IMUL bug \ VOGONS

IMUL bug

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First post, by mikulas

Posted on 2013-05-21, 02:20

mikulas Offline

Rank Newbie

Rank: Newbie
Posts: 1
Joined: 2013-05-21, 01:42

There is a bug in IMUL instruction in DOSBOX 0.74. When executing these instructions, DOSBOX sets C and O flags while real CPU doesn't.
mov eax,0xFFFF0000
mov ebx,0x8000
imul eax,ebx

Reply 1 of 1, by ripsaw8080

Posted on 2013-05-21, 03:45

ripsaw8080 Offline

Rank DOSBox Author

Rank: DOSBox Author
Posts: 5094
Joined: 2006-04-25, 23:24

The issue was previously reported and should be fixed in SVN.

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