\ hand is the hand type. \ equiv is the equivalence class rank. \ later we convert equivalence class rank to hand and qualifier. : fivecardeval ( a b c d e -- equiv ) cells cardlookuptable + @ >r cells cardlookuptable + @ >r cells cardlookuptable + @ >r cells cardlookuptable + @ >r cells cardlookuptable + @ r> r> r> r> ( a' b' c' d' e' ) (fivecardeval) \ the real work gets done here. ; :noname ( a b c d e -- equiv ) fivecards! 1 5 0 do i cells pad + @ \$FF and * loop dup rh ! \ look for straights. store the straight qualifier in rf. 0 rf ! 11 0 do dup i cells primerankstraights + @ = if i 1+ rf ! leave then loop drop \ look for flushes. store the flush qualifier in rg. \$F000 \ all suit bits 5 0 do i cells pad + @ and loop rg ! rf @ 0<> if \ straight 5854 rf @ 1- + rg @ if \ straight flush! [ 7462 5854 - ] literal + then exit then \ first, how many different ranks do we have? \ five: bupkis or flush (we've taken care of straights) \ less is a pairing type hand, specifically: \ four: one pair. \ three: trips or two pair. \ two: quads or a full house. \ the last three are combined in one gigantic table, so we \ only split between flush/bupkis and pairing hands. 0 5 0 do pad i cells + @ 16 rshift or loop countbits 5 = if rh @ primeranknpns primeranknpnslength binaryranksearch rg @ if [ 5864 1 - ] literal + then else rh @ primerankpairinghands primerankpairinghandslength binaryranksearch then nip nip \ no idea where these are coming from. ; is (fivecardeval)