59 lines
1.2 KiB
NASM
59 lines
1.2 KiB
NASM
cryptocmdunROT: .db "ROT", 0
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cryptocmdunROTm: .db "ROT: Cypher, rotates the alphabet and Decodes a string", 0
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cryptocmdunROTu: .db "DECRYPT ROT <shift#>", 0
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cryptocmdunROTf:
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cryptocmdunROTfArg1:
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ld hl, FshCmdArgFlags
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bit 3, (hl)
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jr nz, cryptocmdunROTfArg2
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bit 2, (hl)
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jr z, cryptocmdunROTfArg1Get
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ld hl, ErrUsageo
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call ErrSet
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call ErrCatch
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cryptocmdunROTfArg1Get:
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ld hl, cryptocmdunROTfDShift
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call printprompt
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ld hl, FshCmdArg1
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ld de, 3
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call inputnumstr
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call strtow
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ld de, FshCmdArg1
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ex de, hl
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ld (hl), e
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call _NewLine
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cryptocmdunROTfArg2:
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ld hl, FshCmdArg2
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ld de, FshScratch
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call strcpy
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ld hl, FshCmdArgFlags
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bit 4, (hl)
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jr z, cryptocmdunROTfArg2Get
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bit 5, (hl)
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jr z, cryptocmdunROTfExe
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ld hl, ErrUsageo
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call ErrSet
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call ErrCatch
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cryptocmdunROTfArg2Get:
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ld hl, cryptocmdunROTfDMessage
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call printprompt
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ld hl, FshScratch
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ld de, FshScratchSize - 4
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call inputcharstr
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call _NewLine
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cryptocmdunROTfExe:
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ld hl, FshCmdArg1
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ld a, (hl)
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ld hl, FshScratch
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call rotletdecrypt
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push hl
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ld hl, cryptocmdunROTfDResult
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call _PutS
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pop hl
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call _PutS
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call _NewLine
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jp Fin
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cryptocmdunROTfDShift: .db "Shift= ", 0
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cryptocmdunROTfDMessage: .db "CypherText= ", 0
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cryptocmdunROTfDResult: .db "Result: ", 0 |