TRUE     =     $00        ; Lots of code assumes this is $00
                          ; so it can branch with BEQ, so
                          ; don't change it either!
FALSE    =     $01

;-------------------------------
;Standard Delivery table indexes
;-------------------------------

ID_DOS33p =    $00
ID_DOS32  =    $01
ID_DOS32LO =   $02

; Zero-page addresses we use for variables
nibsrcindex =  $EC        ; byte
nibdestindex = $ED        ; byte
prbuf    =     $EE        ; word
unform   =     $F0        ; word
nibcount =     $F2        ; byte
modtmp   =     $F3        ; byte
modsrc   =     $F4        ; word
moddest  =     $F6        ; word
cmp1     =     $F8        ; word
cmp2     =     $FA        ; word
counter  =     $FC        ; byte
tmp      =     $FC        ; byte
iunit    =     $FC        ; byte
tmpa     =     $FC        ; byte
tmpx     =     $FD        ; byte
tmpy     =     $FE        ; byte
flag     =     $FF        ; byte

; Application constants (not zero addresses)
!ifdef RELBASE {
!set VERBOSE = $00        ; override for make script
} else {
RELBASE  =     $2000      ; dummy assignment for first build
                          ; to allow calculation of proper value
}
LOWPOINT =     $4300      ; lowest available address for code
BASEPAGE =     $10        ; Special Delivery tracer assumes
                          ; this is $10, so don't change it!

;-------------------------------
; globally-accessible variables
; in fixed position to allow
; compressed code to work
;-------------------------------

APIEND                        = $B600
gMode                         = APIEND-$01                        ; byte
gPatchCount                   = gMode-$01                         ; byte
gTriedUniv                    = gPatchCount-$01                   ; byte
gSaidWriting                  = gTriedUniv-$01                    ; byte
gChangedPrefs                 = gSaidWriting-$01                  ; byte
gLastTrack                    = gChangedPrefs-$01                 ; byte
gDiskVolumeNumber             = gLastTrack-$01                    ; byte
;FIRSTFILTER ; add new gIs* below this line
gIsDOS32                      = gDiskVolumeNumber-$01             ; byte
gIsBoot0                      = gIsDOS32-$01                      ; byte
gIsBoot1                      = gIsBoot0-$01                      ; byte
gIsMaster                     = gIsBoot1-$01                      ; byte
gIsRWTS                       = gIsMaster-$01                     ; byte
gCapturedDiskVolumeNumber     = gIsRWTS-$01                       ; byte
gIsProDOS                     = gCapturedDiskVolumeNumber-$01     ; byte
gIsDinkeyDOS                  = gIsProDOS-$01                     ; byte
gIsPascal                     = gIsDinkeyDOS-$01                  ; byte
gIsProtDOS                    = gIsPascal-$01                     ; byte
gIsDavidDOS                   = gIsProtDOS-$01                    ; byte
gIsEA                         = gIsDavidDOS-$01                   ; byte
gPossibleGamco                = gIsEA-$01                         ; byte
gIsOptimum                    = gPossibleGamco-$01                ; byte
gIsMECCFastloader             = gIsOptimum-$01                    ; byte
gIsMECC1                      = gIsMECCFastloader-$01             ; byte
gIsMECC2                      = gIsMECC1-$01                      ; byte
gIsMECC3                      = gIsMECC2-$01                      ; byte
gIsMECC4                      = gIsMECC3-$01                      ; byte
gPossibleD5D5F7               = gIsMECC4-$01                      ; byte
gIs8b3                        = gPossibleD5D5F7-$01               ; byte
gIsMilliken1                  = gIs8b3-$01                        ; byte
gAdventureInternational       = gIsMilliken1-$01                  ; byte
gIsLaureate                   = gAdventureInternational-$01       ; byte
gIsDatasoft                   = gIsLaureate-$01                   ; byte
gIsSierra                     = gIsDatasoft-$01                   ; byte
gIsSierra13                   = gIsSierra-$01                     ; byte
gIsF7F6                       = gIsSierra13-$01                   ; byte
gIsTrillium                   = gIsF7F6-$01                       ; byte
gForceDiskVol                 = gIsTrillium-$01                   ; byte
;LASTFILTER ; add new gIs* above this line

gOnAClearDayYouCanReadForever = gForceDiskVol-$01                 ; byte
gUsingRAMDisk                 = gOnAClearDayYouCanReadForever-$01 ; byte
gRAMDiskRef                   = gUsingRAMDisk-$01                 ; byte
gDisplayBytes                 = gRAMDiskRef-$0A                   ; 10 bytes
jcompare                      = gDisplayBytes-$03                 ; 3-byte
jmodify                       = jcompare-$03                      ; 3-byte
jPrintByID                    = jmodify-$03                       ; 3-byte
jSearchTrack                  = jPrintByID-$03                    ; 3-byte
jCallRWTS                     = jSearchTrack-$03                  ; 3-byte
jCopyMemory                   = jCallRWTS-$03                     ; 3-byte
jCopyUniversalAnywhere        = jCopyMemory-$03                   ; 3-byte
jConstructStandardDelivery    = jCopyUniversalAnywhere-$03        ; 3-byte
gNIBTableFF                   = jConstructStandardDelivery-1      ; 1 byte
gNIBTable                     = gNIBTableFF-$FF                   ; accessed by +$80
gNIBTableBase                 = gNIBTableFF-$7F                   ; 127 bytes

!ifdef MODULE {
compare                   = jcompare
modify                    = jmodify
PrintByID                 = jPrintByID
SearchTrack               = jSearchTrack
CallRWTS                  = jCallRWTS
CopyMemory                = jCopyMemory
CopyUniversalAnywhere     = jCopyUniversalAnywhere
ConstructStandardDelivery = jConstructStandardDelivery
}

!ifdef VERBOSE {
  !if VERBOSE=1 {
!warn "gMode=",gMode
!warn "gPatchCount=",gPatchCount
!warn "gTriedUniv=",gTriedUniv
!warn "gSaidWriting=",gSaidWriting
!warn "gChangedPrefs=",gChangedPrefs
!warn "gLastTrack=",gLastTrack
!warn "gIsDOS32=",gIsDOS32
!warn "gIsBoot0=",gIsBoot0
!warn "gIsBoot1=",gIsBoot1
!warn "gIsMaster=",gIsMaster
!warn "gIsRWTS=",gIsRWTS
!warn "gCapturedDiskVolumeNumber=",gCapturedDiskVolumeNumber
!warn "gIsProDOS=",gIsProDOS
!warn "gIsDinkeyDOS=",gIsDinkeyDOS
!warn "gIsPascal=",gIsPascal
!warn "gIsProtDOS=",gIsProtDOS
!warn "gIsDavidDOS=",gIsDavidDOS
!warn "gIsEA=",gIsEA
!warn "gPossibleGamco=",gPossibleGamco
!warn "gIsOptimum=",gIsOptimum
!warn "gIsMECCFastloader=",gIsMECCFastloader
!warn "gIsMECC1=",gIsMECC1
!warn "gIsMECC2=",gIsMECC2
!warn "gIsMECC3=",gIsMECC3
!warn "gIsMECC4=",gIsMECC4
!warn "gPossibleD5D5F7=",gPossibleD5D5F7
!warn "gIs8b3=",gIs8b3
!warn "gIsMilliken1=",gIsMilliken1
!warn "gAdventureInternational=",gAdventureInternational
!warn "gIsLaureate=",gIsLaureate
!warn "gIsDatasoft=",gIsDatasoft
!warn "gIsSierra=",gIsSierra
!warn "gIsSierra13=",gIsSierra13
!warn "gIsF7F6=",gIsF7F6
!warn "gIsTrillium=",gIsTrillium
!warn "gForceDiskVol=",gIsForceDiskVol
!warn "gOnAClearDayYouCanReadForever=",gOnAClearDayYouCanReadForever
!warn "gUsingRAMDisk=",gUsingRAMDisk
!warn "gRAMDiskRef=",gRAMDiskRef
!warn "gDisplayBytes=",gDisplayBytes
!warn "jcompare=",jcompare
!warn "jmodify=",jmodify
!warn "jPrintByID=",jPrintByID
!warn "jSearchTrack=",jSearchTrack
!warn "jCallRWTS=",jCallRWTS
!warn "jCopyMemory=",jCopyMemory
!warn "jCopyUniversalAnywhere=",jCopyUniversalAnywhere
!warn "jConstructStandardDelivery=",jConstructStandardDelivery
!warn "gNIBTableFF=",gNIBTableFF
!warn "gNIBTable=",gNIBTable
!warn "gNIBTableBase=",gNIBTableBase
  }
}