CVS commit: src/sys/dev/wscons

["Valery Ushakov" <uwe%netbsd.org@localhost>]

Module Name:    src
Committed By:   uwe
Date:           Wed Aug  2 22:37:02 UTC 2023

Modified Files:
        src/sys/dev/wscons: wsemul_vt100.c

Log Message:
wsemul_vt100: fix RI to not scroll outside of scroll region

This is the inverse (scroll down) of the problem reported and fixed
for IND (scroll up) in PR kern/11827 back in 2000.

We only have one call site for this, but still move this bit of code
into a separate wsemul_vt100_prevline function to make it symmetric
with wsemul_vt100_nextline.  While here, make both take vt100base_data.


To generate a diff of this commit:
cvs rdiff -u -r1.51 -r1.52 src/sys/dev/wscons/wsemul_vt100.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.