BLKI, or hardware read-in format.

[larsbrinkhoff]

This is the format used by hardware read-in mode. It's started by a BLKI pointer word, and then followed by a block of words specified by that pointer. The last word in that block is the start instruction.

In effect hardware read-in does this:

1. DATAI device,0
2. BLKI device,0
3. JRST @0

[larsbrinkhoff]

Note that the already supported rim10 format is a special case of this. It also runs the code that was loaded, in order to execute the paper tape bootstrap which reads the rest of the tape.

[larsbrinkhoff]

Reading this format is easy. However, writing needs a way to pass in the start and end of the memory region.