izaya/collapseos
1
0
Fork 0
mirror of https://github.com/hsoft/collapseos.git synced 2024-12-28 08:38:05 +11:00
Code Issues Releases Wiki Activity

ed: fix 'd' going crazy when deleting last lines of buf

Browse Source
This commit is contained in:
Virgil Dupras 2019-07-21 19:43:45 -04:00
parent 0fd16a0bb6
commit 0237ff105f
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
apps/ed/buf.asm
View File

@ -111,6 +111,13 @@ bufDelLines:
pop de ; <-- lvl 2
pop hl ; <-- lvl 1
; Line count updated!
; One other thing... is BC zero? Because if it is, then we shouldn't
; call ldir (otherwise we're on for a veeeery long loop), BC=0 means
; that only last lines were deleted. nothing to do.
ld a, b
or c
ret z ; BC==0, return
; let's have invert HL and DE to match LDIR's signature
ex de, hl
; At this point we have higher index in HL, lower index in DE and number