Programming:Keyboard scanning - Revision history

Urusergi: /* Complete keyboard scanning routine */

2026-01-14T14:59:51Z

Complete keyboard scanning routine

← Older revision		Revision as of 14:59, 14 January 2026
Line 171:		Line 171:

	keyscan di ;1 ##%%## C P C VERSION ##%%##		keyscan di ;1 ##%%## C P C VERSION ##%%##
			xor a ;1
	ld hl,keymap ;3		ld hl,keymap ;3
	ld bc,#f782 ;3		ld bc,#f782 ;3
	out (c),c ;4		out (c),c ;4
	ld bc,#f40e ;3		ld bc,#f40e ;3
			out (c),c ;4
	ld e,b ;1		ld e,b ;1
			ld bc,#f6c0 ;3
	out (c),c ;4		out (c),c ;4
	~~ld bc,#f6c0 ;3~~
	ld d,b ;1		ld d,b ;1
	~~out (c),c ;4~~
	~~xor a ;1~~
	out (c),a ;4		out (c),a ;4
			sub c ;1 a=#40 (-#C0)
	ld bc,#f792 ;3		ld bc,#f792 ;3
	out (c),c ;4		out (c),c ;4
	~~ld a,#40 ;2~~		ld c,d ;1 (+41)
	ld c,d ;1 (+42)
	loop ld b,d ;1		loop ld b,d ;1
	out (c),a ;4 select line		out (c),a ;4 select line
Line 195:		Line 195:
	ld bc,#f782 ;3		ld bc,#f782 ;3
	out (c),c ;4		out (c),c ;4
	ei ;1 (+8 = ~~209~~ microseconds)		ei ;1 (+8 = 208 microseconds)
	ret		ret
	</pre>		</pre>

Phi2x: /* See */

2024-06-08T13:09:51Z

See

← Older revision		Revision as of 13:09, 8 June 2024
Line 220:		Line 220:
	The CPC+ and GX4000 have 2 digital joystick ports built-in (and 1 analog joystick port).		The CPC+ and GX4000 have 2 digital joystick ports built-in (and 1 analog joystick port).

	== See ==		== See Also ==

	* [[Digital Joysticks]]		* [[Digital Joysticks]]

Phi2x at 13:06, 8 June 2024

2024-06-08T13:06:06Z

← Older revision		Revision as of 13:06, 8 June 2024
Line 220:		Line 220:
	The CPC+ and GX4000 have 2 digital joystick ports built-in (and 1 analog joystick port).		The CPC+ and GX4000 have 2 digital joystick ports built-in (and 1 analog joystick port).

	See ~~the relevant cpcwiki page:~~ [[Digital Joysticks]]		== See ==

			* [[Digital Joysticks]]
			* [[Keyboard Versions]]

	[[Category:Programming]][[Category:CPC Internal Components]]		[[Category:Programming]][[Category:CPC Internal Components]]

Phi2x: /* Developing programs that use joystick */

2024-06-08T00:25:12Z

Developing programs that use joystick

← Older revision		Revision as of 00:25, 8 June 2024
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	* '''Q,A,O,P,SPACE''' - (Q up, A down, O left, P right, SPACE fire) This is a good solution, and it's a sort of standard (used by many games). It is best for english QWERTY keyboards, on french AZERTY it'd be A-Q-O-P (but because the decoding of the keys is done in software, normally by the OS, the bits in the keyboard matrix are actually the same).		* '''Q,A,O,P,SPACE''' - (Q up, A down, O left, P right, SPACE fire) This is a good solution, and it's a sort of standard (used by many games). It is best for english QWERTY keyboards, on french AZERTY it'd be A-Q-O-P (but because the decoding of the keys is done in software, normally by the OS, the bits in the keyboard matrix are actually the same).

	The standard CPC has only 1 ~~physical~~ joystick port. But it was possible to daisy chain the official Amstrad joysticks. And a common accessory, the joystick port doubler, offered 2 joystick ports.		The standard CPC has only 1 digital joystick port (and no analog joystick port). But it was possible to daisy chain the official Amstrad joysticks. And a common accessory, the joystick port doubler, offered 2 digital joystick ports.

	The CPC+ and GX4000 have 2 joystick ports built-in.		The CPC+ and GX4000 have 2 digital joystick ports built-in (and 1 analog joystick port).

	See the relevant cpcwiki page: [[Digital Joysticks]]		See the relevant cpcwiki page: [[Digital Joysticks]]

	[[Category:Programming]][[Category:CPC Internal Components]]		[[Category:Programming]][[Category:CPC Internal Components]]

Phi2x: /* Developing programs that use joystick */

2024-06-08T00:21:27Z

Developing programs that use joystick

← Older revision		Revision as of 00:21, 8 June 2024
Line 204:		Line 204:
	In addition, it is also nice if the keys could be redefined but that is not necessary.		In addition, it is also nice if the keys could be redefined but that is not necessary.

	The standard CPC can support 3 joystick ~~buttons~~, though many CPC joysticks only have 1 button.		The standard CPC can support 3 buttons per joystick, though many CPC joysticks only have 1 button.

	The CPC+ and GX4000 only support 2 buttons, and the included Amstrad joypads have 2 buttons.		The CPC+ and GX4000 only support 2 buttons per joystick, and the included Amstrad joypads have 2 buttons.

	There are some common keyboard configurations used:		There are some common keyboard configurations used:

Phi2x: /* Developing programs that use joystick */

2024-06-08T00:20:24Z

Developing programs that use joystick

← Older revision		Revision as of 00:20, 8 June 2024
Line 204:		Line 204:
	In addition, it is also nice if the keys could be redefined but that is not necessary.		In addition, it is also nice if the keys could be redefined but that is not necessary.

	The standard CPC can ~~handle~~ 3 joystick buttons, ~~but~~ many CPC joysticks have ~~only~~ 1 button.		The standard CPC can support 3 joystick buttons, though many CPC joysticks only have 1 button.

	The CPC+ and GX4000 ~~can handle~~ 2 ~~joystick~~ buttons ~~only~~, ~~but~~ the Amstrad joypads ~~provided with the machine~~ have 2 ~~different~~ buttons.		The CPC+ and GX4000 only support 2 buttons, and the included Amstrad joypads have 2 buttons.

	There are some common keyboard configurations used:		There are some common keyboard configurations used:

Phi2x: /* Hardware scancodes */

2024-06-08T00:13:03Z

Hardware scancodes

← Older revision		Revision as of 00:13, 8 June 2024
Line 1:		Line 1:
	== Hardware scancodes ==		== Hardware scancodes ==
	~~Joy1 fire3 and Joy2 fire3 only work on Amstrad CPC, not on Amstrad Plus.~~

	=== English table ===		=== English table ===
Line 101:		Line 100:
	\|'''&49''' \|\| DEL \|\| Joy1 fire3 \|\| Joy1 fire2 \|\|Joy1 fire1\|\|Joy1 right\|\|Joy1 left\|\|Joy1 down\|\|Joy1 up		\|'''&49''' \|\| DEL \|\| Joy1 fire3 \|\| Joy1 fire2 \|\|Joy1 fire1\|\|Joy1 right\|\|Joy1 left\|\|Joy1 down\|\|Joy1 up
	\|}		\|}

			Note: Fire3 only work on Amstrad CPC, not on Amstrad Plus.

	== Computing key code ==		== Computing key code ==

Phi2x: /* Developing programs that use joystick */

2024-06-08T00:10:21Z

Developing programs that use joystick

← Older revision		Revision as of 00:10, 8 June 2024
Line 215:		Line 215:
	* '''Q,A,O,P,SPACE''' - (Q up, A down, O left, P right, SPACE fire) This is a good solution, and it's a sort of standard (used by many games). It is best for english QWERTY keyboards, on french AZERTY it'd be A-Q-O-P (but because the decoding of the keys is done in software, normally by the OS, the bits in the keyboard matrix are actually the same).		* '''Q,A,O,P,SPACE''' - (Q up, A down, O left, P right, SPACE fire) This is a good solution, and it's a sort of standard (used by many games). It is best for english QWERTY keyboards, on french AZERTY it'd be A-Q-O-P (but because the decoding of the keys is done in software, normally by the OS, the bits in the keyboard matrix are actually the same).

	The standard CPC has only 1 physical joystick port. But it was ~~also~~ possible to daisy chain the official Amstrad joysticks. And a common accessory, the joystick port doubler, offered 2 joystick ports.		The standard CPC has only 1 physical joystick port. But it was possible to daisy chain the official Amstrad joysticks. And a common accessory, the joystick port doubler, offered 2 joystick ports.

	The CPC+ and GX4000 have 2 joystick ports built-in.		The CPC+ and GX4000 have 2 joystick ports built-in.

Phi2x: /* Developing programs that use joystick */

2024-06-08T00:10:00Z

Developing programs that use joystick

← Older revision		Revision as of 00:10, 8 June 2024
Line 215:		Line 215:
	* '''Q,A,O,P,SPACE''' - (Q up, A down, O left, P right, SPACE fire) This is a good solution, and it's a sort of standard (used by many games). It is best for english QWERTY keyboards, on french AZERTY it'd be A-Q-O-P (but because the decoding of the keys is done in software, normally by the OS, the bits in the keyboard matrix are actually the same).		* '''Q,A,O,P,SPACE''' - (Q up, A down, O left, P right, SPACE fire) This is a good solution, and it's a sort of standard (used by many games). It is best for english QWERTY keyboards, on french AZERTY it'd be A-Q-O-P (but because the decoding of the keys is done in software, normally by the OS, the bits in the keyboard matrix are actually the same).

	The standard CPC has only 1 physical joystick port. But a common accessory, the joystick port doubler, offered 2 joystick ports~~. It was also possible to daisy chain the official Amstrad joysticks~~.		The standard CPC has only 1 physical joystick port. But it was also possible to daisy chain the official Amstrad joysticks. And a common accessory, the joystick port doubler, offered 2 joystick ports.

	The CPC+ and GX4000 have 2 joystick ports built-in.		The CPC+ and GX4000 have 2 joystick ports built-in.

Phi2x: /* Developing programs that use joystick */

2024-06-07T23:59:11Z

Developing programs that use joystick

← Older revision		Revision as of 23:59, 7 June 2024
Line 214:		Line 214:

	* '''Q,A,O,P,SPACE''' - (Q up, A down, O left, P right, SPACE fire) This is a good solution, and it's a sort of standard (used by many games). It is best for english QWERTY keyboards, on french AZERTY it'd be A-Q-O-P (but because the decoding of the keys is done in software, normally by the OS, the bits in the keyboard matrix are actually the same).		* '''Q,A,O,P,SPACE''' - (Q up, A down, O left, P right, SPACE fire) This is a good solution, and it's a sort of standard (used by many games). It is best for english QWERTY keyboards, on french AZERTY it'd be A-Q-O-P (but because the decoding of the keys is done in software, normally by the OS, the bits in the keyboard matrix are actually the same).

			The standard CPC has only 1 physical joystick port. But a common accessory, the joystick port doubler, offered 2 joystick ports. It was also possible to daisy chain the official Amstrad joysticks.

			The CPC+ and GX4000 have 2 joystick ports built-in.

			See the relevant cpcwiki page: [[Digital Joysticks]]

	[[Category:Programming]][[Category:CPC Internal Components]]		[[Category:Programming]][[Category:CPC Internal Components]]