Programming:Unlocking a protected basic file - Revision history

Morn at 15:53, 9 November 2011

2011-11-09T15:53:45Z

Nocash at 11:20, 18 April 2010

2010-04-18T11:20:56Z

ZilogMonkey at 06:40, 16 April 2010

2010-04-16T06:40:17Z

Nocash at 11:21, 15 April 2010

2010-04-15T11:21:11Z

Tlb: Created page with 'You can protect a basic program by saving it with save"filename",p You can still '''run"''' a protected basic file, but can't '''load"''' and list it. There is a way to unlo…'

2010-04-14T19:27:37Z

Created page with 'You can protect a basic program by saving it with save"filename",p You can still '''run"''' a protected basic file, but can't '''load"''' and list it. There is a way to unlo…'

New page

You can protect a basic program by saving it with

save"filename",p

You can still '''run"''' a protected basic file, but can't '''load"''' and list it.

There is a way to unlock these basic files. This only works on a CPC 464 (real machine or emulator).

Type this:

poke &ac02,&90
poke &ac03,&c0
poke &ac01,&c3

then '''load"''' the protected basic file.
Done.

Now you can '''list''' this program.

@@ Line 29: / Line 29: @@
 DATA 21,10,be,11,0b,be,06,81,c3,e0,bc,af,32,2c,ae,c9
 In the 664/6128/Plus, that flag is at AE2Ch. For the 464, it would need to be changed to AE45h, or, use the simplier POKE AC0Xh method on CPC464.
 == Other Tools ==

← Older revision		Revision as of 11:20, 18 April 2010
Line 30:		Line 30:
	In the 664/6128/Plus, that flag is at AE2Ch. For the 464, it would need to be changed to AE45h, or, use the simplier POKE AC0Xh method on CPC464.		In the 664/6128/Plus, that flag is at AE2Ch. For the 464, it would need to be changed to AE45h, or, use the simplier POKE AC0Xh method on CPC464.

		+	== Other Tools ==
		+
		+	* Speedcop (part of the [[Draysoft Doubler]] package) allows to remove protection from cassette files

	[[Category:Programming]]		[[Category:Programming]]

← Older revision		Revision as of 06:40, 16 April 2010
Line 29:		Line 29:
	30 DATA 21,10,be,11,0b,be,06,81,c3,e0,bc,af,32,2c,ae,c9		30 DATA 21,10,be,11,0b,be,06,81,c3,e0,bc,af,32,2c,ae,c9
	In the 664/6128/Plus, that flag is at AE2Ch. For the 464, it would need to be changed to AE45h, or, use the simplier POKE AC0Xh method on CPC464.		In the 664/6128/Plus, that flag is at AE2Ch. For the 464, it would need to be changed to AE45h, or, use the simplier POKE AC0Xh method on CPC464.
		+
		+
		+	[[Category:Programming]]

@@ Line 5: / Line 5: @@
 You can still '''run"''' a protected basic file, but can't '''load"''' and list it.
-There is a way to unlock these basic files. This only works on a CPC 464 (real machine or emulator).
+That is, after LOADing, the program is automatically deleted when returning to the BASIC prompt. Same applies when stopping a RUNning program via ESC key.
 Type this:
@@ Line 17: / Line 21: @@
 Now you can '''list''' this program.