dot-switch.md

Asmc Macro Assembler Reference

.SWITCH

.SWITCH [[ JMP ]] [[ C | PASCAL ]] [[ expression ]]

The switch exists in three variants:

• Structured switch (Pascal): selects exactly one branch; each .CASE directive is a closed branch.
• Unstructured switch (C, default): behaves like a C switch. Each .CASE directive is a label and the .CASE directives are not closed, so execution falls through into the next .CASE until a .ENDC statement.
• Control-table switch (no arguments): the expression of each .CASE directive is evaluated at runtime. Otherwise, similar to the unstructured switch.

The JMP option skips the range-test in the jump code.

See Also

Conditional Control Flow | Option Switch