Virtual register file
View Patent ↗The present disclosure is related to a virtual register file. Source code can be compiled to include references to a virtual register file for data subject to a logical operation. The references can be dereferenced at runtime to obtain physical addresses of memory device elements according to the virtual register file. The logical operation can be performed in the memory device on data stored in the memory device elements.
1. A non-transitory computer readable medium storing instructions executable by a processor to:
define a buffer in host memory with sufficient space to contain backing storage for a virtual register file;
logically split the buffer into virtual vector registers, virtual scalar registers, and virtual control registers, collectively comprising the virtual register file; and
represent a vector register, a scalar register, and a control register with a respective index to the virtual register file at compile time.
2. The medium of claim 1 , including instructions to reference the vector register and the virtual scalar register with a respective index to the virtual register file for a fixed amount of the backing storage.
3. The medium of claim 1 , including instructions to reference the control register with a respective index to the virtual register file for a variable amount of the backing storage.
4. The medium of claim 1 , including instructions to store a base virtual address of a memory device element in the virtual vector register.
5. A method, comprising:
defining a buffer in host memory with sufficient space to contain backing storage for a virtual register file;
logically splitting the buffer into virtual vector registers, virtual scalar registers, and virtual control registers, collectively comprising the virtual register file; and
representing a vector register, a scalar register, and a control register with a respective index to the virtual register file at compile time.
6. The method of claim 5 , further comprising referencing the vector register and the virtual scalar register with a respective index to the virtual register file for a fixed amount of the backing storage.
7. The method of claim 5 , further comprising referencing the control register with a respective index to the virtual register file for a variable amount of the backing storage.
8. The method of claim 5 , further comprising storing a base virtual address of a memory device element in the virtual vector register.
9. An apparatus, comprising:
a processor; and
memory coupled to the processor;
wherein the processor is configured to:
define a buffer in the memory with sufficient space to contain backing storage for a virtual register file;
logically split the buffer into virtual vector registers, virtual scalar registers, and virtual control registers, collectively comprising the virtual register file; and
represent a vector register, a scalar register, and a control register with a respective index to the virtual register file at compile time.
10. The apparatus of claim 9 , wherein the processor is further configured to reference the vector register and the virtual scalar register with a respective index to the virtual register file for a fixed amount of the backing storage.
11. The apparatus of claim 9 , wherein the processor is further configured to reference the control register with a respective index to the virtual register file for a variable amount of the backing storage.
12. The apparatus of claim 9 , wherein the processor is further configured to store a base virtual address of an external memory device element in the virtual vector register.