Preface

The basics of Computing

Cong to learn how a computer does simple arithmatic, such as mutipilication and division

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Restrictions and Rules

load, add, sub, rol, ror, prt

arname $=l$ load$($value$)$ Will load the value into a $16-$bit integer array

var$3$ var$1,$ var$2)$ Will perform subtraction: var$1-$ var$2$ and store the result in var$3$ and clear the carry bit if needed

$1=$rol$(var1)$ Will rotate all bits to the left by one position. The carry bit will move into bit $0$ and bit $15$ will move into the carry bit $r1=$ror$(var1)$ Will rotate all bits to the right by one position. The carry bit will move into bit $15$ and bit $0$ will move into the carry

carry # The carry bit prg$\_$cnt # instruction counter divide$\_$by$\_$zero #flag to mark division by zero. The following commmands oerte on the com

Clears the carry bit $(=0)$ set the carry bit $(=1)$

$($var$)$ do stuff..

if $($not var$)$:

for $i$ in rangel computer.machine$\_$perc$)$

$($var$,$ fmt$=1$

fmt:

print

print

prin