0| 0d 08 20 0d f4 20 78 25 | 3a 20 20 20 78 0d 08 2a |.. .. x%|:   x..*|
|00001400| 23 f4 20 61 25 3a 20 20 | 20 61 20 2d 20 61 20 77 |#. a%:  | a - a w|
|00001410| 69 6c 6c 20 62 65 20 63 | 6f 72 72 75 70 74 65 64 |ill be c|orrupted|
|00001420| 0d 08 34 2a f4 20 72 25 | 3a 20 20 20 72 65 73 75 |..4*. r%|:   resu|
|00001430| 6c 74 20 2d 20 6d 61 79 | 20 62 65 20 74 68 65 20 |lt - may| be the |
|00001440| 73 61 6d 65 20 61 73 20 | 78 25 0d 08 3e 13 f4 20 |same as |x%..>.. |
|00001450| 75 25 3a 20 20 20 73 63 | 72 61 74 63 68 0d 08 48 |u%:   sc|ratch..H|
|00001460| 13 f4 20 76 25 3a 20 20 | 20 73 63 72 61 74 63 68 |.. v%:  | scratch|
|00001470| 0d 08 52 13 f4 20 77 25 | 3a 20 20 20 73 63 72 61 |..R.. w%|:   scra|
|00001480| 74 63 68 0d 08 5c 05 3a | 0d 08 66 1f dd 20 a4 6d |tch..\.:|..f.. .m|
|00001490| 75 6c 31 36 28 78 25 2c | 61 25 2c 72 25 2c 75 25 |ul16(x%,|a%,r%,u%|
|000014a0| 2c 76 25 2c 77 25 29 0d | 08 70 99 e7 20 28 72 25 |,v%,w%).|.p.. (r%|
|000014b0| 3d 61 25 20 84 20 72 25 | 3d 75 25 20 84 20 72 25 |=a% . r%|=u% . r%|
|000014c0| 3d 76 25 20 84 20 72 25 | 3d 77 25 20 84 20 78 25 |=v% . r%|=w% . x%|
|000014d0| 3d 61 25 20 84 20 78 25 | 3d 75 25 20 84 20 78 25 |=a% . x%|=u% . x%|
|000014e0| 3d 76 25 20 84 20 78 25 | 3d 77 25 20 84 20 61 25 |=v% . x%|=w% . a%|
|000014f0| 3d 75 25 20 84 20 61 25 | 3d 76 25 20 84 20 61 25 |=u% . a%|=v% . a%|
|00001500| 3d 77 25 20 84 20 75 25 | 3d 76 25 20 84 20 75 25 |=w% . u%|=v% . u%|
|00001510| 3d 77 25 20 84 20 76 25 | 3d 77 25 29 20 85 20 31 |=w% . v%|=w%) . 1|
|00001520| 2c 22 45 72 72 6f 72 20 | 69 6e 20 61 72 67 75 6d |,"Error |in argum|
|00001530| 65 6e 74 73 20 74 6f 20 | 46 4e 6d 75 6c 31 36 22 |ents to |FNmul16"|
|00001540| 0d 08 7a 0d 5b 4f 50 54 | 20 6f 70 74 25 0d 08 84 |..z.[OPT| opt%...|
|00001550| 1a 4d 4f 56 53 20 20 20 | 20 77 25 2c 20 61 25 2c |.MOVS   | w%, a%,|
|00001560| 20 4c 53 4c 20 23 31 0d | 08 8e 16 52 53 42 43 53 | LSL #1.|...RSBCS|
|00001570| 20 20 20 61 25 2c 20 61 | 25 2c 20 23 30 0d 08 98 |   a%, a|%, #0...|
|00001580| 12 54 45 51 20 20 20 20 | 20 78 25 2c 20 23 30 0d |.TEQ    | x%, #0.|
|00001590| 08 a2 16 52 53 42 4d 49 | 20 20 20 72 25 2c 20 78 |...RSBMI|   r%, x|
|000015a0| 25 2c 20 23 30 0d 08 ac | 05 5d 0d 08 b6 10 e7 20 |%, #0...|.]..... |
|000015b0| 72 25 20 3c 3e 20 78 25 | 20 8c 0d 08 c0 0d 5b 4f |r% <> x%| .....[O|
|000015c0| 50 54 20 6f 70 74 25 0d | 08 ca 12 4d 4f 56 50 4c |PT opt%.|...MOVPL|
|000015d0| 20 20 20 72 25 2c 20 78 | 25 0d 08 d4 4b 5d 20 20 |   r%, x|%...K]  |
|000015e0| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |        |        |
|000015f0| 20 20 20 20 3a f4 20 6e | 6f 77 20 68 61 76 65 20 |    :. n|ow have |
|00001600| 43 20 62 69 74 20 73 65 | 74 20 69 66 66 20 61 3c |C bit se|t iff a<|
|00001610| 30 2c 20 4e 20 62 69 74 | 20 73 65 74 20 69 66 66 |0, N bit| set iff|
|00001620| 20 78 3c 30 0d 08 de 05 | cd 0d 08 e8 0d 5b 4f 50 | x<0....|.....[OP|
|00001630| 54 20 6f 70 74 25 0d 08 | f2 1b 4d 4f 56 20 20 20 |T opt%..|..MOV   |
|00001640| 20 20 77 25 2c 20 70 63 | 2c 20 4c 53 52 20 23 33 |  w%, pc|, LSR #3|
|00001650| 31 0d 08 fc 54 4d 4f 56 | 20 20 20 20 20 77 25 2c |1...TMOV|     w%,|
|00001660| 20 77 25 2c 20 4c 53 4c | 20 23 32 38 20 3b 67 65 | w%, LSL| #28 ;ge|
|00001670| 74 20 77 3d 28 32 5e 32 | 38 29 2a 4e 20 7b 4e 20 |t w=(2^2|8)*N {N |
|00001680| 69 73 20 62 33 31 2c 20 | 56 20 69 73 20 62 32 38 |is b31, |V is b28|
|00001690| 2c 20 43 20 69 73 20 62 | 32 39 20 69 6e 20 70 63 |, C is b|29 in pc|
|000016a0| 2f 70 73 72 7d 0d 09 06 | 61 54 45 51 50 20 20 20 |/psr}...|aTEQP   |
|000016b0| 20 77 25 2c 20 70 63 2c | 20 4c 53 52 20 23 31 20 | w%, pc,| LSR #1 |
|000016c0| 20 3b 82 20 77 20 69 6e | 74 6f 20 70 63 2f 70 73 | ;. w in|to pc/ps|
|000016d0| 72 20 7b 69 65 20 4e 20 | 82 20 43 20 69 73 20 70 |r {ie N |. C is p|
|000016e0| 75 74 20 69 6e 74 6f 20 | 56 7d 20 20 2d 20 74 68 |ut into |V}  - th|
|000016f0| 69 73 20 69 73 20 61 20 | 77 61 79 20 6f 66 20 73 |is is a |way of s|
|00001700| 74 6f 72 69 6e 67 0d 09 | 10 52 20 20 20 20 20 20 |toring..|.R      |
|00001710| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |        |        |
|00001720| 20 20 3b 73 69 67 6e 20 | 6f 66 20 72 65 73 75 6c |  ;sign |of resul|
|00001730| 74 20 69 6e 20 6f 76 65 | 72 66 6c 6f 77 20 66 6c |t in ove|rflow fl|
|00001740| 61 67 2c 20 73 61 76 69 | 6e 67 20 6f 6e 20 61 20 |ag, savi|ng on a |
|00001750| 72 65 67 69 73 74 65 72 | 0d 09 1a 1b 4d 4f 56 20 |register|....MOV |
|00001760| 20 20 20 20 77 25 2c 20 | 72 25 2c 20 4c 53 52 20 |    w%, |r%, LSR |
|00001770| 23 31 36 0d 09 24 1f 42 | 49 43 20 20 20 20 20 72 |#16..$.B|IC     r|
|00001780| 25 2c 20 72 25 2c 20 77 | 25 2c 20 4c 53 4c 20 23 |%, r%, w|%, LSL #|
|00001790| 31 36 0d 09 2e 1b 4d 4f | 56 20 20 20 20 20 76 25 |16....MO|V     v%|
|000017a0| 2c 20 61 25 2c 20 4c 53 | 52 20 23 31 36 0d 09 38 |, a%, LS|R #16..8|
|000017b0| 1f 42 49 43 20 20 20 20 | 20 61 25 2c 20 61 25 2c |.BIC    | a%, a%,|
|000017c0| 20 76 25 2c 20 4c 53 4c | 20 23 31 36 0d 09 42 16 | v%, LSL| #16..B.|
|000017d0| 4d 55 4c 20 20 20 20 20 | 75 25 2c 20 61 25 2c 20 |MUL     |u%, a%, |
|000017e0| 72 25 0d 09 4c 68 54 53 | 54 20 20 20 20 20 75 25 |r%..LhTS|T     u%|
|000017f0| 2c 20 23 31 3c 3c 31 35 | 20 20 20 20 20 20 3b 6e |, #1<<15|      ;n|
|00001800| 6f 74 69 63 65 20 74 68 | 69 73 20 69 73 20 74 68 |otice th|is is th|
|00001810| 65 20 6f 6e 6c 79 20 6f | 70 65 72 61 74 69 6f 6e |e only o|peration|
|00001820| 20 61 6c 74 65 72 69 6e | 67 20 70 73 72 20 26 20 | alterin|g psr & |
|00001830| 74 68 61 74 20 69 74 20 | 77 69 6c 6c 20 6e 6f 74 |that it |will not|
|00001840| 20 63 6f 72 72 75 70 74 | 20 56 0d 09 56 60 20 20 | corrupt| V..V`  |
|00001850| 20 20 20 20 20 20 20 20 | 20 20 20 20 20 20 20 20 |        |        |
|00001860| 20 20 20 20 20 20 3b 6e | 6f 74 65 20 69 74 20 77 |      ;n|ote it w|
|00001870| 69 6c 6c 20 63 6f 72 72 | 75 70 74 20 43 2c 20 61 |ill corr|upt C, a|
|00001880| 73 20 69 6d 6d 65 64 69 | 61 74 65 20 6f 70 65 72 |s immedi|ate oper|
|00001890| 61 6e 64 20 33 32 37 36 | 38 20 72 65 71 75 69 72 |and 3276|8 requir|
|000018a0| 65 73 20 61 20 73 68 69 | 66 74 0d 09 60 1b 4d 4f |es a shi|ft..`.MO|
|000018b0| 56 20 20 20 20 20 75 25 | 2c 20 75 25 2c 20 4c 53 |V     u%|, u%, LS|
|000018c0| 52 20 23 31 36 0d 09 6a | 16 41 44 44 4e 45 20 20 |R #16..j|.ADDNE  |
|000018d0| 20 75 25 2c 20 75 25 2c | 20 23 31 0d 09 74 1a 4d | u%, u%,| #1..t.M|
|000018e0| 4c 41 20 20 20 20 20 75 | 25 2c 20 76 25 2c 20 72 |LA     u|%, v%, r|
|000018f0| 25 2c 20 75 25 0d 09 7e | 1a 4d 4c 41 20 20 20 20 |%, u%..~|.MLA    |
|00001900| 20 75 25 2c 20 61 25 2c | 20 77 25 2c 20 75 25 0d | u%, a%,| w%, u%.|
|00001910| 09 88 16 4d 55 4c 20 20 | 20 20 20 72 25 2c 20 76 |...MUL  |   r%, v|
|00001920| 25 2c 20 77 25 0d 09 92 | 1f 41 44 44 20 20 20 20 |%, w%...|.ADD    |
|00001930| 20 72 25 2c 20 75 25 2c | 20 72 25 2c 20 4c 53 4c | r%, u%,| r%, LSL|
|00001940| 20 23 31 36 0d 09 9c 16 | 52 53 42 56 53 20 20 20 | #16....|RSBVS   |
|00001950| 72 25 2c 20 72 25 2c 20 | 23 30 0d 09 a6 05 5d 0d |r%, r%, |#0....].|
|00001960| 09 b0 06 3d 30 0d 09 ba | 05 3a 0d 09 c4 0b f4 20 |...=0...|.:..... |
|00001970| 73 71 75 31 36 0d 09 ce | 5a f4 20 6d 75 6c 74 69 |squ16...|Z. multi|
|00001980| 70 6c 69 63 61 74 69 6f | 6e 20 6f 66 20 61 20 31 |plicatio|n of a 1|
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+--------+-------------------------+-------------------------+--------+--------+