mov     ax,0x1130
mov     bh,0x06

int     0x10

push    es
pop     ds
xor     ax,ax
mov     es,ax

mov     si,bp
mov     di,font
mov     bp,di

mov     cx,256

copy_loop:
mov     bx,16

sub_copy_loop:
lodsb

mov     ah,8

sub_sub_copy:
shl     al,1
rcr     dl,1
dec     ah
jnz     sub_sub_copy

dec     bx
mov     [es:di+bx],dl
jnz     sub_copy_loop

add     di,16
loop    copy_loop


mov     ax,0x1100
mov     bx,0x1000
mov     cx,0x0100
cwd

int     0x10