mirror of
https://github.com/bobbimanners/emailler.git
synced 2024-11-18 06:08:04 +00:00
47 lines
1.2 KiB
ArmAsm
47 lines
1.2 KiB
ArmAsm
|
.export check_for_abort_key
|
||
|
|
.export abort_key
|
||
|
|
.exportzp abort_key_default = $9b
|
||
|
|
.exportzp abort_key_disable = $80
|
||
|
|
|
||
|
|
|
||
|
|
.data
|
||
|
|
|
||
|
|
abort_key: .byte $9b ; ESC
|
||
|
|
|
||
|
|
|
||
|
|
.code
|
||
|
|
|
||
|
|
; check whether the abort key is being pressed
|
||
|
|
; inputs: none
|
||
|
|
; outputs: sec if abort key pressed, clear otherwise
|
||
|
|
check_for_abort_key:
|
||
|
|
lda $c000 ; current key pressed
|
||
|
|
cmp abort_key
|
||
|
|
bne :+
|
||
|
|
bit $c010 ; clear the keyboard strobe
|
||
|
|
sec
|
||
|
|
rts
|
||
|
|
: clc
|
||
|
|
rts
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
; -- LICENSE FOR a2_inputc.s --
|
||
|
|
; The contents of this file are subject to the Mozilla Public License
|
||
|
|
; Version 1.1 (the "License"); you may not use this file except in
|
||
|
|
; compliance with the License. You may obtain a copy of the License at
|
||
|
|
; http://www.mozilla.org/MPL/
|
||
|
|
;
|
||
|
|
; Software distributed under the License is distributed on an "AS IS"
|
||
|
|
; basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
|
||
|
|
; License for the specific language governing rights and limitations
|
||
|
|
; under the License.
|
||
|
|
;
|
||
|
|
; The Original Code is ip65.
|
||
|
|
;
|
||
|
|
; The Initial Developer of the Original Code is Jonno Downes,
|
||
|
|
; jonno@jamtronix.com.
|
||
|
|
; Portions created by the Initial Developer are Copyright (C) 2009
|
||
|
|
; Jonno Downes. All Rights Reserved.
|
||
|
|
; -- LICENSE END --
|