Online help features additional information about the topics discussed in this chapter. From the “MASM 6.0 Contents” screen for MASM online help, select the following topics:
| BYTE, WORD, ... | Choose “Directives” and then “Data Allocation” | 
| Bitwise logical operations | Choose “Operators” and then from the list of operators, choose “Logical and Shift” | 
| Location counter | Choose “Predefined Symbols” for information on the $ symbol | 
| BSF, BSR, SHLD, SHRD, and SETcondition | From the “Processor Instructions” categories, choose “Logical and Shift” | 
| LES,  LFS,  LGS | From the “Processor Instructions” categories, choose “Data Transfer” | 
| .RADIX directive | Choose “Directives” and then choose “Miscellaneous” | 
| MOD | Choose “Operators,” and then “Arithmetic” | 
| OPATTR, .TYPE, HIGH, LOW, HIGHWORD, and  LOWWORD | Choose “Operators,” then “Miscellaneous” | 
| OPTION EXPR32, OPTION EXPR16, | Choose “Directives,” and then “OPTION” |