Microprocessor simulator

product review Turnkey system /', complete system consrstmg of a mlc),)computer, keyboard, triple floppy dtscs, d)spla,, and printer has been launched in Europe by Gamma Computer Products, and costs £7 500 in one-off quantities Dusigned by General Robotics Corporalion o[ W)sconsm, USA, the system is based on the new half-s~ze LSI l l / 2 c a r d s f ) o m DEC TheCPU Js PDP 11 software compatible and comes complete with 64 khytes RAM. The floppy dtscs are double-sided Pertec MIcroFIoppys Dvmg a total memory capacity of over 1.25 Mbytes. The pnnter comes from Centromcs and has a speed of 60 character/s and column width of 132 characters. The plasma a 21 '( lines X

dlspla} is a 'self-scan' gas umt from Burroughs, providing 12 cm viewing area with 12 40 columns

DON'T

BASIC, FORTRAN, APL and FILETAB (a PDP 11 versEon ot RPL) are among the high-level languages to be offered, and nmesharmg software for multi-user envwonments is also available (Gamma Assocmtes, Com-

pass House, The Rope~va/k, Nottingham, L/K Telephone (0602) 49555 Telex 3~7Xl 7)

Microprocessor simulator The Mechamcal Engineering Department at UMIST has developed a program enabling PDP8 users to ,imulate the M6800 The program is available in alternatwe versions for systems with MIKBUG or MINIBUG debugging aids. At least 8 kwords or memory and

paper-tape input are requ)red to run the software, so that any mlcroporcessor program under test can be generated on paper tape by crossassemblers already a~adable on the market All available PDP8 memory above Fmld 0 may be used to simulate both random-access and/or read-only memt,rv Reg~ste) and memory contents may be &splayed or modified and programs ma~ be executed either contmuousl; o) ~n 1)ace mode Up to four breakpomts facd~tate program testing and timing Jn conluct~on with the cycle count Both versions of the program ale avadable, as a package m standard bmar,, paper-tape format accompamed by a user's manual, price £115 (US $ 200)less 25% fo) educational establ)shments (G t/ Vale, Depart-

ment o f Mechamca/ Engineering, UMIST, ~lanchester :ll60 IQD, UK. Telephone: 061-236 3311)

YOU ONE OF YOUR OWN?

The annual subscrlptton (six Issues) ISSN 0 3 0 8 4 9 5 3 is £23 00 in the UK and £35.00 To IPC Business Press [Sales and Distribution) Limited, Oakfield House, overseas, including postage by Perrymount Road, Haywards Heath, Sussex, England RH16 3DH surface marl airmail rates quoted Telephone 0444-59188 Telex. 25137 BIS PRS G on request. The journal is also pubhshed on 98-frame, A6 microPlease enter a subscription to MICROPROCESSORS fi~1 one ~ eal (s]x issues) at fiche the price is [he same as for the printed edltmn, but includes I--1£'2_300 UK E1£35 00 overseas r-ISC)l 00 LISA binder and dispatch by first class Microfiche edition r-1£35 00 overseas 1:3£24 84 UK (including VAT) r-lgt)l O0 [rSA post or airmail (UK nucroflche My remittance for £ is enclosed (bee contents subscrlptmns are subject to VAT page for US at 8 per cent) (cheques payable to IPC Business Press knnltedl addresb) Make sure of your regular copies of MICR OPROCESSORS by Nam e completing the order form and returning it without delay, rather direct to us or through your Orgamzatlon and address subscnptmn agency Your subscnptmn will be semced as soon as payment is recewed Signature Date

188

microprocessors