626 lines
25 KiB
ArmAsm
626 lines
25 KiB
ArmAsm
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*** MENU LIBRARY
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sizeof_ItemStruct = #6
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*MyItem hex 19,07 ;x,y positions
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* db MenuOption_List ;type of input (see Menu_Types)
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* db 11 ;max size in bytes
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* da MyItemOptions ;params definition & storage
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** MENU USES ZP $F0-$F1 as ptr to MenuDefs
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Menu_InitMenu sta $F0
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stx $F1
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rts
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Menu_PrevItem dec Menu_ItemSelected
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bpl :noflip
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lda #MainMenuItems
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dec
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sta Menu_ItemSelected
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:noflip rts
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Menu_NextItem inc Menu_ItemSelected
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lda Menu_ItemSelected
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cmp #MainMenuItems
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bcc :noflip
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lda #0
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sta Menu_ItemSelected
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:noflip rts
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Menu_DrawOptions
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stz _menuOptionPtr
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:drawOption
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ldy _menuOptionPtr
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lda ($F0),y
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beq :menuDone
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tax
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iny
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lda ($F0),y
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tay
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jsr GoXY
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ldy _menuOptionPtr
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iny
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iny
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lda ($F0),y
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asl ; *2 for table index
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tax
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pea #:nextMenuItem-1 ; push this address to return from jmp tbl, yay 65816
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jmp (Menu_DrawRoutinesTbl,x)
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:nextMenuItem lda _menuOptionPtr
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clc
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adc #sizeof_ItemStruct ;len of "struct"
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sta _menuOptionPtr
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bra :drawOption
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:menuDone rts
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Menu_DrawRoutinesTbl da Menu_DrawOptionHex ;char
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da Menu_DrawOptionHex
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da Menu_DrawOptionAction
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da Menu_DrawOptionList
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da Menu_DrawOptionBool
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da Menu_DrawOptionBin
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da Menu_DrawOptionInt
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Menu_DrawOptionBin iny
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lda ($F0),y ;get len
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sta _menuOptionLen
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iny
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lda ($F0),y ;get da
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sta $F2 ;storez
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iny
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lda ($F0),y ;get da
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sta $F3 ;storez
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ldy #0
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:prloop lda ($F2),y
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; print 4 bits
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phy ; for safety. might not be needed
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asl
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jsr PRCARRYBIT
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asl
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jsr PRCARRYBIT
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asl
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jsr PRCARRYBIT
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asl
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jsr PRCARRYBIT
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pha
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lda #" "
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jsr COUT
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pla
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asl
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jsr PRCARRYBIT
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asl
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jsr PRCARRYBIT
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asl
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jsr PRCARRYBIT
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asl
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jsr PRCARRYBIT
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ply
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iny
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cpy _menuOptionLen
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beq :done
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lda #" " ;print space between octets of bits
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jsr COUT
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bra :prloop
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:done rts
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PRCARRYBIT pha
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bcs :is1
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:is0 lda #"0"
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bra :out
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:is1 lda #"1"
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:out jsr COUT
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pla
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rts
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Menu_DrawOptionBool iny
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lda ($F0),y ;get len
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sta _menuOptionLen
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iny
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lda ($F0),y ;get da
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sta $F2 ;storez
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iny
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lda ($F0),y ;get da
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sta $F3 ;storez
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ldy #0
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:prloop lda ($F2),y ;get our bool value
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bne :on
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:off lda #_menuBoolOffStr
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ldy #>_menuBoolOffStr
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jmp PrintString ;auto-rts
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:on lda #_menuBoolOnStr
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ldy #>_menuBoolOnStr
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jmp PrintString ;auto-rts
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_menuBoolOnStr asc " on",00
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_menuBoolOffStr asc "off",00
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* @todo make this more configurable
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Menu_DrawOptionInt rts
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Menu_DrawOptionHex iny
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lda ($F0),y ;get len
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sta _menuOptionLen
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iny
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lda ($F0),y ;get da
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sta $F2 ;storez
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iny
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lda ($F0),y ;get da
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sta $F3 ;storez
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ldy #0
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:prloop lda ($F2),y
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jsr PRBYTE
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iny
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cpy _menuOptionLen
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bne :prloop
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rts
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Menu_DrawOptionAction iny
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iny
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lda ($F0),y
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tax
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iny
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lda ($F0),y
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tay
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txa
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jsr PrintString
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rts
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Menu_DrawOptionList iny ;point to da
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iny
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lda ($F0),y
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sta $F2
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iny
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lda ($F0),y
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sta $F3 ;now ($2) points to item list structure
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ldy #0
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lda ($F2),y ;selected index
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asl
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inc
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inc ;add 2 to reach table of addresses
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tay
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lda ($F2),y
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pha
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iny
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lda ($F2),y
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tay
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pla
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jsr PrintString
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rts
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_menuOptionLen dw 0
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_menuOptionPtr dw 00
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Menu_UndrawSelectedAll
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stz _stash
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:undrawLoop ldy _stash ;struct ptr
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lda ($F0),y
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beq :stop
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dec ;move left 1 space
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sta _menuLBracketX
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iny
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lda ($F0),y ;next param, y value
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sta _menuSelectedY
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iny
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lda ($F0),y ;next param, type
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tax
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iny
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lda ($F0),y ;next param, size (bytes)
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jsr Menu_GetItemScreenWidth ;get the real width
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inc ;add 1
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clc
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adc _menuLBracketX ;add the left bracket position
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sta _menuRBracketX ;and we should be in the right place
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jsr Menu_UndrawBrackets
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lda _stash
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clc
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adc #sizeof_ItemStruct
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sta _stash
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bra :undrawLoop
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:stop
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rts
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* max 256 byte struct table unless i go 16 bit
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Menu_GetSelectedStructPtr lda #0
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ldx Menu_ItemSelected
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:check beq :foundIdx
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clc
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adc #sizeof_ItemStruct ;"struct" size
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dex
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bra :check
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:foundIdx rts
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** RETURN THE SCREEN WIDTH FOR VARIOUS INPUT TYPES
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* X= ItemType A= SizeInBytes
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Menu_GetItemScreenWidth
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cpx MenuOption_Char
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bne :notChar
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rts ;size already correct for char
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:notChar cpx MenuOption_Hex
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bne :notHex
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asl ;*2 for printing 2 char per byte
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rts
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:notHex cpx MenuOption_Bin
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bne :notBin
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asl ; logic for binary is a little more detailed
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asl ; because i add spacing for readability
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asl ;*8 for byte
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inc ; add a space so "0000 0000"
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cmp #9
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bne :bigger
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rts
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:bigger inc
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inc ; add 2 more spaces.
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rts
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:notBin cpx MenuOption_Int
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bne :notInt
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rts ;input width... internally maxint = FFFF
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:notInt cpx MenuOption_Action
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bne :notAction
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rts ;should be defined in param from string length
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:notAction cpx MenuOption_List
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bne :notList
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rts ;should be defined in param from string length
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:notList cpx MenuOption_Bool
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bne :notBool
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lda #3 ;@todo: we'll use "off"/"on" for now.. revisit?
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rts ;hmm.. undefined? @TODO!!!
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:notBool
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:wtf
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rts
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Menu_HighlightSelected jsr Menu_GetSelectedStructPtr ;get ptr to selected item
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tay
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lda ($F0),y ;start parsing the struct with x value
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dec ;move left 1 space
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sta _menuLBracketX
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iny
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lda ($F0),y ;next param, y value
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sta _menuSelectedY
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iny
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lda ($F0),y ;next param, type
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tax
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iny
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lda ($F0),y ;next param, size (bytes)
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jsr Menu_GetItemScreenWidth ;get the real width
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inc ;add 1
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clc
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adc _menuLBracketX ;add the left bracket position
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sta _menuRBracketX ;and we should be in the right place
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jsr Menu_DrawBrackets
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rts
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Menu_UndrawBrackets ldx _menuRBracketX
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ldy _menuSelectedY
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jsr GoXY
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lda #"]"
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jsr COUT
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ldx _menuLBracketX
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ldy _menuSelectedY
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jsr GoXY
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lda #"["
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jsr COUT
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rts
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Menu_DrawBrackets ldx _menuRBracketX
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ldy _menuSelectedY
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jsr GoXY
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lda #">"
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jsr COUT
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ldx _menuLBracketX
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ldy _menuSelectedY
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jsr GoXY
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lda #"<"
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jsr COUT
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rts
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_menuLBracketX db 0
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_menuRBracketX db 0
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_menuSelectedX1 db 0
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_menuSelectedY db 0
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* THESE ARE ALL OF THE MENU INPUT TYPES
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Menu_Types
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Menu_TypeTable da Menu_TypeChar,Menu_TypeHex,Menu_TypeAction,Menu_TypeList,Menu_TypeBool,Menu_TypeBin,Menu_TypeInt
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MenuOption_Char equ #0
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MenuOption_Hex equ #1
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MenuOption_Bin equ #5
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MenuOption_Int equ #6
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MenuOption_Action equ #2
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MenuOption_List equ #3
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MenuOption_Bool equ #4
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* $0 = ptr->MenuDefs
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Menu_HandleSelection
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lda #0
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ldx Menu_ItemSelected ;odd choice to load again, but preps flags (z) how i likes it
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:check beq :foundIdx ;<- a=struct offset
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clc
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adc #sizeof_ItemStruct ;"struct" size
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dex
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bra :check
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:foundIdx pha
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tay
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iny ;\
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iny ; \
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lda ($F0),y ; > get MenuOption_Type, set up for jmp table
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asl ; /
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tax ;/
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pla
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jmp (Menu_TypeTable,x)
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* A= struct index for all of these.
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Menu_TypeChar rts
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Menu_TypeBool tay
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iny ;skip x
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iny ;skip y
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iny ;skip length
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iny
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lda ($F0),y
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sta $F2
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iny
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lda ($F0),y
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sta $F3
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lda #1
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eor ($f2)
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sta ($f2)
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rts
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Menu_TypeBin rts
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Menu_TypeInt rts
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Menu_TypeHex pha
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tay
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lda ($F0),y
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tax
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iny
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lda ($F0),y
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tay
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jsr GoXY
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pla
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clc
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adc #3 ; ->memory size
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tay
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lda ($F0),y
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asl ;*2
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pha
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iny
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lda ($F0),y
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pha
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iny
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lda ($F0),y
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tay
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plx
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pla
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jsr GetHex
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rts
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Menu_TypeAction iny ;skip len byte
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iny
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lda ($F0),y
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sta :ACTION+1
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iny
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lda ($F0),y
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sta :ACTION+2
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lda :ACTION+1
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sec
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sbc #2
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sta :ACTION+1
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bcs :copy
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dec :ACTION+2
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:copy ldx #0 ;this is all so bad - maybe rts is better
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:ACTION lda $ffff,x
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sta :JSR+1,x
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inx
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cpx #2
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bcc :ACTION
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:JSR jsr $ffff
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rts
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* Selecting from a List
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* look for key
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* update cursor
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* if up then prev item \_ draw menu options
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* if down then next item /
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* if enter, done - when it gets back to menu loop, we should handle special logic there
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Menu_TypeList
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rts
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*** INPUT LIBRARY FOR MENU
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* Pass desired length in A
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GetHex
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sta _gethex_maxlen
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stx _gethex_resultptr
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sty _gethex_resultptr+1
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stz _gethex_current
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lda $24
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sta _gethex_screenx ;stash x. gets clobbered by RDKEY
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:input jsr RDKEY
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cmp #$9B ;esc = abort
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bne :notesc
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rts
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:notesc cmp #$FF ;del
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beq :goBack
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cmp #$88
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bne :notBack
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:goBack
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lda _gethex_current
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beq :badChar ; otherwise result = -1
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dec _gethex_current
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dec _gethex_screenx
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GOXY _gethex_screenx;$25
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bra :input
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:notBack cmp #"9"+1
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bcs :notNum ;bge > 9
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cmp #"0"
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bcc :badChar ;
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sec
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sbc #"0"
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bra :storeInput
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:notNum cmp #"a"
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bcc :notLower
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sec
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sbc #$20 ;ToUpper
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:notLower cmp #"A"
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bcc :badChar
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cmp #"F"+1
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bcs :badChar
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:gotHex
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sec
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sbc #"A"-10
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:storeInput
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pha
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jsr PRHEX
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pla
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ldy _gethex_current
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sta _gethex_buffer,y
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inc _gethex_screenx
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iny
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cpy #_gethex_internalmax
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bge :internalmax
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cpy _gethex_maxlen
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bge :passedmax
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sty _gethex_current
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bra :input
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:internalmax
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:passedmax
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lda _gethex_resultptr
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sta $0
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lda _gethex_resultptr+1
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sta $1
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ldx #0
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ldy #0
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:copyBuffer lda _gethex_buffer,x
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asl ; move to upper nibble
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asl
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asl
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asl
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sta ($0),y ; store
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inx
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lda _gethex_buffer,x
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ora ($0),y
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sta ($0),y
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iny
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inx
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cpx _gethex_maxlen
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bcc :copyBuffer
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rts
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:badChar jmp :input
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_gethex_internalmax equ 8
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_gethex_resultptr da 0000
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_gethex_maxlen db 1
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_gethex_current db 0
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_gethex_buffer ds _gethex_internalmax
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_gethex_screenx db 0
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PrHexChar jsr HexCharForByte
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HexCharForByte
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cmp #9
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bcs :alpha
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:number clc
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adc #"0"
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rts
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:alpha clc
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adc #"A"
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rts
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BINBCD16 SED ; Switch to decimal mode
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LDA #0 ; Ensure the result is clear
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STA BCD+0
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STA BCD+1
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STA BCD+2
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LDX #16 ; The number of source bits
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:CNVBIT ASL BIN+0 ; Shift out one bit
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ROL BIN+1
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LDA BCD+0 ; And add into result
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ADC BCD+0
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STA BCD+0
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LDA BCD+1 ; propagating any carry
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ADC BCD+1
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STA BCD+1
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LDA BCD+2 ; ... thru whole result
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ADC BCD+2
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STA BCD+2
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DEX ; And repeat for next bit
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BNE :CNVBIT
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CLD ; Back to binary
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RTS
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BIN dw $03e7
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BCD ds 3
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* 16-bit mode!!!
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BCDBIN16 clc
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xce
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rep #$30
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stz BIN
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lda BCD
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and #$000F ;get 1's
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sta BIN
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lda BCD
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and #$00F0 ;get 10's
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lsr
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lsr
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lsr
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lsr
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jsr TIMES10
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clc
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adc BIN ;add 10's back to BIN
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sta BIN
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lda BCD
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and #$0f00 ;get 100's
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xba
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jsr TIMES10
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jsr TIMES10
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clc
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adc BIN
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sta BIN
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lda BCD
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and #$f000 ;get 1000's
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xba
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lsr
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lsr
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lsr
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lsr
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jsr TIMES10
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jsr TIMES10
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jsr TIMES10
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clc
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adc BIN
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sta BIN
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sep #$30
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RTS
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* 16-bit mode!!!
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TIMES10
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sta :tensadd+1
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ldx #10 ;m*10
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:tensloop clc
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:tensadd adc #$0000 ;placeholder, gets overwritten above
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dex
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bne :tensloop
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RTS
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mx %00
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