1
0
mirror of https://github.com/hsoft/collapseos.git synced 2024-11-24 04:58:06 +11:00
collapseos/apps/ed/util.asm
Virgil Dupras 4f7a05e3b7 core: remove cpHLDE
It wasn't used much, so I replaced its use in the kernel with direct code
and moved the routine in apps/ed, the only other place where it was used.
2019-12-12 15:53:14 -05:00

9 lines
219 B
NASM

; Compare HL with DE and sets Z and C in the same way as a regular cp X where
; HL is A and DE is X.
cpHLDE:
push hl
or a ;reset carry flag
sbc hl, de ;There is no 'sub hl, de', so we must use sbc
pop hl
ret