Module ast

Components relating to the abstract syntax trees (ASTs) used in representing assembly instructions.

These components together are used to construct…

• asm::AsmInstr (a data structure holding an assembly source code instruction),
• asm::Directive (a data structure holding an assembly source code directive),
• and sim::SimInstr (a data structure holding a bytecode instruction).

Modules

asm

This module holds the AST for statements from assembly source code.

sim

This module is used for holding simulation instructions (SimInstr), which are instructions that directly map to bytecode.

Structs

Label

A label.

Offset

A value representing an offset or an immediate value.

Enums

ImmOrReg

A value representing either an immediate value or a register.

OffsetNewErr

The errors that can result from calling Offset::new.

PCOffset

An offset or a label.

Reg

A register. Must be between 0 and 7.

Type Aliases

CondCode

A condition code (used for BR), must be between 0 and 7.

IOffset

A value representing a signed offset or a signed immediate value.

TrapVect8

An unsigned 8-bit trap vector (used for TRAP).