hex.address_and_variable_double_xor

address1(bit_address) ^= src
var1 ^= src
address2(bit_address) ^= src
var2 ^= src
var1,var2,src are hex[:n], address1,address2 are addresses.

Signature

def address_and_variable_double_xor n, address1, var1, address2, var2, src { ... }

Defined in hex/logics.fj — lines 149–156 (view on GitHub).

Complexity

• Time: n(@+12)

• Space: n(@+60)

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

Source

Click to view the macro body

def address_and_variable_double_xor n, address1, var1, address2, var2, src {
    rep(n, i) .quadrupled_exact_xor \
        address1+4*i+3, address1+4*i+2, address1+4*i+1, address1+4*i+0, \
        var1+dbit+i*dw+3, var1+dbit+i*dw+2, var1+dbit+i*dw+1, var1+dbit+i*dw+0, \
        address2+4*i+3, address2+4*i+2, address2+4*i+1, address2+4*i+0, \
        var2+dbit+i*dw+3, var2+dbit+i*dw+2, var2+dbit+i*dw+1, var2+dbit+i*dw+0, \
        src+i*dw
}

Used by

• hex.pointers.set_flip_and_jump_pointers

Example uses

• hex.pointers.set_flip_and_jump_pointers in hex/pointers/basic_pointers.fj

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