mirror of https://github.com/a2-4am/4cade.git
67 lines
1.3 KiB
Plaintext
67 lines
1.3 KiB
Plaintext
;license:MIT
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;(c) 2021-2022 by Frank M., qkumba
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!cpu 6502
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!to "build/DEMO/STARGATE#060200",plain
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*=$200
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!source "src/constants.a" ; no code in these
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!source "src/macros.a"
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+GAME_REQUIRES_JOYSTICK
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+ENABLE_ACCEL_LC
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+LOAD_XSINGLE title
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lda #$60
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sta $4697
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jsr $800 ; decompress
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lda #$60
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sta $9A03
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jsr $9A00 ; decompress2
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lda #$10
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sta $0933
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lda #$1E
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sta $0933+1
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ldx #3-1
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- lda patch,x
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sta $0933+2,x
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sta $0905,x
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sta $51C7,x
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sta $51D2,x ; set exits
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dex
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bpl -
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ldx #2-1
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- txa
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sta $47F2,x ; fix reset (moved to $3F2/$3F3/$3F4)
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sta $47FE,x ; fix IRQ (moved to $3FE/$3FF)
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dex
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bpl -
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lda #$A4
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sta $47F2+2 ; fix reset checksum
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lda #$D0
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sta $153B
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sta $5F0E
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sta $50B8
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sta $1DF7
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sta $1151
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sta $16E0
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sta $166B
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sta $167A ; disable sound
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+DISABLE_ACCEL
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jmp $5000
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patch !byte $4C,$00,$01
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title !byte x_e-x_b
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x_b !text "STARGATE"
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x_e
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!if * > $3F0 {
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!error "code is too large, ends at ", *
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}
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