plonky2/evm/src/cpu/kernel/asm/memory/metadata.asm
2022-10-20 19:29:35 +02:00

68 lines
1.6 KiB
NASM

// 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
%mstore_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
%mstore_current(@SEGMENT_CONTEXT_METADATA)
// stack: (empty)
%endmacro
%macro address
%mload_context_metadata(@CTX_METADATA_ADDRESS)
%endmacro
%macro sender
%mload_context_metadata(@CTX_METADATA_CALLER)
%endmacro
%macro callvalue
%mload_context_metadata(@CTX_METADATA_CALL_VALUE)
%endmacro
%macro msize
%mload_context_metadata(@CTX_METADATA_MSIZE)
%endmacro
%macro update_msize
// stack: offset
%add_const(32)
// stack: 32 + offset
%div_const(32)
// stack: (offset+32)/32 = ceil_div_usize(offset+1, 32)
%mul_const(32)
// stack: ceil_div_usize(offset+1, 32) * 32
%msize
// stack: current_msize, ceil_div_usize(offset+1, 32) * 32
%max
// stack: new_msize
%mstore_context_metadata(@CTX_METADATA_MSIZE)
%endmacro