hex.pointers.set_flip_and_jump_pointers

Sets both to_flip and to_flip_var, and to_jump and to_jump_var to point to the given pointer.
(  to_flip{_var} = ptr  )
(  to_jump{_var} = ptr  )
ptr is a hex[:w/4] that holds an address.

Signature

def set_flip_and_jump_pointers ptr < .to_flip, .to_flip_var, .to_jump, .to_jump_var { ... }

Defined in hex/pointers/basic_pointers.fj — lines 75–79 (view on GitHub).

Complexity

• Time: w(0.75@+5)

• Space: w(0.75@+29)

See the complexity glossary for what @, w, dw, dbit, n mean.

Source

Click to view the macro body

def set_flip_and_jump_pointers ptr < .to_flip, .to_flip_var, .to_jump, .to_jump_var {
    ..address_and_variable_xor w/4, .to_flip, .to_flip_var, .to_flip_var
    ..address_and_variable_xor w/4, .to_jump+w, .to_jump_var, .to_jump_var
    ..address_and_variable_double_xor w/4, .to_flip, .to_flip_var, .to_jump+w, .to_jump_var, ptr
}

Depends on

• hex.address_and_variable_double_xor

• hex.address_and_variable_xor

Used by

• hex.write_byte/2

• hex.write_hex/2

• hex.xor_byte_from_ptr

• hex.xor_hex_from_ptr

• hex.zero_ptr

Example uses

• hex.xor_hex_from_ptr in hex/pointers/xor_from_pointer.fj

• hex.xor_byte_from_ptr in hex/pointers/xor_from_pointer.fj

• hex.write_hex in hex/pointers/write_pointers.fj

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