ed: fix broken buf insert logic

This commit is contained in:
Virgil Dupras 2019-07-21 10:52:36 -04:00
parent 1a5a1b9861
commit 8d7abd9994

View File

@ -147,9 +147,12 @@ bufInsertLine:
; when it's time to insert the line in the space we make.
ld hl, (BUF_LINECNT)
call bufLineAddr
; HL is pointing to *first byte* after last line. Our source needs to
; be the second byte of the last line and our dest is the second byte
; after the last line.
push hl \ pop de
dec hl
dec hl
dec hl ; second byte of last line
inc de ; second byte beyond last line
; HL = BUF_LINECNT-1, DE = BUF_LINECNT, BC is set. We're good!
lddr
; We still need to increase BUF_LINECNT