[Bochs-developers] text_update()

[Ken B. <kb...@mi...>]

I like to log the contents of the guest terminal to a file so that I can 
run with nogui in batch mode.

I added a simple screen dump to bx_nogui_gui_c::text_update() (and in 
bx_x_gui_c::text_update for testing).  I noticed that if text is 
scrolling very fast, this doesn't capture it all -- even though the 
screen is updated correctly.  Am I imagining things?  If not, what am I 
doing wrong?



void
bx_nogui_gui_c::text_update(Bit8u *old_text, Bit8u *new_text,
                       unsigned long cursor_x, unsigned long cursor_y,
                       bx_vga_tminfo_t tm_info, unsigned nrows)
{
   int text_rows = 25;
   int text_cols = 80;
   int i,j;
   char line[81];
   BX_INFO(("text_update...."));
   for(i=0; i<text_rows; i++){
     for(j=0; j<text_cols*2; j+=2){
       if(isprint(new_text[j+i*text_cols*2]))
         line[j/2] = new_text[j+i*text_cols*2];
       else
         line[j/2] = ' ';
     }
     line[80] = '\0';
     BX_INFO(("%s",line));
   }
   BX_INFO(("...complete."));

   UNUSED(old_text);
//UNUSED(new_text);
   UNUSED(cursor_x);
   UNUSED(cursor_y);
   UNUSED(tm_info);
   UNUSED(nrows);
}