plonky2/evm/src/cpu/kernel/asm/memory/metadata.asm

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// Load the given global metadata field from memory.
%macro mload_global_metadata(field)
// stack: (empty)
PUSH $field
// stack: offset
%mload_kernel(@SEGMENT_GLOBAL_METADATA)
// stack: value
%endmacro
// Store the given global metadata field to memory.
%macro mstore_global_metadata(field)
// stack: value
PUSH $field
// stack: offset, value
%mload_kernel(@SEGMENT_GLOBAL_METADATA)
// stack: (empty)
%endmacro
// Load the given context metadata field from memory.
%macro mload_context_metadata(field)
// stack: (empty)
PUSH $field
// stack: offset
%mload_current(@SEGMENT_CONTEXT_METADATA)
// stack: value
%endmacro
// Store the given context metadata field to memory.
%macro mstore_context_metadata(field)
// stack: value
PUSH $field
// stack: offset, value
%mload_current(@SEGMENT_CONTEXT_METADATA)
// stack: (empty)
%endmacro