7. The dtoa Macro (DWORD to ASCII)

• The dtoa converts 32-bit signed integer (doubleword) to eleven-byte-long ASCII string at destination,

  • dtoa destination, source

  where

  • destination operand is a string of exactly 11 ASCII characters in the data segment.

  • source operand is normally a register or memory operand.

      .DATA           ; Begin initialized data segment
          minus_one   DWORD   0FFFFFFFFh
          dtoa_buffer BYTE    11 DUP (?)
          ..
      .CODE           ; Code segment
          ..
          dtoa    dtoa_buffer, eax ; Convert EAX value to string
          output  dtoa_buffer      ; Print result
          ..
          dtoa    dtoa_buffer, [minus_one]
          output  dtoa_buffer      ; Print result
          ..