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When disabling interrupts, restore original interrupt flag afterwards.

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This commit is contained in:
Christian Groessler 2014-01-04 20:05:57 +01:00
parent be595b7304
commit f83c77bace
1 changed files with 15 additions and 8 deletions
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23
libsrc/atari/mou/atrjoy.s
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@ -122,6 +122,7 @@ INSTALL:
; need to do that here, because our mouse interrupt handler doesn't set the
; mouse position if it hasn't changed.
php
sei
jsr CHIDE
lda XPos
@ -130,7 +131,7 @@ INSTALL:
lda YPos
ldx YPos+1
jsr CMOVEY
cli
plp
; Done, return zero (= MOUSE_ERR_OK)
@ -152,9 +153,10 @@ UNINSTALL = HIDE ; Hide cursor on exit
; No return code required.
HIDE: dec visible
php
sei
jsr CHIDE
cli
plp
rts
;----------------------------------------------------------------------------
@ -165,9 +167,10 @@ HIDE: dec visible
; No return code required.
SHOW: inc visible
php
sei
jsr CSHOW
cli
plp
rts
;----------------------------------------------------------------------------
@ -181,6 +184,7 @@ SETBOX: sta ptr1
stx ptr1+1 ; Save data pointer
ldy #.sizeof (MOUSE_BOX)-1
php
sei
@L1: lda (ptr1),y
@ -188,7 +192,7 @@ SETBOX: sta ptr1
dey
bpl @L1
cli
plp
rts
;----------------------------------------------------------------------------
@ -199,6 +203,7 @@ GETBOX: sta ptr1
stx ptr1+1 ; Save data pointer
ldy #.sizeof (MOUSE_BOX)-1
php
sei
@L1: lda XMin,y
@ -206,7 +211,7 @@ GETBOX: sta ptr1
dey
bpl @L1
cli
plp
rts
;----------------------------------------------------------------------------
@ -217,7 +222,8 @@ GETBOX: sta ptr1
; the screen). No return code required.
;
MOVE: sei ; No interrupts
MOVE: php
sei ; No interrupts
pha
txa
@ -246,7 +252,7 @@ MOVE: sei ; No interrupts
jsr CSHOW
@Ret: cli ; Allow interrupts
@Ret: plp ; Restore interrupt flag
rts
;----------------------------------------------------------------------------
@ -263,6 +269,7 @@ BUTTONS:
POS: ldy #MOUSE_POS::XCOORD ; Structure offset
php
sei ; Disable interrupts
lda XPos ; Transfer the position
sta (ptr1),y
@ -273,7 +280,7 @@ POS: ldy #MOUSE_POS::XCOORD ; Structure offset
iny
sta (ptr1),y
lda YPos+1
cli ; Enable interrupts
plp ; Restore interrupt flag
iny
sta (ptr1),y ; Store last byte