-     ; various syntax errors 
-     DEVICE  NONE x 
-     DEVICE  NONE, 
-     DEVICE  NONE,, 
-     DEVICE  NONE, 0     ; error valid range (ZX-like expected) 
-     DEVICE  NONE, $8000,    ; error for extra argument 
-     DEVICE  NONE, $8000, 0  ; error for extra argument 
-     ; following two are "good", because NONE ignores any ramtop value 
-     DEVICE  NONE, $5D00 
-     DEVICE  NONE, $5D01 
-   
-     ; more checks exercised 
-     DEVICE  ZXSPECTRUMNEXT, 0 
-     DEVICE  ZXSPECTRUMNEXT, $5D00   ; warning about ignoring ramtop 
-     DEVICE  ZXSPECTRUMNEXT, $5D01   ; device was already initialized, silent line (still ignoring ramtop) 
-     DEVICE  ZXSPECTRUMNEXT          ; no warning (just switching) 
-   
-     DEVICE  ZXSPECTRUM256, 0 
-     DEVICE  ZXSPECTRUM256 
-     DEVICE  ZXSPECTRUM256, $5D00    ; was already opened with default RAMTOP 
-     DEVICE  ZXSPECTRUM256           ; no warning (same ramtop) 
-   
-     DEVICE  ZXSPECTRUM128, $5D00-1  ; error value 
-     DEVICE  ZXSPECTRUM128, $FFFF+1  ; error value 
-     DEVICE  ZXSPECTRUM128, $FFFF 
-     DEVICE  ZXSPECTRUM128           ; no warning (just switching device to zx128) 
-     DEVICE  ZXSPECTRUM128, $FFFE    ; warning about different RAMTOP 
-   
-     DEVICE  NOSLOT64K, 0 
-     DEVICE  NOSLOT64K, $5D00    ; warning about ignoring ramtop 
-     DEVICE  NOSLOT64K, $5D01    ; device was already initialized, silent line (still ignoring ramtop) 
-     DEVICE  NOSLOT64K           ; no warning (just switching) 
-   
-     DEVICE  AMSTRADCPC464, 0 
-     DEVICE  AMSTRADCPC464, $5D00    ; warning about ignoring ramtop 
-     DEVICE  AMSTRADCPC464, $5D01    ; device was already initialized, silent line (still ignoring ramtop) 
-     DEVICE  AMSTRADCPC464           ; no warning (just switching) 
-   
-     DEVICE  AMSTRADCPC6128, 0 
-     DEVICE  AMSTRADCPC6128, $5D00   ; warning about ignoring ramtop 
-     DEVICE  AMSTRADCPC6128, $5D01   ; device was already initialized, silent line (still ignoring ramtop) 
-     DEVICE  AMSTRADCPC6128          ; no warning (just switching) 
-