Branching - JGE/JNL, JL/JNGE and JLE/JNG failed. about x8086netemu HOT 6 CLOSED

I've always suspected that the code responsible for setting the flags has issues and this appears to confirm it.
Is the source code for branch2 available?

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Just tested the program with fake86 (an 8086 emulator that works perfectly) and branch2 also reports FAILED on all tests... so I'm afraid there's some bug in this test utility.

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hmmm... interesting. the Program passes all tests under VirtualPC running MS-DOS 6.22.
pce-ibmpc version 0.2.1 also passes all tests.

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I've just updated the code with several fixes, including the emulation of the PUSHF, POPF, SAHF and LAHF opcodes. This fix allows the emulator to pass all of branch2.exe tests.
It does not, however, solve any of the per-existing issues with EDIT, QBASIC, DEFRAG, CHECKIT, etc...

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I'm attaching the source and binary for the complete tests that I found.

testea_and_branch.zip

For branch2 test; I just adding a jump to the tests that were failing.

Interestingly enough... these are by the author of Fake86 from a forum post. ;-)

I'll continue looking for additional ways to test...

Merged your changes and confirmed that these tests are passing... closing this this issue.

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About two years ago, Mike Chambers, the author of fake86, was helping me troubleshoot some of the issues in the emulator... but, for some reason, I lost contact with him.
Even his web sites appear to have been abandoned...

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