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LOGOHELP.HLP
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1980-01-01
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LOGO HELP FILE PAGE 1
F1 = HELP
F2 = LOGO EDITOR
F3,ESC,END = QUIT LOGO
SAMPLE USAGE:
TO BOX
REPEAT 4 [ FORWARD 40 RIGHT 90 ]
END
TO BOXES
RIGHT 45
BOX
COUNT UP
COUNT IF> 8 STOP
BOXES
END
TO STAR
BOXES
COUNT ZERO
END
TYPE "STAR" AT THE "?" PROMPT
LOGO HELP FILE PAGE 2
TURTLE COMMANDS:
FORWARD (FD) N - MOVE FORWARD N UNITS
BACK (BK) N - MOVE BACK N UNITS
RIGHT (RT) N - TURN RIGHT N DEGREES
LEFT (LT) N - TURN LEFT N DEGREES
CLEARSCREEN (CS) - CLEARS SCREEN
PENUP (PU) - RAISES TURTLE PEN
PENDOWN (PD) - LOWERS TURTLE PEN
SHOWTURTLE (ST) - SHOWS TURTLE SHAPE
HIDETURTLE (HT) - HIDES TURTLE SHAPE
WRAP - LINE WRAPS
NOWRAP - LINE GOES OFF SCREEN
HOME - CENTERS TURTLE
TURTLETHERE - TRUE IF SHOWTURTLE
HEADING - SHOW TURTLE HEADING
XCOR - SHOW TURTLE X COORD.
YCOR - TURTLE Y COORDINATE
TURTLEDELAY N - SLOW BY N MSEC.
SETXY X Y - SET LOCATION
SETHEADING (SETH) N - SET ANGLE
LOGO HELP FILE PAGE 3
OTHER COMMANDS:
REPEAT N [ COMMAND ] - LOOP N COMMANDS
SETPC N - SET PEN COLOR TO N
BACKGROUND N - BACKGROUND COLOR N
PALETTE N - SET PALLETE TO N
FILL N - FILL SHAPE,COLOR N
SOUND N - MAKE TONE,N CYCLES
NOSOUND - TURN OFF TONE
DELAY N - PAUSE N MSECS
MEDRES (MR) - DEFAULT GRAFMODE
HIRES (HR) - HIGHRES GRAFMODE
TEXTMODE (TM) - TEXT ONLY
DOS (SHELL) - DO DOS COMMANDS
CATALOG (DIR) - DIR A:\*.*
EDIT - START LOGO EDITOR
ERALL - CLEAR WORKAREA
ERASE XXX - ERASE PROCEDURE XXX
POALL - LIST ALL PROCEDURES
POTS - LIST PROC TITLES
PO XXX - LIST PROC XXX
LOGO HELP FILE PAGE 4
MORE COMMANDS:
LOAD XXX - LOAD FILE XXX
SAVE XXX - SAVE FILE XXX
TO XXX - LINE 1 OF PROC XXX
END - LAST LINE OF PROC
COUNT UP - INCREMENT COUNTER
COUNT ZERO - ZERO OUT COUNTER
COUNT PRINT - LIST COUNTER VALUE
COUNT IF= N XXX - IF COUNT=N THEN XXX
COUNT IF> N XXX - IF COUNT>N THEN XXX
STOP - STOP PROC EXECUTION
LOGOFF - QUIT LOGO
>>> TYPE "LOAD DEMO RUN" FOR A DEMO
OR TYPE "LOGO TUTORIAL" AT DOS PROMPT
(FILES WHICH AUTO-RUN FROM DOS PROMPT
MUST CONTAIN A PROCEDURE CALLED "RUN")