11-uc-berkeley-eecs-department

11: UC Berkeley (EECS Department)

Instructions

Locate the specified host (either tape-1, tape-2, or tape-3), and then locate the specified entry (‗ПАСЬЯНС‗) in the tape backup file in that host (file 200). Create a file in your host containing the entry's data.

The names of the target host and entry are available in file 300.

For more information see "Accessing Data in Legacy Storage Systems" in the first issue of the zine.

Solution

XA (global)

GRAB 300
COPY F X
MARK SEARCH
LINK 800
HOST T
TEST T = X
FJMP SEARCH
COPY F X
WIPE
GRAB 200
MARK SEARCH2
TEST F = X
FJMP SEARCH2
COPY F T
COPY F X
SEEK -9999
SEEK T
COPY 1 M
MARK TRANS_SV
COPY F M
SUBI X 1 X
TEST X = 0
FJMP TRANS_SV
COPY -1 M
DROP
HALT

XB (global)

MAKE
TEST M = 1
MARK TRANS_HM
COPY M X
TEST X = -1
FJMP COPY
HALT
MARK COPY
COPY X F
JUMP TRANS_HM

Results

Cycles	Size	Activity
424	36	7