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---input---
;redcode
;name Dwarf
;author A. K. Dewdney
;version 94.1
;date April 29, 1993
;strategy Bombs every fourth instruction.
ORG start ; Indicates the instruction with
; the label "start" should be the
; first to execute.
step EQU 4 ; Replaces all occurrences of "step"
; with the character "4".
target DAT.F #0, #0 ; Pointer to target instruction.
start ADD.AB #step, target ; Increments pointer by step.
MOV.AB #0, @target ; Bombs target instruction.
JMP.A start ; Same as JMP.A -2. Loops back to
; the instruction labelled "start".
END
---tokens---
';redcode' Comment.Single
'\n' Text
';name Dwarf' Comment.Single
'\n' Text
';author A. K. Dewdney' Comment.Single
'\n' Text
';version 94.1' Comment.Single
'\n' Text
';date April 29, 1993' Comment.Single
'\n' Text
';strategy Bombs every fourth instruction.' Comment.Single
'\n ' Text
'ORG' Name.Function
' ' Text
'start' Name
' ' Text
'; Indicates the instruction with' Comment.Single
'\n ' Text
'; the label "start" should be the' Comment.Single
'\n ' Text
'; first to execute.' Comment.Single
'\n' Text
'step' Name
' ' Text
'EQU' Name.Function
' ' Text
'4' Literal.Number.Integer
' ' Text
'; Replaces all occurrences of "step"' Comment.Single
'\n ' Text
'; with the character "4".' Comment.Single
'\n' Text
'target' Name
' ' Text
'DAT' Name.Function
'.' Punctuation
'F' Name.Decorator
' ' Text
'#' Operator
'0' Literal.Number.Integer
',' Punctuation
' ' Text
'#' Operator
'0' Literal.Number.Integer
' ' Text
'; Pointer to target instruction.' Comment.Single
'\n' Text
'start' Name
' ' Text
'ADD' Name.Function
'.' Punctuation
'AB' Name.Decorator
' ' Text
'#' Operator
'step' Name
',' Punctuation
' ' Text
'target' Name
' ' Text
'; Increments pointer by step.' Comment.Single
'\n ' Text
'MOV' Name.Function
'.' Punctuation
'AB' Name.Decorator
' ' Text
'#' Operator
'0' Literal.Number.Integer
',' Punctuation
' ' Text
'@' Operator
'target' Name
' ' Text
'; Bombs target instruction.' Comment.Single
'\n ' Text
'JMP' Name.Function
'.' Punctuation
'A' Name.Decorator
' ' Text
'start' Name
' ' Text
'; Same as JMP.A -2. Loops back to' Comment.Single
'\n ' Text
'; the instruction labelled "start".' Comment.Single
'\n ' Text
'END' Name.Function
'\n' Text
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