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Stopped the C128 mouse drivers from blocking certain keys such as '1', '2', and 'Q'.

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This extra fix is needed because the C128 keyboard scanner works a little differently than the C64 scanner works.
Fixes #696. Fixes #853.
This commit is contained in:
Greg King
2020-07-14 16:06:21 -04:00
parent 3558c0796d
commit 9023e975df
5 changed files with 15 additions and 14 deletions
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11
libsrc/c128/mou/callback.inc
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@@ -1,11 +1,12 @@
;
; Callback routine called from the IRQ handler after the ROM IRQ handler
; had been run.
; Callback routine, called from the IRQ handler after the ROM IRQ handler
; has been run.
;
; Christian Groessler, 24.04.2014
; 2014-04-24, Christian Groessler
; 2020-07-14, Greg King
;
; Check if there was button/joystick activity before and/or after the ROM handler.
; If there was activity, discard the key presses since they are most
; If there was activity, discard the key presses because they are most
; probably "phantom" key presses.
callback:
@@ -16,7 +17,7 @@ callback:
lda OLD_BUTTONS ; keypress before?
bne @discard_key ; yes, discard key
lda #$7F
lda #$FF
sta CIA1_PRA
lda CIA1_PRB ; Read joystick #0
and #$1F