;redcode-94 ;name SnafSort v0.5 ;author anders scholl ;contact anders@kamsc.seds.org ;NSFCWT Round 4 ;strategy A pritty generic bubble sort (i devised the basic algorithm _before_ ;strategy I knew what a bubble sort was....) ;strategy My caffinated stupor is the reason for the icky labels in the delete ;strategy common insctructions function org the_start ;-7997 mirror of hit_flag ;-7998 "safety" ; copy of l-1 ;-7999 length comparison; hit_flag fixer nop #1, #-1 ;0 fix for sort_b echo slt.b \$3991, 3992 ;1 echo of sort_b (wanna get rid of it) the_start seq.i \$-3, \$4009 ;2 find length of instructions to sort jmp \$-1, >-1 ;3 ....... sub #4000, \$-2 ;4 make 0.b length-1 mov.b \$-3, \$sort_djn ;5 put length-1 into sort_djn test_asc sne #0, \$3994 ;6 if ascending, jmp sort_b ;7 don't jump to sort_b; do add.f fixer, sort_b ;8 fix sort_b add.f fixer, echo ;9 fix echo of sort_b sort_b slt.b \$3991, \$3992 ;10 if point1.b is l/g than point2.b, jmp test_b ;11 dont jmp to test_b; do mov.i *-2, \$-14 ;12 mov point1 to safety (x) mov.i @-3, *-3 ;13 mov point2 to point1 (c) mov.i \$-16, @-4 ;14 mov safety to point2 (g) jmp snaf_end, >-16 ;15 jmp to switch end; set hit_flag test_b seq.b *sort_b, @sort_b ;16 if point1.b is equal to point2.b, jmp snaf_end ;17 don't jmp to snaf_end; do sort_a slt.a *sort_b, @sort_b ;18 test if point1.a is point2.a, jmp snaf_end ;19 don't jmp to snaf_end; do mov *-10, \$-22 ;20 mov point1 to safety (x) mov @-11, *-11 ;21 mov point2 to point1 (c) mov \$-24, @-12 ;22 mov safety to point2 (g) jmp \$1, >-24 ;23 flip up hit_flag snaf_end nop.f }sort_b, >sort_b ;24 incriment points to compare sort_djn djn sort_b, #0 ;25 length has been moved to .b her go_passp sne \$-27, \$-29 ;26 if hit_flag is hit, jmp del_chck ;27 don't go to del_checking; do mov \$-29, \$-31 ;28 fix hit_flag mov echo, sort_b ;29 fix sort_b mov.b the_start,sort_djn ;30 fix sort_djn jmp sort_b ;31 make another pass del_chck jmz.a \$400, \$3968 ;32 if 4000.a is 0, kill proggy, else jmz.b 2, \$3967 ;33 if ascending, mov.x echo, echo ;34 fix echo back to descending mov.i echo, sort_b ;35 fix sort_b mov.b the_start, t_1 ;36 fix up t_1 go mov.b t_1, t_2 ;37 part1 of delete like instructions go_on sne.i *sort_b, @sort_b ;38 mov.i \$5000, @sort_b ;39 nop >sort_b ;40 t_2 djn go_on, #0 ;41 sub.b t_1, sort_b ;42 nop }sort_b, >sort_b ;43 t_1 djn go, #0 ;44 add.a #1, echo ;45 mov.i echo, sort_b ;46 mov.b the_start, splat lala sne.i \$435, @sort_b sub.a #1, sort_b add 3, sort_b mov.i @sort_b, *sort_b splat djn lala, #0 dat 1, 1