Implement read real

File I/O

Procedure parameters

Try out under Vkernel

Handle double floating correctly

Optimize to use auto-increment modes

Fix pc68 - .lst

Block and string compares (direction, =, <>, ...)

Handle compilation (source) errors gracefully

Documentation, incl. man pc68

Clean directories: where are things supposed to go?

Replace DIV, MOD of 2**i by shift or mask? Mul by 10?
