Labels

In this section:

• Introduction
• The execution environment
• The CODE/EDOC facility
• Mixing of Intel 32-bit Assembler and Fortran
• Labels
• Referencing Fortran variables
• Literals
• Halfword and byte forms of instructions
• Using the coprocessor
• Instruction prefixes
• Other assembler facilities
• Other machine-level facilities
• Error messages
• 64-bit assembler

It is possible to jump from Assembler to labelled Fortran statements and vice-versa. As in the above example, labels are Fortran labels and are referred to by preceding the numeric label by a dollar character thus:

    JMP $7

Conditional jumps are coded in 32-bit form when necessary, so these may be used without considerations of range. The LOOP instructions, which do not have 32-bit forms, are not supported by the assembler.