The Commodore (64) - An Analog Substrate Experiment

; ============================================================================
; HDGL — CROSS-COUPLED DUAL-AXIS SUBSTRATE KERNEL
;
; Trajectories:
;   Axis 1 (Forward): (a, b) → (a+b, a)
;   Axis 2 (Inverse): (c, d) → (d, c-d)
;
; Non-Linear Coupling:
;   The systems inject cross-entropy by XORing their state vectors.
;   The mixing matrix is dynamically masked by the parity of Axis 1.
; ============================================================================

BITS 64

section .text

global _start

_start:
    ; --- INITIALIZE AXIS 1 (Forward) ---
    mov     r8, 0             ; r8  = a
    mov     r9, 1             ; r9  = b

    ; --- INITIALIZE AXIS 2 (Inverse) ---
    mov     r10, 0            ; r10 = c
    mov     r11, 1            ; r11 = d

.coupled_loop:

    ; === 1. STEP BOTH AXES IN PARALLEL ===
    
    ; Axis 1 Step
    mov     rax, r8           ; rax = old_a
    add     r8, r9            ; r8  = new_a (old_a + old_b)
    mov     r9, rax           ; r9  = new_b (old_a)

    ; Axis 2 Step
    mov     rbx, r10          ; rbx = old_c
    mov     r10, r11          ; r10 = new_c (old_d)
    sub     rbx, r11          ; rbx = old_c - old_d
    mov     r11, rbx          ; r11 = new_d (old_c - old_d)


    ; === 2. NON-LINEAR CROSS-COUPLING ===
    ; We construct a dynamic bitmask based on the parity of Axis 1 (b-coordinate).
    ; If r9 is odd, mask becomes all 1s (0xFFFFFFFFFFFFFFFF). If even, all 0s.
    
    mov     rcx, r9           ; Extract state from Axis 1
    and     rcx, 1            ; Isolate the lowest bit
    neg     rcx               ; Mathematical mask generation (0 -> 0, 1 -> -1/all 1s)

    ; Compute the cross-entropy delta between the two internal spaces
    mov     rdx, r8           ; rdx = Axis 1 (a)
    xor     rdx, r10          ; rdx = a XOR c
    and     rdx, rcx          ; Apply the dynamic parity mask

    ; Apply the balanced feedback injection to both systems simultaneously
    xor     r8, rdx           ; Permute Axis 1 (a)
    xor     r10, rdx          ; Permute Axis 2 (c)

    ; === CYBERNETIC LOCKED STATE ===
    ; The field norms are no longer cleanly isolated to ±1. 
    ; They are now bound together in a high-entropy, deterministic cycle.

    jmp     .coupled_loop