; COOL · ACPI-class · local Processor cooling max 3
; LINEAR BGS->BGF->SDF · atoms EZZIE PHI THERMO on BGF · free rides · no duo
; edi=state → clamp 0..3 |1
        mov     eax, edi
        test    eax, eax
        jns     .p
        xor     eax, eax
.p:     cmp     eax, 3
        jle     .ok
        mov     eax, 3
.ok:    or      eax, 1
        ret