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Don't save original IRQ, NMI, and RESET vectors -- it's not needed.

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This commit is contained in:
Christian Groessler 2013-06-28 01:08:07 +02:00
parent 1e9823306a
commit 250e26c56e
4 changed files with 11 additions and 26 deletions
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10
libsrc/atari/save_area.inc
View File

@ -1,7 +1,11 @@
;
; Atari XL, shared data between 2nd load chunk and main chunk, header file
;
; Contains old values of modified system variables and ports.
;
; Christian Groessler, chris@groessler.org, 2013
;
.import IRQ_save
.import NMI_save
.import RESET_save
.import SAVMSC_save .import SAVMSC_save
.import MEMTOP_save .import MEMTOP_save
.import APPMHI_save .import APPMHI_save

8
libsrc/atari/save_area.s
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@ -1,5 +1,5 @@
; ;
; Atari XL, shared data between 2nd load chunk and main chunk ; Atari XL, shared data between 2nd load chunk and main chunk, definition file
; ;
; Contains old values of modified system variables and ports. ; Contains old values of modified system variables and ports.
; ;
@ -8,9 +8,6 @@
.if .defined(__ATARIXL__) .if .defined(__ATARIXL__)
.export IRQ_save
.export NMI_save
.export RESET_save
.export SAVMSC_save .export SAVMSC_save
.export MEMTOP_save .export MEMTOP_save
.export APPMHI_save .export APPMHI_save
@ -21,9 +18,6 @@
.segment "SAVEAREA" .segment "SAVEAREA"
IRQ_save: .res 2
NMI_save: .res 2
RESET_save: .res 2
SAVMSC_save: .res 2 SAVMSC_save: .res 2
MEMTOP_save: .res 2 MEMTOP_save: .res 2
APPMHI_save: .res 2 APPMHI_save: .res 2

6
libsrc/atari/shadow_ram_handlers.s
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@ -145,7 +145,7 @@ my_IRQ_han:
pla pla
plp plp
.endif .endif
int_wrap IRQ_save int_wrap $FFFE
my_NMI_han: my_NMI_han:
.ifdef DEBUG .ifdef DEBUG
@ -174,11 +174,11 @@ my_NMI_han:
pla pla
tax tax
pla pla
int_wrap NMI_save int_wrap $FFFA
my_RESET_han: my_RESET_han:
enable_rom enable_rom
jmp (RESET_save) jmp ($FFFC)
; System request handlers ; System request handlers

13
libsrc/atari/shadow_ram_prepare.s
View File

@ -88,19 +88,6 @@ sramprep:
lda SIOV+2 lda SIOV+2
sta ZP_SIOV_save+2 sta ZP_SIOV_save+2
lda $fffe
sta IRQ_save
lda $ffff
sta IRQ_save+1
lda $fffc
sta RESET_save
lda $fffd
sta RESET_save+1
lda $fffa
sta NMI_save
lda $fffb
sta NMI_save+1
; disable BASIC ; disable BASIC
lda PORTB lda PORTB