Have solved my problem, but in case someone ever finds it: the answer is yes, dynamic core does distort illegal read location. For example this code: mov cl, byte ptr [edx + 1] mov cl, byte ptr [edx + 2] mov cl, byte ptr [edx + 3] for dynamic core will give such illegals: illegal read from 22446601, …

This is one of the game's long known bugs Do you mean with DOSBox specifically? Hardly anyone runs this game wihout DOSBox for at least 10 years. But I think no, this bug is not DOSBox-specific and can be observed in DOS. No, pretty much no one comes here with questions about how the DOSBox core …

This is one of the game's long known bugs, and there are reports from different users confirming it, either GOG, Steam or original CD owners. So it's unlikely that game files have been damaged. And even if they had, what I ask is about how DOSBox core works, not about the specific bug. I thought …

Dosbox version is 0.74, it's a standard win32 download. The game is Master of Orion 2, why, does the game matter?

Hello! I have a rare crash in a dos game. When it happens it always spams messages like "Illegal read from 14a5d49f, CS:IP 180: 28942a", always with the same IP. The instruction in executable corresponding to 28942a is "lea eax, [ecx + ecx]". The questions are: 1. My understanding is that lea can't …

I am going to use it in my _die function, so longer opcode is no problem and easier setup with BPINT 3 is preferable to changing int 3 vector. Anyway thanks for your suggestion. Also a stack trace would be handy. I assume dosbox debugger can't do it and i have to code it myself. Is this correct?

NewRisingSun wrote: Use the debugger's command BPINT 3 together with INT 3 using the two-byte form of the instruction (CD 03). That works, thanks.

Hello! I am using dosbox debugger (heavydebug build) to test my patch of a dos program. I want to pause the program when a certain condition is met. How can I do it? I tried INT 3, but it does not work.