.define putchr
.sect .text
.sect .rom
.sect .data
.sect .bss
putchr:
push hl
push de
push bc
cp 0x0A
jr nz,1f
ld a,0x1F
1:
ld c,a
2:
in a,0xF1
and 4
jr z,2b
ld a,c
out 0xF0,a
pop bc
pop de
pop hl
ret