83Plus:BCALLs:4018 - Revision history

Tari: Describe key repeat handling.

2020-06-18T02:35:21Z

Describe key repeat handling.

Dr. D'nar: blaaaah

2014-05-10T11:31:53Z

blaaaah

Dr. D'nar: Diagonal arrow key presses!

2014-05-10T11:25:12Z

Diagonal arrow key presses!

Dan Englender: Moved from utility to input

2005-04-26T15:33:17Z

Moved from utility to input

Kalimero: fix category

2005-04-13T20:42:12Z

fix category

Woozle: /* Registers Destroyed */

2005-04-08T04:41:19Z

‎Registers Destroyed

Woozle: /* Outputs */

2005-04-08T04:40:45Z

‎Outputs

Woozle at 04:12, 8 April 2005

2005-04-08T04:12:14Z

New page

[[Category:83Plus:BCALLs:By Name:Util|GetCSC]] [[Category:83Plus:BCALLs:By Name|GetCSC]] [[Category:83Plus:BCALLs:By Address|4018 - GetCSC]]
== Synopsis ==
'''Official Name:''' GetCSC

'''BCALL Address:''' 4018

This routine loads the most recent scan code into register A.

=== Inputs ===
* none

=== Outputs ===
* A=(kbdScanCode)
* (kbdScanCode)=0
* kbdSCR,(iy+kbdFlags) reset

=== Registers Destroyed ===
* HL=kbdScanCode

== Comments ==
This routine expects that either interrupts are enabled or KbdScan was called manually. Either of these routines will check the keyboard and load the appropriate scan code into the memory location kbdScanCode and set the flag kbdSCR,(iy+kbdFlags).

@@ Line 24: / Line 24: @@
 == Comments ==
-This routine expects that either interrupts are enabled or KbdScan was called manually.  Either of these routines will check the keyboard and load the appropriate scan code into the memory location kbdScanCode and set the flag kbdSCR,(iy+kbdFlags).
+This routine expects that either interrupts are enabled or [[83Plus:BCALLS:4015|KbdScan]] was called manually.  Either of these routines will check the keyboard and load the appropriate scan code into the memory location kbdScanCode and set the flag kbdSCR,(iy+kbdFlags).
 If you set appWantDiagonalKeys, (iy + mouseFlag1) GetKey will return garbage values for diagonal arrow key presses. In particular, two of the combinations share the same value. So that flag obviously isn't meant for use with GetKey. You should not return to the OS with it set for that reason.

@@ Line 8: / Line 8: @@
 === Inputs ===
-* Set 0, (iy + 2Ch) to receive diagonal arrow key presses (but see comments)
+* Set [[83Plus:Flags:2C|appWantDiagonalKeys, (iy + mouseFlag1)]] to receive diagonal arrow key presses (but see comments)
 === Outputs ===
 * A=([[83Plus:RAM:843F|kbdScanCode]])
-** down + left: 252
+** May contain diagonal arrow key presses. Add these equates to your ti83plus.inc:
-** down + right: 250
+ skDownLeft		EQU	252
-** up + left: 245
+ skDownRight		EQU	250
-** up + right: 243
+ skUpLeft		EQU	245
 * ([[83Plus:RAM:843F|kbdScanCode]])=0
 * kbdSCR,(iy+kbdFlags) reset
 === Registers Destroyed ===
@@ Line 26: / Line 26: @@
 This routine expects that either interrupts are enabled or KbdScan was called manually.  Either of these routines will check the keyboard and load the appropriate scan code into the memory location kbdScanCode and set the flag kbdSCR,(iy+kbdFlags).
-If you set 0, (iy + 2Ch) GetKey will return garbage values for diagonal arrow key presses. In particular, two of the combinations share the same value. So that flag obviously isn't meant for use with GetKey. You should not return to the OS with it set for that reason.
+If you set appWantDiagonalKeys, (iy + mouseFlag1) GetKey will return garbage values for diagonal arrow key presses. In particular, two of the combinations share the same value. So that flag obviously isn't meant for use with GetKey. You should not return to the OS with it set for that reason.

@@ Line 1: / Line 1: @@
-[[Category:83Plus:BCALLs:By Name:Utility|GetCSC]] [[Category:83Plus:BCALLs:By Name|GetCSC]] [[Category:83Plus:BCALLs:By Address|4018 - GetCSC]]
+[[Category:83Plus:BCALLs:By Name:Input|GetCSC]] [[Category:83Plus:BCALLs:By Name|GetCSC]] [[Category:83Plus:BCALLs:By Address|4018 - GetCSC]]
 == Synopsis ==
 '''Official Name:''' GetCSC