| ID | Category [?] | Severity [?] | Reproducibility | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 07156 | Graphics | Minor | Always | Nov 19, 2018, 23:53 | Aug 22, 2019, 14:42 |
| Tester | shattered | View Status | Public | Platform | MAME (Self-compiled) |
| Assigned To | Resolution | Open | OS | Linux (64-bit) | |
| Status [?] | Acknowledged | Driver | |||
| Version | 0.203 | Fixed in Version | Build | 64-bit | |
| Fixed in Git Commit | Github Pull Request # | ||||
| Summary |
 07156: vt240: Screen corruption involving scroll regions |
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| Description |
- connect to a remote system that allows output of arbitrary escape sequences to the terminal (say, a Unix system with a shell) - output two full screens of data (say, a listing of MAME source tree at src/devices/cpu and src/devices/bus) - output a DECSTBM sequence to set top and bottom margins of scroll region, and then a CUP sequence to position cursor at its bottom left corner. For example: printf "\033[1;23r\033[23;1H\r\n" - observe screen corruption |
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| Steps To Reproduce | |||||
| Additional Information | |||||
| Github Commit | |||||
| Flags | |||||
| Regression Version | |||||
| Affected Sets / Systems | vt240 | ||||
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Attached Files
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 vt240mt.png (10,204 bytes) Nov 19, 2018, 23:53 Uploaded by shattered | ||||
| vt240good.png (5,955 bytes) Aug 22, 2019, 14:39 Uploaded by shattered screenshot before the sequence is sent
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 No.15795
crazyc Developer
Nov 20, 2018, 03:10
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I guess I'm not sure what those escapes do or better yet what the screen should look like after they're sent. |
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No.16780
shattered Tester
Aug 22, 2019, 14:42
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DECSTBM = "This control function sets the top and bottom margins for the current page. You cannot perform scrolling outside the margins." (via https://vt100.net/docs/vt510-rm/DECSTBM.html) The horizontal shift is unexpected. |