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imageandvideo.asm
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; FUNÇÕES DE VÍDEO E PRINTAR IMAGEM
%macro print 4
pusha
mov ah, 02h
mov bh, 0
mov dh, %3
mov dl, %4
int 10h
mov si, %1
mov bl, %2
call print_string
popa
%endmacro
printimage:
push dx
push cx
.loop:
lodsb
cmp al,'0'
je .fim
cmp al,'.'
je .next_line
.next_pixel:
call printpixel
inc cx
jmp .loop
.next_line:
pop cx
push cx
inc dx
lodsb
jmp .next_pixel
.fim:
pop cx
pop dx
ret
%macro stoi 1: ; mov si, string
mov si, score_n
.loop1:
push %1
lodsb
mov cl, al
pop %1
cmp cl, 0 ; check EOF(NULL)
je .endloop1
sub cl, 48 ; '9'-'0' = 9
mov bx, 10
mul bx ; 999*10 = 9990
add %1, cx ; 9990+9 = 9999
jmp .loop1
.endloop1:
%endmacro
printpixel:
mov ah, 0ch
mov bh, 0
int 10h
ret
set_mode:
mov ah, 0
mov al, 13h
int 10h
mov ah, 0xb
mov bh, 0
mov bl, 3
int 10h
mov ah, 0xe
mov bh, 0
mov bl, 0xf
ret
print_string:
lodsb
cmp al,8
je doneprint
mov ah, 0xe
mov bh, 0
int 10h
jmp print_string
doneprint:
mov ah, 0eh
mov al, 0xd
int 10h
mov al, 0xa
int 10h
ret
putchar:
mov ah, 0x0e
int 10h
ret
getchar:
mov ah, 0x00
int 16h
ret
reverse: ; mov si, string
mov di, si
xor cx, cx ; zerar contador
.loop1: ; botar string na stack
lodsb
cmp al, 0
je .endloop1
inc cl
push ax
jmp .loop1
.endloop1:
.loop2: ; remover string da stack
pop ax
stosb
loop .loop2
ret
tostring: ; mov ax, int / mov di, string
push di
.loop1:
cmp ax, 0
je .endloop1
xor dx, dx
mov bx, 10
div bx ; ax = 9999 -> ax = 999, dx = 9
xchg ax, dx ; swap ax, dx
add ax, 48 ; 9 + '0' = '9'
stosb
xchg ax, dx
jmp .loop1
.endloop1:
pop si
cmp si, di
jne .done
mov al, 48
stosb
.done:
mov al, 0
stosb
call reverse
ret
_fim: ; finaliza e retorna para o kernel
.wait:
call .getchar
cmp al, 13
je .fim
jmp .wait
.getchar:
mov ah, 00h
int 16h
ret
.fim:
;call _clear
;ret
pop ax
jmp start