Accelerated read, modify, write operations

A method, comprising:

• identifying a first input instruction in a code stream to be executed by a processor of a microcontroller;
• determining that the first input instruction is to perform a read-modify-write operation to target a memory location included in a peripheral of the processor of the microcontroller;
• based on determining that the first input instruction is to perform the read-modify-write operation to target the memory location included in the peripheral of the processor of the microcontroller, converting the first input instruction to a second input instruction to target the memory location included in the peripheral of the processor of the microcontroller with a mask to cause an atomic operation to implement the read-modify-write operation;
• and
• determining that the read-modify-write operation of the first input instruction is to be executed by the peripheral of the processor of the microcontroller;
• wherein the converting the first input instruction to the second input instruction includes, based on the determining that the read-modify-write operation of the first input instruction is to be executed by the peripheral of the processor of the microcontroller, converting the first input instruction to the second input instruction to cause the atomic operation to be executed by the peripheral of the processor of the microcontroller with the mask;
• wherein the converting the first input instruction to the second input instruction includes providing a bit-specific sideband function, the bit-specific sideband function identifying an operation different from an operation of the second input instruction, to instruct the peripheral to perform the read-modify-write operation on a bit according to the mask.

An article of manufacture comprising a non-transitory machine-readable medium, the medium comprising instructions, the instructions, when read and executed by a processor, cause the processor to execute a first input instruction, the first input instruction to perform a read-modify-write operation through use of a mask on a memory location of a peripheral of a microcontroller to cause an atomic operation to implement the read-modify-write operation;

• wherein:
• the atomic operation is to be performed by the peripheral of the microcontroller;
• the instructions are to cause the processor to cause performance of the atomic operation by the peripheral of the microcontroller with the mask;
• the instructions are to cause the processor to cause performance of the atomic operation by the peripheral of the microcontroller through issuance of a second input instruction including a bit-specific sideband function, the bit-specific sideband function identifying an operation different from an operation of the second input instruction, to instruct the peripheral of the microcontroller to perform the read-modify-write operation on a bit according to the mask.

A method, comprising:

• loading a first input instruction on a processor;
• executing the first input instruction on the processor, the first input instruction to cause performance of a read-modify-write operation, including using a mask on a memory location of a peripheral of a microcontroller to cause an atomic operation to implement the ready-modify-write operation;
• causing performance of the atomic operation by the peripheral with the mask;
• and
• causing performance of the atomic operation by the peripheral with a second input instruction including a bit-specific sideband function, the bit-specific sideband function identifying an operation different from an operation of the second input instruction, to instruct the peripheral to perform the read-modify-write operation on a bit according to the mask.