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COPY START 1000
FIRST STL RETADR
CLOOP JSUB RDREC
LDA LENGTH
COMP ZERO
JEQ ENDFIL
JSUB WRREC
J CLOOP
ENDFIL LDA EOF
STA BUFFER
LDA THREE
STA LENGTH
JSUB WRREC
LDL RETADR
RSUB
EOF BYTE C'EOF'
THREE WORD 3
ZERO WORD 0
RETADR RESW 1
LENGTH RESW 1
BUFFER RESB 4096
RDREC LDX ZERO
LDA ZERO
RLOOP TD INPUT
JEQ RLOOP
RD INPUT
COMP ZERO
JEQ EXIT
STCH BUFFER,X
TIX MAXLEN
JLT RLOOP
EXIT STX LENGTH
RSUB
INPUT BYTE X'F1'
MAXLEN WORD 4096
WRREC LDX ZERO
WLOOP TD OUTPUT
JEQ WLOOP
LDCH BUFFER,X
WD OUTPUT
TIX LENGTH
JLT WLOOP
RSUB
OUTPUT BYTE X'05'
END FIRST
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