Индексная адресация с операндами типа byte

mov al,b[bx][si]

.386
      .model flat, stdcall
      option casemap :none   ; case sensitive  
      include D:\masm32\include\windows.inc
      include D:\masm32\include\masm32.inc
      include D:\masm32\include\kernel32.inc
      include D:\masm32\include\user32.inc 
      includelib D:\masm32\lib\user32.lib
      includelib D:\masm32\lib\masm32.lib
      includelib D:\masm32\lib\kernel32.lib
      include D:\masm32\include\fpu.inc       
      include D:\masm32\include\msvcrt.inc
      includelib D:\masm32\lib\msvcrt.lib
      include D:\masm32\macros\macros.asm
      includelib D:\masm32\lib\fpu.lib    
.data
 b db 20 dup(0)
 fm db '%d',0 
 tpt db '%d, ',0
 Numbers dd ?
 Input dd ?
 Output dd ?
 Buffer db ?
 string1 db ?
 buf db ?
  jump  db 13,10 
 pr db "Enter the element of massiv"
 pt2 db "Massiv was downloaded"
 tbuf dd ?
 lines dw 4
 columns dw 5
 amount db ?
 bufecx dw ?
 max dd ?
 .code
sturt:
print_lines_and_columns:
 
invoke GetStdHandle, STD_INPUT_HANDLE   
mov Input, eax  
invoke GetStdHandle, STD_OUTPUT_HANDLE  
mov Output, eax
 
Creations:
mov cx,20
mov si,0
m1:
mov bx,cx 
invoke WriteConsoleA, Output, addr pr, SIZEOF pr, addr Numbers,0
invoke WriteConsoleA, Output, addr jump, SIZEOF jump, addr Numbers,0
invoke ReadConsoleA,Input,ADDR Buffer,20, ADDR Numbers, 0
invoke crt_atoi,ADDR Buffer
mov b[si],al
inc si
mov cx,bx 
loop m1
invoke WriteConsoleA, Output, addr pt2, SIZEOF pt2,addr Numbers,0
invoke WriteConsoleA, Output, addr jump, SIZEOF jump, addr Numbers,0
 
 
prints:
mov bx,0
mov si,0
mov cx,0
check1:
mov si,0
mov al,b[bx][si]
mov dx,0
mov bufecx,cx
test al,1
jnz m3
print_lines1:
mov al,b[bx][si] 
mov buf,al
pusha
invoke wsprintf, addr string1,addr fm,sbyte PTR buf
invoke  crt_printf, ADDR tpt, buf 
popa
inc dx
inc si
cmp dx,columns
jl print_lines1
m3:
invoke WriteConsoleA, Output, addr jump, SIZEOF jump, addr Numbers,0
mov cx,bufecx
 inc cx
 mov ax,columns
 add bx,ax
 mov ax,lines
cmp cx,ax
jl check1
invoke  crt__getch
invoke  crt_exit,0
end sturt