mirror of https://github.com/a2-4am/4cade.git
58 lines
1.1 KiB
Plaintext
58 lines
1.1 KiB
Plaintext
;license:MIT
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;(c) 2021 by Frank M.
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!cpu 6502
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!to "res/DEMO/ROBOTRON.2084",plain
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*=$BF70
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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_KEEP_DIR
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ldx #0 ; read to main memory
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stx ldrhi
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stx ldrlo
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+LDADDR title
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jsr iLoadFileDirect
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lda #<callback
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sta $141D+1
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lda #>callback
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sta $141D+2
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jmp $1400 ; decompress
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callback ldx #6-1
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- lda patch1, x
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sta $4542, x
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dex
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bpl - ; exit on keypress
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ldx #3-1
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- lda patch2, x
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sta $453A, x
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dex
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bpl - ; exit at end of demo cycle
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lda #$D0
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sta $053B ; disable sound
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jsr DisableAccelerator
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+READ_ROM_NO_WRITE
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jmp $4015
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patch1 !byte $AD,$88,$C0,$6C,$FC,$FF
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patch2 !byte $4C,$42,$45
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title !byte x_e-x_b
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x_b !text "X/ROBOTRON.2084/ROBOTRON.2084"
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x_e
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!if * > $C000 {
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!error "code is too large, ends at ", *
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}
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