4cade/src/prodos.path.a

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;license:MIT
;(c) 2018-9 by 4am
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;
; ProDOS - functions for constructing and passing around ProDOS pathnames
;
; Public functions
; - SetPath
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; - AddToPath
;
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;------------------------------------------------------------------------------
; SetPath/AddToPath
; append a length-prefixed string to gPathname
; SetPath will reset the path first
;
; in: A contains low byte of address of length-prefixed string to append
; Y contains high byte of address of length-prefixed string to append
; out: all registers and flags clobbered
; $02/$03 (PTR/PTR+1) clobbered
; gPathname updated with concatenated length-prefixed string
;------------------------------------------------------------------------------
SetPath
kRootDirectory=*+1
ldx #0
stx gPathname
; execution falls through here
AddToPath
+STAY PTR
ldy #0
lda (PTR),y ; length of this segment
beq @done
tay
iny
sty @max
ldx gPathname ; current pathname length
ldy #$01
- lda (PTR),y
sta gPathname+1,x
inx
iny
@max = *+1
cpy #$D1 ; SMC
bcc -
stx gPathname
@done
rts
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kHGRTitleDirectory
!byte 10
!raw "TITLE.HGR/"
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kDHGRTitleDirectory
!byte 11
!raw "TITLE.DHGR/"
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kAnimatedTitleDirectory
!byte 15
!raw "TITLE.ANIMATED/"
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kHGRActionDirectory
!byte 11
!raw "ACTION.HGR/"
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kDHGRActionDirectory
!byte 12
!raw "ACTION.DHGR/"
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kGRActionDirectory
!byte 10
!raw "ACTION.GR/"
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kSHRArtworkDirectory
!byte 12
!raw "ARTWORK.SHR/"
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kMiniAttractDirectory
!byte 8
!raw "ATTRACT/"
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kAttractModeSlideshowDirectory
!byte 3
!raw "SS/"
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kDemoDirectory
!byte 5
!raw "DEMO/"
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kGameDirectory
!byte 2
!raw "X/"
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kGameDirectoryLen = 3 ; we need this elsewhere
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kFXDirectory
!byte 3
!raw "FX/"
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kPrelaunchDirectory
!byte 10
!raw "PRELAUNCH/"
kStandardPrelaunch
!byte 8
!raw "STANDARD"
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kGlobalPrefsFilename
!byte 10
!raw "PREFS.CONF"
kAttractModeConfFile
!byte 12
!raw "ATTRACT.CONF"
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kFXConfFile
!byte 7
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!raw "FX.CONF"
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kDFXConfFile
!byte 8
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!raw "DFX.CONF"
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kCreditsFile
!byte 7
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!raw "CREDITS"
kHelpBackgroundFile
!byte 4
!raw "HELP"
kHelpTextFile
!byte 8
!raw "HELPTEXT"
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kTitleFile
!byte 5
!raw "TITLE"
kCoverFile
!byte 5
!raw "COVER"
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kCoverFadeFile
!byte 9
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!raw "COVERFADE"
kGRFizzleFile
!byte 9
!raw "GR.FIZZLE"
kSFXFizzleFile
!byte 10
!raw "SHR.FIZZLE"