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anti-m
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support Computer Foosball

This commit is contained in:
Peter Ferrie 2019-05-22 09:22:01 -07:00
parent 1bf17671f4
commit 34f35d6d9c
2 changed files with 47 additions and 2 deletions
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2
src/anti-m.a
View File

@ -236,7 +236,7 @@ StringTable
!word @mainmenu
@header
!text "Anti-M v1.4-pre by 4am 2019-05-13"
!text "Anti-M v1.4-pre by 4am 2019-05-22"
!text "________________________________________",$8D
!text $8D,$8D,$8D,$8D,$8D,$8D,$8D,$8D,$00
@mainmenu

47
src/idsirius.a
View File

@ -5,6 +5,7 @@
; - Beer Run
; - Gamma Goblins
; - Orbitron
; - Computer Foosball
;
IDSirius
lda #8
@ -18,7 +19,7 @@ IDSirius
!byte $A6,$2B ;LDX $2B
!byte $A9,$04 ;LDA #$04
!byte $85,$11 ;STA $11
bcs @exit
bcs @trySirius2
; patch code to regain control after it loads sectors into $400+
ldy #@callback1_e-@callback1
@ -40,6 +41,34 @@ IDSirius
@exit
rts
@trySirius2
lda #8
ldx #1
ldy #20
jsr CompareMemory
!byte $AD,$52,$C0 ;STA $C052
!byte $AD,$57,$C0 ;STA $C057
!byte $AD,$55,$C0 ;STA $C055
!byte $AD,$50,$C0 ;STA $C050
!byte $A0,$00 ;LDY #$00
!byte $84,$00 ;STY $00
!byte $A9,$D0 ;LDA #$D0
!byte $85,$01 ;STA $01
bcs @exit2
; patch code to regain control after it loads sectors into $400+
ldy #@callback3_e-@callback3
- lda @callback3-1,y
sta @callback3x-1,y
dey
bne -
ldx #<@callback3x
stx $0867
ldy #>@callback3x
sty $0868
@exit2
rts
@callback1 !pseudopc $300 {
@callback1x
; replace undocumented opcode with stack pointer restore
@ -96,3 +125,19 @@ IDSirius
rts
}
@callback1_e
@callback3 !pseudopc $BF00 {
@callback3x
; disable ROM check entirely
ldx #$60
lda $69A
cmp #$AD
bne +
stx $69A
jmp $400
; two different versions
+ stx $706
jmp $400
}
@callback3_e