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refactor textrank to use more zero page
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4am
parent
340d728ff0
commit
d6358262cb
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@ -9,7 +9,7 @@
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; D000..E5F4 - persistent data structures (per-game cheat categories,
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; gGlobalPrefsStore, gGamesListStore)
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; ...unused...
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; EC56..FFF9 - main program code
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; EC79..FFF9 - main program code
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; FFFA..FFFF - NMI, reset, IRQ vectors
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;
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; LC RAM BANK 2
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@ -56,6 +56,14 @@ ROM_NORMAL = $FE84 ; NORMAL text (instead of INVERSE or FLASH)
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ROM_IN0 = $FE89 ; SETKBD
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ROM_PR0 = $FE93 ; SETVID
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; zero page during init ONLY
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zpMachineStatus= $F0 ; bit 7 = 1 if machine has joystick
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; bit 6 = 1 if machine has 128K
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; bit 5 = 1 if machine has a VidHD card
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; bit 4 = 1 if machine is a IIgs
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; only used during init, then copied to MachineStatus in LC RAM
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zpCharMask = $F1 ; only uesd during init, then clobbered
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; zero page
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PARAM = $00 ; word (used by PARAMS_ON_STACK macro, so basically everywhere)
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PTR = $02 ; word
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@ -65,16 +73,27 @@ SAVE = $08 ; word
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KEYLEN = $0A ; byte
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VALUELEN = $0B ; byte
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MAX = $0C ; byte
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HTAB = $24
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VTAB = $25
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HTAB = $24 ; byte
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VTAB = $25 ; byte
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RNDSEED = $4E ; word
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; textrank
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tmpx = $E7 ; byte
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remainder = $E8 ; word
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num1 = $EA ; word
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num2 = $EC ; byte
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Timeout = $ED ; 3 bytes (used by SearchMode)
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zpMachineStatus= $F0 ; bit 7 = 1 if machine has joystick
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; bit 6 = 1 if machine has 128K
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; bit 5 = 1 if machine has a VidHD card
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; bit 4 = 1 if machine is a IIgs
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; only used during init, then copied to MachineStatus in LC RAM
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zpCharMask = $F1 ; only uesd during init, then clobbered
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zpword = $F0 ; word
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zpstring = $F2 ; word
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runningscore= $F4 ; word
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startat = $F6 ; byte
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i = $F7 ; byte
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tmp = $F8 ; byte
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gamelength= $F9 ; byte
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firstletter= $FA ; byte
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MatchCount = $FB ; byte
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BestMatchScore = $FC ; byte
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BestMatchIndex = $FD ; byte
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; $FE ; used by ParseGamesList
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; $FF ; used by ParseGamesList
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@ -15,26 +15,11 @@
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; - BestMatchScore ; [byte] raw ranking score (0-100) of current best match (updated during TextRankCallback)
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; - BestMatchIndex ; [byte] index in gGamesListStore of current best match (updated during TextRankCallback)
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zpword = $F0 ; word
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zpstring = $F2 ; word
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runningscore= $F4 ; word
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startat = $F6 ; byte
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i = $F7 ; byte
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tmp = $F8 ; byte
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gamelength= $F9 ; byte
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firstletter= $FA ; byte
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MaxInputLength = 26
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InputLength
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!byte 0
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InputBuffer
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!text " "
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MatchCount
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!byte 0
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BestMatchScore
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!byte 0
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BestMatchIndex
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!byte 0
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;------------------------------------------------------------------------------
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; ResetTextRank
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@ -65,7 +50,7 @@ ResetTextRank
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; was the best match so far)
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;------------------------------------------------------------------------------
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TextRankCallback
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stx @tmpx ; X = OKVS index of this title
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stx tmpx ; X = OKVS index of this title
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+STAY zpstring ; A/Y = address of this title
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+LDADDR InputLength
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+STAY zpword
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@ -92,8 +77,7 @@ TextRankCallback
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iny
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bcc --
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++ rts ; no match :(
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+
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ldx #80
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+ ldx #80
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cpy startat
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beq +
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ldx #10
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@ -121,9 +105,7 @@ TextRankCallback
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cmp gamelength
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bcc -
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rts ; no match :(
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+
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lda runningscore
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+ lda runningscore
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ldx runningscore+1
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ldy gamelength
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jsr @div
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@ -147,43 +129,35 @@ TextRankCallback
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cmp #85
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bcs +
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adc #15
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+
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cmp BestMatchScore
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+ cmp BestMatchScore
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bcc +
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beq +
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sta BestMatchScore
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ldx @tmpx
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ldx tmpx
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stx BestMatchIndex
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inc MatchCount
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+
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rts
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+ rts
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@div
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sta @num1
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stx @num1+1
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sty @num2
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sta num1
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stx num1+1
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sty num2
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lda #0
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sta @rem
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sta @rem+1
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sta remainder
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sta remainder+1
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ldx #16
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- asl @num1
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rol @num1+1
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rol @rem
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rol @rem+1
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lda @rem
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- asl num1
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rol num1+1
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rol remainder
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rol remainder+1
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lda remainder
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sec
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sbc @num2
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sbc num2
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bcc +
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sta @rem
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dec @rem+1
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inc @num1
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sta remainder
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dec remainder+1
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inc num1
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+ dex
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bne -
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lda @num1
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lda num1
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rts
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@rem !word 0
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@num1 !word 0
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@num2 !byte 0
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@tmpx !byte $FD
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