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| − | [[Category:84PCE:OS_Information]]
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| − | <pre>;--------------------------------------------
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| − | ; fdetect
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| − | ; detects appvars, prot progs, and
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| − | ; progs given a 0-terminated string
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| − | ; pointed to by ix.
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| − | ;--------------------------------------------
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| − | ; INPUTS:
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| − | ; hl->place to start searching
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| − | ; ix->string to find
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| − | ;
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| − | ; OUTPUTS:
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| − | ; hl->place stopped searching
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| − | ; de->file data after string
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| − | ; bc=file size after string
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| − | ; z flag set if found, nz if not found
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| − | ;--------------------------------------------
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| − | fdetect:
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| − | ld de,(ptemp)
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| − | or a,a
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| − | sbc hl,de
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| − | add hl,de
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| − | ld a,(hl)
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| − | jr nz,fcontinue
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| − | inc a
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| − | ret
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| − | fcontinue:
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| − | push hl
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| − | cp appvarobj
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| − | jr z,fgoodtype
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| − | cp protprogobj
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| − | jr z,fgoodtype
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| − | cp progobj
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| − | jr nz,fskip
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| − | fgoodtype:
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| − | dec hl
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| − | dec hl
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| − | dec hl
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| − | ld e, (hl)
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| − | dec hl
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| − | ld d,(hl)
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| − | dec hl
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| − | ld a,(hl)
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| − | call _SetDEUtoA
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| − | push de
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| − | pop hl
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| − | cp 0D0h
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| − | jr nc,finRAM
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| − | push ix
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| − | push de
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| − | push hl
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| − | pop ix
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| − | ld a,10
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| − | add a,(ix+9)
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| − | ld de,0
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| − | ld e,a
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| − | add hl,de
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| − | ex (sp),hl
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| − | add hl,de
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| − | pop de
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| − | ex de,hl
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| − | pop ix
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| − | finRAM:
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| − | inc de
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| − | inc de
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| − | ld bc,0
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| − | ld c,(hl)
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| − | inc hl
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| − | ld b,(hl)
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| − | inc hl ; hl -> data
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| − | push bc ; bc = size
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| − | push ix
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| − | pop bc
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| − | fchkstr:
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| − | ld a,(bc)
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| − | or a
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| − | jr z,ffound
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| − | cp (hl)
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| − | inc bc
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| − | inc de
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| − | inc hl
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| − | jr z,fchkstr
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| − | pop bc
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| − | fskip:
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| − | pop hl
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| − | call fbypassname
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| − | jr fdetect
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| − | ffound:
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| − | push bc
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| − | pop hl
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| − | push ix
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| − | pop bc
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| − | or a
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| − | sbc hl,bc
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| − | push hl
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| − | pop bc
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| − | pop hl ; size
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| − | or a
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| − | sbc hl,bc
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| − | push hl
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| − | pop bc
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| − | pop hl ; current search location
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| − | push bc
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| − | call fbypassname
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| − | pop bc
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| − | xor a
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| − | ret
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| − | fbypassname:
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| − | ld bc,-6
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| − | add hl,bc
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| − | ld b,(hl)
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| − | dec hl
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| − | fbypassnameloop:
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| − | dec hl
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| − | djnz fbypassnameloop
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| − | ret</pre>
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Latest revision as of 12:06, 26 May 2015
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