temp=0, reserve

[tomhea]

;F ops should be assembled to 0;F.

This makes a zero-initialized memory to be simply created by 0-bits.

That's because 128 zero bits will create a zero bit_var in flip_jump.

The .reserve n op will create a segment with n 0-bits.
Maybe .org addr op for starting a segment in this address.

And maybe: .segment .end for each segment?
allowing user to "allocate" bits as an empty segment.

That means to also update blm to support "empty segments", as segments with size, full of zeros.

[tomhea]

temp=0 implemented.

[tomhea]

.segment X - starts a segment at address X.

• all previes wflips will happen right before the start of this new segment.
• implicit start of segment at address 0, implicit end of last segment at the end of the code.
  .reserve X - reserves X 0-bits at this address.
• reserve - sets the segment length higher than the data length.