prodigy@quiche (Chris ALPAUGH) (11/15/89)
Has anybody out there ever written any sort of assembly language simulator? I'd be interested to know what sort of algorithms and techniques you used to decode the instructions. This is a limited project, so I'm not going to attempt to write an entire assembler, but just a program that will accept assembled PDP-11 code and "run it", in a simulated environment. Any info on this sort of ting would be greatly appreciated. General algorithms and ideas would be great. thanks in advance, Chris Address: prodigy@calvin.cs.mcgill.ca
jrh@mustang.dell.com (jrh) (11/16/89)
When I took assembler at UT Austin, they were using such an animal... A PDP-11 simulator running on a CDC Dual Cyber I believe. If you contact the cs.utexas.edu they may have some good information for you. Been several years though,they may not even use it anymore. ------------------------------------------------------------------------- James R. Howard !s: cs.utexas.edu!dell!mustang!jrh
fenske@dfsun1.electro.swri.edu (Robert Fenske Jr) (11/16/89)
In article <4259@dell.dell.com> jrh@mustang.dell.com (jrh) writes: >When I took assembler at UT Austin, they were using such an animal... A PDP-11 >simulator running on a CDC Dual Cyber I believe. If you contact the >cs.utexas.edu they may have some good information for you. Been several years >though,they may not even use it anymore. This is essentially correct. UT has (up until '84 when I left anyway) two CDC Cyber 170/750's (fastest number cruncher I've ever used with the second worst OS I've ever used [the power of the '60s at your finger tips!]). The PDP-11 simulator, written in PASCAL I believe, was for the lower-div assembly class. Don't know what this has to do with C though. -- Robert Fenske, Jr. Sw | The Taming the C*sm*s series: Electromagnetics Division /R---\ | Southwest Research Institute | I | | "The Martian canals were the dfsun1.electro.swri.edu 129.162.160.4 \----/ | Martian's last ditch effort."