Constant _dr_isa_mode_t_DR_ISA_REGDEPS 

pub const _dr_isa_mode_t_DR_ISA_REGDEPS: _dr_isa_mode_t = 6;

A synthetic ISA that has the purpose of preserving register dependencies and giving hints on the type of operation an instruction performs.

Being a synthetic ISA, some routines that work on instructions coming from an actual ISA (such as #DR_ISA_AMD64) are not supported (e.g., decode_sizeof()).

Currently we support:

• instr_convert_to_isa_regdeps(): to convert an #instr_t of an actual ISA to a #DR_ISA_REGDEPS #instr_t.
• instr_encode() and instr_encode_to_copy(): to encode a #DR_ISA_REGDEPS #instr_t into a sequence of contiguous bytes.
• decode() and decode_from_copy(): to decode an encoded #DR_ISA_REGDEPS instruction into an #instr_t.

A #DR_ISA_REGDEPS #instr_t contains the following information:

• categories: composed by #dr_instr_category_t values, they indicate the type of operation performed (e.g., a load, a store, a floating point math operation, a branch, etc.). Note that categories are composable, hence more than one category can be set. This information can be obtained using instr_get_category().
• arithmetic flags: we don’t distinguish between different flags, we only report if at least one arithmetic flag was read (all arithmetic flags will be set to read) and/or written (all arithmetic flags will be set to written). This information can be obtained using instr_get_arith_flags().
• number of source and destination operands: we only consider register operands. This information can be obtained using instr_num_srcs() and instr_num_dsts().
• source operation size: is the largest source operand the instruction operates on. This information can be obtained by accessing the #instr_t operation_size field.
• list of register operand identifiers: they are contained in #opnd_t lists, separated in source and destination. Note that these #reg_id_t identifiers are virtual and it should not be assumed that they belong to any DR_REG_ enum value of any specific architecture. These identifiers are meant for tracking register dependencies with respect to other #DR_ISA_REGDEPS instructions only. These lists can be obtained by walking the #instr_t operands with instr_get_dst() and instr_get_src().
• ISA mode: is always #DR_ISA_REGDEPS. This information can be obtained using instr_get_isa_mode().
• encoding bytes: an array of bytes containing the #DR_ISA_REGDEPS #instr_t encoding. Note that this information is present only for decoded instructions (i.e., #instr_t generated by decode() or decode_from_copy()). This information can be obtained using instr_get_raw_bits().
• length: the length of the encoded instruction in bytes. Note that this information is present only for decoded instructions (i.e., #instr_t generated by decode() or decode_from_copy()). This information can be obtained by accessing the #instr_t length field.

Note that all routines that operate on #instr_t and #opnd_t are also supported for #DR_ISA_REGDEPS instructions. However, querying information outside of those described above (e.g., the instruction opcode with instr_get_opcode()) will return the zeroed value set by instr_create() or instr_init() when the #instr_t was created (e.g., instr_get_opcode() would return OP_INVALID).