Genutzte Ports:
---------------
&FBE0: IN OUT
&FBE1: ?
&FBE2: IN OUT
&FBE3: OUT
&FBE4: OUT



;Reset HD20 aus X-DDOS 2.11 ROM

EEC2  01 E4 FB     .d{   LD    BC,&FBE4
EEC5  ED 79        my    OUT   (C),A
EEC7  3E 32        >2    LD    A,&32
EEC9  CD 64 C9     MdI   CALL  &C964 ;Warten ca. 1 ms * 50, Regs. erhalten
EECC  0D           .     DEC   C     ;BC = &FBE3 (DMA / Interrupts)
EECD  3E 00        >.    LD    A,&00
EECF  ED 79        my    OUT   (C),A ;&00 senden
EED1  0D           .     DEC   C     ;BC = &FBE2 (Select / Configuration)
EED2  ED 78        mx    IN    A,(C) ;lesen
EED4  FE 01        ~.    CP    &01   ;= 1 ?
EED6  C9           I     RET   


EED7  ED 78        mx    IN    A,(C)    ;Lesen
EED9  E6 0F        f.    AND   &0F      ;A = %00001111
EEDB  CB 47        KG    BIT   0,A      ;Bit 0?
EEDD  C0           @     RET   NZ       ;gesetzt!
EEDE  CB 5F        K_    BIT   3,A      ;Bit 3?
EEE0  20 F5         u    JR    NZ,&EED7 ;gesetzt, nochmals testen
EEE2  C9           I     RET