Intcode Brainf*ck interpreter pseudocode

1106 (jez) 0 [intcode program start index] [data pointer] [instruction pointer] [brainfuck code start index] [data tape start index] [bracket count = 0] [temp]
begin:
    initialize code_start_index = data_tape_start_index = data_pointer = instruction_pointer = offset = a safe value (after end of intcode code)
    load brainfuck program into memory:
        load_loop:
            input character to offset location
            increment data_tape_start_index, data_pointer, offset
            jez offset-1 end_load
        end_load:
            increment data_tape_start_index, data_pointer, offset (to keep the NUL character)
loop:
    exit program if reached end
    switch (brainfuck instruction):
        >: 109 (offset mode 2 ptr) 1; 101 1 3 3
        <: 109 -1; 101 -1 3 3
        +: 22101 1 0 0
        -: 22101 -1 0 0
        .: 204 0
        ,: 203 0
        [: jnz end; reset offset; set offset to instruction pointer; goto loop_exit
        ]: jnz end; reset offset; set offset to instruction pointer; goto loop_enter
end:
    increment instruction pointer
    goto loop
loop_exit:
    switch (brainfuck instruction):
        [: increment bracket count
        ]: decrement bracket count; jez loop_end

    increment instruction pointer and offset
    goto loop_exit
loop_enter:
    switch (brainfuck instruction):
        ]: increment bracket count
        [: decrement bracket count; jez loop_end

    decrement instruction pointer and offset
    goto loop_enter

loop_end:
    reset offset; set offset to data pointer; goto loop