High Level Assembler supports the definition of EBCDIC SBCS data constants which are converted to Unicode data constants. A Unicode character (CU-type) data constant (DC) is converted to a Unicode DBCS constant using a code page module. This module is identified using the CODEPAGE assembler option (see CODEPAGE). The code page module must be named ASMAxxxx, where xxxx is the value supplied to the CODEPAGE assembler option.