Article-I.D.: ariel.146
Posted: Thu Dec  2 16:50:59 1982
Received: Fri Dec  3 09:00:15 1982

	I am looking for any information, books
or personal experience with the ZX81 computer.
(Also any information on the Timex sinclair 1000,
 assuming there are almost identical machines.)

Preferably information or documentation on:

	1) The hardware characteristics:
		a) keyboard scanning
		b) load and save machine level
		   operation
		c) I/O port addresses(ing)

	2) Info on the ROM (monitor - operating system):
		a) a dissasembly (hopefully !!!!)
		b) use of ROM subroutines
		c) *-> any INFO <-*

	3) Any info that would make it possible
	   to better understand the the Z80A's
	   machine level programming particular
	   to the ZX81 or Sinclair.

	I have been searching book stores, and
my associate workers minds for readily available
info, (with little luck).

	Any pointers or info will be greatly
appreciated.

Please send mail or call

Thanx in advance.

Dave Plaisted (ariel!dmp)
Bell Laboratories
Holmdel, NJ
201-949-4437