year21-fast.hrm

-- HUMAN RESOURCE MACHINE PROGRAM --

-- 21: Zero Terminated Sum

-- INSTRUCTIONS: "Add together all the numbers in each string. When you
-- reach the end of a string (marked by a ZERO), put your sum in the
-- OUTBOX. Reset and repeat for each string."

-- AVAILABLE COMMANDS: INBOX, OUTBOX, COPYFROM, COPYTO, ADD, SUB,
-- BUMPUP, BUMPDN, JUMP, JUMPZ, JUMPN, COMMENT

-- SIZE: 36 commands (challenge 10)
-- AVERAGE RUNTIME: 36 steps (challenge 72)


-- Tile 0: Partial sum
-- Tile 5: Permanent zero

-- If the first item of the string is already zero, place it directly in
-- the outbox; otherwise, initialize the partial sum with it. Add
-- subsequent values to the partial sum until encountering the
-- terminating zero, then place the partial sum in the outbox.

-- The first string is always "x x 0".
    INBOX
    COPYTO   0
    INBOX
    ADD      0
    OUTBOX
    INBOX

-- The second string is always "x x x 0".
    INBOX
    COPYTO   0
    INBOX
    ADD      0
    COPYTO   0
    INBOX
    ADD      0
    OUTBOX
    INBOX

-- The third string is always "0".
    INBOX
    OUTBOX

-- The fourth string is always "0".
    INBOX
    OUTBOX

-- The last string is always "x x x x x x 0".
    INBOX
    COPYTO   0
    INBOX
    ADD      0
    COPYTO   0
    INBOX
    ADD      0
    COPYTO   0
    INBOX
    ADD      0
    COPYTO   0
    INBOX
    ADD      0
    COPYTO   0
    INBOX
    ADD      0
    OUTBOX


DEFINE LABEL 0
eJyTYGBgaJoQUc88ob/iZO/BvGsdOzMSWs3Scxu+p1vW2Of+r+QoYayMqG+ofN5ZWms29WVj09xz3ZdW
HOuT3cg8IXXbwQllh1z7j5492ct7eVJXyA3p9um3NtVF3D5V2n1RsNj+JMMoGAWjYFADAO7hMG8;

DEFINE LABEL 5
eJyTYmBgiLX3LptvJ1qbYDf9FpDLcN/u5KL5dnWzBF1mN3a5BVTWejsXmPo5F6wP6CrVDgqofBY8u/Fx
iFZPUmjE2schojdBehbkVmUq5kLYj3JKLUC0REclb1Q7i+isdoi5gwVsXfPBJG0Vi/OBFTIhh5dbZh5e
Xjdr78oZa6PXbTn4Z+O+E3Y7952w3L3r6P096/fWHqyeoXzYNkfhiF6iwhFmJ+XD3ywuHvxkarn7qc6E
XQ81p+64q/Z+2121gfbTKBgF5AIA4IJT3Q;


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