m2isar.backends.etiss.instruction_utils

Utility classes and functions for instruction generation.

Attributes

`data_type_map`
`MEM_VAL_REPL`
`FN_VAL_REPL`

Classes

`CodeString`	Code string object. Tracks generate C++ code and various metadata for recursive
`MemID`	Track a memory access across recursive code generation.
`FnID`	Track a required function call across recursive code generation.
`CodePartsContainer`	Container class to encapsulate different ETISS JIT code snippet types.
`TransformerContext`	Track miscellaneous information throughout the code generation process. Also

Functions

actual_size(size[, min_, max_])

Calculate a fitting c datatype width for any arbitrary size.

Module Contents

data_type_map[source]

MEM_VAL_REPL = 'mem_val_'[source]

FN_VAL_REPL = 'fn_val_'[source]

actual_size(size, min_=8, max_=128)[source]: Calculate a fitting c datatype width for any arbitrary size.

class CodeString(code, static, size, signed, regs_affected=None, line_infos=[])[source]

Code string object. Tracks generate C++ code and various metadata for recursive code generation.

mem_ids: list[MemID][source]

function_calls: list[FnID][source]

line_infos: list[LineInfo][source]

code[source]

static[source]

size[source]

signed[source]

regs_affected[source]

mem_corrected = False[source]

is_literal = False[source]

check_trap = False[source]

property actual_size[source]

property needs_fn_call[source]

property is_mem_access[source]

property write_mem_ids[source]

property read_mem_ids[source]

__str__()[source]

__format__(format_spec)[source]

class MemID[source]

Track a memory access across recursive code generation.

mem_space: m2isar.metamodel.arch.Memory[source]

mem_id: int[source]

index: CodeString[source]

access_size: int[source]

write: bool = None[source]

class FnID[source]

Track a required function call across recursive code generation.

fn_call: m2isar.metamodel.arch.Function[source]

fn_id: int[source]

args: CodeString[source]

class CodePartsContainer[source]

Container class to encapsulate different ETISS JIT code snippet types.

pre_initial_debug_returning: str = None[source]

initial_required: str = None[source]

optional_middle: str = None[source]

appended_required: str = None[source]

appended_optional: str = None[source]

appended_returning_required: str = None[source]

generate()[source]

format(mapping={}, **kwargs)[source]

class TransformerContext(constants: dict[str, arch.Constant], memories: dict[str, arch.Memory], memory_aliases: dict[str, arch.Memory], fields: dict[str, arch.BitFieldDescr], attributes: list[arch.InstrAttribute], functions: dict[str, arch.Function], instr_size: int, native_size: int, arch_name: str, static_scalars: bool, intrinsics, generate_coverage: bool, ignore_static=False)[source]