Basic Data Types

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The basic data types for an assembly program in the intel 80xxx world consist of

  • DB - Byte (8-bits)

  • DW - Word (16-bits)

  • DD - Double-Word (32-bits)

  • DQ - Quad-Word (64-bits)

  • DT - Ten-Byte Packed Decimal - used with the FPU mostly

Structures (p.150) are supported and can be referenced in your book along with arrays (p. 141), strings (p.137), and other common data models in chapter four.