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library.lib
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PUSH BP
MOV BP,SP
JMP MAIN
COMPARE_FUN:MOV R2,R1
MOV R1, 6
CALL GET_ARGS
EQ R0,R2
RET
GET_ARGS:MOV R0, BP
SUB R0, R1
MOV R0, [R0]
RET
GET_HB_SIZE:MOV R0, 2048
MOV R1, 4
RET
MAIN:MOV R1, "Heapset"
CALL COMPARE_FUN
JZ R0, ALLOC_CHECK
CALL GET_HB_SIZE
SUB R0, R1
MOV R2, R0
HEAP_LOOP:SUB R2, R1
MOV [R0],R2
SUB R0, R1
MOV R3, 1024
EQ R3, R0
JZ R3, HEAP_LOOP
MOV [R0],-1
MOV R0,0
JMP END
ALLOC_CHECK:MOV R1, "Alloc"
CALL COMPARE_FUN
JZ R0, FREE_CHECK
CALL GET_HB_SIZE
SUB R0, R1
MOV R1, [R0]
MOV R2, [R1]
MOV [R0], R2
MOV R0, R1
JMP END
FREE_CHECK:MOV R1, "Free"
CALL COMPARE_FUN
JZ R0, CREATE_CHECK
MOV R1, 5
CALL GET_ARGS
MOV R2, R0
CALL GET_HB_SIZE
SUB R0, R1
MOV [R2], [R0]
MOV [R0], R2
MOV R0, 0
JMP END
CREATE_CHECK:MOV R1, "Create"
CALL COMPARE_FUN
JZ R0, DELETE_CHECK
MOV R0, 1
JMP PUSH_ARGS
DELETE_CHECK:MOV R1, "Delete"
CALL COMPARE_FUN
JZ R0, WRITE_CHECK
MOV R0, 4
JMP PUSH_ARGS
WRITE_CHECK:MOV R1, "Write"
CALL COMPARE_FUN
JZ R0, READ_CHECK
MOV R0, 5
JMP PUSH_ARGS
READ_CHECK:MOV R1, "Read"
CALL COMPARE_FUN
JZ R0, FORK_CHECK
MOV R0, 7
JMP PUSH_ARGS
FORK_CHECK:MOV R1, "Fork"
CALL COMPARE_FUN
JZ R0, EXEC_CHECK
MOV R0, 8
JMP PUSH_ARGS
EXEC_CHECK:MOV R1, "Exec"
CALL COMPARE_FUN
JZ R0, EXIT_CHECK
MOV R0, 9
JMP PUSH_ARGS
EXIT_CHECK:MOV R1, "Exit"
CALL COMPARE_FUN
JZ R0, GETPID_CHECK
MOV R0, 10
JMP PUSH_ARGS
GETPID_CHECK:MOV R1, "Getpid"
CALL COMPARE_FUN
JZ R0, GETPPID_CHECK
MOV R0, 11
JMP PUSH_ARGS
GETPPID_CHECK:MOV R1, "Getppid"
CALL COMPARE_FUN
JZ R0, WAIT_CHECK
MOV R0, 12
JMP PUSH_ARGS
WAIT_CHECK:MOV R1, "Wait"
CALL COMPARE_FUN
JZ R0, SIGNAL_CHECK
MOV R0, 13
JMP PUSH_ARGS
SIGNAL_CHECK:MOV R1, "Signal"
CALL COMPARE_FUN
JZ R0, SEMGET_CHECK
MOV R0, 14
JMP PUSH_ARGS
SEMGET_CHECK:MOV R1, "Semget"
CALL COMPARE_FUN
JZ R0, SEMRELEASE_CHECK
MOV R0, 17
JMP PUSH_ARGS
SEMRELEASE_CHECK:MOV R1, "Semrelease"
CALL COMPARE_FUN
JZ R0, SEMLOCK_CHECK
MOV R0, 18
JMP PUSH_ARGS
SEMLOCK_CHECK:MOV R1, "SemLock"
CALL COMPARE_FUN
JZ R0, SEMUNLOCK_CHECK
MOV R0, 19
JMP PUSH_ARGS
SEMUNLOCK_CHECK:MOV R1, "SemUnLock"
CALL COMPARE_FUN
JZ R0, SHUTDOWN_CHECK
MOV R0, 20
JMP PUSH_ARGS
SHUTDOWN_CHECK:MOV R1, "Shutdown"
CALL COMPARE_FUN
JZ R0, END
MOV R0, 21
JMP PUSH_ARGS
PUSH_ARGS:PUSH R0
MOV R1, 5
CALL GET_ARGS
PUSH R0
MOV R1, 4
CALL GET_ARGS
PUSH R0
MOV R1, 3
CALL GET_ARGS
PUSH R0
PUSH R0
MOV R1, "Create"
CALL COMPARE_FUN
JZ R0, DELETE_CALL_CHECK
INT 4
JMP POP_ARGS
DELETE_CALL_CHECK:MOV R1, "Delete"
CALL COMPARE_FUN
JZ R0, WRITE_CALL_CHECK
INT 4
JMP POP_ARGS
WRITE_CALL_CHECK:MOV R1, "Write"
CALL COMPARE_FUN
JZ R0, READ_CALL_CHECK
INT 7
JMP POP_ARGS
READ_CALL_CHECK:MOV R1, "Read"
CALL COMPARE_FUN
JZ R0, FORK_CALL_CHECK
INT 6
JMP POP_ARGS
FORK_CALL_CHECK:MOV R1, "Fork"
CALL COMPARE_FUN
JZ R0, EXEC_CALL_CHECK
INT 8
JMP POP_ARGS
EXEC_CALL_CHECK:MOV R1, "Exec"
CALL COMPARE_FUN
JZ R0, EXIT_CALL_CHECK
INT 9
JMP POP_ARGS
EXIT_CALL_CHECK:MOV R1, "Exit"
CALL COMPARE_FUN
JZ R0, GETPID_CALL_CHECK
INT 10
JMP POP_ARGS
GETPID_CALL_CHECK:MOV R1, "Getpid"
CALL COMPARE_FUN
JZ R0, GETPPID_CALL_CHECK
INT 11
JMP POP_ARGS
GETPPID_CALL_CHECK:MOV R1, "Getppid"
CALL COMPARE_FUN
JZ R0, WAIT_CALL_CHECK
INT 11
JMP POP_ARGS
WAIT_CALL_CHECK:MOV R1, "Wait"
CALL COMPARE_FUN
JZ R0, SIGNAL_CALL_CHECK
INT 11
JMP POP_ARGS
SIGNAL_CALL_CHECK:MOV R1, "Signal"
CALL COMPARE_FUN
JZ R0, SEMGET_CALL_CHECK
INT 11
JMP POP_ARGS
SEMGET_CALL_CHECK:MOV R1, "Semget"
CALL COMPARE_FUN
JZ R0, SEMRELEASE_CALL_CHECK
INT 13
JMP POP_ARGS
SEMRELEASE_CALL_CHECK:MOV R1, "Semrelease"
CALL COMPARE_FUN
JZ R0, SEMLOCK_CALL_CHECK
INT 13
JMP POP_ARGS
SEMLOCK_CALL_CHECK:MOV R1, "SemLock"
CALL COMPARE_FUN
JZ R0, SEMUNLOCK_CALL_CHECK
INT 14
JMP POP_ARGS
SEMUNLOCK_CALL_CHECK:MOV R1, "SemUnLock"
CALL COMPARE_FUN
JZ R0, SHUTDOWN_CALL_CHECK
INT 14
JMP POP_ARGS
SHUTDOWN_CALL_CHECK:MOV R1, "Shutdown"
CALL COMPARE_FUN
JZ R0, END
INT 15
JMP POP_ARGS
POP_ARGS:POP R1
POP R0
POP R0
POP R0
POP R0
MOV R0, R1
JMP END
END:
MOV R2,R0
MOV R0, BP
MOV R1, 2
SUB R0,R1
MOV [R0], R2
MOV BP, [SP]
POP R0
RET