I am working on a ZX81 machine code program.
I have a question. I believe the answer may
have appeared in SYNC Magazine (Vol.3 No.6,
featuring "Machine Language:ROM Calls" ???)
but my copy has been misplaced.

My question: how do you determine which key
has been pressed? I need to know the CODE
value of the key pressed.

If I remember correctly, there is a ROM call,
followed by the placing of register BC in HL,
followed by another ROM call.
If anyone can post the exact details, or scan
the "ROM Calls" article out of SYNC (that'll
be a very big help), I would appreciate it.

Thank you,
zx81forever@...