2021-10-31 01:20:30 +00:00
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;license:MIT
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;(c) 2021 by Frank M.
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!cpu 6502
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!to "res/DEMO/TUNNEL.TERROR",plain
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*=$BD00
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!source "src/constants.a" ; no code in these
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!source "src/macros.a"
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+READ_RAM2_WRITE_RAM2
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jsr EnableAccelerator
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+LOAD_FILE_AT title, $00
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+READ_ROM_NO_WRITE
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lda #1 ; reset vector fix
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sta $6E13 ; to $3F3
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lda #$A4
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sta $6E15 ; to $3F4 (doesn't change $3F2)
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lda #$60
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sta $4026
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jsr $4000 ; decompress and show title
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lda #$4C
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sta $0EFE
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sta $06A4
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sta $AD10
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sta $0E66
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sta $1315+2
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lda #0
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sta $0EFE+1
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sta $06A4+1
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sta $AD10+1
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sta $0E66+1
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sta $1315+3
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sta $0F5D+1
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sta $0F72+1
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lda #1
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2021-10-31 20:58:09 +00:00
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sta $03FF ; fix IRQ
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2021-10-31 01:20:30 +00:00
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sta $0EFE+2
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sta $06A4+2
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sta $AD10+2
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sta $0E66+2
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sta $1315+4 ; set exits
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lda #$10
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sta $1315
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lda #$1B
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sta $1315+1
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lda #$A9
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sta $0F5D
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sta $0F72
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lda #$EA
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sta $0F5D+2
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sta $0F72+2
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lda #$AD
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sta $8434
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sta $8441
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lda #$30
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sta $8434+1
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sta $8441+1
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lda #$D0
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sta $8434+2
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sta $8441+2 ; disable sound
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+DISABLE_ACCEL
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jmp $E00
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title !byte x_e-x_b
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x_b !text "X/TUNNEL.TERROR/TUNNEL.TERROR"
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x_e
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!if * > $BFD0 {
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!error "code is too large, ends at ", *
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}
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