- Add the missing ibm1130.rc GUI resource file to the Windows build so that the GUI renders correctly. - Set the add_simulator TEST_ARGS to "-g" to fix an edge case Heisenbug encountered during Github CI/CD tests where ibm1130 appears to hang indefinitely on the Windows runners. The cause is the GUI's Pump() thread function being prematurely terminated before all GUI resources are acquired. The net result is an infinite loop in the MS C runtime trying to exit the process with unstable internal state. (Separate patch: synchronization across main and Pump() threads to ensure resource acquisition completes.) This issue never shows (cannot show) up on non-Windows platforms or the SIMH makefile. - Ibm1130/ibm1130_cr.c - Fix printf() warnings (format should be long, not int) - Signed/unsigned mismatch, size_t for array indexing - Comment out the unused trim() function. - Ibm1130/ibm1130_cpu.c, ibm1130_gui.c: Remove undefined static functions.
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.