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sim> mem df00 DF00 C3 5C E2 C3 58 E2 7F 00 43 6F 70 79 72 69 67 68 .\..X...Copyrigh DF10 74 20 31 39 37 39 20 28 63 29 20 62 79 20 44 69 t 1979 (c) by Di DF20 67 69 74 61 6C 20 52 65 73 65 61 72 63 68 20 20 gital Research DF30 20 20 20 20 00 00 00 00 00 00 00 00 00 00 00 00 ............ DF40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ DF50 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ DF60 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ....s...ub...m.. DF70 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ..I..tT...e..... DF80 00 00 00 00 00 00 00 00 08 DF 00 00 5F 0E 02 C3 d....4...l.._0.r DF90 05 00 C5 CD 8C DF C1 C9 3E 0D CD 92 DF 3E 0A C3 .d..M...>....>.. DFA0 92 DF 3E 20 C3 92 DF C5 CD 98 DF E1 7E B7 C8 23 ..> ..a.....~..# DFB0 E5 CD 8C DF E1 C3 AC DF 0E 0D C3 05 00 5F 0E 0E ...r........._.. DFC0 C3 05 00 CD 05 00 32 EE E6 3C C9 0E 0F C3 C3 DF ...K..2..<..'.s. DFD0 AF 32 ED E6 11 CD E6 C3 CB DF 0E 10 C3 C3 DF 0E .2...a...p.P.... DFE0 11 C3 C3 DF 0E 12 C3 C3 DF 11 CD E6 C3 DF DF 0E ...r...0..v..... DFF0 13 C3 05 00 CD 05 00 B7 C9 0E 14 C3 F4 DF 11 CD .....a.l........ sim> reg C0Z1M0E1I1 A=02 B=007F D=DF06 H=EA0E S=EA37 P=FA6B ANI 01h sim> set on sim> on error reg sim> s Step expired, PC: 0FA6D (JZ 0FA69h) C0Z1M0E1I1 A=00 B=007F D=DF06 H=EA0E S=EA37 P=FA6D JZ 0FA69h sim> s Step expired, PC: 0FA69 (IN 10h) C0Z1M0E1I1 A=00 B=007F D=DF06 H=EA0E S=EA37 P=FA69 IN 10h sim> s Step expired, PC: 0FA6B (ANI 01h) C0Z1M0E1I1 A=02 B=007F D=DF06 H=EA0E S=EA37 P=FA6B ANI 01h
Open SIMH machine simulator
This is the codebase of SIMH, a framework and collection of computer system simulators.
SIMH was created by Bob Supnik, originally at Digital Equipment Corporation, and extended by contributions of many other people. It is now an open source project, licensed under an MIT open source license (see LICENSE.txt for the specific wording). The project gatekeepers are the members of the SIMH Steering Group. We welcome and encourage contributions from all. Contributions will be covered by the project license.
The Open SIMH code base was taken from a code base maintained by Mark Pizzolato as of 12 May 2022. From that point onward there is no connection between that source and the Open SIMH code base. A detailed listing of features as of that point may be found in SIMH-V4-status.
PLEASE NOTE
Do not contribute material taken from github.com/simh/simh unless you are the author of the material in question.