Important Notice

The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.

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 11101000       disp (2)
─────────────────┬─────────────────────────┬────────────────────────────────
 CALL  label     │ call  upcase            │ 88/86 19 (88=23)
                 │                         │   286 7+m
                 │                         │   386 7+m
                 │                         │   486 3
─────────────────┴─────────────────────────┴────────────────────────────────
 
 10011010       disp (4)
─────────────────┬─────────────────────────┬────────────────────────────────
 CALL  label     │ call  FAR PTR job       │ 88/86 28 (88=36)
                 │ call  distant           │   286 13+m,pm=26+m*
                 │                         │   386 17+m,pm=34+m*
                 │                         │   486 18,pm=20*
─────────────────┴─────────────────────────┴────────────────────────────────
 
 11111111       mod,010,r/m      disp (0 or 2)
─────────────────┬─────────────────────────┬────────────────────────────────
 CALL  reg       │ call  ax                │ 88/86 16 (88=20)
                 │                         │   286 7+m
                 │                         │   386 7+m
                 │                         │   486 5
─────────────────┼─────────────────────────┼────────────────────────────────
 CALL  mem16     │ call  pointer           │ 88/86 21+EA (88=29+EA)
 CALL  mem32     │ call  [bx]              │   286 11+m
                 │                         │   386 10+m
                 │                         │   486 5
─────────────────┴─────────────────────────┴────────────────────────────────
 
 11111111       mod,011,r/m      disp (4)
─────────────────┬─────────────────────────┬────────────────────────────────
 CALL  mem32     │ call  far_table[di]     │ 88/86 37+EA (88=53+EA)
 CALL  mem48     │ call  DWORD PTR [bx]    │   286 16+m,pm=29+m*
                 │                         │   386 22+m,pm=38+m*
                 │                         │   486 17,pm=20*
─────────────────┴─────────────────────────┴────────────────────────────────
  * Timings for calls through call and task gates are not shown, since
    they are used primarily in operating systems.
 
    80386/486 32-bit addressing mode only.
                                    -♦-