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<!---======================= begin_copyright_notice ============================
Copyright (C) 2020-2022 Intel Corporation
SPDX-License-Identifier: MIT
============================= end_copyright_notice ==========================-->
## Opcode
SUBROUTINE = 0x30
## Format
| | |
| --- | --- |
| 0x30(SUBROUTINE) | Label |
## Semantics
```
Declare a subroutine.
```
## Description
```
Marks a new subroutine starting at <label>.
The instruction itself is a nop. Label marks the start of the subroutine, and may be used as the target of a CALL instruction.
```
- **Label(uw):** Index of the label variable for the subroutine. It must be a subroutine label
#### Properties
## Text
```
SUBROUTINE <label>
```
## Notes
There is no instruction to mark the end of a subroutine; a subroutine ends when we reach another SUBROUTINE instruction or the end of file.
|
